WO2022113519A1 - 半導体装置 - Google Patents
半導体装置 Download PDFInfo
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- WO2022113519A1 WO2022113519A1 PCT/JP2021/036399 JP2021036399W WO2022113519A1 WO 2022113519 A1 WO2022113519 A1 WO 2022113519A1 JP 2021036399 W JP2021036399 W JP 2021036399W WO 2022113519 A1 WO2022113519 A1 WO 2022113519A1
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- H10W42/00—Arrangements for protection of devices
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- H10W42/261—Arrangements for protection of devices protecting against electromagnetic or particle radiation, e.g. light, X-rays, gamma-rays or electrons characterised by their shapes or dispositions
- H10W42/267—Patterned shielding planes
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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
- H10W70/62—Insulating or insulated package substrates; Interposers; Redistribution layers characterised by their interconnections
- H10W70/65—Shapes or dispositions of interconnections
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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
- H10W70/685—Shapes or dispositions thereof comprising multiple insulating layers
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- H10W42/20—Arrangements for protection of devices protecting against electromagnetic or particle radiation, e.g. light, X-rays, gamma-rays or electrons
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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
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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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- H10W—GENERIC PACKAGES, INTERCONNECTIONS, CONNECTORS OR OTHER CONSTRUCTIONAL DETAILS OF DEVICES COVERED BY CLASS H10
- H10W72/00—Interconnections or connectors in packages
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- H10W72/0198—Manufacture or treatment batch processes
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- H10W72/00—Interconnections or connectors in packages
- H10W72/851—Dispositions of multiple connectors or interconnections
- H10W72/874—On different surfaces
- H10W72/877—Bump connectors and die-attach connectors
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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
- H10W72/851—Dispositions of multiple connectors or interconnections
- H10W72/874—On different surfaces
- H10W72/884—Die-attach connectors and bond wires
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- H—ELECTRICITY
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- 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
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- H—ELECTRICITY
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- 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
- H10W90/722—Package configurations characterised by the relative positions of pads or connectors relative to package parts of bump connectors between stacked chips
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- H—ELECTRICITY
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- 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
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- H—ELECTRICITY
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- 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
- H10W90/731—Package configurations characterised by the relative positions of pads or connectors relative to package parts of die-attach connectors
- H10W90/734—Package configurations characterised by the relative positions of pads or connectors relative to package parts of die-attach connectors between a chip and a stacked insulating package substrate, interposer or RDL
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- H—ELECTRICITY
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- 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
- H10W90/751—Package configurations characterised by the relative positions of pads or connectors relative to package parts of bond wires
- H10W90/754—Package configurations characterised by the relative positions of pads or connectors relative to package parts of bond wires between a chip and a stacked insulating package substrate, interposer or RDL
Definitions
- This technology relates to semiconductor devices. More specifically, the present invention relates to a semiconductor device including a semiconductor package.
- the integration density is improved by the P réelleP structure.
- stress shear stress or the like
- This stress may cause a failure such as disconnection of the signal line in the wiring layer, and may reduce the reliability of the semiconductor device.
- This technique was created in view of such a situation, and aims to improve reliability in a semiconductor device in which a semiconductor chip is laminated on a wiring layer.
- the first side surface thereof is a wiring layer, a semiconductor chip laminated in a predetermined region on the wiring surface of the wiring layer, and the wiring.
- a semiconductor device including a signal line whose angle formed when straddling the boundary line is less than a predetermined angle in at least one of two regions wired on a surface and divided by any boundary line of the predetermined region. be. This has the effect of preventing disconnection due to stress.
- the signal line includes a predetermined number of segments, any of the predetermined number of segments intersects the boundary line, and the angle with respect to the boundary line is less than the predetermined angle. You may. This has the effect of preventing disconnection due to stress near the boundary line.
- the signal line includes a predetermined number of segments, and one end of any of the predetermined number of segments substantially coincides with a predetermined point on the boundary line, and an angle with respect to the boundary line. May be less than the above-mentioned predetermined angle. This has the effect of preventing disconnection due to stress near the boundary line.
- the signal line includes a plurality of segments including a specific segment whose angle with respect to the boundary line is less than the predetermined angle, and the width of the specific segment among the plurality of segments is It may be wider than the width of the segment that does not correspond to the specific segment among the plurality of segments. This has the effect of improving stress tolerance.
- the signal line includes a predetermined number of segments, and the angle between all the segments in the region where the distance from the boundary line is within a predetermined value and the boundary line is less than the predetermined angle. May be. This has the effect of preventing disconnection due to stress near the boundary line.
- the signal line connects a pair of terminals, the pair of terminals are connected to the wiring layer, and a redundant signal line having a wiring path different from that of the signal line is further wired. Ru. This has the effect of making the wiring redundant.
- the signal line may be wired via a relay via provided on the boundary line. This has the effect of making the wiring redundant.
- a dielectric layer provided with an external terminal, a conductive material to which one of both sides is connected to the external terminal, and a seed layer is further provided, and both sides of the conductive material are provided.
- the other may have a first portion in contact with the dielectric layer and a second portion in non-contact with the seed layer. This has the effect of relieving stress.
- the end face of the conductive material may be tapered. This has the effect of relieving stress.
- the conductive material may include a plurality of land portions and linear line portions. This has the effect of improving stress tolerance.
- the wiring layer may include a signal line region in which the signal line is wired and a power supply ground region in which at least one of the power supply and the ground to the semiconductor chip is supplied. .. This has the effect of improving power supply stability and stress tolerance.
- At least one of the power supply line and the ground line may be wired in a mesh shape in the power supply ground area. This has the effect of improving power supply stability and stress tolerance.
- a solid pattern may be formed in the power supply ground region. This has the effect of improving power supply stability and stress tolerance.
- the angle formed by the boundary line between the signal line region and the power supply ground region may be different from 90 degrees. This has the effect of improving wiring efficiency.
- the wiring layer and the semiconductor chip may be provided in a WCSP (Wafer level Chip Size Package). This has the effect of improving the reliability of the WCSP.
- WCSP Wafer level Chip Size Package
- the wiring layer and the semiconductor chip may be provided in an FBGA (Fine pitch Ball Grid Array) package. This has the effect of improving the reliability of the FBGA package.
- the wiring layer may be formed in the interposer substrate. This has the effect of improving the reliability of the interposer substrate.
- FIG. 1 is an example of a cross-sectional view of the semiconductor device 500 according to the first embodiment of the present technology.
- the semiconductor device 500 includes packages 200, 300 and a package substrate 400.
- the axis parallel to the stacking direction of the packages 200 and 300 will be referred to as the Z axis.
- a predetermined axis perpendicular to the Z axis is defined as the X axis
- the X axis and the axis perpendicular to the Z axis are defined as the Y axis.
- the figure is a cross-sectional view seen from the Y-axis direction.
- Package 200 includes a substrate 302 and laminated dies 308-1 and 308-2 coupled to the substrate 302.
- the number of laminated dies is not limited to two, and may be one or the like.
- the substrate 302 may also include active and passive devices (not shown).
- the substrate 302 may include a through via 306 and may further include a wiring layer (not shown).
- the wiring layer may be formed on the active device and the passive device, and is designed to connect various devices to form a functional circuit.
- the wiring layer may be formed of alternating layers with vias interconnecting layers of dielectric (eg, low dielectric material) and conductive material (eg, copper), any suitable process (eg, copper). Formed by vapor deposition, damascene, dual damascene, etc.).
- Bond pads 303 are formed on one of both sides of the substrate 302, and bond pads 304 are formed on the other.
- the bond pad 303 is used to bond to the laminated dies 308-1 and 308-2.
- the bond pad 304 is used to bond to the package 200.
- Bond pads 303 and 304 may be formed by depositing a conductive material on a thin seed layer (not shown) composed of copper, titanium, nickel, gold, palladium, or a combination thereof.
- the conductive material may be formed by an electrochemical plating method, a electroless plating method, a CVD (Chemical Vapor Deposition) method, an ALD (Atomic Layer Deposition) method, a PVD (Physical Vapor Deposition) method, or a combination thereof. ..
- Examples of the conductive material of the bond pads 303 and 304 are copper, tungsten, aluminum, silver, gold, or a combination thereof.
- the package substrate 400 is made of a semiconductor material such as silicon.
- the package substrate 400 may include an active device and a passive device (not shown).
- the package substrate 400 may also include a wiring layer and vias (not shown) and a bond pad 402.
- the conductive connector 143 is reflowed to attach the package 200 to the bond pad 402.
- An underfill (not shown) surrounding the conductive connector 143 may be formed between the package 200 and the package substrate 400.
- the underfill may be formed by a capillary flow process after the package 200 is mounted, or by a suitable vapor deposition method before the package 200 is mounted.
- the package 200 includes a front rewiring layer 120, an integrated circuit die 111, a through via 106, a sealing material 119, a dielectric layer 103, a dielectric layer 105 and a conductive connector 314.
- One of both sides of the front rewiring layer 120 is connected to the conductive connector 143, and the other is laminated with an integrated circuit die 111 which is a rectangular semiconductor chip.
- the front rewiring layer 120 is an example of the wiring layer described in the claims
- the integrated circuit die 111 is an example of the semiconductor chip described in the claims.
