WO2021242012A1 - 패키지기판 - Google Patents
패키지기판 Download PDFInfo
- Publication number
- WO2021242012A1 WO2021242012A1 PCT/KR2021/006562 KR2021006562W WO2021242012A1 WO 2021242012 A1 WO2021242012 A1 WO 2021242012A1 KR 2021006562 W KR2021006562 W KR 2021006562W WO 2021242012 A1 WO2021242012 A1 WO 2021242012A1
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- WIPO (PCT)
- Prior art keywords
- circuit pattern
- insulating layer
- disposed
- connection part
- layer
- Prior art date
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- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
- H05K1/00—Printed circuits
- H05K1/02—Details
- H05K1/11—Printed elements for providing electric connections to or between printed circuits
- H05K1/115—Via connections; Lands around holes or via connections
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- H—ELECTRICITY
- H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
- H10W—GENERIC PACKAGES, INTERCONNECTIONS, CONNECTORS OR OTHER CONSTRUCTIONAL DETAILS OF DEVICES COVERED BY CLASS H10
- H10W70/00—Package substrates; Interposers; Redistribution layers [RDL]
- H10W70/60—Insulating or insulated package substrates; Interposers; Redistribution layers
- H10W70/611—Insulating or insulated package substrates; Interposers; Redistribution layers for connecting multiple chips together
- H10W70/614—Insulating or insulated package substrates; Interposers; Redistribution layers for connecting multiple chips together the multiple chips being integrally enclosed
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- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
- H05K1/00—Printed circuits
- H05K1/02—Details
- H05K1/0271—Arrangements for reducing stress or warp in rigid printed circuit boards, e.g. caused by loads, vibrations or differences in thermal expansion
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- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
- H05K1/00—Printed circuits
- H05K1/18—Printed circuits structurally associated with non-printed electric components
- H05K1/182—Printed circuits structurally associated with non-printed electric components associated with components mounted in printed circuit boards [PCB], e.g. insert-mounted components [IMC]
- H05K1/183—Printed circuits structurally associated with non-printed electric components associated with components mounted in printed circuit boards [PCB], e.g. insert-mounted components [IMC] associated with components mounted in and supported by recessed areas of the PCBs
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- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
- H05K1/00—Printed circuits
- H05K1/18—Printed circuits structurally associated with non-printed electric components
- H05K1/182—Printed circuits structurally associated with non-printed electric components associated with components mounted in printed circuit boards [PCB], e.g. insert-mounted components [IMC]
- H05K1/185—Printed circuits structurally associated with non-printed electric components associated with components mounted in printed circuit boards [PCB], e.g. insert-mounted components [IMC] associated with components encapsulated in the insulating substrate of the PCBs; associated with components incorporated in internal layers of multilayer circuit boards
- H05K1/186—Printed circuits structurally associated with non-printed electric components associated with components mounted in printed circuit boards [PCB], e.g. insert-mounted components [IMC] associated with components encapsulated in the insulating substrate of the PCBs; associated with components incorporated in internal layers of multilayer circuit boards manufactured by mounting on or connecting to patterned circuits before or during embedding
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- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
- H05K3/00—Apparatus or processes for manufacturing printed circuits
- H05K3/30—Assembling printed circuits with electric components, e.g. with resistors
- H05K3/32—Assembling printed circuits with electric components, e.g. with resistors electrically connecting electric components or wires to printed circuits
- H05K3/34—Assembling printed circuits with electric components, e.g. with resistors electrically connecting electric components or wires to printed circuits by soldering
- H05K3/341—Surface mounted components
- H05K3/3415—Surface mounted components on both sides of the substrate or combined with lead-in-hole components
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- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
- H05K3/00—Apparatus or processes for manufacturing printed circuits
- H05K3/40—Forming printed elements for providing electric connections to or between printed circuits
- H05K3/4007—Surface contacts, e.g. bumps
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- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
- H05K3/00—Apparatus or processes for manufacturing printed circuits
- H05K3/46—Manufacturing multilayer circuits
- H05K3/4697—Manufacturing multilayer circuits having cavities, e.g. for mounting components
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- H10W—GENERIC PACKAGES, INTERCONNECTIONS, CONNECTORS OR OTHER CONSTRUCTIONAL DETAILS OF DEVICES COVERED BY CLASS H10
- H10W70/00—Package substrates; Interposers; Redistribution layers [RDL]
- H10W70/01—Manufacture or treatment
- H10W70/05—Manufacture or treatment of insulating or insulated package substrates, or of interposers, or of redistribution layers
- H10W70/095—Manufacture or treatment of insulating or insulated package substrates, or of interposers, or of redistribution layers of vias therein
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- H—ELECTRICITY
- H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
- H10W—GENERIC PACKAGES, INTERCONNECTIONS, CONNECTORS OR OTHER CONSTRUCTIONAL DETAILS OF DEVICES COVERED BY CLASS H10
- H10W70/00—Package substrates; Interposers; Redistribution layers [RDL]
- H10W70/60—Insulating or insulated package substrates; Interposers; Redistribution layers
- H10W70/62—Insulating or insulated package substrates; Interposers; Redistribution layers characterised by their interconnections
- H10W70/63—Vias, e.g. via plugs
- H10W70/635—Through-vias
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- H10W—GENERIC PACKAGES, INTERCONNECTIONS, CONNECTORS OR OTHER CONSTRUCTIONAL DETAILS OF DEVICES COVERED BY CLASS H10
- H10W70/00—Package substrates; Interposers; Redistribution layers [RDL]
- H10W70/60—Insulating or insulated package substrates; Interposers; Redistribution layers
- H10W70/67—Insulating or insulated package substrates; Interposers; Redistribution layers characterised by their insulating layers or insulating parts
- H10W70/68—Shapes or dispositions thereof
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- H—ELECTRICITY
- H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
- H10W—GENERIC PACKAGES, INTERCONNECTIONS, CONNECTORS OR OTHER CONSTRUCTIONAL DETAILS OF DEVICES COVERED BY CLASS H10
- H10W72/00—Interconnections or connectors in packages
- H10W72/20—Bump connectors, e.g. solder bumps or copper pillars; Dummy bumps; Thermal bumps
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- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
- H05K2201/00—Indexing scheme relating to printed circuits covered by H05K1/00
- H05K2201/10—Details of components or other objects attached to or integrated in a printed circuit board
- H05K2201/10007—Types of components
- H05K2201/10015—Non-printed capacitor
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- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
- H05K2201/00—Indexing scheme relating to printed circuits covered by H05K1/00
- H05K2201/10—Details of components or other objects attached to or integrated in a printed circuit board
- H05K2201/10007—Types of components
- H05K2201/10022—Non-printed resistor
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- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
- H05K2201/00—Indexing scheme relating to printed circuits covered by H05K1/00
- H05K2201/10—Details of components or other objects attached to or integrated in a printed circuit board
- H05K2201/10007—Types of components
- H05K2201/1003—Non-printed inductor
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- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
- H05K2201/00—Indexing scheme relating to printed circuits covered by H05K1/00
- H05K2201/10—Details of components or other objects attached to or integrated in a printed circuit board
- H05K2201/10007—Types of components
- H05K2201/10166—Transistor
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- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
- H05K2201/00—Indexing scheme relating to printed circuits covered by H05K1/00
- H05K2201/10—Details of components or other objects attached to or integrated in a printed circuit board
- H05K2201/10431—Details of mounted components
- H05K2201/10507—Involving several components
- H05K2201/10545—Related components mounted on both sides of the PCB
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- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
- H05K2203/00—Indexing scheme relating to apparatus or processes for manufacturing printed circuits covered by H05K3/00
- H05K2203/07—Treatments involving liquids, e.g. plating, rinsing
- H05K2203/0703—Plating
- H05K2203/0723—Electroplating, e.g. finish plating
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- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
- H05K3/00—Apparatus or processes for manufacturing printed circuits
- H05K3/22—Secondary treatment of printed circuits
- H05K3/28—Applying non-metallic protective coatings
- H05K3/284—Applying non-metallic protective coatings for encapsulating mounted components
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- H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
- H10W—GENERIC PACKAGES, INTERCONNECTIONS, CONNECTORS OR OTHER CONSTRUCTIONAL DETAILS OF DEVICES COVERED BY CLASS H10
- H10W70/00—Package substrates; Interposers; Redistribution layers [RDL]
- H10W70/01—Manufacture or treatment
- H10W70/05—Manufacture or treatment of insulating or insulated package substrates, or of interposers, or of redistribution layers
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- H—ELECTRICITY
- H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
- H10W—GENERIC PACKAGES, INTERCONNECTIONS, CONNECTORS OR OTHER CONSTRUCTIONAL DETAILS OF DEVICES COVERED BY CLASS H10
- H10W72/00—Interconnections or connectors in packages
- H10W72/01—Manufacture or treatment
- H10W72/012—Manufacture or treatment of bump connectors, dummy bumps or thermal bumps
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- H—ELECTRICITY
- H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
- H10W—GENERIC PACKAGES, INTERCONNECTIONS, CONNECTORS OR OTHER CONSTRUCTIONAL DETAILS OF DEVICES COVERED BY CLASS H10
- H10W72/00—Interconnections or connectors in packages
- H10W72/01—Manufacture or treatment
- H10W72/012—Manufacture or treatment of bump connectors, dummy bumps or thermal bumps
- H10W72/01231—Manufacture or treatment of bump connectors, dummy bumps or thermal bumps using blanket deposition
- H10W72/01233—Manufacture or treatment of bump connectors, dummy bumps or thermal bumps using blanket deposition in liquid form, e.g. spin coating, spray coating or immersion coating
- H10W72/01235—Manufacture or treatment of bump connectors, dummy bumps or thermal bumps using blanket deposition in liquid form, e.g. spin coating, spray coating or immersion coating by plating, e.g. electroless plating or electroplating
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- H—ELECTRICITY
- H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
- H10W—GENERIC PACKAGES, INTERCONNECTIONS, CONNECTORS OR OTHER CONSTRUCTIONAL DETAILS OF DEVICES COVERED BY CLASS H10
- H10W72/00—Interconnections or connectors in packages
- H10W72/071—Connecting or disconnecting
- H10W72/072—Connecting or disconnecting of bump connectors
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- H—ELECTRICITY
- H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
- H10W—GENERIC PACKAGES, INTERCONNECTIONS, CONNECTORS OR OTHER CONSTRUCTIONAL DETAILS OF DEVICES COVERED BY CLASS H10
- H10W72/00—Interconnections or connectors in packages
- H10W72/071—Connecting or disconnecting
- H10W72/072—Connecting or disconnecting of bump connectors
- H10W72/07231—Techniques
- H10W72/07236—Soldering or alloying
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- H10W—GENERIC PACKAGES, INTERCONNECTIONS, CONNECTORS OR OTHER CONSTRUCTIONAL DETAILS OF DEVICES COVERED BY CLASS H10
- H10W72/00—Interconnections or connectors in packages
- H10W72/20—Bump connectors, e.g. solder bumps or copper pillars; Dummy bumps; Thermal bumps
- H10W72/241—Dispositions, e.g. layouts
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- H10W—GENERIC PACKAGES, INTERCONNECTIONS, CONNECTORS OR OTHER CONSTRUCTIONAL DETAILS OF DEVICES COVERED BY CLASS H10
- H10W74/00—Encapsulations, e.g. protective coatings
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- H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
- H10W—GENERIC PACKAGES, INTERCONNECTIONS, CONNECTORS OR OTHER CONSTRUCTIONAL DETAILS OF DEVICES COVERED BY CLASS H10
- H10W90/00—Package configurations
- H10W90/701—Package configurations characterised by the relative positions of pads or connectors relative to package parts
- H10W90/721—Package configurations characterised by the relative positions of pads or connectors relative to package parts of bump connectors
- H10W90/724—Package configurations characterised by the relative positions of pads or connectors relative to package parts of bump connectors between a chip and a stacked insulating package substrate, interposer or RDL
Definitions
- the embodiment relates to a package substrate.
