WO2005004565A1 - 実装電極、パッケージ、デバイスおよびデバイスの製造方法 - Google Patents
実装電極、パッケージ、デバイスおよびデバイスの製造方法 Download PDFInfo
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- WO2005004565A1 WO2005004565A1 PCT/JP2004/009699 JP2004009699W WO2005004565A1 WO 2005004565 A1 WO2005004565 A1 WO 2005004565A1 JP 2004009699 W JP2004009699 W JP 2004009699W WO 2005004565 A1 WO2005004565 A1 WO 2005004565A1
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- Prior art keywords
- bonding
- mounting
- electrode
- conductive
- electronic component
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Classifications
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- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03B—GENERATION OF OSCILLATIONS, DIRECTLY OR BY FREQUENCY-CHANGING, BY CIRCUITS EMPLOYING ACTIVE ELEMENTS WHICH OPERATE IN A NON-SWITCHING MANNER; GENERATION OF NOISE BY SUCH CIRCUITS
- H03B5/00—Generation of oscillations using amplifier with regenerative feedback from output to input
- H03B5/30—Generation of oscillations using amplifier with regenerative feedback from output to input with frequency-determining element being electromechanical resonator
- H03B5/32—Generation of oscillations using amplifier with regenerative feedback from output to input with frequency-determining element being electromechanical resonator being a piezoelectric resonator
- H03B5/36—Generation of oscillations using amplifier with regenerative feedback from output to input with frequency-determining element being electromechanical resonator being a piezoelectric resonator active element in amplifier being semiconductor device
-
- 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
- H05K1/111—Pads for surface mounting, e.g. lay-out
-
- 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
- H05K1/03—Use of materials for the substrate
- H05K1/0306—Inorganic insulating substrates, e.g. ceramic, glass
-
- 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
- H05K2201/03—Conductive materials
- H05K2201/0332—Structure of the conductor
- H05K2201/0335—Layered conductors or foils
- H05K2201/0338—Layered conductor, e.g. layered metal substrate, layered finish layer or layered thin film adhesion layer
-
- 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
- H05K2201/09—Shape and layout
- H05K2201/09209—Shape and layout details of conductors
- H05K2201/09654—Shape and layout details of conductors covering at least two types of conductors provided for in H05K2201/09218 - H05K2201/095
- H05K2201/09736—Varying thickness of a single conductor; Conductors in the same plane having different thicknesses
-
- 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
- H05K2201/09—Shape and layout
- H05K2201/09818—Shape or layout details not covered by a single group of H05K2201/09009 - H05K2201/09809
- H05K2201/09845—Stepped hole, via, edge, bump or conductor
-
- 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
- H05K2201/10613—Details of electrical connections of non-printed components, e.g. special leads
- H05K2201/10621—Components characterised by their electrical contacts
- H05K2201/10636—Leadless chip, e.g. chip capacitor or resistor
-
- 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
- H05K2203/00—Indexing scheme relating to apparatus or processes for manufacturing printed circuits covered by H05K3/00
- H05K2203/04—Soldering or other types of metallurgic bonding
- H05K2203/049—Wire bonding
-
- 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
- H05K3/22—Secondary treatment of printed circuits
- H05K3/24—Reinforcing of the conductive pattern
- H05K3/245—Reinforcing conductive patterns made by printing techniques or by other techniques for applying conductive pastes, inks or powders; Reinforcing other conductive patterns by such techniques
-
- 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
- H05K3/3431—Leadless components
- H05K3/3442—Leadless components having edge contacts, e.g. leadless chip capacitors, chip carriers
-
- 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
- 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
-
- 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
- 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
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P70/00—Climate change mitigation technologies in the production process for final industrial or consumer products
- Y02P70/50—Manufacturing or production processes characterised by the final manufactured product
Definitions
- the present invention relates to a mounting electrode, a package, a device, and a method for manufacturing the device, and more particularly to a conductive material suitable for preventing problems caused by a conductive bonding material flowing out when an electronic component is bonded and fixed with the conductive bonding material. It relates to methods for manufacturing patterns, packages, devices and devices.
- a piezoelectric device As a device for surface mounting components, for example, there is a piezoelectric device.
- An example of this piezoelectric device is one in which a mount electrode and a mounting electrode are formed on an insulating substrate in a package, a piezoelectric vibrating reed is mounted on the mount electrode, and electronic components are surface-mounted on the mounting electrode.