- the surface on which the integrated circuit die 111 is laminated is connected to the dielectric layer 105 via a penetrating via 106 penetrating the sealing material 119.
- the dielectric layer 103 is laminated on the dielectric layer 105.
- a conductive connector 314 is formed in the opening of the dielectric layer 103.
- the conductive connector 314 is connected to the package 300.
- FIG. 2 is an example of a cross-sectional view of the front rewiring layer 120 and the integrated circuit die 111 according to the first embodiment of the present technology.
- the integrated circuit die 111 is laminated in a part of the front rewiring layer 120, and the sealing material 119 and the penetrating via (not shown) are provided in the remaining area.
- the front rewiring layer 120 is described in a simplified manner as compared with the configuration illustrated in FIG.
- a signal line is wired along the wiring pattern 126 or the like on the XY plane in the figure.
- the integrated circuit die 111 is laminated on a part of the plane (wiring surface), and the sealing material 119 is formed on the remaining area.
- the boundary line of the region where the integrated circuit dies 111 are stacked includes the points of the coordinates (X2, Z0) in the figure and is a straight line extending along the Y axis. Applicable.
- the signal line is wired by the wiring pattern 126 straddling the boundary line.
- stress may be concentrated in the vicinity of the boundary line of the region where the integrated circuit dies 111 are stacked.
- shear stress may occur in the vicinity of the boundary line along the Z direction due to differences in the CTE (Coefficient of Thermal Expansion) of each member.
- stress is concentrated in the region from the coordinate X1 to the coordinate X3.
- FIG. 3 is a plan view showing an example of a wiring pattern in the first embodiment of the present technology.
- the figure is a plan view of the region from the coordinates X1 to X3 of the front rewiring layer 120 as viewed from the Z-axis direction.
- the front rewiring layer 120 includes two or more laminated dielectric layers, but the figure illustrates only one of them.
- Conductive vias 131-1 and 131-3 are formed between the coordinates X1 and X2, and conductive vias 131-2 and 131-4 are formed between the coordinates X2 and the coordinates X3.
- the signal lines 126-1 and 126-2 are formed by the wiring pattern 126.
- the signal line 126-1 straddles the boundary line of the region where the integrated circuit die 111 is laminated, and connects the conductive via 131-1 and the conductive via 131-2.
- the signal line 126-2 straddles the boundary line and connects the conductive via 131-3 and the conductive via 131-4.
- the wiring path of the signal line 126-1 can be divided into a plurality of (for example, three) line segments.
- Each of the line segments when the wiring path is divided is hereinafter referred to as a segment.
- These segments include a specific segment that intersects the boundary line, and the angle ⁇ 1 between the segment and the boundary line is less than a predetermined angle (for example, 50 degrees).
- the wiring path of the signal line 126-2 includes a bending point on the boundary line that bends in a direction in which the angle with respect to the boundary line is less than a predetermined angle (for example, 50 degrees). Black circles in the figure indicate bending points.
- a segment extending to the right from this bending point has one end substantially coincided with a predetermined point on the boundary line (intersection between the wiring path and the boundary line), and the angle with respect to the boundary line is less than a predetermined angle (for example, 50 degrees). It is a segment of.
- the angle between the segment extending to the left from the bending point and the boundary line does not have to be less than a predetermined angle. That is, when the wiring path bends at the boundary line, at least one boundary line between a segment extending to one (left side) of two regions divided by the boundary line and a segment extending to the other (right side) of those regions. It suffices if the angle with respect to is less than a predetermined angle.
- the wiring surface of the front rewiring layer 120 has a predetermined angle formed when straddling the boundary line in at least one of the two regions divided by the boundary line of any of the stacked regions of the semiconductor die 111.
- Signal lines 126-1 and 126-2 that are less than the angle are wired.
- the angle with respect to the boundary line is set to less than 50 degrees, but it can be said that the angle is preferably close to 0 degrees in consideration of stress tolerance alone. However, in consideration of wiring efficiency, it is preferably 30 to 50 degrees.
- FIG. 4 is a diagram showing a carrier substrate 101 and a peeling layer 102 formed on the carrier substrate 101 according to the first embodiment of the present technique.
- Package areas 600 and 601 for forming the package 200 are shown, respectively.
- the carrier substrate 101 may be made of glass or ceramic, or may be a wafer capable of forming a plurality of packages on the carrier substrate 101 at the same time.
- the release layer 102 is formed on the carrier substrate 101.
- the release layer 102, together with the carrier substrate 101, may be removed from the structure formed in the subsequent steps.
- An example of the material of the release layer 102 is an epoxy-based heat-releasing material that loses its adhesiveness when heated, and is, for example, a light-to-heat conversion type coating (LTHC: Light-To-Heat-Conversion Release Coating). ..
- Another example is an ultraviolet (UV) adhesive that loses its adhesiveness when exposed to ultraviolet light.
- the release layer 102 may be one that has been discharged as a liquid and cured, or may be a laminated film laminated on the carrier substrate 101. The upper surface of the release layer 102 may be flattened.
- the dielectric layer 103 and the wiring pattern 104 are formed.
- the dielectric layer 103 is formed on the release layer 102.
- An example of the material of the dielectric layer 103 is a polymer such as polybenzoxazole (PBO: Poly-BenzoOxazole), polyimide, and benzocyclobutene (BCB: BenzoCycloButene).
- PBO Poly-BenzoOxazole
- BCB benzocyclobutene
- Other examples include nitrides such as silicon nitride.
- oxides such as silicon oxide, phosphate glass (PSG: Phosphrous Silicate Glass), borosilicate glass (BSG: BoroSilicate Glass), and boron-doped phosphate glass (BPSG: Boro-Phospho Silicate Glass) can be mentioned. ..
- the dielectric layer 103 is formed by any acceptable deposition process such as spin coating, chemical vapor deposition (CVD), laminating, or a combination thereof
- a wiring pattern 104 is formed on the dielectric layer 103.
- a method of forming a seed layer (not shown) on the dielectric layer 103 can be mentioned.
- the seed layer is a metal layer, which may consist of a single layer or multiple layers made of different materials.
- An example of a seed layer consists of a titanium layer and a copper layer above the titanium layer.
- the seed layer may be formed by using, for example, PVD or the like.
- the optimum thickness of the seed layer for forming the wiring pattern is 50 nanometers (nm) to 200 nanometers (nm).
- a photoresist is formed and patterned on the seed layer.
- the photoresist is formed by spin coating or the like.
- the photoresist pattern is formed corresponding to the wiring pattern 104.
- an opening is formed in the photoresist to expose the seed layer.
- a conductive material is formed in the openings of the photoresist and the exposed parts of the seed layer.
- the conductive material is formed by plating such as electrolytic plating or electroless plating.
- the conductive material may be composed of a metal such as copper, titanium, tungsten or aluminum.
- the photoresist is removed by an ashing treatment using oxygen plasma or the like.
- the exposed portion of the seed layer is then removed by using an etching process such as wet etching or dry etching.
- the seed layer and the rest of the conductive material form the wiring pattern 104.
- the conductive material may have a first portion that is in contact with the seed layer and a second portion that is not in contact with the seed layer. According to this, since the seed layer is not formed directly under the second portion of the conductive material, the wiring pattern 104 can be deformed or moved in accordance with the stress from the outside, and the stress is applied. It can be effectively mitigated. Further, when external terminals such as through vias, conductive pillars, and solder balls, which will be described later, and vias are formed on the wiring pattern 104, the stress applied to these external terminals and the roots of the vias can be reduced. ..
- the dielectric layer 105 is formed on the wiring pattern 104 and the dielectric layer 103.
- the dielectric layer 105 is made of the same material as the dielectric layer 103 and is patterned using a lithography mask.
- the dielectric layer 105 is then patterned to form an opening for exposing a portion of the wiring pattern 104.
- the patterning is performed by exposing the dielectric layer 105 to light, or by a process such as etching using anisotropic etching.
- the dielectric layers 103 and 105 and the wiring pattern 104 may be referred to as a back surface rewiring layer 107.
- the backside rewiring layer 107 includes two dielectric layers 103, 105 and one wiring pattern 104.
- the backside rewiring layer 107 can include any number of dielectric layers, wiring patterns, and vias. By repeating the steps of forming the wiring pattern 104 and the dielectric layer 105, one or more additional wiring patterns and the dielectric layer can be formed on the back surface rewiring layer 107. Vias are formed during the formation of the wiring pattern by forming the seed layer of the wiring pattern and the conductive material in the openings of the underlying dielectric layer. Vias connect vertically adjacent wiring patterns to each other.
- a penetrating via 106 is formed.
- a seed layer of the back surface rewiring layer 107 using the above materials, processes, on, for example, the exposed portions of the dielectric layer 105 and the wiring pattern 104. (Not shown) is formed.
- a photoresist is formed using the above-mentioned materials and processes, and patterned on the seed layer.
- the photoresist pattern is formed corresponding to the through vias.
- a conductive material is formed in the opening of the photoresist and the exposed portion of the seed layer by using the above-mentioned materials and processes.
- the photoresist and a part of the seed layer from which the conductive material is not formed are removed.
- the seed layer may be removed by wet etching using a conductive material as a mask.
- the conductive material may have a first portion that is in contact with the seed layer and a second portion that is not in contact with the base layer. The remaining seed layer and conductive material form a penetrating via 106 and a wiring pattern (not shown).