- the line width of circuits is getting smaller.
- the circuit line width of a package substrate or circuit board on which the semiconductor chip is mounted is reduced to several micrometers or less.
- 'ETS' Embedded Trace Substrate
- the ETS method is advantageous in reducing the circuit pitch because there is no circuit loss due to etching because the copper foil circuit is manufactured by embedding it in the insulating layer instead of forming it on the surface of the insulating layer.
- the 5G communication system uses ultra-high frequency (mmWave) bands (sub 6 gigabytes (6GHz), 28 gigabytes 28GHz, 38 gigabytes 38GHz or higher frequencies) to achieve high data rates.
- mmWave ultra-high frequency bands
- 5G communication systems integrate technologies such as beamforming, massive MIMO, and array antennas. are being developed Considering that these frequency bands can consist of hundreds of active antennas of wavelengths, the antenna system becomes relatively large.
- antennas and AP modules are patterned or mounted on a circuit board, low loss of the circuit board is very important. This means that several substrates constituting the active antenna system, ie, an antenna substrate, an antenna feeding substrate, a transceiver substrate, and a baseband substrate, must be integrated into one compact unit.
- a package substrate having a new structure and a manufacturing method thereof are provided.
- the embodiment provides a package substrate and a method for manufacturing the same, which is easy to respond to a fine pitch.
- the embodiment provides a package substrate capable of minimizing the occurrence of warpage by maintaining the balance of both sides of the circuit board and a method of manufacturing the same.
- the embodiment provides a package substrate capable of improving the reliability of the connection part and a method of manufacturing the same.
- a circuit board including a post bump directly connected to a device buried in an insulating layer and a package board including the same are provided.
- the embodiment provides a circuit board that is easy to respond to a fine pitch and a package board including the same.
- the embodiment provides a circuit board capable of minimizing the occurrence of warpage by maintaining the balance of upper and lower portions, and a package substrate including the same.
- a package substrate includes an insulating layer; a first outer circuit pattern disposed on the insulating layer; a second outer circuit pattern disposed on a lower surface of the insulating layer; a first connection part disposed on an upper surface of the 1-1 circuit pattern of the first outer circuit pattern; a first connection part disposed on the first connection part; a first element disposed on the first connection part through the first connection part; a second connection part disposed on a lower surface of the 2-1 circuit pattern of the second outer circuit pattern; a second element attached to the 2-1 circuit pattern through the second connection part; and a second connection part disposed on a lower surface of a 2-2 circuit pattern of the second outer circuit pattern, wherein the first connection part has a first width and a first interval, and the second connection part includes the second connection part It has a second width greater than one width and a second gap greater than the first gap.
- a seed metal layer disposed between the 1-1 circuit pattern and the first connection part, wherein the seed metal layer includes a first portion disposed between the 1-1 circuit pattern and the first connection part; and a second portion disposed between the first-second circuit pattern and the first solder resist.
- the seed metal layer is a seed layer of the 1-1 circuit pattern, the 1-2 circuit pattern, and the first connection part.
- the first molding layer is disposed on the insulating layer, for molding the first device; and a second molding layer disposed under the insulating layer, for molding the second device, and including an opening exposing a lower surface of the second connection part.
- connection portion a first post bump; and a second post bump spaced apart from the first post bump and having a width different from that of the first post bump.
- the upper surface of the first outer circuit pattern is located on the same plane as the upper surface of the insulating layer or is located lower than the upper surface of the insulating layer, and the side surface of the first outer circuit pattern is covered with the insulating layer all.
- the first molding layer includes an open area, and the open area exposes the first device.
- the first outer circuit pattern protrudes above the upper surface of the insulating layer and is exposed through the open area of the first molding layer, and the bottom surface of the first open area of the first molding layer has the 1 It is located higher than the lower surface of the outer circuit pattern.
- the first open region of the first molding layer includes a first portion adjacent to the first outer circuit pattern and a second portion other than the first portion, and the height of the first portion is determined by the 2 different from the height of the part.
- the first connection part is formed on the first circuit pattern of the circuit board, not on the UBM (Under Bump Metal) of the first device.
- the first connection part may be formed by electroplating the seed metal layer formed for the electroplating of the first circuit pattern as the seed layer.
- bonding strength between the seed metal layer, the first circuit pattern, and the first connection part may be improved.
- since the first connection part is formed on the first circuit pattern there is an effect that it is not necessary to manage the embedding depth of the first circuit pattern having an ETS (Embedded Trace Substrate) structure.
- ETS embedded Trace Substrate
- the embodiment since it is not necessary to manage the embedding depth of the first circuit pattern, it is possible to reduce the interval between the first connection parts or the interval between the first circuit patterns, and thus it is possible to cope with the fine pitch. In addition, in the embodiment, it can be used for a fine bump product according to a decrease in the size width or interval of the first connection part, and thus design freedom can be secured by securing space.
- the first connection part is disposed on the upper side of the insulating layer and the second connection part is disposed on the bottom side of the insulating layer, so that the upper and lower parts of the package substrate can be equally balanced, and thus the package substrate is bent characteristics can be improved.
- the device or the main board is attached by the first connection part and the second connection part, and thus, the product volume can be reduced because it is not necessary to secure the collapse height of the solder ball compared to the solder ball bonding method.
- the attachment of the device or the main board is performed using the first and second connectors having higher thermal conductivity than the solder balls. Accordingly, in the embodiment, it is possible to increase the heat transfer characteristics generated by the device or the main board, thereby improving the heat dissipation characteristics.
- the embodiment by forming the first post bump constituting the second connection part on the circuit board, and attaching the main board using the post bump to manufacture the package board, it is possible to cope with the fine pitch, and accordingly, the manufacturer can maximize productivity.
- the balance of the upper and lower portions of the printed circuit board can be maintained compared to the conventional single-sided molding structure, and the circuit according to this It is possible to minimize the occurrence of warpage of the substrate.
- the lower surface of the molding part to which the main board is attached is placed on the same plane as the lower surface of the element mounted on the lower part of the circuit board, thereby improving the reliability of the connection between the main board and the circuit board.
- the device embedded in the circuit board and the main board are connected by using the second post bump constituting the second connection part. Accordingly, in the embodiment, a plurality of second post bumps corresponding to the pitch of the terminals of the buried device is used, thereby corresponding to the fine pitch.
- the device and the main board are connected through the second post bump, and thus heat dissipation characteristics may be improved.
- the signal transmission distance between the buried device and the main board can be reduced, thereby improving the noise characteristics, The transmission speed can be improved.
- the height of the first post bump can be adjusted as much as the height of the device, and thus the design of the package design is easy.
- the post bumps can be formed using the seed layer of the pad without separately forming a seed layer for electroplating the first and second post bumps constituting the second connection part. Accordingly, it is not necessary to form a separate seed layer for forming the post bumps, thereby simplifying the manufacturing process, solving cracks between the seed layers of the post bumps, and thus product reliability and durability can improve
- 1 is a view showing a package substrate of a comparative example.
- FIG. 2 is a view showing a package substrate of a first type according to the first embodiment.
- FIG 3 is a view showing a package substrate of a second type according to the first embodiment.
- FIG. 4 is a view showing a package substrate of a third type according to the first embodiment.
- 5 to 15 are views showing the manufacturing method of the manufacturing substrate shown in FIG. 4 in order of process.
- 16 is a view showing a printed circuit board according to a second embodiment.
- FIG. 17 is a view showing an open area of the first molding layer of FIG. 16 according to the first embodiment.
- FIG. 18 is a view showing an open area of the first molding layer of FIG. 16 according to the second embodiment.
- 19 to 29 are views showing the manufacturing method of the printed circuit board shown in FIG. 1 in order of process.
- FIG. 30 is a view showing a package substrate according to the second embodiment.
- the singular form may also include the plural form unless otherwise specified in the phrase, and when it is described as "at least one (or one or more) of A and (and) B, C", it is combined with A, B, C It can contain one or more of all possible combinations.
- terms such as first, second, A, B, (a), (b), etc. may be used.
- top (above) or under (below) is one as well as when two components are in direct contact with each other. Also includes a case in which another component as described above is formed or disposed between two components.
- upper (upper) or lower (lower) when expressed as "upper (upper) or lower (lower)", the meaning of not only an upper direction but also a lower direction based on one component may be included.