- Another example of a piezoelectric device is one in which a mounting electrode having a mounting electrode and a bonding region is formed on an insulating substrate in a package.
- the piezoelectric vibrating reed is mounted on the mount electrode, and the electronic component is surface-mounted on the mounted electrode.
- the piezoelectric vibrating reed is mounted on the mounting electrode, the electronic component is mounted on the mounting electrode excluding the bonding area, and the electronic component and the mounting electrode in the bonding area are bonded by wire bonding.
- the mount electrode and the mounting electrode are formed by forming a single metallized layer by thick film printing or the like and then applying a metal plating.
- the piezoelectric vibrating reed and the electronic component are bonded and fixed to the mount electrode and the mounting electrode using a conductive adhesive as an example of a conductive bonding material. This bonding is performed by transferring or applying a conductive adhesive to the mounting electrodes using a dispenser, and then mounting the electronic component.
- FIGS. 12 (a) is an explanatory view of a piezoelectric device according to Japanese Patent Application Laid-Open No. 7-283653, and FIG. FIG.
- FIG. 1 is an explanatory diagram of a piezoelectric device according to Japanese Unexamined Patent Application Publication No. 2000-209,004. These piezoelectric devices consist of a single layer on the package base 102, which becomes the insulating substrate 101.
- the terminal 105 of the piezoelectric vibrator 104 is bonded to the bonding area provided on the metallized layer 103 with a conductive bonding material, and the metallized layer 103 is formed.
- This is a structure in which wire bonding is performed from a bonding region 106 provided on the semiconductor device 103 to a semiconductor integrated circuit 107 mounted on another conductive pattern.
- piezoelectric devices mounted on electronic devices have also become smaller and thinner.
- the distance between the electrodes is also small.
- a piezoelectric device in which a distance between a mounting electrode and a mounting electrode in a bonding area is about 0.4 mm.
- a conductive adhesive is applied using the above-described transfer or dispenser, and the electronic components are bonded and fixed.
- it is difficult to control and control the amount of the conductive adhesive so that it took time and cost to apply an accurate amount.
- the conductive adhesive applied to the mounting electrodes If the amount of the conductive adhesive applied to the mounting electrodes is large, the conductive adhesive flows out of the bonding surface between the mounting electrode and the bonding electrode of the electronic component due to the action of surface tension or the like, and the mounting electrodes are separated from each other. In some cases, short-circuiting occurred and covered the bonding area, hindering wire bonding. In addition, the range of the appropriate amount of the conductive adhesive was very narrow, and the production was difficult.
- FIG. 13 is an explanatory diagram of a conventional technique for preventing a short circuit between mounted electrodes.
- the first conventional technique is to laminate an insulated substrate 11 1 a with a partially insulated substrate 11 1 b to form a partially insulated substrate 11 1 b.
- 1 1 1 is formed.
- a mounting electrode 1 15 lower than the height of the recess 1 1 3 is formed in the recess 1 1 3, and an electronic component 1 1 9 is attached to the mounting electrode 1 1 5 via a conductive adhesive 1 1 7. (See Figure 13 (a)).
- the conductive adhesive 1 17 applied on the mounting electrode 1 15 passes over the step of the recess 1 13 and the other recesses. It does not flow into the part 113 and prevents short-circuiting between the mounting electrodes 115 (Japanese Patent Laid-Open Publication No. 2000-2004-1990) Information).
- Japanese Patent Laid-Open Publication No. 2000-2004-1990 Japanese Patent Laid-Open Publication No. 2000-2004-1990
- a pair of mounting electrodes 125 for mounting electronic components 123 on an insulating substrate 121 is provided.
- the insulating substrate 122 has a recess 127 adjacent to the pair of mounting electrodes 125.
- the insulating substrate 1 21 provided with the recess 1 2 7 is formed by laminating a planar insulating substrate 1 2 1 a and a planar insulating substrate 1 2 1 b partially provided with a hole (see FIG. 13 (b)).
- a groove is formed on the side surface of a columnar piezoelectric vibrating reed, and electrodes are formed on both sides of the groove.
- a support member made of a conductive material is provided at the center of the electrode, that is, at the center in the length direction of the piezoelectric vibrating reed. Then, the support member and the mounting electrode provided on the insulating substrate are joined and fixed with a conductive adhesive, and the insulating adhesive is supplied between the support members to form a piezoelectric device.
- the conductive adhesive is interrupted by the insulating adhesive to prevent short-circuiting between the mounting electrodes (Japanese Patent Laid-Open No. 11-112). No. 279).