- the integrated circuit die 111 is adhered to the dielectric layer 105 by the adhesive 112. As shown in the figure, the integrated circuit die 111 is fixed to each of the package regions 600 and 601. In other embodiments, more integrated circuit dies 111 may be fixed to each region.
- the integrated circuit die 111 can be a logic die, a memory die, a power management integrated circuit die, an RF (Radio Frequency) die, a sensor die, a MEMS (Micro Electro Mechanical Systems) die, a signal processing die, a front end die, or a combination thereof.
- a logic die for example, a microcontroller is used as a central processing unit.
- a memory die a DRAM (Dynamic Random Access Memory) die, a SRAM (Static RAM) die, or the like is used.
- DSP Digital Signal Processing
- the front-end die for example, an analog front-end (AFE: Analog Front End) die is used.
- a plurality of integrated circuit dies or dummy dies when fixed, they may be of different sizes (eg, different heights and / or surface areas), and in other embodiments, the integrated circuit dies 111 are of the same size (eg, different heights and / or surface areas). For example, they may have the same height and / or surface area).
- a dummy die for the purpose of warping prevention and stress relaxation may be fixed.
- the height of each die may be different.
- the thickness may be thinner than that of the integrated circuit die 111 in order to reduce the influence of stress on the wiring such as the front rewiring layer described later.
- each integrated circuit die 111 Prior to being fixed to the dielectric layer 105, the integrated circuit die 111 is processed according to an applicable manufacturing process to form an integrated circuit within the integrated circuit die 111.
- each integrated circuit die 111 includes a semiconductor substrate 113 made of silicon.
- the semiconductor substrate 113 may include other semiconductor materials such as germanium, compound semiconductors, alloy semiconductors, or a combination thereof.
- Compound semiconductors include, for example, silicon carbide, gallium phosphide, gallium phosphide, indium phosphide, indium arsenate, and / or indium antimonide.
- Alloy semiconductors include silicon germanium (SiGe), gallium arsenide phosphorus (GaAsP), indium aluminum arsenide (AlInAs), aluminum gallium arsenide (AlGaAs) and the like.
- the alloy semiconductor may contain gallium arsenide lanthanum (GaLnAs), gallium adjacent gallium indium (GaInP), gallium arsenide indium gallium (GaInAsP), and the like.
- Devices such as transistors, diodes, capacitors, resistors, etc. may be formed in or on the semiconductor substrate 113, eg, formed by a wiring pattern of one or more dielectric layers on the semiconductor substrate 113. It may be interconnected by the interconnect structure 114 to form an integrated circuit.
- the integrated circuit die 111 is further configured with a pad 115 such as an aluminum pad to which an external connection is made.
- the pad 115 is on the active surface on which the circuit is formed in the integrated circuit die 111.
- the passivation film 116 is formed on the integrated circuit die 111 and part of the pad 115. An opening penetrates from the passivation membrane 116 to the pad 115.
- a die connector 117 such as a conductive pillar (eg, made of a metal such as copper), is located in the opening via a passivation membrane 116 and is mechanically and electrically coupled to each pad 115.
- the die connector 117 may be formed by, for example, plating.
- the die connector 117 electrically couples each integrated circuit of the integrated circuit die 111.
- a single layer or a plurality of rewiring layers may be formed on the pad 115 and the passivation film 116.
- the forming process is similar to the backside rewiring layer described above.
- the die connector 117 is connected to the wiring on the uppermost layer of the rewiring layer.
- the conductive material constituting the wiring pattern may have a first portion that is in contact with the seed layer and a second portion that is not in contact with the seed layer. ..
- the wiring pattern can be deformed or moved in accordance with the stress from the outside, and the stress is effective. Can be alleviated.
- terminals such as die connectors and vias, which will be described later in the present embodiment, are formed on the wiring pattern, the stress applied to the roots of these terminals can be reduced.
- the gap width A between the first portion and the second portion is preferably, for example, 50 nanometers (nm) or more and 1000 nanometers (nm) or less.
- the dielectric material 118 is formed on the active surface side of the integrated circuit die 111. Further, the dielectric material 118 is formed so as to seal the die connector 117.
- the dielectric material 118 may be a polymer such as PBO, polyimide, BCB, a nitride such as silicon nitride, an oxide such as silicon oxide, PSG, BSG, BPSG, BPSG, or a combination thereof.
- the dielectric layer 118 may be formed by spin coating, laminating, CVD, or the like.
- the adhesive 112 is on the back surface of the integrated circuit die 111, and the integrated circuit die 111 is adhered to the back surface rewiring layer 107 made of the dielectric layer 105 or the like shown in the figure.
- any suitable adhesive, epoxy resin, die attach film (DAF: Die Attach Film) and the like can be used.
- the adhesive 112 may be applied to the back surface of the integrated circuit die 111, for example, the back surface of each semiconductor wafer, or may be applied to the front surface of the carrier substrate 101.
- the integrated circuit die 111 is fragmented by a method such as sewing or dicing, and is adhered to the dielectric layer 105 by an adhesive 112 using, for example, a pick and place tool.
- the sealing material 119 is a compound for molding (for example, epoxy resin), and is applied by a method such as compression molding or transfer molding. After curing by heat or light, the encapsulant 119 is ground to expose the through vias 106 and the die connector 117. The upper surfaces of the penetrating via 106, the die connector 117, and the sealing material 119 have a flattened shape after grinding.
- the front rewiring layer 120 includes dielectric layers 121, 122, 123, 124 and wiring patterns 125, 126, 127.
- the dielectric layer 121 is deposited on the encapsulant 119, the through via 106, and the die connector 117.
- the dielectric layer 121 is formed of a polymer made of a photosensitive material such as PBO, polyimide, or BCB, and is patterned using a lithography mask.
- the dielectric layer 121 may be formed of a nitride such as silicon nitride, an oxide such as silicon oxide, PSG, BSG, BPSG, BPSG, or the like.
- the dielectric layer 121 may be formed by spin coating, laminating, CVD, etc., or a combination thereof.
- the dielectric layer 121 is then patterned to form an opening for exposing a portion of the through via 106 and the die connector 117.
- the patterning is performed by exposing the dielectric layer 121 when the dielectric layer 121 is a photosensitive material. Alternatively, it may be carried out by an acceptable process, for example by etching with anisotropic etching.
- a wiring pattern 125 having vias is formed on the dielectric layer 121.
- a seed layer (not shown) is formed on the dielectric layer 121 and at the opening of the dielectric layer 121.
- the seed layer is a metal layer, which may consist of a single layer or multiple layers made of different materials.
- An example of a seed layer consists of a titanium layer and a copper layer above the titanium layer.
- the seed layer may be formed by using, for example, PVD or the like.
- the optimum thickness of the seed layer for forming the wiring pattern is 50 nanometers (nm) to 200 nanometers (nm).
- a photoresist is formed and patterned on the seed layer.
- the photoresist is formed by spin coating or the like.
- the photoresist pattern is formed corresponding to the wiring pattern 125.
- an opening is formed in the photoresist to expose the seed layer.
- a conductive material is formed in the openings of the photoresist and the exposed parts of the seed layer.
- the conductive material is formed by plating such as electrolytic plating or electroless plating.
- the conductive material may be composed of a metal such as copper, titanium, tungsten or aluminum.
- the photoresist is removed by an ashing treatment using oxygen plasma or the like.
- the exposed portion of the seed layer is then removed by using an etching process such as wet etching or dry etching.
- the seed layer and the rest of the conductive material form the wiring pattern 125 and vias. Vias are formed through the dielectric layer 121, for example, in the openings to through vias 106 and / or die connectors
- the dielectric layers 121, 122, 123, 124 and the wiring patterns 125, 126, 127 are formed in the front rewiring layer 120 as shown in FIG.
- An example of the thickness of the dielectric layers 121, 122, 123 and 124 is 1 micrometer (um) to 10 micrometer (um), but 5 micrometer (um) or less is desirable from the viewpoint of low profile.
- An example of the film thickness of the wiring patterns 125, 126 and 127 is 0.5 micrometer (um) to 4 micrometer (um), but it is also preferably 2 um or less from the viewpoint of low profile.
- the wiring pattern (for example, wiring pattern 125) under the front rewiring layer 120 can be patterned, coated with the dielectric layer 122, and then flattened by, for example, CMP (Chemical Mechanical Polishing).
- CMP Chemical Mechanical Polishing
- the dielectric layer 122 is divided into a lower layer formed before the flattening treatment and an upper layer formed after the flattening treatment, with the upper surface of the wiring pattern 125 as a boundary.
- the wiring pattern 125 may be formed thicker than 126 and 127.
- the wiring pattern 125 may be 3 micrometers (um), and the wiring patterns 126 and 127 may be 2 micrometers (um).
- the flatness is further improved without forming a recess on the upper surface of the via of the wiring pattern 125.
- an example of the wiring pitch of the wiring patterns 125, 126 and 127 is 1 micrometer (um) to 10 micrometer (um), but 5 micrometer (um) or less is desirable from the viewpoint of miniaturization.
- FIGS. 13-17 show cross-sectional views of intermediate steps during the further process after FIG.
- the dielectric layer 124 is then patterned. Patterning is performed by the process described above.
- the front rewiring layer 120 may be formed with more or less dielectric layers and wiring patterns.