- 1 is a view showing a package substrate of a comparative example.
- the package substrate of the comparative example includes an insulating layer 10 , a first circuit pattern 20 , a second circuit pattern 25 , a via 30 , a first solder resist 40 , and a second solder resist. 45 , a first connection part 50 , a second connection part 55 , an element 60 , an under bump metal (UBM) 65 , and a connection part 70 .
- UBM under bump metal
- the package substrate of the comparative example includes a circuit board manufactured by the ETS method.
- the package substrate includes an insulating layer 10 and circuit patterns respectively disposed on both surfaces of the insulating layer 10 .
- the circuit pattern includes a first circuit pattern 20 disposed on one surface of the insulating layer 10 and a second circuit pattern 25 disposed on the other surface of the insulating layer 10 .
- one of the first circuit pattern 20 and the second circuit pattern 25 has a structure buried in the insulating layer 10 .
- a via 30 electrically connecting the first circuit pattern 20 and the second circuit pattern 25 is formed in the insulating layer 10 .
- a first solder resist 40 and a second solder resist for protecting the surface of the insulating layer 10 and the first circuit pattern 20 or the second circuit pattern 25 are formed on the upper and lower surfaces of the insulating layer 10 . (45) is arranged.
- first solder resist 40 includes an opening (not shown) exposing the upper surface of the first circuit pattern 20
- second solder resist 45 covers the lower surface of the second circuit pattern 25 . It includes an opening (not shown) to expose.
- the package substrate of the comparative example includes the device 60 mounted on the first circuit pattern 20 .
- an under bump metal (UBM) 65 is formed on the lower surface of the element 60 .
- a connection part 70 is formed under the UBM (Under Bump Metal, 65).
- the connection part 70 is generally referred to as a copper pillar.
- a first connection part is formed between the first circuit pattern 20 and the connection part 70 in a state in which the connection part 70 is formed in the device 60 . by forming (50).
- connection part 70 is formed on the UBM (Under Bump Metal, 65) of the device 60, not the circuit board, and the connection part of the device 60 through the device attachment process. 70 and the first circuit pattern 20 of the circuit board are interconnected by soldering.
- connection part included in the package substrate of this comparative example can reduce the thickness of the package, but there are many restrictions on the device mounting space during design design, and the problem of weak bending characteristics is avoided.
- the connection part 70 is formed in the device 60 .
- the connection portion 70 as described above is formed only on one side of the package substrate, and the connection portion corresponding thereto is not formed on the other side. That is, the package substrate of the comparative example as described above has an asymmetric structure in which the connection part is disposed on only one side around the insulating layer 10 , which has a weak bending characteristic due to a balance problem between the upper and lower portions of the package substrate.
- the package substrate of the comparative example has a smaller contact area depending on the degree of embedding of the first circuit pattern 20 during soldering with the device, and thus there is a problem in connection reliability with the first connection part 50 . can occur
- FIG. 2 is a view showing a package substrate of a first type according to an embodiment.
- the package substrate 100 of the first form includes an insulating layer 110 , a first circuit pattern 120 , a second circuit pattern 125 , a via 130 , a seed metal layer 140 , and a second It includes a first solder resist 160 , a second solder resist 165 , a first connection part 170 , a second connection part 175 , a first connection part 180 , and a second connection part 185 .
- the package substrate 100 of the first type includes a first device 200 and a second device 300 having an under bump metal (UBM) 210 formed thereon.
- UBM under bump metal
- the package substrate according to the embodiment may have a multilayer structure based on the insulating layer of the circuit board. That is, although the circuit board in FIG. 2 is illustrated as including a single insulating layer, the present invention is not limited thereto.
- the package substrate in the embodiment may include a circuit board having a stacked structure of a plurality of insulating layers.
- the insulating layer 110 in the package substrate 100 may have a multilayer structure.
- the first circuit pattern 120 may be disposed on an upper surface of the uppermost insulating layer among the multi-layered insulating layers, and the second circuit pattern 125 may have a multi-layered structure.
- the first circuit pattern 120 may be referred to as a first outer circuit pattern disposed on the uppermost side or the first outermost side of the circuit board.
- the second circuit pattern 125 may be referred to as a second outer circuit pattern disposed on the lowermost side or the second outermost side of the circuit board.
- the insulating layer 110 is formed in one layer.
- a circuit pattern may be disposed on the surface of the insulating layer 110 .
- the first circuit pattern 120 may be formed on the upper surface of the insulating layer 110 .
- a second circuit pattern 125 may be formed on the lower surface of the insulating layer 110 .
- the first circuit pattern 120 may be formed by being buried in the insulating layer 110 .
- the first circuit pattern 120 may have an Embedded Trace Substrate (ETS) structure.
- ETS Embedded Trace Substrate
- a side surface of the first circuit pattern 120 may be surrounded by the insulating layer 110 .
- the top surface of the first circuit pattern 120 may be disposed on the same plane as the top surface of the insulating layer 110 or may be disposed lower than the top surface of the insulating layer 110 .
- a lower surface of the first circuit pattern 120 may be positioned lower than an upper surface of the insulating layer 110 .
- the second circuit pattern 125 may be disposed to protrude under the lower surface of the insulating layer 110 . That is, the upper surface of the second circuit pattern 125 may directly contact the lower surface of the insulating layer 110 .
- the embodiment is not limited thereto, and a seed metal layer (not shown) of the second circuit pattern 125 may be disposed between the upper surface of the second circuit pattern 125 and the lower surface of the insulating layer 110 . There will be.
- the package substrate in the embodiment is manufactured by the ETS method. Accordingly, the first circuit pattern 120 may have a structure buried in the insulating layer 110 , and the second circuit pattern 125 may be formed by the insulating layer. It may have a structure protruding above the surface of 110 .
- the first circuit pattern 120 and the second circuit pattern 125 are wires that transmit electrical signals, and may be formed of a metal material having high electrical conductivity.
- the first circuit pattern 120 and the second circuit pattern 125 are gold (Au), silver (Ag), platinum (Pt), titanium (Ti), tin (Sn), copper (Cu) and It may be formed of at least one metal material selected from zinc (Zn).
- the first circuit pattern 120 and the second circuit pattern 125 have excellent bonding strength of gold (Au), silver (Ag), platinum (Pt), titanium (Ti), tin (Sn), copper ( Cu) and zinc (Zn) may be formed of a paste or solder paste including at least one metal material selected from the group consisting of.
- the first circuit pattern 120 and the second circuit pattern 125 may be formed of copper (Cu), which has high electrical conductivity and is relatively inexpensive.
- each of the first circuit pattern 120 and the second circuit pattern 125 is configured in plurality.
- the first circuit pattern 120 may be referred to as a 1-1 circuit pattern connected to the first connection unit 170 .
- the first circuit pattern 120 may include a 1-2 circuit pattern covered by the first solder resist 160 .
- the second circuit pattern 125 may include a 2-1 circuit pattern in which the second connection part 185 is disposed and the second device 300 is mounted.
- the second circuit pattern 125 may include a 2-2 circuit pattern in which the second connection part 175 is disposed.
- a via 130 may be disposed in the insulating layer 110 .
- the via 130 is disposed in the insulating layer 110 , and accordingly, circuit patterns disposed on different layers may be electrically connected to each other.
- the via 130 may be disposed in the insulating layer 110 , and an upper surface thereof may be connected to a lower surface of the first circuit pattern 120 , and a lower surface thereof may be connected to an upper surface of the second circuit pattern 125 .
- the via 130 may be formed by filling an inside of a via hole (not shown) formed in the insulating layer 110 with a metal material.
- the metal material forming the via 130 may be any one material selected from copper (Cu), silver (Ag), tin (Sn), gold (Au), nickel (Ni), and palladium (Pd).
- the conductive material may be filled using any one or a combination of electroless plating, electrolytic plating, screen printing, sputtering, evaporation, inkjetting and dispensing.
- a seed metal layer 140 is disposed on the upper surface of the insulating layer 110 .
- the seed metal layer 140 may be a seed layer used to form the first circuit pattern 120 by electroplating.
- the seed metal layer 140 may be a seed layer used to form the first connection part 170 to be described later by electroplating. That is, the seed metal layer 140 may be a seed layer of the first circuit pattern 120 and a seed layer of the first connection unit 170 .
- the seed metal layer 140 may be disposed between the first circuit pattern 120 and the first connection part 170 .
- the first circuit pattern 120 may be formed by performing electroplating using the seed metal layer 140 .
- the first connection part 170 may be formed by performing electroplating using the seed metal layer 140 , which is the same seed layer as the first circuit pattern 120 .
- the seed metal layer 140 may be formed by a chemical copper plating process.
- the seed metal layer 140 may have a thin film shape and be formed on the upper surface of the insulating layer 110 .
- the embodiment is not limited thereto, and the seed metal layer 140 may be a copper foil layer (not shown) included in a carrier board (not shown) used for manufacturing the circuit board.
- the seed metal layer 140 includes a first portion disposed between the first circuit pattern 120 and the first connection part 170 .
- a lower surface and an upper surface of the first portion of the seed metal layer 140 may have the same width.
- the lower surface of the first portion of the seed metal layer 140 may have the same width as the upper surface of the first circuit pattern 120 .
- an upper surface of the first portion of the seed metal layer 140 may have the same width as a lower surface of the first connecting portion 170 .
- the first circuit pattern 120 , the first portion of the seed metal layer 140 , and the first circuit pattern 120 have a columnar shape and are formed to protrude from the inside of the insulating layer 110 to the outside. can be
- the seed metal layer 140 may include a second portion disposed between the first circuit pattern 120 and the first solder resist 160 .
- the width of the general seed metal layer has the same width as the width of the circuit pattern. This is because the seed metal layer is formed by electroplating the circuit pattern, and is removed when the electroplating process of the circuit pattern is completed. That is, the circuit pattern is disposed on the seed metal layer, and when the formation of the circuit pattern is completed, the seed metal layer in the region where the circuit pattern is not disposed is removed, so that the circuit pattern and the seed metal layer have the same width.