- a pair of mounting electrodes 135 for mounting the electronic component 133 is formed on the insulating substrate 131.
- the mounting electrode 13 5 has a cutout portion 13 7 on the outer side opposite to the side where the mounting electrodes 13 5 face each other, facing the inside of the mounting electrode 13 5. (See Figure 13 (c)).
- an insulating substrate is formed by laminating a planar insulating substrate and a planar insulating substrate provided with holes. Must be formed, compared to a single-layer insulating substrate There is a problem that the cost increases and the manufacturing process increases. Also, in the invention described in Japanese Patent Application Laid-Open No. H11-111, the bonding member is provided on the piezoelectric vibrating piece to support the piezoelectric vibrating piece, so that the supporting portion of the piezoelectric vibrating piece is complicated. However, there is a problem that the manufacturing cost is higher than that of a conventional piezoelectric vibrating piece or the like. Further, in the invention described in Japanese Patent Application Laid-Open No. 2000-138338, the cutout portion is provided in the mounting electrode, so that the area for bonding the electronic components is reduced, and the bonding strength is reduced. There is a problem that becomes smaller.
- the bonding area is covered with a conductive bonding material, wire bonding may not be performed in some cases. Even if wire bonding is possible, the conductive material formed between the bonding wire and the bonding area may not be formed. There is a problem that the reliability of bonding changes depending on the purity of the alloy layer of the conductive bonding material or the presence or absence of impurities. That is, even when wire bonding is performed, there is a problem in that the bonding strength between the bonding wire and the conductive pattern is reduced, and there is also a problem in that electrical conduction cannot be obtained due to aging even when apparently bonded. Further, there is a problem that even if there is a bonding strength between the bonding wire and the bonding region, there is a conduction resistance and a change in capacitance occurs.
- the present invention has been made to solve the above problems, and has been made to eliminate a bonding area. Even if the allowable range of the amount of the conductive adhesive used for bonding and fixing the mounting electrode and the electronic component is widened, there is no short circuit between the mounting electrodes, and the wire bonding electrode or the bonding area is not covered. It is an object of the present invention to provide a mounting electrode, a package, a device, and a method for manufacturing the device, which can be easily manufactured at low cost. Disclosure of the invention
- the mounting electrode of the present invention is a mounting electrode provided on an insulating substrate and having a conductive pattern for electrically connecting electronic components, wherein the conductive pattern is formed of a plurality of laminated metallization layers.
- the conductive pattern is larger than an area of a bonding electrode provided on the electronic component.
- the conductive patterns are stacked in a step shape and formed in a pyramid shape.
- the conductive patterns on the side where the mounting electrodes face each other are stacked in a stepwise manner.
- the conductive electrodes are stacked such that the side surfaces of the conductive pattern on the side where the mounting electrodes face each other are aligned.
- the thickness of the metallized layer formed by laminating the mounting electrodes is greater than 40 ⁇ .
- the conductive pattern has a bonding region for bonding a bonding wire, and a metal bonding layer is laminated on the bonding region to form a wire bonding electrode.
- the wire bonding electrode is characterized in that a side of a bonding region for bonding an electronic component via a conductive bonding material is formed in a convex shape.
- the conductive pattern includes: a bonding region for bonding a bonding wire; and a bonding region for bonding an electronic component via a conductive bonding material.
- a projection is provided to prevent the bonding material from flowing into the bonding area.
- the bonding region is formed by a wire bond with a laminated metallized layer. Characterized in that a bearing electrode is formed.
- the wire bonding electrode is characterized in that the side of the bonding region is formed in a convex shape.
- the convex portion is formed in a U-shape in which the side of the joining region is closed.
- the package of the present invention is characterized in that the above-mentioned mounting electrode is provided on a package base.
- the package base is formed of ceramic.
- the device of the present invention is characterized by using the above-mentioned package and bonding and fixing an electronic component to a mounting electrode provided on a package base via a conductive adhesive.
- the conductive adhesive is an adhesive or a solder containing a conductive filler.
- the device of the present invention uses the above-described package and joins an electronic component to the joining region provided on the package base using a conductive joining material, and performs wire bonding on the wire bonding electrode or the bonding region.
- the device is a piezoelectric device on which a piezoelectric vibrating reed or a surface acoustic wave resonator is mounted.