- the under bump metal (UBM: UnderBarrier Metal) 142 is formed on the outer surface of the front rewiring layer 120.
- the underbump metal 142 is used to couple to the conductive connector 143.
- the underbump metal 142 is connected to the wiring pattern 127 via an opening formed in the dielectric layer 124.
- the conductive connector 143 is formed on the underbump metal 142.
- the conductive connector 143 may be a BGA (BallGridArray) connector, a solder ball, a metal column, a C4 bump, a micro bump, a bump formed by the ENEPG (Electroless Nickel Electroless Palladium Immersion Gold) method, or the like.
- the conductive connector 143 may include a conductive material such as solder, copper, aluminum, gold, nickel, silver, palladium, tin, or a combination thereof.
- the conductive connector 143 is formed by first forming a layer of solder by commonly used methods such as evaporation, electroplating, printing, solder transfer, ball placement and the like. After the solder layer is formed, reflow may be performed to form the solder layer into the desired bump shape.
- the carrier substrate 101 is peeled off from the dielectric layer 103 of the back surface rewiring layer 107.
- the peeling of the carrier substrate 101 is performed by irradiating the peeling layer 102 with light such as laser light or UV light so that the peeling layer 102 decomposes under the heat of light and the carrier substrate 101 can be removed. It can be carried out. Then, this structure is turned over and placed on the tape 144.
- the dielectric layer 103 is formed with an opening that exposes a part of the wiring pattern 104.
- the openings are formed using, for example, laser perforation, etching, and the like.
- the individualization step is performed by dicing between adjacent package areas 600 and 601 along the scribe line area.
- the boundary is formed. It is possible to prevent disconnection due to stress near the line. By preventing disconnection, the reliability of the semiconductor device 500 can be improved.
- Second Embodiment> In the first embodiment described above, a signal line 126-1 or the like including a segment whose angle between the angle and the boundary line is less than a predetermined angle is wired, but the outside of the vicinity of the boundary line in the dielectric layers 103 and 105. It is also possible that stress is concentrated on the terminals.
- the semiconductor device 500 of the second embodiment is different from the first embodiment in that the stress on the external terminal is relaxed.
- FIG. 18 is an example of a cross-sectional view of the dielectric layers 103 and 105 in the second embodiment of the present technology.
- the figure is a cross-sectional view seen from the Y direction after the unnecessary region of the seed layer 245 is removed and the dielectric layer 105 is formed on the wiring pattern 104 and the dielectric layer 103.
- An external terminal 246 is formed on the dielectric layer 105.
- a conductive material 240 is formed in the lower portion of the external terminal 246.
- One of both sides of the conductive material 240 is connected to the external terminal 246.
- the other side of both surfaces of the conductive material 240 has a first portion in contact with the seed layer 245 and a second portion in non-contact with the seed layer 245.
- the portion of the lower surface of the conductive material 240 having a width dXA corresponds to the first portion, and the portions having widths dXB on both sides thereof correspond to the second portion.
- the first part overlaps the seed layer 245, and the second part does not overlap the seed layer 245.
- Such a shape is formed by overetching the seed layer 245 over the region of the conductive material 240 when the seed layer 245 is removed by an etching process using the conductive material 240 as a mask. In the case of wet etching, it is formed by controlling the etching amount, for example, with time so that the etchant penetrates inside the region of the conductive material 240.
- the conductive material 240 can be deformed or moved in accordance with stress from the outside. , Stress can be effectively relieved. Further, when external terminals 246 (the figure is an example of a solder ball) or vias (not shown) such as through vias, conductive pillars, and solder balls are formed on the conductive material 240, these external terminals 246 and the like are formed. The stress applied to the root of the via can be reduced.
- the width dXA of the second portion is 50 nanometers (nm) or more and 1000 nanometers (nm) or less when the conductive material 240 is made of copper (Cu) having a thickness of about 5 micrometers ( ⁇ m). Is preferable.
- width dXB of the first portion and the width dXC of the exposed portion (that is, the opening of the dielectric layer 105) of the conductive material 240 may have the relationship shown in the following equation. dX B ⁇ dX C ... Equation 1
- the seed layer 245 is arranged inside the contact portion between the conductive material 240 and the external terminal 246 or the via.
- the degree of freedom of the conductive material 240 and the external terminal 246 or via with respect to the stress applied to the exposed portion of the conductive material 240 is further improved, and the stress is increased. Can be effectively alleviated.
- the width of the upper surface of the conductive material 240 and the width dXC of the exposed portion (opening of the dielectric layer 105) of the conductive material 240 deviate from 0 to several tens of nanometers (nm). It may be made to match substantially. That is, an external terminal 246 such as a solder ball, vias (not shown), or the like may be connected to the conductive material 240 over the entire upper surface of the conductive material 240. By doing so, the degree of freedom of the external terminal 246 or via by the second portion can be improved, and the effect of stress relaxation can be enhanced.
- the second portion may be depleted (air layer), but may be filled with the dielectric layer 105. According to this, when the dielectric layer 105 is softer than the seed layer 245, the degree of freedom of the conductive material 240 is improved and the stress can be relieved.
- FIG. 19 is a plan view of the conductive material 240 as seen from the Z-axis direction.
- the conductive material 240 has a linear line portion 243 and a circular or elliptical land portion 244.
- a second portion may be arranged on the entire circumference of the first portion except for the connection portion between the line portion 243 and the land portion 244.
- the second portion may be arranged with a substantially constant width (excluding the vicinity of the connection portion of the line portion 243 and the land portion 244) on the entire circumference of the first portion.
- the second portion of the land portion 244 is arranged at a distance from the dielectric layer 103. Further, as described in FIG. 18, this interval may be empty (air layer), but may be filled with the dielectric layer 105. With such a configuration, the degree of freedom of the conductive material 240 and the external terminal 246 or via is further improved, and stress can be effectively relieved.
- the conductive material 240 has a portion in contact with the seed layer 245 and a portion in contact with the seed layer 245, the dielectric layer 103 or the like may be used.
- the stress generated near the boundary line can be relaxed.
- the conductive material 240 is provided with a portion in contact with the seed layer 245 and a portion in contact with the seed layer 245, but the stress may not be completely relieved even with this configuration. ..
- the semiconductor device 500 of the first modification of the second embodiment is different from the second embodiment in that the end face of the conductive material 240 is tapered.
- FIG. 20 is an example of a cross-sectional view of the dielectric layers 103 and 105 in the first modification of the second embodiment of the present technology.
- the upper surface (the surface connected to the external terminal 246 in the figure) of the conductive material 240 of the first modification of the second embodiment has a larger area than the lower surface. As a result, the end face of the conductive material 240 becomes tapered.
- the horizontal difference between the upper surface and the lower surface end face of the conductive material 240 is preferably about 50 nanometers (nm) to 1000 nanometers (nm).
- the stress can be relaxed more effectively.
- the conductive material 240 has a line portion 243 and a land portion 244, but in this configuration, stress may not be sufficiently relieved.
- the semiconductor device 500 of the second modification of the second embodiment is different from the second embodiment in that a plurality of land portions 244 are provided.
- FIG. 21 is an example of a plan view of the dielectric layer 103 in the second modification of the second embodiment of the present technology.
- the conductive material 240 includes a plurality of land portions 244.
- a line portion 243 is formed between the land portions 244. According to this, the wiring resistance at the connection portion can be halved. Further, the function can be maintained even if a disconnection occurs in the terminal (external terminal 246 or via) connected to either of them. Further, by having the second portion as described above, the degree of freedom of the conductive material 240 and the external terminal 246 or via can be further improved, and the stress can be more effectively relieved.
- first modification and the first modification of the second embodiment can be applied to the second modification of the second embodiment.
- the conductive material 240 has a plurality of land portions 244, the wiring resistance is reduced and the stress is more effectively relieved. Can be done.
- the signal line 126-1 or the like including a specific segment whose angle with the boundary line is less than a predetermined angle is wired, but in this configuration, the stress is sufficiently relaxed. Sometimes you can't.
- the semiconductor device 500 of the third embodiment is different from the first embodiment in that the width of the segment intersecting the boundary line is widened.
- FIG. 22 is a plan view showing an example of a wiring pattern in the third embodiment of the present technology.
- the signal line 126-1 straddles the boundary line of the region where the integrated circuit die 111 is laminated, and connects the conductive via 131-1 and the conductive via 131-2. do.
- the signal line 126-2 straddles the boundary line and connects the conductive via 131-3 and the conductive via 131-4.
- the wiring path of the signal line 126-1 includes a specific segment that intersects the boundary line and a segment that does not intersect.
- the width of the segment that intersects the boundary is wider than the width of the segment that does not intersect. The same applies to the signal line 126-2.
- the width of the segment less than a predetermined angle with respect to the boundary line can be widened as in the first embodiment.
- the dimension in the width direction of the wiring path is advantageous from the viewpoint of preventing disconnection, but from the viewpoint of wiring density, it is desirable that the dimension in the width direction of the wiring path is small. Therefore, it is desirable that the length of the segment having a width of 2 W (for example, 10 ⁇ m) is as short as possible.
- the distance from the upper surface of the semiconductor substrate 113 to the wiring path is L
- at least the segment of the wiring path is extended by 5 ⁇ L (actual measurement value in the case of this experimental example is 100 ⁇ m) around the boundary line. At that time, it was possible to suppress the occurrence of disconnection of the wiring path due to stress.