- the first connection part 170 is formed using the seed metal layer 140 .
- the first solder resist 160 and the seed metal layer in the region where the first connection part 170 is not formed are removed.
- the second portion of the seed metal layer 140 in the embodiment may have a width different from that of the second circuit pattern 125 . That is, the lower surface of the second portion of the seed metal layer 140 is in direct contact with the first circuit pattern 120 .
- the top surface of the second portion of the seed metal layer 140 is in direct contact with the first solder resist 160 .
- the second portion of the seed metal layer 140 may have a width greater than the width of the contacting first circuit pattern 120 .
- the second portion of the seed metal layer 140 may have the same width as the contacting first solder resist 160 , or may have a smaller width than this.
- the second portion of the seed metal layer 140 may be formed to be larger than the width of the contacting first circuit pattern 120 and smaller than the contacting width of the first solder resist 160 . .
- the first circuit pattern 120 and the first connection part 170 are formed using the seed metal layer 140 . Accordingly, in the embodiment, the formation of a separate seed layer for forming the first connection part 170 and the removal process thereof are unnecessary, and thus the manufacturing process can be simplified.
- the bonding strength between the first circuit pattern 120 and the first connection part 170 may be improved. That is, in the embodiment, after the seed metal layer 140 is formed, an electroplating process is performed to form the first circuit pattern 120 . Accordingly, the first connection part 170 is formed using the seed metal layer 140 as it is as a seed layer. In this case, in the comparative example, an additional seed metal layer is formed by performing a chemical copper plating process on the first circuit pattern. In this case, the bonding strength of the seed metal layer formed by the additional process is lower than the bonding strength between the first circuit pattern 120 and the seed metal layer 140 in the embodiment. In the embodiment, the first circuit pattern 120 having a thicker thickness than this is formed after the seed metal layer 140 is formed, whereas in the comparative example, after the circuit pattern is formed, the seed metal layer having a thinner thickness than this is formed. because it is formed.
- a first connection part 170 is formed on the upper surface of the first part of the seed metal layer 140 .
- a plurality of first connection parts 170 may be formed on the seed metal layer 140 to be spaced apart from each other at regular intervals.
- the first connection part 170 may be a copper pillar.
- the first connection unit 170 may be connected to an under bump metal (UBM) 210 of the first device 200 .
- UBM under bump metal
- the first connection part 170 may be formed on the seed metal layer 140 to have a first width and a first interval.
- the first width may be the same as the width and spacing of the first circuit pattern 120 .
- the first connection part 170 may have a first width of 10 ⁇ m or less and a first interval of 10 ⁇ m or less, and may be disposed on the top surface of the seed metal layer 140 .
- the second connection part 175 may be formed under the lower surface of the second circuit pattern 125 .
- the second connection part 175 may be disposed in an opening (not shown) of the second solder resist 165 formed on the lower surface of the insulating layer 110 .
- the second connection part 175 may be formed to have a structure protruding below the lower surface of the second solder resist 165 .
- a plurality of the second connection parts 175 may be formed to be spaced apart from each other at regular intervals.
- the second connection part 175 may be disposed to have a second width and a second interval.
- the second width may be greater than the first width of the first connector 170 .
- the second interval may be greater than the first interval of the first connection unit 170 .
- a first connection part 180 may be disposed on an upper surface of the first connection part 170 .
- a second connection part 185 may be disposed on a lower surface of the second circuit pattern 125 .
- the first connection part 180 and the second connection part 185 may have a circular or elliptical shape, but are not limited thereto.
- the first connecting portion 180 and the second connecting portion 185 are silver copper (Cu), tin (Sn), aluminum (Al), zinc (Zn), indium (In), lead (Pb), and antimony (Sb). ), bismuth (bi), silver (Ag), and may include at least one of nickel (Ni).
- the first connection part 180 and the second connection part 185 may be solder bumps.
- the first connecting portion 180 and the second connecting portion 185 may be solder balls, and thus may be melted at the temperature of the reflow process.
- a first device 200 may be attached on the first connection unit 180 .
- the second device 300 may be attached under the second connection part 185 .
- an under bump metal (UBM) 210 may be formed between the first connection part 180 and the contact surface of the first device 200 . That is, an under bump metal (UBM) 210 is formed on the lower surface of the first element 200 .
- the first device 200 performs a soldering process in a state in which the positions of the under bump metal (UBM) 210 are aligned on the first connection unit 180 , and is formed on the first connection unit 170 . can be attached.
- the first connection part is formed on the first circuit pattern of the circuit board, not on the UBM (Under Bump Metal) of the first device.
- the first connection part may be formed by electroplating the seed metal layer formed for the electroplating of the first circuit pattern as the seed layer.
- bonding strength between the seed metal layer, the first circuit pattern, and the first connection part may be improved.
- since the first connection part is formed on the first circuit pattern there is an effect that it is not necessary to manage the embedding depth of the first circuit pattern having an ETS (Embedded Trace Substrate) structure.
- ETS embedded Trace Substrate
- the embodiment since it is not necessary to manage the embedding depth of the first circuit pattern, it is possible to reduce the interval between the first connection parts or the interval between the first circuit patterns, and thus it is possible to cope with the fine pitch. In addition, in the embodiment, it can be used for a fine bump product according to a decrease in the size width or interval of the first connection part, and thus design freedom can be secured by securing space.
- the first connection part is disposed on the upper side of the insulating layer and the second connection part is disposed on the bottom side of the insulating layer, so that the upper and lower parts of the package substrate can be equally balanced, and thus the package substrate is bent characteristics can be improved.
- the device or the main board is attached by the first connection part and the second connection part, and thus, the product volume can be reduced because it is not necessary to secure the collapse height of the solder ball compared to the solder ball bonding method.
- the attachment of the device or the main board is performed using the first and second connectors having higher thermal conductivity than the solder balls. Accordingly, in the embodiment, it is possible to increase the heat transfer characteristics generated by the device or the main board, thereby improving the heat dissipation characteristics.
- FIG 3 is a view showing a package substrate of a second type according to the embodiment.
- the package substrate may further include a molding layer as compared with FIG. 2 .
- the package substrate 100B of the second type includes a first molding layer 190 and a second molding layer 195 .
- the first molding layer 190 may be formed on the upper surface of the insulating layer 110 and the upper surface of the first solder resist 160 .
- the first molding layer 190 may be disposed to cover the components disposed on the upper side of the insulating layer 110 . That is, the first molding layer 190 includes the seed metal layer 140 disposed on the upper surface of the insulating layer 110 , the first solder resist 160 , the first connection part 170 , the first connection part 180 , and the first It may be formed by embedding the device 200 and an under bump metal (UBM) 210 .
- UBM under bump metal
- the first molding layer 190 may be formed by filling the first solder resist 160 .
- the second molding layer 195 may be disposed to cover the components disposed below the insulating layer 110 . That is, the second molding layer 195 may be formed by filling the second connection part 175 , the second connection part 185 , and the second device 300 disposed under the lower surface of the insulating layer 110 . However, the second molding layer 195 may include an opening (not shown) exposing the lower surface of the second connection part 175 .
- FIG. 4 is a view showing a package substrate of a third type according to the embodiment.
- the package substrate may further include a lower substrate as compared with FIG. 3 .
- the package substrate 100C of the third type may include the third connection part 410 and the lower substrate 400 .
- the third connection part 410 may be a solder ball.
- the third connection part 410 may be formed under the lower surface of the second connection part 175 exposed through the opening of the second molding layer 195 .
- a lower substrate 400 may be attached under the third connection part 410 .
- the lower substrate 400 may be a main board, but is not limited thereto.
- the lower substrate 400 may be any one of several substrates constituting an active antenna system in the 5G package substrate, that is, an antenna substrate, an antenna feeding substrate, a transceiver substrate, and a baseband substrate.
- 5 to 15 are views showing the manufacturing method of the manufacturing substrate shown in FIG. 4 in order of process.
- the embodiment first prepares a carrier board (CB), which is a basic material, for manufacturing a circuit board.
- the carrier board CB may include a carrier insulating layer CB1 and a carrier metal layer CB2 disposed on one surface of the carrier insulating layer CB1.
- the carrier metal layer CB2 is disposed only on one surface of the carrier insulating layer CB1 in the drawing, the present invention is not limited thereto. That is, the carrier metal layer may be formed on the upper and lower surfaces of the carrier insulating layer CB1, respectively, and accordingly, in the embodiment, a plurality of circuit boards may be simultaneously manufactured on both sides of the carrier insulating layer CB1.
- the seed metal layer 140 is formed under the carrier metal layer CB2 .
- the seed metal layer 140 may be formed by a chemical copper plating process, but is not limited thereto.
- a first mask M1 is formed on the seed metal layer 140 . And, in the embodiment, by exposing and developing the first mask M1, an open portion (not shown) is formed in the first mask M1.
- the open part may be formed by exposing a lower surface of the seed metal layer 140 at a position where the first circuit pattern 120 is to be formed.
- the first mask M1 When the first mask M1 is formed, in an embodiment, electroplating the seed metal layer 140 as a seed layer to form a first circuit pattern 120 filling the open portion of the first mask M1 . do.
- the first mask M1 is removed, and accordingly, an insulating layer 110 covering the first circuit pattern 120 is formed under the seed metal layer 140 . do.
- the via 130 is formed in the insulating layer 110 .
- a second circuit pattern 125 connected to the via 130 is formed on the lower surface of the insulating layer 110 .
- the second circuit pattern 125 may be disposed to protrude under the lower surface of the insulating layer 110 . That is, the upper surface of the second circuit pattern 125 may directly contact the lower surface of the insulating layer 110 .
- the embodiment is not limited thereto, and a seed metal layer (not shown) of the second circuit pattern 125 may be disposed between the upper surface of the second circuit pattern 125 and the lower surface of the insulating layer 110 . There will be.
- the package substrate in the embodiment is manufactured by the ETS method. Accordingly, the first circuit pattern 120 may have a structure buried in the insulating layer 110 , and the second circuit pattern 125 may be formed by the insulating layer. It may have a structure protruding above the surface of 110 .