- a method for manufacturing a device includes the steps of: laminating a metallized layer on an insulating substrate to form a mounting electrode having a conductive pattern for bonding an electronic component; and electronic component via a conductive adhesive to the mounting electrode. And mounting step. Further, the step of forming the mounting electrode includes a step of forming a wire bonding electrode by laminating a metallization layer on a part of the conductive pattern and / or a step of bonding a bonding region for bonding electronic components to a bonding wire.
- the step of mounting the electronic component includes the steps of: bonding the electronic component to the bonding region using a conductive bonding material; Applying a wire pond to the binding electrode.
- FIG. 1 is a diagram illustrating a planar shape of a mounting electrode according to a first embodiment.
- FIG. 2 is a diagram illustrating a planar shape of a mounting electrode according to the first embodiment.
- FIG. 3 is a cross-sectional view of a piezoelectric oscillator.
- [4] (a) ⁇ (C) are diagrams illustrating a first through third variant Katachirei of mounting electrodes according to the first embodiment.
- FIG. 5 is a diagram illustrating a fifth modification of the mounting electrode according to the first embodiment.
- FIG. 6 is a diagram illustrating a planar shape of a bonding region according to the second embodiment.
- FIG. 7 is a diagram illustrating a side surface shape of a conductive pattern according to a third embodiment.
- FIG. 8 is a diagram illustrating a planar shape of a conductive pattern according to a third embodiment.
- FIGS. 9A to 9C are diagrams illustrating a planar shape of a wire bonding electrode according to a third embodiment.
- FIG. 10 is a sectional view of a piezoelectric oscillator.
- FIGS. 11A to 11E are diagrams illustrating a planar shape of a bonding region according to a fourth embodiment.
- FIGS. 12A and 12B are explanatory diagrams of a piezoelectric device according to the related art.
- FIGS. 13A to 13C are diagrams illustrating a conventional technique for preventing short-circuiting between mounted electrodes.
- FIG. 1 is a diagram illustrating a side shape of the mounting electrode according to the first embodiment
- FIG. 2 is a diagram illustrating a plan shape of the mounting electrode.
- a mounting electrode 13 made of a conductive pattern for electrically bonding electronic components 15 is formed on an insulating substrate 11 made of ceramic, resin, or the like.
- the mounting electrode 13 is formed in accordance with a bonding electrode (not shown) provided on the bottom surface of the electronic component 15.
- a configuration in which a metal thin film (not shown) is formed on a tiered layer 17 which is laminated in a step-like manner to form a viramid, and a gap is formed between the surface of the insulating substrate 11 and the bottom of the electronic component 15. It is.
- the metallized layer 17 has a first metallized layer 17 a formed on an insulating substrate 11, a smaller surface area than the first metallized layer 17 a, and a larger surface area than the surface area of the bonding electrode. Alternatively, it is a two-layer structure in which the second metallized layer 17b having the same size as the surface area is formed. Note that the number of metallized layers 17 is not limited to two, and a plurality of metallized layers may be stacked according to the usage.
- the metallized layer 17 is metallized by thick film printing or a film forming method, for example, to form a metallized layer 17 of a metal such as tungsten or molybdenum.
- the thickness of this metallized layer is, for example, about 20 im, and the thickness when two metallized layers are laminated is about 40 / zm.
- the metal thin film is formed by plating, for example, by applying nickel plating and then applying gold plating.
- a conductive adhesive 19 as a conductive bonding material on the metal thin film of the mounting electrode 13 using a dispenser.
- the electronic component 15 is placed and fixedly bonded.
- the electronic component 15 is a surface mount type, and the type may be appropriately selected and mounted according to a device, and examples thereof include a resistor, a capacitor, an inductor, and a varicap.
- the conductive adhesive 19 an adhesive containing a conductive filler such as silver, gold, aluminum or nickel may be used, and the material of the filler is appropriately determined in consideration of the material of the metal thin film and the like. Just select. Solder can also be used in addition to the adhesive containing the filler.
- the surface area of the metal thin film is larger than the surface area of the bonding electrode, when the mounting electrode 13 is formed so that the metal thin film protrudes outside the electronic component 15 from the bonding electrode, the side surface of the bonding electrode A side fillet is formed. With this side fillet, the bonding between the mounting electrode 13 and the bonding electrode of the electronic component 15 can be easily confirmed from the appearance.
- a device in which a plurality of electronic components are mounted inside the package can be obtained.
- a piezoelectric device can be formed by mounting a piezoelectric vibrating reed or a surface acoustic wave resonator inside a package
- a piezoelectric oscillator can be formed by mounting a piezoelectric vibrating reed on a package and a semiconductor integrated circuit.