- the second embodiment and the first and second variants thereof can also be applied to the third embodiment.
- the width of the segment intersecting the boundary line is made wider than that of the non-intersecting segment, so that the stress generated in the vicinity of the boundary line can be relaxed.
- the angle with the boundary line of one segment in the wiring path is set to be less than a predetermined angle, but in this configuration, the stress may not be sufficiently relieved.
- the semiconductor device 500 of the fourth embodiment is different from the first embodiment in that the angle with the boundary line is less than a predetermined angle for all the segments within a predetermined distance from the boundary line.
- FIG. 24 is a plan view showing an example of a wiring pattern in the fourth embodiment of the present technology.
- each wiring path of the signal lines 126-1 and 126-2 is divided into five segments.
- the distance from the lower surface of the integrated circuit die 111 to the wiring path is L.
- the angle with respect to the boundary line is set in all the segments of the wiring path. It is arranged so as to be 50 degrees or less.
- the angle formed by the boundary line is less than the predetermined angle for all the segments in the region where the distance from the boundary line is within a predetermined distance (5 ⁇ L or the like).
- the stress at the boundary line is mainly generated in the direction perpendicular to the boundary surface (90 degree direction). Therefore, by adopting such a configuration, the stress tolerance in all the wiring paths near the boundary line can be improved. Can be improved.
- each wiring path of the signal lines 126-1 and 126-2 has segments extending along the boundary line (in the direction of 0 degrees) at two points. By doing so, the distance of each segment having an angle other than 0 degrees with respect to the boundary line can be shortened, and the risk of disconnection can be further reduced.
- the width of the signal line is constant (for example, 5 ⁇ m), but the width of each segment having an angle other than 0 degrees with respect to the boundary line is set along the boundary line (in the direction of 0 degrees). It can also be larger than the width of the extending segment (eg, doubled to 10 ⁇ m). This makes it possible to further reduce the risk of disconnection.
- the angle formed with the boundary line is set to be less than the predetermined angle for all the segments in the region within a predetermined distance from the boundary line, so that the stress tolerance in the wiring path is further improved. Can be made to.
- a signal line 126-1 or the like including a segment whose angle with the boundary line is less than a predetermined angle is wired, but in this configuration, the reliability of the semiconductor device 500 is insufficient. There is a risk of The semiconductor device 500 of the fifth embodiment is different from the first embodiment in that the reliability is improved by the redundancy.
- FIG. 25 is a plan view showing an example of a wiring pattern in the fifth embodiment of the present technology.
- the conductive vias 131-1 and 131-3 are electrically connected to each other by a signal line 126-3 that does not cross the boundary between the integrated circuit die 111 and the encapsulant 119.
- the conductive via 131-2 and the conductive via 131-4 are electrically connected to each other by a signal line 126-4 that does not cross the boundary line.
- the required wiring path is only the path of the signal line 126-1 and the signal line 126-2.
- the path via 126-3 is a redundant path.
- the approach angles to the boundary line between the integrated circuit die 111 and the sealing material 119 are different from each other. By doing so, even when a stress having an angle other than 90 degrees with respect to the boundary line is generated, the stress tolerance of the two paths as a whole can be improved.
- the signal lines are wired to both the wiring path of the signal line 126-1 and the redundant path, the reliability can be improved.
- the reliability is improved by the redundancy, but in this configuration, the resistance to stress may be insufficient.
- the semiconductor device 500 of the modification of the fifth embodiment is different from the fifth embodiment in that the stress resistance is improved by providing the relay via.
- FIG. 26 is a plan view showing an example of a wiring pattern in a modified example of the fifth embodiment of the present technique.
- a relay via 141 is further arranged on the boundary line in the front rewiring layer 120 of the modification of the fifth embodiment.
- the signal line 126-1 is wired between the conductive via 131-1 and the relay via 141
- the signal line 126-2 is wired between the conductive via 131-2 and the relay via 141
- the signal line 126-3 is wired between the conductive via 131-3 and the relay via 141
- the signal line 126-4 is wired between the conductive via 131-4 and the relay via 141
- the signal line 126-5 is wired between the conductive via 131-1 and the conductive via 131-3
- the signal line 126-6 is wired between the conductive via 131-2 and the conductive via 131-4. Will be done.
- Each of the signal lines connected to the relay via 141 may be formed in different layers.
- the paths of the signal lines 126-3 to 126-6 are redundant paths with respect to the wiring paths of the signal lines 126-1 and 126-2.
- the signal lines 126-3 to 126-6 are examples of redundant signal lines.
- the resistance to stress can be improved. Further, as shown in the figure, by making the approach angle to the boundary line different between the signal line 126-1 and the signal line 126-2, the boundary line has an angle other than 90 degrees with respect to the boundary line. Even when stress is generated, stress tolerance can be improved.
- FIG. 27 is an example of a cross-sectional view of the front rewiring layer 120 in the modified example of the fifth embodiment of the present technology. As illustrated in the figure, the relay via 141 is arranged on the boundary line.
- the wiring paths described in FIGS. 3, 22 to 26 are the wiring patterns 125, 126, 127 existing on the dielectric layers 121, 122, 123, 124 constituting the front rewiring layer 120, respectively. It is a wiring path that constitutes either one. With respect to this wiring path, it is also effective to increase the density of the wiring pattern in the predetermined area near the boundary line, that is, the number of wiring paths extending beyond the predetermined area of the boundary line as the distance from the integrated circuit die 111 increases. be. This is because the stress from the integrated circuit die 111 decreases as the distance from the integrated circuit die 111 increases.
- the wiring pattern 125 is the closest to the integrated circuit die 111, and the wiring pattern 127 is the farthest. Therefore, for example, the density of the wiring pattern at the boundary line in the wiring pattern 127 is made larger than that in the wiring pattern 125. By doing so, the wiring path extending beyond more boundaries can be configured away from the integrated circuit die 111. Further, since the number of wiring paths extending beyond the boundary line in the wiring pattern 125 is small, it is possible to increase the width of each wiring path and improve the resistance to stress.
- the wiring pattern in which the distance from the integrated circuit die is relatively small is shown in any of FIGS. 3, 22 to 26 described above. It is also possible to adopt a path arrangement.
- a wiring pattern for example, wiring pattern 126 or 127 in the front rewiring layer 120
- the wiring pattern is perpendicular to the boundary line and the width of each segment is the same. It is also possible to adopt the wiring path of. As a result, the method of increasing the wiring efficiency is also useful from the viewpoint of achieving both wiring efficiency and stress resistance.
- the stress tolerance can be improved.
- a signal line 126-1 or the like including a segment whose angle between the boundary line and the boundary line is less than a predetermined angle is wired, but in this configuration, power supply stability and stress tolerance are insufficient. I have something to do.
- the semiconductor device 500 of the sixth embodiment is different from the first embodiment in that the power supply and the ground are spread in a mesh shape or a solid shape.
- FIG. 28 is an example of a plan view of the front rewiring layer 120 according to the sixth embodiment of the present technology.
- the alternate long and short dash line in the figure shows the boundary line of the region where the integrated circuit die 111 is laminated.
- a power supply ground area 128 and a signal line area 129 are provided in the vicinity of the boundary line.
- the shaded area indicates the power supply ground area 128.
- the gray area indicates the signal line area 129.
- the shape of each of the power supply ground area 128 and the signal line area 129 is, for example, a rectangle (rectangle or the like).
- the power supply ground area 128 is an area to which at least one of the power supply and the ground to the integrated circuit die 111 is supplied.
- a power supply and a ground are formed by a solid pattern. By doing so, both power supply stability and stress resistance can be improved. Only the signal line is wired in the signal line region 129 by the wiring pattern illustrated in FIG. 3 and the like.
- FIG. 29 is a diagram showing a configuration example of the power supply ground region 128 in the sixth embodiment of the present technology.
- a signal line such as a signal line 126-1 can be wired in the power supply ground area 128.
- the shaded area around it indicates a solid pattern of power and ground.
- the back rewiring layer 107 can also have the same configuration.
- the power supply and the ground are provided in a mesh shape or a solid shape in the vicinity of the boundary line, the power supply stability and the stress resistance can be improved.
- the rectangular power supply ground area 128 and the signal line area 129 are arranged.
- the signal line is wired diagonally with respect to the boundary line, a dead space in which a wiring path is not formed may occur, and the wiring efficiency may decrease.
- the semiconductor device 500 of the modification of the sixth embodiment is different from the sixth embodiment in that the wiring efficiency is improved.
- FIG. 30 is an example of a plan view of the front rewiring layer 120 in the modified example of the sixth embodiment of the present technology.
- the angle between the boundary line of the power supply ground area 128 and the signal line area 129 and the boundary line of the area where the integrated circuit die 111 is laminated is 90.
- the angle is different from the degree (for example, 45 degrees). As a result, dead space can be reduced and wiring efficiency can be improved.
- the angle formed by the boundary between the power supply ground area 128 and the signal line area 129 and the boundary line of the area where the integrated circuit die 111 is laminated is 90 degrees. Therefore, dead space can be reduced and wiring efficiency can be improved.
- the wiring pattern illustrated in FIG. 3 is applied to the PoP structure in which the package 300 is laminated on the package 200.