- the via 130 may be disposed in the insulating layer 110 , and an upper surface thereof may be connected to a lower surface of the first circuit pattern 120 , and a lower surface thereof may be connected to an upper surface of the second circuit pattern 125 .
- the via 130 may be formed by filling an inside of a via hole (not shown) formed in the insulating layer 110 with a metal material.
- a second solder resist 165 is formed under the lower surface of the insulating layer 110 .
- the second solder resist 165 may have an opening for opening a portion to be exposed among the lower surface of the second circuit pattern 125 .
- a second mask M2 is formed under the lower surface of the second solder resist 165 .
- the second mask M2 may include an open part (not shown) exposing the lower surface of the second circuit pattern 125 at the position where the second connection part 175 is to be formed through an exposure and development process. .
- a process of removing the second mask M2 and a process of removing the carrier board CB may be performed. After the removal process of the carrier board CB is performed, the top surface of the seed metal layer 140 used as the seed layer of the first circuit pattern 120 may be exposed.
- the first solder resist 160 may include an open portion (not shown) for opening a region to be exposed among the top surface of the seed metal layer 140 .
- a process of forming a third mask M3 on the first solder resist 160 and the seed metal layer 140 may be performed.
- the third mask M3 may include an open part (not shown) exposing the top surface of the seed metal layer 140 at the position where the first connection part 170 is to be formed through an exposure and development process. .
- the first connection portion 170 may be formed by performing electroplating on the upper surface of the seed metal layer 140 exposed through the open portion.
- the first connection part 170 may be formed by electroplating the seed metal layer 140 as a seed layer.
- the seed metal layer 140 is also used as a seed layer of the first circuit pattern 120 as described above.
- the seed metal layer 140 is a seed layer, and the first circuit pattern 120 and The first connecting portion 170 may be formed.
- the third mask M3 is removed, and accordingly, the seed metal layer 140 in the region where the first solder resist 160 and the first connection part 170 are not formed. ) can be removed.
- a process of attaching the first device 200 may be performed by disposing the first connection unit 180 on the first connection unit 170 .
- a process of attaching the second device 300 is performed by disposing the second connection part 185 under the lower surface of the second circuit pattern 125 exposed through the opening of the second solder resist 165 .
- a process of forming the first molding layer 190 and the second molding layer 195 may be performed.
- the first molding layer 190 may be formed on the upper surface of the insulating layer 110 and the upper surface of the first solder resist 160 .
- the first molding layer 190 may be disposed to cover the components disposed on the upper side of the insulating layer 110 . That is, the first molding layer 190 includes the seed metal layer 140 disposed on the upper surface of the insulating layer 110 , the first solder resist 160 , the first connection part 170 , the first connection part 180 , and the first It may be formed by embedding the device 200 and an under bump metal (UBM) 210 . As described above, the first molding layer 190 may be formed by filling the first solder resist 160 .
- UBM under bump metal
- the second molding layer 195 may be disposed to cover the components disposed below the insulating layer 110 . That is, the second molding layer 195 may be formed by filling the second connection part 175 , the second connection part 185 , and the second device 300 disposed under the lower surface of the insulating layer 110 . However, the second molding layer 195 may include an opening (not shown) exposing the lower surface of the second connection part 175 .
- the third connection part 410 may be formed under the lower surface of the second connection part 175 , and the process of attaching the lower substrate 400 may be performed using the third connection part 410 .
- 16 is a diagram illustrating a circuit board according to a second embodiment.
- each circuit pattern disposed on the outermost side may have a structure protruding from the surface of the insulating layer.
- the circuit board includes a first insulating layer 1101 , a second insulating layer 1102 , a third insulating layer 1103 , a first circuit pattern 1111 , and a second circuit pattern ( 1112 , third circuit pattern 1113 , fourth circuit pattern 1114 , first via 1121 , second via 1122 , third via 1123 , first device C1 , second device (C2), the third device (C3), the first post bump 1150, the second post bump 1160, the first connection part 1141, the second connection part 1142, the first molding layer 1131 and the second Two molding layers 1133 are included.
- the first post bump 1150 and the second post bump 1160 may correspond to the second connection part 175 of the first embodiment.
- the second connection part disposed on the lowermost side of the circuit board may include a plurality of post bumps having different widths.
- the first insulating layer 1101 may be a core board.
- the second insulating layer 1102 and the third insulating layer 1103 may be respectively disposed above and below the first insulating layer 1101 .
- the number of the insulating layers is illustrated as having a three-layer structure, but the present invention is not limited thereto.
- the number of insulating layers in the second embodiment may consist of one or two layers, or alternatively, the number of layers of four or more layers may be provided.
- a circuit pattern may be disposed on the surfaces of the first insulating layer 1101 , the second insulating layer 1102 , and the third insulating layer 1103 .
- the circuit pattern may include a first circuit pattern 1111 , a second circuit pattern 1112 , a third circuit pattern 1113 , and a fourth circuit pattern 1114 .
- the first circuit pattern 1111 may be disposed on the upper surface of the first insulating layer 1101 .
- the second circuit pattern 1112 may be disposed on the lower surface of the first insulating layer 1101 .
- the third circuit pattern 1113 may be disposed on the upper surface of the second insulating layer 1102 .
- the fourth circuit pattern 1114 may be disposed on the lower surface of the third insulating layer 1103 .
- the third circuit pattern 1113 may refer to a circuit pattern disposed on the upper surface of the uppermost insulating layer in the stacked structure of the insulating layer of the circuit board.
- the third circuit pattern 1113 may be referred to as a first outer circuit pattern.
- the fourth circuit pattern 1114 may refer to a circuit pattern disposed on the lower surface of the lowermost insulating layer in the stacked structure of the insulating layer of the circuit board.
- the fourth circuit pattern 1114 may be referred to as a second outer circuit pattern disposed on the lowermost insulating layer.
- the third circuit pattern 1113 corresponding to the first outer circuit pattern may include a first pad 1113a on which the second device C2 is mounted.
- the fourth circuit pattern 1114 may include a second pad (not shown) on which the third device C3 is mounted.
- the fourth circuit pattern 1114 may include a 4-1 pattern disposed to overlap with the first terminal T1 of the first element C1 in a vertical direction and a 4-2 pattern other than this.
- a first post bump 1150 to be described later is disposed under a lower surface of a 4-2 pattern among the fourth circuit patterns 1114
- the second post bump 1160 is the fourth circuit pattern 1114 .
- the first pad 1113a may correspond to the first circuit pattern 120 on which the device is mounted on the circuit board of the first embodiment.
- the first connection unit 170 disposed on the upper surface of the first circuit pattern 120 in the first embodiment may be disposed on the upper surface of the first pad 1113a in the second embodiment. will be.
- a via is disposed in each of the insulating layers. Specifically, a via may be formed in the first insulating layer 1101 , the second insulating layer 1102 , and the third insulating layer 1103 passing therethrough.
- a first via 1121 is disposed in the first insulating layer 1101 .
- the first via 1121 includes a first circuit pattern 1111 disposed on an upper surface of the first insulating layer 1101 and a second circuit pattern 1112 disposed on a lower surface of the first insulating layer 1101 . electrically connect to
- a second via 1122 is disposed in the second insulating layer 1102 .
- the second via 1122 includes a third circuit pattern 1113 disposed on the upper surface of the second insulating layer 1102 and a first circuit pattern 1111 disposed on the upper surface of the first insulating layer 1101 . electrically connect to
- a third via 1123 is disposed in the third insulating layer 1103 .
- the third via 1123 includes a second circuit pattern 1112 disposed on a lower surface of the first insulating layer 1101 and a fourth circuit pattern 1114 disposed on a lower surface of the third insulating layer 1103 . electrically connect to
- the first device C1 is buried in the first insulating layer 1101 .
- the first device C1 may be buried in the first insulating layer 1101 , and at least a portion thereof may be exposed under the lower surface of the first insulating layer 1101 .
- the first device C1 includes a first terminal T1.
- the first terminal T1 of the first device C1 may protrude below the lower surface of the first insulating layer 1101 . Accordingly, at least a portion of the first terminal T1 of the first device C1 may be covered by the third insulating layer 1103 .
- a top surface of the first terminal T1 of the first device C1 may be disposed on the same plane as a top surface of the second circuit pattern 1112 .
- the first terminal T1 of the first device C1 may be directly connected to the third via 1123 disposed in the third insulating layer 1103 .
- the third via 1123 is directly connected to the first terminal T1 of the first device C1 without a separate connection pad connected to the first terminal T1 of the first device C1. Accordingly, in the embodiment, the wiring length of the electrical signal transmitted through the first element C1 may be minimized, and thus, the transmission speed and noise characteristics may be improved.
- the first device C1 may be an electronic component such as a chip, and may be divided into an active device and a passive device.
- an active element is an element that actively uses a non-linear part, and a passive element means an element that does not use a non-linear characteristic even though both linear and non-linear characteristics exist.
- the active element may include a transistor, an IC semiconductor chip, and the like, and the passive element may include a capacitor, a resistor, an inductor, and the like.
- the passive element may increase a signal processing speed of a semiconductor chip, which is an active element, or perform a filtering function.
- a second device C2 is mounted on the second insulating layer 1102 .
- the second device C2 is mounted on the first pad 1113a among the third circuit patterns 1113 disposed on the upper surface of the second insulating layer 1102 .
- the second insulating layer 1102 may be referred to as a first outer insulating layer disposed on the first outermost or uppermost side of the plurality of insulating layers.
- the second device C2 may be disposed on the first outer insulating layer.
- the first connection part 1141 is disposed on the first pad 1113a of the third circuit pattern 1113 .
- the second device C2 is electrically connected to the first pad 1113a through the first connection part 1141 .
- the first connection part 1141 may be a solder ball.
- a material of a heterogeneous component may be included in the solder.
- the solder may be formed of at least one of SnCu, SnPb, and SnAgCu.
- the heterogeneous material may include any one of Al, Sb, Bi, Cu, Ni, In, Pb, Ag, Sn, Zn, Ga, Cd, and Fe.
- a first molding layer 1131 is disposed on the second insulating layer 1102 .