- Figure 3 shows a cross-sectional view of the piezoelectric oscillator.
- the package base 52 of the piezoelectric oscillator 50 is formed by stacking a plurality of frame-shaped ceramic insulating substrates 52b and 52c having different frame widths on a flat ceramic insulating substrate 52a.
- the mounting electrode 13 described above is provided on the lower inner side of the package base 52, and the electronic component 15 is mounted on the mounting electrode 13.
- a mount electrode 56 for mounting the piezoelectric vibrating reed 54 is formed, and the piezoelectric vibrating reed 54 is mounted via a conductive adhesive 58.
- a lid 62 for sealing the package 60 is joined to the upper stage, and the piezoelectric oscillator 50 is configured as described above.
- the mounting electrode 56 can also be formed by laminating a metallized layer.
- the mounting electrode 13 having such a configuration can be used for bonding and fixing an electronic component surface-mounted on an insulating substrate such as a printed circuit board or a hybrid integrated circuit.
- an insulating substrate such as a printed circuit board or a hybrid integrated circuit.
- the conductive adhesive 19 applied on the mounting electrode 13 is large and the conductive adhesive 19 protrudes from the bonding surface between the bonding electrode 13 and the mounting electrode 13 of the electronic component 15.
- the distance is large, the influence of surface tension is very small, and the conductive adhesive 19 does not flow toward the other mounting electrode 13. Therefore, the conductive adhesive protruding from the mounting electrode 13 hardens in the vicinity of the mounting electrode 13 and does not flow toward the other mounting electrode 13.
- the amount of the conductive adhesive 19 to be applied can be used in a wide range, and the conductive adhesive 19 can be applied using a conventional transfer or dispenser. Therefore, the conductive adhesive 19 flowing out of the mounting electrode]: 3 does not come into contact with the other mounting electrode 13, so that a short circuit between the mounting electrodes 13 can be prevented.
- the surface of the second metallized layer is larger than or equal to the surface area of the bonding electrode provided on the electronic component, the strength for securely bonding the mounting electrode and the electronic component is provided. Can be kept.
- the mounting electrode 13 is formed by laminating the metallization layer 17 on the single-layer insulating substrate 11, a short circuit between the mounting electrodes 13 can be prevented.
- the manufacturing process is simpler and the manufacturing cost can be reduced. Also, the reliability of the device can be improved.
- the insulating substrate 11 is not limited to a single layer, and mounting electrodes can be provided on an insulating substrate formed by laminating a plurality of planar insulating substrates depending on the intended use of the device.
- FIG. 4 shows a modification of the mounting electrode 13.
- a side surface 71 on which the mounting electrodes 70 face each other and a side surface 72 that is transverse to the side surface are formed in a stepwise manner.
- the side surface 76 on which the mounting electrodes 75 face each other and the rear side surface 77 opposite to this side surface are formed in a step-like manner.
- the third modified example shown in FIG. 4 shows a modification of the mounting electrode 13.
- the mounting electrode 80 is provided on the side surface 81 facing each other and on the rear side surface 82 opposite to this side surface, with the mounting electrode 80 facing the inside of the mounting electrode 80.
- the recesses 83a and 83b are provided in the metallized layer 84.
- the recess 83 a provided on the side where the mounting electrodes 80 are opposed to each other is provided below the electronic component 85 mounted on the mounting electrode 80, and the bonding electrode ( (Not shown) and the mounting electrode 80 are formed so as to extend to a position just before the joint.
- the recessed portion 83 b provided on the rear side surface 82 is formed to extend to a position where the bonding electrode and the mounting electrode 80 of the electronic component 85 are bonded.
- FIG. 5 shows a fifth modification of the mounting electrode.
- the fifth modification only the metallized layer on the side surface where the mounting electrodes 21 face each other is formed in a step-like shape.
- the mounting electrodes 21 face each other, for example, when mounting the electronic component 15 on the insulating substrate 11 with a plurality of mounting electrodes 21, only the side surfaces of the mounting electrodes 21 facing the metallized layer 23 are stepped.
- the other portions may be the same as the configuration of the above-described viramid-shaped mounting electrode 13.
- FIG. 6 is a diagram illustrating a side surface shape of the mounting electrode according to the second embodiment.
- the mounting electrodes 31 are laminated by aligning the side surfaces of the metallized layers 33 facing each other, and forming a metal thin film (not shown) on the metallized layers 33 so as to be in contact with the surface of the insulating substrate 35. It is configured to leave a space with the bottom of the electronic component 37.