- the wiring pattern of FIG. 3 can also be applied to packages other than the PoP structure such as WCSP (Wafer level Chip Size Package).
- the semiconductor device 500 of the seventh embodiment is different from the first embodiment in that it includes WCSP and the like.
- FIG. 31 is an example of a cross-sectional view of the semiconductor device 500 according to the seventh embodiment of the present technology.
- the semiconductor device 500 includes a WCSP in which a wiring layer 150 is laminated on an integrated circuit die 111.
- the wiring pattern illustrated in FIG. 3 or the like can be applied to this WCSP. This makes it possible to improve the reliability of the WCSP.
- the wiring pattern shown in FIG. 3 can be applied to the wiring layer 150 of the interposer board of the FBGA package that employs the flip chip connection by the C4 bump.
- the wiring pattern shown in FIG. 3 or the like can be applied to the wiring layer 150 of the interposer board of the FBGA package that employs the wire bonding connection.
- the wiring pattern shown in FIG. 3 can also be applied to the IC mounting board illustrated in FIG. 34.
- An integrated circuit die 111 is provided inside the wiring layer 150 of the IC mounting board, and the wiring pattern shown in FIG. 3 is applied to the wiring path arranged in the region facing the integrated circuit die 111.
- the segment is divided into a plurality of segments including a segment whose angle with the boundary line is less than a predetermined angle, and a signal line is wired across the boundary line. Therefore, the reliability of WCSP and the like can be improved.
- the technique according to the present disclosure can be applied to various products.
- the technology according to the present disclosure is realized as a device mounted on a moving body of any kind such as an automobile, an electric vehicle, a hybrid electric vehicle, a motorcycle, a bicycle, a personal mobility, an airplane, a drone, a ship, and a robot. You may.
- FIG. 35 is a block diagram showing a schematic configuration example of a vehicle control system, which is an example of a mobile control system to which the technique according to the present disclosure can be applied.
- the vehicle control system 12000 includes a plurality of electronic control units connected via the communication network 12001.
- the vehicle control system 12000 includes a drive system control unit 12010, a body system control unit 12020, an outside information detection unit 12030, an in-vehicle information detection unit 12040, and an integrated control unit 12050.
- a microcomputer 12051, an audio image output unit 12052, and an in-vehicle network I / F (interface) 12053 are shown as a functional configuration of the integrated control unit 12050.
- the drive system control unit 12010 controls the operation of the device related to the drive system of the vehicle according to various programs.
- the drive system control unit 12010 has a driving force generator for generating a driving force of a vehicle such as an internal combustion engine or a driving motor, a driving force transmission mechanism for transmitting the driving force to the wheels, and a steering angle of the vehicle. It functions as a control device such as a steering mechanism for adjusting and a braking device for generating braking force of the vehicle.
- the body system control unit 12020 controls the operation of various devices mounted on the vehicle body according to various programs.
- the body system control unit 12020 functions as a keyless entry system, a smart key system, a power window device, or a control device for various lamps such as headlamps, back lamps, brake lamps, turn signals or fog lamps.
- the body system control unit 12020 may be input with radio waves transmitted from a portable device that substitutes for the key or signals of various switches.
- the body system control unit 12020 receives inputs of these radio waves or signals and controls a vehicle door lock device, a power window device, a lamp, and the like.
- the vehicle outside information detection unit 12030 detects information outside the vehicle equipped with the vehicle control system 12000.
- the image pickup unit 12031 is connected to the vehicle outside information detection unit 12030.
- the vehicle outside information detection unit 12030 causes the image pickup unit 12031 to capture an image of the outside of the vehicle and receives the captured image.
- the vehicle outside information detection unit 12030 may perform object detection processing or distance detection processing such as a person, a vehicle, an obstacle, a sign, or a character on the road surface based on the received image.
- the image pickup unit 12031 is an optical sensor that receives light and outputs an electric signal according to the amount of the light received.
- the image pickup unit 12031 can output an electric signal as an image or can output it as distance measurement information. Further, the light received by the image pickup unit 12031 may be visible light or invisible light such as infrared light.
- the in-vehicle information detection unit 12040 detects the in-vehicle information.
- a driver state detection unit 12041 that detects a driver's state is connected to the vehicle interior information detection unit 12040.
- the driver state detection unit 12041 includes, for example, a camera that images the driver, and the in-vehicle information detection unit 12040 determines the degree of fatigue or concentration of the driver based on the detection information input from the driver state detection unit 12041. It may be calculated, or it may be determined whether or not the driver has fallen asleep.
- the microcomputer 12051 calculates the control target value of the driving force generator, the steering mechanism, or the braking device based on the information inside and outside the vehicle acquired by the vehicle exterior information detection unit 12030 or the vehicle interior information detection unit 12040, and the drive system control unit.
- a control command can be output to 12010.
- the microcomputer 12051 realizes ADAS (Advanced Driver Assistance System) functions including vehicle collision avoidance or impact mitigation, follow-up driving based on inter-vehicle distance, vehicle speed maintenance driving, vehicle collision warning, vehicle lane deviation warning, and the like. It is possible to perform cooperative control for the purpose of.
- ADAS Advanced Driver Assistance System
- the microcomputer 12051 controls the driving force generating device, the steering mechanism, the braking device, and the like based on the information around the vehicle acquired by the vehicle exterior information detection unit 12030 or the vehicle interior information detection unit 12040. It is possible to perform coordinated control for the purpose of automatic driving that runs autonomously without depending on the operation.
- the microcomputer 12051 can output a control command to the body system control unit 12020 based on the information outside the vehicle acquired by the vehicle outside information detection unit 12030.
- the microcomputer 12051 controls the headlamps according to the position of the preceding vehicle or the oncoming vehicle detected by the outside information detection unit 12030, and performs cooperative control for the purpose of anti-glare such as switching the high beam to the low beam. It can be carried out.
- the audio image output unit 12052 transmits an output signal of at least one of audio and an image to an output device capable of visually or audibly notifying information to the passenger or the outside of the vehicle.
- an audio speaker 12061, a display unit 12062, and an instrument panel 12063 are exemplified as output devices.
- the display unit 12062 may include, for example, at least one of an onboard display and a head-up display.
- FIG. 36 is a diagram showing an example of the installation position of the imaging unit 12031.
- the imaging unit 12031 As the imaging unit 12031, the imaging unit 12101, 12102, 12103, 12104, 12105 is provided.
- the image pickup units 12101, 12102, 12103, 12104, 12105 are provided, for example, at positions such as the front nose, side mirrors, rear bumpers, back doors, and the upper part of the windshield in the vehicle interior of the vehicle 12100.
- the image pickup unit 12101 provided on the front nose and the image pickup section 12105 provided on the upper part of the windshield in the vehicle interior mainly acquire an image in front of the vehicle 12100.
- the image pickup units 12102 and 12103 provided in the side mirror mainly acquire images of the side of the vehicle 12100.
- the image pickup unit 12104 provided in the rear bumper or the back door mainly acquires an image of the rear of the vehicle 12100.
- the image pickup unit 12105 provided on the upper part of the front glass in the vehicle interior is mainly used for detecting a preceding vehicle, a pedestrian, an obstacle, a traffic light, a traffic sign, a lane, or the like.
- FIG. 36 shows an example of the shooting range of the imaging units 12101 to 12104.
- the imaging range 12111 indicates the imaging range of the imaging unit 12101 provided on the front nose
- the imaging ranges 12112 and 12113 indicate the imaging range of the imaging units 12102 and 12103 provided on the side mirrors, respectively
- the imaging range 12114 indicates the imaging range.
- the imaging range of the imaging unit 12104 provided on the rear bumper or the back door is shown. For example, by superimposing the image data captured by the imaging units 12101 to 12104, a bird's-eye view image of the vehicle 12100 can be obtained.
- At least one of the image pickup units 12101 to 12104 may have a function of acquiring distance information.
- at least one of the image pickup units 12101 to 12104 may be a stereo camera including a plurality of image pickup elements, or may be an image pickup element having pixels for phase difference detection.
- the microcomputer 12051 has a distance to each three-dimensional object in the image pickup range 12111 to 12114 based on the distance information obtained from the image pickup unit 12101 to 12104, and a temporal change of this distance (relative speed with respect to the vehicle 12100). By obtaining can. Further, the microcomputer 12051 can set an inter-vehicle distance to be secured in advance in front of the preceding vehicle, and can perform automatic braking control (including follow-up stop control), automatic acceleration control (including follow-up start control), and the like. In this way, it is possible to perform coordinated control for the purpose of automatic driving or the like that autonomously travels without relying on the driver's operation.
- automatic braking control including follow-up stop control
- automatic acceleration control including follow-up start control
- the microcomputer 12051 converts three-dimensional object data related to a three-dimensional object into two-wheeled vehicles, ordinary vehicles, large vehicles, pedestrians, electric poles, and other three-dimensional objects based on the distance information obtained from the image pickup units 12101 to 12104. It can be classified and extracted and used for automatic avoidance of obstacles. For example, the microcomputer 12051 distinguishes obstacles around the vehicle 12100 into obstacles that are visible to the driver of the vehicle 12100 and obstacles that are difficult to see. Then, the microcomputer 12051 determines the collision risk indicating the risk of collision with each obstacle, and when the collision risk is equal to or higher than the set value and there is a possibility of collision, the microcomputer 12051 via the audio speaker 12061 or the display unit 12062. By outputting an alarm to the driver and performing forced deceleration and avoidance steering via the drive system control unit 12010, driving support for collision avoidance can be provided.