- the first molding layer 1131 is disposed to cover an upper surface of the second insulating layer 1102 .
- the first molding layer 1131 is disposed to cover the entire area of the upper surface of the second insulating layer 1102 .
- a portion of the upper surface of the second insulating layer 1102 is in contact with the third circuit pattern 1113 .
- the remaining portion of the upper surface of the second insulating layer 1102 is in contact with the first molding layer 1131 .
- the first molding layer 1131 may be formed of an epoxy molding compound (EMC), but is not limited thereto.
- EMC epoxy molding compound
- the first molding layer 1131 includes an open region 1132 .
- the first molding layer 1131 includes an open region 1132 that opens a region in which the second device C2 is to be disposed among the upper regions of the second insulating layer 1102 .
- the second device C2 may be mounted on the first pad 1113a of the third circuit pattern 1113 in the open region 1132 of the first molding layer 1131 .
- a third element C3 is mounted under the third insulating layer 1103 .
- the third device C3 is mounted on the second pad (not shown) of the fourth circuit patterns 1114 disposed on the lower surface of the third insulating layer 1103 .
- the second connection part 1142 is disposed under the second pad of the fourth circuit pattern 1114 .
- the third element C3 is electrically connected to the second pad through the second connection part 1142 .
- the second connection part 1142 may be a solder ball.
- the second connection part 1142 may include a material of a different component in solder.
- a second molding layer 1133 is disposed under the third insulating layer 1103 .
- the second molding layer 1133 is disposed to cover a lower surface of the third insulating layer 1103 .
- the second molding layer 1133 may be formed of an epoxy molding compound (EMC), but is not limited thereto.
- the second molding layer 1133 may be formed to expose a lower surface of the third device C3 . That is, the second molding layer 1133 may be disposed to cover the side surface and the top surface of the third device C3 . At this time, the terminal (not shown) of the third element C3 is disposed on the upper surface, and accordingly, the second connection part 1142 and the terminal of the third element C3 are connected to the second molding layer 1133 . can be covered by
- the second molding layer 1133 may be disposed under the third insulating layer 1103 to have a predetermined thickness.
- the lower surface of the second molding layer 1133 may be positioned on the same plane as the lower surface of the third device C3 . Accordingly, the lower surface of the third element C3 may be exposed to the outside. Accordingly, heat generated in the third element C3 may be radiated to the outside through the exposed portion.
- a lower surface of the second molding layer 1133 may be positioned lower than lower surfaces of the first post bump 1150 and the second post bump 1160 .
- the second molding layer 1133 is formed to expose lower surfaces of the first post bumps 1150 and the second post bumps 1160 . Accordingly, a seating portion that is an open area of the second molding layer 1133 may be formed on lower surfaces of the first post bump 1150 and the second post bump 1160 , so that it is later connected to the main boda. Reliability can be improved by being able to place the solder balls for precise positioning.
- a first post bump 1150 and a second post bump 1160 are disposed under the lower surface of the fourth circuit pattern 1114 .
- the first post bump 1150 and the second post bump 1160 may be a connection part for connection with an external main board.
- the first post bump 1150 and the second post bump 1160 may be formed using a plating seed layer (not shown) used to form the fourth circuit pattern 1114 . Accordingly, in an embodiment, a separate seed layer for forming the first post bump 1150 and the second post bump 1160 may be omitted. Accordingly, the first post bump 1150 and the second post bump 1160 may be disposed in direct contact with the fourth circuit pattern 1114 disposed on the lower surface of the third insulating layer 1103 .
- a seed layer formed on the fourth circuit pattern 1114 is formed without separately forming a seed layer for electroplating between the first and second post bumps 150 and 160 and the fourth circuit pattern 1114 .
- a separate seed layer for the shape of the post bump may be omitted, and thus the manufacturing process may be simplified.
- the problem of crack generation between the separate seed layer and the post bumps can be solved, thereby improving the reliability and durability of the product can do it
- the second connection part includes only one post bump.
- the second connection part of the circuit board according to the second embodiment may include the first post bump 1150 and the second post bump 1160 having different widths.
- the first post bump 1150 may have a first width W1 .
- the first width W1 of the first post bump 1150 may satisfy a range of 150 ⁇ m to 300 ⁇ m.
- the first width W1 of the first post bump 1150 may satisfy a range of 170 ⁇ m to 280 ⁇ m.
- the first width W1 of the first post bump 1150 may satisfy a range of 200 ⁇ m to 250 ⁇ m. If the width of the first post bump 1150 is less than 150 ⁇ m, it may not be possible to stably support the main board 1200 .
- the width of the first post bump 1150 is greater than 300 ⁇ m, the volume of the circuit board in the longitudinal direction may increase.
- the second post bump 1160 may have a second width W2 .
- the second width W2 of the second post bump 1160 may satisfy a range of 50 ⁇ m to 120 ⁇ m.
- the second width W2 of the second post bump 1160 may satisfy a range of 70 ⁇ m to 110 ⁇ m.
- the second width W2 of the second post bump 1160 may satisfy a range of 80 ⁇ m to 100 ⁇ m.
- the width of the second post bump 1160 is less than 50 ⁇ m, it may not be possible to stably support the main board by the adjacent second post bump.
- the width of the second post bump 1160 is greater than 120 ⁇ m, the volume of the circuit board in the longitudinal direction may increase.
- the first post bump 1150 and the second post bump 1160 having different widths are formed for the second connection part connected to the main board. That is, in the comparative example, only the first post bump was included in the second connection part, and thus the thickness of the circuit board in the longitudinal direction was increased. On the other hand, in the embodiment, not only the first post bump but also the second post bump is formed together with the first post bump, so that different main boards can be supported depending on the location, and accordingly the length of the circuit board to reduce the volume in the direction.
- the second post bump 1160 may be a bump connected to the first device C1 buried in the first insulating layer 1101 .
- the second post bump 1160 may be a bump directly connected to the first terminal T1 of the first device C1 through the fourth circuit pattern 1114 and the third via 1123 .
- the second post bump 1160 may be a bump disposed to overlap the first element C1 in a vertical direction.
- the second post bump 1160 may be disposed to overlap the first terminal T1 of the first device C1 in the vertical direction.
- the first device C1 and the main board may be connected using the second post bump 1160 .
- the first device and the main board were connected using a solder ball.
- the solder balls due to the characteristics of the solder balls, there is a limit to corresponding fine pitches, and accordingly, a space for forming the solder balls has to be secured by using additional connecting wires.
- the first device and the main board are connected using the second post bump 1160 .
- a plurality of second post bumps 1160 corresponding to the pitch of the first terminal T1 of the first device C1 are used, and thus the fine pitch may be corresponded to.
- the first device C1 and the main board are connected through the second post bump 1160 , and thus, heat dissipation characteristics can be improved compared to the comparative example.
- the signal transmission distance between the first device C1 and the main board can be reduced, resulting in noise It is possible to improve the transmission speed while improving the characteristics.
- FIG. 17 is a view showing an open area of the first molding layer of FIG. 2 according to the first embodiment
- FIG. 18 is a view showing an open area of the first molding layer of FIG. 2 according to the second embodiment.
- the structure of the first molding layer described below may be equally applicable to the first molding layer 190 illustrated in FIG. 3 .
- the open region 1132 of the first molding layer 1131 may open a region in which the second device C2 is to be disposed among the upper regions of the second insulating layer 1102 .
- the open region 1132 of the first molding layer 1131 may be formed while covering the upper surface of the second insulating layer 1102 and exposing the first pad 1113a.
- the open region 1132 covers the upper surface of the second insulating layer 1102 and selectively exposes the first pad 1113a, thereby improving reliability.
- the first molding layer 1131 includes a first portion forming the open region 1132 and a second portion other than the first portion.
- the first portion may be formed by exposing the first pad 1113a on which the second device C2 is mounted.
- An upper surface of the first part may have a step difference.
- the first portion of the first molding layer 1131 may form steps having different heights according to positions.
- the upper surface of the first portion of the first molding layer 1131 may have a predetermined surface roughness.
- the surface roughness of the upper surface of the first portion of the first molding layer 1131 is not processed to have the corresponding roughness through an additional process, but is formed in the state in which the jig is disposed.
- the upper surface of the first part can have a certain surface roughness.
- the first portion of the first molding layer 1131 may include a first-first portion corresponding to an edge area and a first-second portion corresponding to an inner area.
- the upper surface S1 of the 1-1 portion of the first molding layer 1131 may have a different height from the upper surface S2 of the 1-2 portion of the first molding layer 1131 .
- the top surface of the first part of the first molding layer 1131 may change from the 1-1 part to the 1-2 part.
- the height of the upper surface of the first portion of the first molding layer 1131 may decrease as it moves away from the inner wall of the open area 1132 .
- the depth of the open region 1132 of the first molding layer 1131 may increase from the outside to the inside.
- the inner wall of the open area 1132 may be perpendicular to the upper surface of the second insulating layer 1102 .
- the upper width and lower width of the open region 1132 may be equal to each other.
- the first-first portion of the first molding layer 1131 may have a second height H2.
- a portion 1-2 of the first molding layer 1131 may have a third height H3 smaller than the second height H2 .
- the first pad 1113a may be formed to have a first height H1 on the upper surface of the second insulating layer 1102 .
- the 1-1 portion of the first molding layer 1131 needs to expose the top surface of the first pad 1113a, and thus is higher than the first height H1 of the first pad 1113a. It may have a small second height H2.
- a portion 1-2 of the first molding layer 1131 may have a third height H3 smaller than the second height H2 .
- the first-second portion having the third height H3 may be disposed closer to the first pad 1113a than the first-first portion having the second height H2 .
- the upper surfaces S1 and S2 of each of the 1-1 and 1-2 parts of the first molding layer 1131 may have the same height in the entire area.
- the upper surface S1 of the first-first portion of the first molding layer 1131 may be flat.
- the upper surface S1 of the first-first portion of the first device C1 may have the same height in the entire area.
- the upper surface S2 of the first-second portion of the first molding layer 1131 may be flat.
- the top surface S2 of the first - 2 portions of the first device C1 may have the same height as each other in the entire area.
- the upper surfaces S1 and S2 of each of the 1-1 and 1-2 parts of the first molding layer 1131 may change in height from the outside to the inside.
- the second height H2 may have a level of 95% or less of the first height H1 .
- the first upper surface S1 of the first portion and the second upper surface S2 of the first second portion of the first molding layer 1131 may have different heights for each location.
- the second height H2 may mean an average height of the first upper surface S1 .
- the second height H2 may mean the largest height value among the heights of the first upper surface S1 for each position.
- the upper surface S1 of the 1-1 part may be lowered from the outside to the inside.
- the upper surface S1 of the first-first portion may have the greatest height at a portion closest to the inner wall.
- the upper surface S1 of the 1-1 part may have the smallest height in a portion adjacent to the upper surface S2 of the 1-2 th part.
- the upper surface S2 of the first-second portion may have a height smaller than the upper surface S1 of the first-first portion and be positioned between the first pads 1113a.
- the upper surface S2 of the first-second portion may have a smaller height than the upper surface S1 of the first-first portion. Furthermore, the upper surface S2 of the first-second portion may have different heights according to positions. That is, the third height H3 of the upper surface S2 of the first-second portion may have different values according to positions.
- the height of the upper surface S2 of the part 1-2 may be lowered from the outside to the inside.
- the upper surface S2 of the first-second portion may have the greatest height in a portion adjacent to the inner side of the first pad 1113a (or a portion adjacent to the upper surface of the first-first portion). have.
- the upper surface S2 of the first-second portion may have the smallest height in the central portion. That is, the cross-section of the upper surface S2 of the first-second portion may have a V-shape in which the height gradually decreases from the outside to the inside.
- a cross-sectional view of the upper surface S1 of the 1-1 part may have a V-shape in which the height decreases from the outside to the inside.
- the surface of the first pad 1113a is not exposed, so that the connection defect of the second device C2 can be solved, and accordingly Reliability of an electrical connection between the first pad 1113a and the second device C2 may be improved.
- 19 to 29 are views showing the manufacturing method of the circuit board shown in FIG. 16 in order of process.
- a process of manufacturing the inner layer substrate may be preferentially performed.
- the first insulating layer 1101 is prepared. And, in the embodiment, the process of forming the first circuit pattern 1111 on the upper surface of the first insulating layer 1101 and the second circuit pattern 1112 on the lower surface of the first insulating layer 1101 is performed. can proceed. Also, in an embodiment, a process of forming a first via 1121 connecting the first circuit pattern 1111 and the second circuit pattern 1112 in the first insulating layer 1101 may be performed.
- a process of forming the carrier board CB under the first insulating layer 1101 may be performed. And, in the embodiment, a process of forming the cavity 1101a in the first insulating layer 1101 may be performed.
- a process of burying the first device C1 in the cavity 1101a formed in the first insulating layer 1101 may be performed.
- the first device C1 may be buried in the first insulating layer 1101 , and at least a portion thereof may be exposed under the lower surface of the first insulating layer 1101 .
- the first device C1 includes a first terminal T1.
- the first terminal T1 of the first device C1 may protrude below the lower surface of the first insulating layer 1101 .
- the first terminal T1 of the first device C1 may be disposed in the carrier board CB.
- a top surface of the first terminal T1 of the first device C1 may be disposed on the same plane as a top surface of the second circuit pattern 1112 .
- a process of forming the second insulating layer 1102 on the upper surface of the first insulating layer 1101 may be performed.
- An upper surface of the first device C1 may be covered by the formed second insulating layer 1102 .
- a process of removing the carrier board CB disposed on the lower surface of the first insulating layer 1101 may be performed.
- the carrier board ( CB) may be removed.
- a process of forming a third circuit pattern 1113 on the upper surface of the second insulating layer 1102 may be performed. Also, in an embodiment, a process of forming a second via 1122 connecting the first circuit pattern 1111 and the third circuit pattern 1113 in the second insulating layer 1102 may be performed. In this case, the third circuit pattern 1113 formed on the upper surface of the second insulating layer 1102 may include a first pad 1113a for mounting the second device C2 .
- a process of forming the fourth circuit pattern 1114 on the lower surface of the third insulating layer 1103 may be performed.
- a process of forming a third via 1123 connecting the second circuit pattern 1112 and the fourth circuit pattern 1114 in the third insulating layer 1103 may be performed.
- the third via 1123 may include a via directly connected to the first terminal T1 of the first device C1 buried in the first insulating layer 1101 .
- the fourth circuit pattern 1114 may include a second pad (not shown) for mounting the third device C3 .
- a process of arranging a mold chase (MC) on the second insulating layer 1102 may be performed.
- the mold chase (MC) is disposed on the first pad 1113a connected to the second device C2 among the third circuit patterns 1113 disposed on the upper surface of the second insulating layer 1102 . It may include a protrusion (not shown). That is, the protrusion of the mold chase (MC) may be disposed on the first pad 1113a of the third circuit pattern 1113 .
- the remaining regions except for the protrusions of the mold chase (MC) among the upper regions of the second insulating layer 1102 are filled, and the first molding layer 1131 is formed.
- the forming process may proceed.
- the first molding layer 1131 may have an open area 1132 corresponding to a protrusion of the mold chase (MC).
- the first molding layer 1131 in the open region 1132 may be formed to fill a part of a space between the upper surfaces of the second insulating layer 1102 of the protrusion.
- the first connection part 1141 is disposed on the first pad 1113a exposed through the open area 1132 of the first molding layer 1131 .
- a process of mounting the second device C2 on the first pad 1113a using the first connection part 1141 may be performed.
- the second connection part 1142 is disposed under the second pad among the fourth circuit patterns 1114 disposed on the lower surface of the third insulating layer 1103 , and the second connection part 1142 is used. Thus, a process of mounting the third device C3 may be performed.
- the open region 1132 of the first molding layer 1131 may open a region in which the second device C2 is to be disposed among the upper regions of the second insulating layer 1102 .
- the open region 1132 of the first molding layer 1131 may be formed while covering the upper surface of the second insulating layer 1102 and exposing the first pad 1113a.
- the open region 1132 covers the upper surface of the second insulating layer 1102 and selectively exposes the first pad 1113a, thereby improving reliability.
- a first post bump 1150 and a second post bump 1160 constituting a second connection part are formed under the lower surface of the fourth circuit pattern 1114 .
- process can proceed.
- the lower surface of the first post bump 1150 and the lower surface of the second post bump 1160 are exposed while covering the third device C3.
- a process of forming the second molding layer 1133 may be performed.
- FIG. 30 is a diagram illustrating a package substrate according to an embodiment.
- the third connection part 1220 may be disposed under the first post bump 1150 and the second post bump 1160 of the circuit board shown in FIG. 16 . .
- the main board 200 may be attached below the circuit board through the third connection part 1220 .
- the upper surface of the main mode 200 may include a pad directly connected to the first post bump 1150 and a pad directly connected to the second post bump 1160 , respectively.
- the second post bump 1160 is disposed to overlap the first device C1 buried in the first insulating layer 1101 of the circuit board in the vertical direction. That is, the second post bump 1160 may be directly connected to the first device C1 through the third via 1123 and the fourth circuit pattern 1114 .
- the direct connection refers to connecting the third via 1123 and the fourth circuit pattern 1114 in a vertical direction instead of providing a signal line connected to the terminal T1 of the first device C1 in a horizontal direction. It may mean being directly connected to the second post bump 1160 through the
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- Engineering & Computer Science (AREA)
- Microelectronics & Electronic Packaging (AREA)
- Manufacturing & Machinery (AREA)
- Production Of Multi-Layered Print Wiring Board (AREA)
- Structures For Mounting Electric Components On Printed Circuit Boards (AREA)
- Structure Of Printed Boards (AREA)
- Electric Connection Of Electric Components To Printed Circuits (AREA)
Abstract
Description
Claims (10)
- 절연층;상기 절연층의 상면에 배치되고, 제1 외측 회로 패턴;상기 절연층의 하면에 배치되는 제2 외측 회로 패턴;상기 제1 외측 회로 패턴의 제1-1 회로 패턴의 상면에 배치되는 제1 연결부;상기 제1 연결부 상에 배치되는 제1 접속부;상기 제1 접속부를 통해 상기 제1 연결부 상에 배치되는 제1 소자;상기 제2 외측 회로 패턴의 제2-1 회로 패턴의 하면에 배치되는 제2 접속부;상기 제2 접속부를 통해 상기 제2-1 회로 패턴에 부착되는 제2 소자; 및상기 제2 외측 회로 패턴의 제2-2 회로 패턴의 하면에 배치되는 제2 연결부를 포함하고,상기 제1 연결부는 제1 폭 및 제1 간격을 가지고 배치되고,상기 제2 연결부는 상기 제1 폭보다 큰 제2 폭 및 상기 제1 간격보다 큰 제2 간격을 가지고 배치되는,패키지 기판.
- 제1 항에 있어서,상기 절연층의 상면에 배치되고 상기 제1 연결부를 노출하는 제1 개구부를 포함하는 제1 솔더 레지스트; 및상기 절연층의 하면에 배치되고, 상기 제2 접속부 및 상기 제2 연결부를 노출하는 제2 솔더 레지스트를 포함하고,상기 제1 회로 패턴은 상기 제1 솔더 레지스트에 의해 덮이는 제1-2 회로 패턴을 포함하는,패키지 기판.
- 제2항에 있어서,상기 제1-1 회로 패턴과 상기 제1 연결부 사이에 배치되는 시드 금속층을 포함하고,상기 시드 금속층은,상기 제1-1 회로 패턴과 상기 제1 연결부 사이에 배치되는 제1 부분과,상기 제1-2 회로 패턴과 상기 제1 솔더 레지스트 사이에 배치되는 제2 부분을 포함하는,패키지 기판.
- 제3항에 있어서,상기 시드 금속층은,상기 제1-1 회로 패턴, 상기 제1-2 회로 패턴 및 상기 제1 연결부의 시드층인,패키지 기판.