- At least one of the image pickup units 12101 to 12104 may be an infrared camera that detects infrared rays.
- the microcomputer 12051 can recognize a pedestrian by determining whether or not a pedestrian is present in the captured image of the imaging unit 12101 to 12104.
- recognition of a pedestrian is, for example, a procedure for extracting feature points in an image captured by an image pickup unit 12101 to 12104 as an infrared camera, and pattern matching processing is performed on a series of feature points indicating the outline of an object to determine whether or not the pedestrian is a pedestrian. It is done by the procedure to determine.
- the audio image output unit 12052 determines the square contour line for emphasizing the recognized pedestrian.
- the display unit 12062 is controlled so as to superimpose and display. Further, the audio image output unit 12052 may control the display unit 12062 so as to display an icon or the like indicating a pedestrian at a desired position.
- the above is an example of a vehicle control system to which the technique according to the present disclosure can be applied.
- the technique according to the present disclosure can be applied to, for example, the image pickup unit 12031 among the configurations described above.
- the semiconductor device 500 of FIG. 1 can be applied to the image pickup unit 12031. "etc).
- the present technology can have the following configurations. (1) Wiring layer and A semiconductor chip laminated in a predetermined area on the wiring surface of the wiring layer, and A semiconductor including a signal line whose angle formed when straddling the boundary line is less than a predetermined angle in at least one of two regions wired on the wiring surface and divided by any boundary line of the predetermined region. Device. (2) The signal line includes a predetermined number of segments and contains a predetermined number of segments. The semiconductor device according to (1) above, wherein any of the predetermined number of segments intersects the boundary line and the angle with respect to the boundary line is less than the predetermined angle. (3) The signal line includes a predetermined number of segments and contains a predetermined number of segments.
- any one of the predetermined number of segments substantially coincides with a predetermined point on the boundary line and the angle with respect to the boundary line is less than the predetermined angle.
- the signal line includes a plurality of segments including a specific segment whose angle with respect to the boundary line is less than the predetermined angle.
- the signal line includes a predetermined number of segments and contains a predetermined number of segments.
- the semiconductor device according to any one of (1) to (4), wherein the angle between all of the segments in a region where the distance from the boundary line is within a predetermined value and the boundary line is less than the predetermined angle.
- the signal line connects a pair of terminals to each other.
- the semiconductor device according to any one of (1) to (5) above, wherein the pair of terminals are connected to the wiring layer, and a redundant signal line having a wiring path different from that of the signal line is further wired.
- the semiconductor device is wired via a relay via provided on the boundary line.
- the semiconductor device (9) The semiconductor device according to (8) above, wherein the end face of the conductive material is tapered. (10) The semiconductor device according to (8) or (9) above, wherein the conductive material includes a plurality of land portions and linear line portions. (11)
- the wiring layer is The signal line area where the signal line is wired and The semiconductor device according to any one of (1) to (10) above, comprising a power supply ground region to which a power supply to the semiconductor chip and at least one of the grounds are supplied. (12) The semiconductor device according to (11), wherein at least one of a power line and a ground line is wired in a mesh shape in the power ground region. (13) The semiconductor device according to (11) above, wherein a solid pattern is formed in the power supply ground region.
- the semiconductor device according to any one of (11) to (13), wherein the angle formed by the boundary between the signal line region and the power supply ground region is different from 90 degrees.
- the wiring layer and the semiconductor chip are provided in a WCSP (Wafer level Chip Size Package).
- the wiring layer and the semiconductor chip are provided in an FBGA (Fine pitch Ball Grid Array) package.
- the wiring layer is formed in an interposer substrate.
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Abstract
Description
1.第1の実施の形態(セグメントの境界線に対する角度を所定角度未満とする例)
2.第2の実施の形態(導電性材料が、シード層に接する部分と非接触の部分とを有する例)
3.第3の実施の形態(境界線と交差するセグメントの幅を広くする例)
4.第4の実施の形態(境界線近傍の全てのセグメントの境界線に対する角度を所定角度未満とする例)
5.第5の実施の形態(配線パターンを冗長化する例)
6.第6の実施の形態(電源やグランドをメッシュ状またはベタ状とする例)
7.第7の実施の形態(半導体装置がPoP構造以外のパッケージを含む例)
8.移動体への応用例
[半導体装置の構成例]
図1は、本技術の第1の実施の形態における半導体装置500の断面図の一例である。この半導体装置500は、パッケージ200、300およびパッケージ基板400を含む。
次に、図4乃至図17を参照して、半導体装置500の製造方法について説明する。
上述の第1の実施の形態では、境界線との間の角度が所定角度未満のセグメントを含む信号線126-1などを配線していたが、誘電体層103や105において境界線近傍の外部端子に応力が集中することも考えられる。この第2の実施の形態の半導体装置500は、外部端子への応力を緩和する点において第1の実施の形態と異なる。
dXB<dXC ・・・式1
上述の第2の実施の形態では、導電性材料240にシード層245に接触する部分とシード層245とは非接触部分とを設けていたが、この構成でも応力を緩和しきれないことがある。この第2の実施の形態の第1の変形例の半導体装置500は、導電性材料240の端面をテーパー状とする点において第2の実施の形態と異なる。
上述の第2の実施の形態では、導電性材料240がライン部243およびランド部244を有するが、この構成では、応力を十分に緩和することができないことがある。この第2の実施の形態の第2の変形例の半導体装置500は、複数のランド部244を設けた点において第2の実施の形態と異なる。
上述の第1の実施の形態では、境界線との間の角度が所定角度未満の特定のセグメントを含む信号線126-1などを配線していたが、この構成では、応力を十分に緩和することができないことがある。この第3の実施の形態の半導体装置500は、境界線と交差するセグメントの幅を広くする点において、第1の実施の形態と異なる。
上述の第1の実施の形態では、配線パス内の1つのセグメントについて境界線との角度を所定角度未満としていたが、この構成では、応力を十分に緩和することができないことがある。この第4の実施の形態の半導体装置500は、境界線から所定距離内のセグメントの全てについて、境界線との角度を所定角度未満とした点において第1の実施の形態と異なる。
上述の第1の実施の形態では、境界線との間の角度が所定角度未満のセグメントを含む信号線126-1などを配線していたが、この構成では、半導体装置500の信頼性が不足するおそれがある。この第5の実施の形態の半導体装置500は、冗長化により信頼性を向上させた点において第1の実施の形態と異なる。
上述の第5の実施の形態では、冗長化により信頼性を向上させていたが、この構成では、応力に対する耐性が不足するおそれがある。この第5の実施の形態の変形例の半導体装置500は、中継ビアを設けることにより、応力耐性を向上させた点において第5の実施の形態と異なる。
上述の第1の実施の形態では、境界線との間の角度が所定角度未満のセグメントを含む信号線126-1などを配線していたが、この構成では、電源安定性や応力耐性が不足することがある。この第6の実施の形態の半導体装置500は、電源やグランドをメッシュ状やベタ状に敷き詰めた点において第1の実施の形態と異なる。