- 제1항에 있어서,상기 절연층 위에 배치되고, 상기 제1 소자를 몰딩하는 제1 몰딩층; 및상기 절연층 아래에 배치되고, 상기 제2 소자를 몰딩하며, 상기 제2 연결부의 하면을 노출하는 개구부를 포함하는 제2 몰딩층을 포함하는,패키지 기판.
- 제1항에 있어서,상기 절연층 내에 매립된 제3 소자를 포함하고,상기 제2-2 회로 패턴은,상기 제3 소자와 두께 방향으로 오버랩되는 제1 패턴부와,상기 제1 패턴부 이외의 제2 패턴부를 포함하고,상기 제2 연결부는,상기 제1 패턴부 아래에 배치되는 제1 포스트 범프; 및상기 제2 패턴부 아래에 배치되고, 상기 제1 포스트 범프와 다른 폭을 가지는 제2 포스트 범프를 포함하는,패키지 기판.
- 제1항에 있어서,상기 제1 외측 회로 패턴의 상면은,상기 절연층의 상면과 동일 평면 상에 위치하거나, 상기 절연층의 상면보다 낮게 위치하며,상기 제1 외측 회로 패턴의 측면은,상기 절연층으로 덮이는,패키지 기판.
- 제5항에 있어서,상기 제1 몰딩층은 오픈 영역을 포함하고,상기 오픈 영역은 상기 제1 소자를 노출하는,패키지 기판.
- 제8항에 있어서,상기 제1 외측 회로 패턴은 상기 절연층의 상면 위로 돌출되어, 상기 제1 몰딩층의 상기 오픈 영역을 통해 노출되고,상기 제1 몰딩층의 상기 제1 오픈 영역의 바닥면은,상기 제1 외측 회로 패턴의 하면보다 높게 위치하는,패키지 기판.
- 제9항에 있어서,상기 제1 몰딩층의 상기 제1 오픈 영역은,상기 제1 외측 회로 패턴과 인접한 제1 부분과,상기 제1 부분 이외의 제2 부분을 포함하고,상기 제1 부분의 높이는, 상기 제2 부분의 높이와 다른,패키지 기판.
Priority Applications (5)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US17/927,797 US12501548B2 (en) | 2020-05-26 | 2021-05-26 | Package substrate |
| CN202180060159.0A CN116134974A (zh) | 2020-05-26 | 2021-05-26 | 封装基板 |
| EP21812665.4A EP4161222A4 (en) | 2020-05-26 | 2021-05-26 | PACKAGING SUBSTRATE |
| JP2022573339A JP7766051B2 (ja) | 2020-05-26 | 2021-05-26 | パッケージ基板 |
| JP2025148501A JP2025172943A (ja) | 2020-05-26 | 2025-09-08 | パッケージ基板 |
Applications Claiming Priority (4)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| KR1020200063010A KR102906552B1 (ko) | 2020-05-26 | 2020-05-26 | 패키지기판 및 이의 제조 방법 |
| KR10-2020-0063010 | 2020-05-26 | ||
| KR1020200070534A KR20210153458A (ko) | 2020-06-10 | 2020-06-10 | 인쇄회로기판 및 이를 포함하는 패키지 기판 |
| KR10-2020-0070534 | 2020-06-10 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| WO2021242012A1 true WO2021242012A1 (ko) | 2021-12-02 |
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| PCT/KR2021/006562 Ceased WO2021242012A1 (ko) | 2020-05-26 | 2021-05-26 | 패키지기판 |
Country Status (5)
| Country | Link |
|---|---|
| US (1) | US12501548B2 (ko) |
| EP (1) | EP4161222A4 (ko) |
| JP (2) | JP7766051B2 (ko) |
| CN (1) | CN116134974A (ko) |
| WO (1) | WO2021242012A1 (ko) |
Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US10084503B2 (en) * | 2014-10-15 | 2018-09-25 | Skyworks Solutions, Inc. | Surface-mount technology devices and related methods |
| US12100645B2 (en) | 2021-09-23 | 2024-09-24 | Qualcomm Incorporated | Integrated circuit (IC) package employing added metal for embedded metal traces in ETS-based substrate for reduced signal path impedance, and related fabrication methods |
| US12362269B2 (en) * | 2021-10-18 | 2025-07-15 | Qualcomm Incorporated | Integrated circuit (IC) packages employing supplemental metal layer coupled to embedded metal traces in a die-side embedded trace substrate (ETS) layer, and related fabrication methods |
| KR20230055561A (ko) * | 2021-10-19 | 2023-04-26 | 삼성전기주식회사 | 인쇄회로기판 및 이를 포함하는 전자부품 패키지 |
| US12582014B2 (en) * | 2022-08-23 | 2026-03-17 | Micron Technology, Inc. | Semiconductor device assembly substrates with tunneled interconnects, and methods for making the same |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20080179740A1 (en) * | 2007-01-25 | 2008-07-31 | Advanced Semiconductor Engineering, Inc. | Package substrate, method of fabricating the same and chip package |
| US20150235915A1 (en) * | 2014-02-14 | 2015-08-20 | Taiwan Semiconductor Manufacturing Company, Ltd. | Substrate Design for Semiconductor Packages and Method of Forming Same |
| KR20160084666A (ko) * | 2015-01-06 | 2016-07-14 | 삼성전기주식회사 | 인쇄회로기판, 반도체 패키지 및 이들의 제조방법 |
| US20180254238A1 (en) * | 2017-03-06 | 2018-09-06 | Advanced Semiconductor Engineering, Inc. | Semiconductor device package and a method of manufacturing the same |
| KR20200015974A (ko) * | 2018-08-06 | 2020-02-14 | 엘지이노텍 주식회사 | 인쇄회로기판 및 이를 포함하는 패키지 기판 |
Family Cites Families (14)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US8014154B2 (en) * | 2006-09-27 | 2011-09-06 | Samsung Electronics Co., Ltd. | Circuit substrate for preventing warpage and package using the same |
| KR101047139B1 (ko) | 2009-11-11 | 2011-07-07 | 삼성전기주식회사 | 단층 보드온칩 패키지 기판 및 그 제조방법 |
| JP2012164952A (ja) | 2011-01-20 | 2012-08-30 | Ibiden Co Ltd | 電子部品内蔵配線板及びその製造方法 |
| KR20130070129A (ko) | 2011-12-19 | 2013-06-27 | 삼성전기주식회사 | 인쇄회로기판 및 그 제조 방법 |
| KR101500117B1 (ko) | 2013-08-08 | 2015-03-06 | 주식회사 심텍 | 더블 범프 타입 인쇄회로기판 제조 방법 |
| JP2015076465A (ja) * | 2013-10-08 | 2015-04-20 | イビデン株式会社 | プリント配線板、プリント配線板の製造方法、パッケージ−オン−パッケージ |
| KR102152865B1 (ko) * | 2014-02-06 | 2020-09-07 | 엘지이노텍 주식회사 | 인쇄회로기판, 이를 포함하는 패키지 기판 및 이의 제조 방법 |
| KR20150092881A (ko) * | 2014-02-06 | 2015-08-17 | 엘지이노텍 주식회사 | 인쇄회로기판, 패키지 기판 및 이의 제조 방법 |
| KR102212827B1 (ko) * | 2014-06-30 | 2021-02-08 | 엘지이노텍 주식회사 | 인쇄회로기판, 패키지 기판 및 이의 제조 방법 |
| JP2017174953A (ja) | 2016-03-23 | 2017-09-28 | イビデン株式会社 | プリント配線板およびプリント配線板の製造方法 |
| US10049893B2 (en) | 2016-05-11 | 2018-08-14 | Advanced Semiconductor Engineering, Inc. | Semiconductor device with a conductive post |
| JP2018073890A (ja) | 2016-10-25 | 2018-05-10 | イビデン株式会社 | プリント配線板およびプリント配線板の製造方法 |
| CN106505075A (zh) * | 2016-12-27 | 2017-03-15 | 苏州晶方半导体科技股份有限公司 | 双影像传感器封装模组及其形成方法 |
| KR20190115911A (ko) | 2018-04-04 | 2019-10-14 | 엘지이노텍 주식회사 | 인쇄회로기판 및 인쇄회로기판 스트립 |
-
2021
- 2021-05-26 US US17/927,797 patent/US12501548B2/en active Active
- 2021-05-26 WO PCT/KR2021/006562 patent/WO2021242012A1/ko not_active Ceased
- 2021-05-26 JP JP2022573339A patent/JP7766051B2/ja active Active
- 2021-05-26 CN CN202180060159.0A patent/CN116134974A/zh active Pending
- 2021-05-26 EP EP21812665.4A patent/EP4161222A4/en active Pending
-
2025
- 2025-09-08 JP JP2025148501A patent/JP2025172943A/ja active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20080179740A1 (en) * | 2007-01-25 | 2008-07-31 | Advanced Semiconductor Engineering, Inc. | Package substrate, method of fabricating the same and chip package |
| US20150235915A1 (en) * | 2014-02-14 | 2015-08-20 | Taiwan Semiconductor Manufacturing Company, Ltd. | Substrate Design for Semiconductor Packages and Method of Forming Same |
| KR20160084666A (ko) * | 2015-01-06 | 2016-07-14 | 삼성전기주식회사 | 인쇄회로기판, 반도체 패키지 및 이들의 제조방법 |
| US20180254238A1 (en) * | 2017-03-06 | 2018-09-06 | Advanced Semiconductor Engineering, Inc. | Semiconductor device package and a method of manufacturing the same |
| KR20200015974A (ko) * | 2018-08-06 | 2020-02-14 | 엘지이노텍 주식회사 | 인쇄회로기판 및 이를 포함하는 패키지 기판 |
Non-Patent Citations (1)
| Title |
|---|
| See also references of EP4161222A4 * |
Also Published As
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| EP4161222A1 (en) | 2023-04-05 |
| JP2023528811A (ja) | 2023-07-06 |
| JP2025172943A (ja) | 2025-11-26 |
| US12501548B2 (en) | 2025-12-16 |
| CN116134974A (zh) | 2023-05-16 |
| JP7766051B2 (ja) | 2025-11-07 |
| US20230217593A1 (en) | 2023-07-06 |
| EP4161222A4 (en) | 2024-07-10 |
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