上述の第6の実施の形態では、矩形の電源グランド領域128および信号線領域129を配置していた。しかし、信号線が境界線に対して斜めに配線される場合は、配線パスが形成されないデッドスペースが生じ、配線効率が低下するおそれがある。この第6の実施の形態の変形例の半導体装置500は、配線効率を向上させた点において第6の実施の形態と異なる。
上述の第1の実施の形態では、パッケージ200にパッケージ300を積層したPoP構造に、図3に例示した配線パターンを適用していた。しかし、図3の配線パターンは、WCSP(Wafer level Chip Size Package)などのPoP構造以外のパッケージに適用することもできる。この第7の実施の形態の半導体装置500は、WCSPなどを含む点において第1の実施の形態と異なる。
本開示に係る技術(本技術)は、様々な製品へ応用することができる。例えば、本開示に係る技術は、自動車、電気自動車、ハイブリッド電気自動車、自動二輪車、自転車、パーソナルモビリティ、飛行機、ドローン、船舶、ロボット等のいずれかの種類の移動体に搭載される装置として実現されてもよい。
(1)配線層と、
前記配線層の配線面上の所定領域に積層された半導体チップと、
前記配線面上に配線されて前記所定領域の何れかの境界線により分断される2つの領域の少なくとも一方において前記境界線を跨ぐ際に成す角度が所定角度未満である信号線と
を具備する半導体装置。
(2)前記信号線は、所定数のセグメントを含み、
前記所定数のセグメントのいずれかは、前記境界線と交差し、前記境界線に対する角度が前記所定角度未満である
前記(1)記載の半導体装置。
(3) 前記信号線は、所定数のセグメントを含み、
前記所定数のセグメントのいずれかは、一端が前記境界線上の所定の点と略一致し、前記境界線に対する角度が前記所定角度未満である
前記(1)記載の半導体装置。
(4)前記信号線は、前記境界線に対する角度が前記所定角度未満の特定のセグメントを含む複数のセグメントを含み、
前記複数のセグメントのうち前記特定のセグメントの幅は、前記複数のセグメントのうち前記特定のセグメントに該当しないセグメントの幅よりも広い
前記(1)から(3)のいずれかに記載の半導体装置。
(5)前記信号線は、所定数のセグメントを含み、
前記境界線からの距離が所定値以内の領域の前記セグメントの全てと前記境界線との角度が前記所定角度未満である
前記(1)から(4)のいずれかに記載の半導体装置。
(6)前記信号線は、一対の端子を接続し、
前記配線層には、前記一対の端子を接続し、前記信号線と配線パスが異なる冗長信号線がさらに配線される
前記(1)から(5)のいずれかに記載の半導体装置。
(7)前記信号線は、前記境界線上に設けられた中継ビアを経由して配線される
前記(6)記載の半導体装置。
(8)外部端子と、前記外部端子に両面の一方が接続される導電性材料と、シード層とが設けられた誘電体層をさらに具備し、
前記導電性材料の両面の他方は、前記誘電体層に接する第1の部分と、前記シード層に非接触の第2の部分とを有する
前記(1)から(7)のいずれかに記載の半導体装置。
(9)前記導電性材料の端面は、テーパー状である
前記(8)記載の半導体装置。
(10)前記導電性材料は、複数のランド部と線状のライン部とを含む
前記(8)または(9)に記載の半導体装置。
(11)前記配線層は、
前記信号線が配線された信号線領域と、
前記半導体チップへの電源およびグランドの少なくとも一方が供給される電源グランド領域と
を備える前記(1)から(10)のいずれかに記載の半導体装置。
(12)前記電源グランド領域には、電源線およびグランド線の少なくとも一方がメッシュ状に配線される
前記(11)記載の半導体装置。
(13)前記電源グランド領域には、ベタパターンが形成される
前記(11)記載の半導体装置。
(14)前記信号線領域および前記電源グランド領域のそれぞれの境目と前記境界線とのなす角度は90度と異なる
前記(11)から(13)のいずれかに記載の半導体装置。
(15)前記配線層および前記半導体チップは、WCSP(Wafer level Chip Size Package)内に設けられる
前記(1)から(14)のいずれかに記載の半導体装置。
(16)前記配線層および前記半導体チップは、FBGA(Fine pitch Ball Grid Array) パッケージ内に設けられる
前記(1)から(14)のいずれかに記載の半導体装置。
(17)前記配線層は、インターポーザ基板内に形成される
前記(1)から(15)のいずれかに記載の半導体装置。
102 剥離層
103、105、121~124 誘電体層
104、125~127 配線パターン
106、306 貫通ビア
107 裏面再配線層
111 集積回路ダイ
112 接着剤
113 半導体基板
114 相互接続構造
115 パッド
116 パッシベーション膜
117 ダイコネクタ
118 誘電体材料
119 封止材
120 前面再配線層
128 電源グランド領域
129 信号線領域
126-1~126-6 信号線
131-1~131-4 導電性ビア
141 中継ビア
142 アンダーバンプメタル
143、314 導電性コネクタ
144 テープ
150 配線層
200、300 パッケージ
240 導電性材料
243 ライン部
244 ランド部
245 シード層
246 外部端子
302 基板
303、304、402 ボンドパッド
308-1、308-2 積層ダイ
400 パッケージ基板
500 半導体装置
600、601 パッケージ領域
12031 撮像部
Claims (17)
- 配線層と、
前記配線層の配線面上の所定領域に積層された半導体チップと
前記配線面上に配線されて前記所定領域の何れかの境界線により分断される2つの領域の少なくとも一方において前記境界線を跨ぐ際に成す角度が所定角度未満である信号線と
を具備する半導体装置。 - 前記信号線は、所定数のセグメントを含み、
前記所定数のセグメントのいずれかは、前記境界線と交差し、前記境界線に対する角度が前記所定角度未満である
請求項1記載の半導体装置。 - 前記信号線は、所定数のセグメントを含み、
前記所定数のセグメントのいずれかは、一端が前記境界線上の所定の点と略一致し、前記境界線に対する角度が前記所定角度未満である
請求項1記載の半導体装置。 - 前記信号線は、前記境界線に対する角度が前記所定角度未満の特定のセグメントを含む複数のセグメントを含み、
前記複数のセグメントのうち前記特定のセグメントの幅は、前記複数のセグメントのうち前記特定のセグメントに該当しないセグメントの幅よりも広い
請求項1記載の半導体装置。 - 前記信号線は、所定数のセグメントを含み、
前記境界線からの距離が所定値以内の領域の前記セグメントの全てと前記境界線との角度が前記所定角度未満である
請求項1記載の半導体装置。 - 前記信号線は、一対の端子を接続し、
前記配線層には、前記一対の端子を接続し、前記信号線と配線パスが異なる冗長信号線がさらに配線される
請求項1記載の半導体装置。 - 前記信号線は、前記境界線上に設けられた中継ビアを経由して配線される
請求項6記載の半導体装置。 - 外部端子と、前記外部端子に両面の一方が接続される導電性材料と、シード層とが設けられた誘電体層をさらに具備し、
前記導電性材料の両面の他方は、前記誘電体層に接する第1の部分と、前記シード層に非接触の第2の部分とを有する
請求項1記載の半導体装置。 - 前記導電性材料の端面は、テーパー状である
請求項8記載の半導体装置。 - 前記導電性材料は、複数のランド部と線状のライン部とを含む
請求項8記載の半導体装置。 - 前記配線層は、
前記信号線が配線された信号線領域と、
前記半導体チップへの電源およびグランドの少なくとも一方が供給される電源グランド領域と
を備える請求項1記載の半導体装置。 - 前記電源グランド領域には、電源線およびグランド線の少なくとも一方がメッシュ状に配線される
請求項11記載の半導体装置。 - 前記電源グランド領域には、ベタパターンが形成される
請求項11記載の半導体装置。 - 前記信号線領域および前記電源グランド領域のそれぞれの境目と前記境界線とのなす角度は90度と異なる
請求項11記載の半導体装置。 - 前記配線層および前記半導体チップは、WCSP(Wafer level Chip Size Package)内に設けられる
請求項1記載の半導体装置。 - 前記配線層および前記半導体チップは、FBGA(Fine pitch Ball Grid Array) パッケージ内に設けられる
請求項1記載の半導体装置。 - 前記配線層は、インターポーザ基板内に形成される
請求項1記載の半導体装置。
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| TWI880667B (zh) * | 2024-03-08 | 2025-04-11 | 力成科技股份有限公司 | 堆疊式半導體封裝的打線結構及其打線方法 |
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| JP2005277429A (ja) * | 2005-04-13 | 2005-10-06 | Hitachi Ltd | 半導体装置 |
| WO2013057867A1 (ja) * | 2011-10-21 | 2013-04-25 | パナソニック株式会社 | 半導体装置 |
| JP2018026484A (ja) * | 2016-08-12 | 2018-02-15 | 富士通株式会社 | パッケージ方法及びパッケージ構造 |
| US9922964B1 (en) | 2016-09-19 | 2018-03-20 | Taiwan Semiconductor Manufacturing Co., Ltd. | Package structure with dummy die |
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| US10475768B2 (en) * | 2016-09-09 | 2019-11-12 | Taiwan Semiconductor Manufacturing Company | Redistribution layers in semiconductor packages and methods of forming same |
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| JP6019367B2 (ja) * | 2015-01-13 | 2016-11-02 | 株式会社野田スクリーン | 半導体装置 |
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2020
- 2020-11-25 JP JP2020194786A patent/JP2022083468A/ja active Pending
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- 2021-10-01 US US18/253,422 patent/US20240006294A1/en active Pending
- 2021-10-01 WO PCT/JP2021/036399 patent/WO2022113519A1/ja not_active Ceased
- 2021-10-01 EP EP21897497.0A patent/EP4254483A4/en not_active Withdrawn
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| JP2002170826A (ja) * | 2000-11-30 | 2002-06-14 | Hitachi Ltd | 半導体装置およびその製造方法 |
| JP2005277429A (ja) * | 2005-04-13 | 2005-10-06 | Hitachi Ltd | 半導体装置 |
| WO2013057867A1 (ja) * | 2011-10-21 | 2013-04-25 | パナソニック株式会社 | 半導体装置 |
| JP2018026484A (ja) * | 2016-08-12 | 2018-02-15 | 富士通株式会社 | パッケージ方法及びパッケージ構造 |
| US10475768B2 (en) * | 2016-09-09 | 2019-11-12 | Taiwan Semiconductor Manufacturing Company | Redistribution layers in semiconductor packages and methods of forming same |
| US9922964B1 (en) | 2016-09-19 | 2018-03-20 | Taiwan Semiconductor Manufacturing Co., Ltd. | Package structure with dummy die |
| US10304801B2 (en) * | 2016-10-31 | 2019-05-28 | Taiwan Semiconductor Manufacturing Company, Ltd. | Redistribution layers in semiconductor packages and methods of forming same |
| JP2019075444A (ja) * | 2017-10-13 | 2019-05-16 | キヤノン株式会社 | 回路基板 |
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Also Published As
| Publication number | Publication date |
|---|---|
| JP2022083468A (ja) | 2022-06-06 |
| US20240006294A1 (en) | 2024-01-04 |
| EP4254483A4 (en) | 2024-06-05 |
| EP4254483A1 (en) | 2023-10-04 |
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