- the thickness of the metallized layer 33 there is a single layer having a thickness of about 20 ⁇ m, and the thickness when two metallized layers are stacked is about 40 ⁇ .
- the metallized layer 33 may be formed by laminating a plurality of metallized layers according to the usage.
- the mounting electrodes 31 are formed by laminating the metallized layers 33, the distance between the surface of the insulating substrate 35 and the bottom surface of the electronic component 37 can be increased. Even if the electronic component 37 is bonded and fixed to the mounting electrode 31, the gap between the surface of the insulating substrate 35 and the electronic component 37 is large, so that the electronic component 37 acts between the surface of the insulating substrate 35 and the electronic component 37. The effect of the surface tension is very small, and the conductive adhesive 39 applied on the mounting electrode 31 does not flow toward the other mounting electrode 31. Also, a large amount of the conductive adhesive 39 is applied to bond and fix the electronic component 37 to the mounting electrode 31, and the bonding electrode (not shown) of the electronic component 37 and the mounting electrode 31 are bonded.
- the metallized layer 33 is composed of the surface of the insulating substrate 35, the bottom surface of the electronic component 37, and the side surfaces of the mounting electrodes 31.
- the conductive adhesive which has a large volume and protrudes from the bonding surface is hardened near the mounting electrode and does not flow toward the other mounting electrode 31. This The amount of the conductive adhesive 39 to be applied can be used in a wide range, and short-circuiting between the mounting electrodes 31 can be prevented.
- FIG. 7 shows a side view of the conductive pattern according to the third embodiment
- FIG. 8 shows a plan view of the conductive pattern.
- the conductive pattern 10 mainly includes a first metallized layer 14 formed on the insulating substrate 12 and a second metallized layer 16 formed on a part of the upper surface of the first metallized layer 14. I have.
- the first metallization layer 14 has a configuration in which a metal such as tungsten or molybdenum is metallized using thick film printing or the like.
- a bonding region 20 for bonding the electronic component 18 and a wire bonding electrode 22 for bonding the bonding wire 26 by pressure are provided on the upper surface of the first metallized layer 14.
- the bonding region 20 and the wire bonding electrode 22 are formed in accordance with the arrangement of the electronic components 18 to be bonded.
- the wire bonding electrode 22 is formed by laminating a second metallized layer 16 on the upper surface of the first metallized layer 14 where a wire bond is to be made, and providing a metal thin film (not shown) on the upper surface of the second metallized layer 16. It is a configuration consisting of The second metallized layer 16 is formed in the same manner as the first metallized layer 14. The thickness of the second metallized layer 16 may be appropriately changed in consideration of the distance from the bonding region 20 and the thickness of the conductive bonding material 24 flowing from the bonding region 20.
- the metal thin film is formed, for example, by applying nickel plating and then applying gold plating.
- FIG. 9 is an explanatory view of the planar shape of the bonding electrode 22.
- the second metallization layer 16 formed on the first metallization layer 14 has, for example, a rectangular shape (FIG. 9A), and has a convex shape on the side (left side in the drawing) of the bonding region for bonding the electronic components 18.
- a pentagonal shape (FIG. 9 (b)) or a circular shape (FIG. 9 (c)) is formed, whereby the wire bonding electrode 22 is formed.
- the bonding area 20 is formed by laminating a second metallization layer 16 on the upper surface of the first metallization layer 14 where the electronic component 18 is bonded, and a metal thin film (not shown) is formed on the second metallization layer 16. Is provided. This may be formed in the same manner as the wire bonding electrode 22 described above. Also, the bonding region 20 is the first metallized layer 1 4, a configuration in which a metal thin film is directly provided on the top surface may be adopted.
- the electronic component 18 in order to join the electronic component 18 onto the conductive pattern 10, transfer or apply a conductive joining material 24 onto the joining region 20 using a dispenser, and then place the electronic component 18 thereon. Bonded and fixed.
- the conductive bonding material 24 flows out of the bonding surface between the bonding region 20 and the electronic component 18 and flows along the conductive pattern 10 toward the wire bonding electrode 22. Since the second metallized layer 16 is thicker than the thickness of the material, the conductive bonding material does not climb over the second metallized layer 16 and cover the surface of the wire bonding electrode 22.
- the electronic component 18 may be appropriately selected and mounted depending on the device, and examples thereof include a resistor, a capacitor, an inductor, and a barrier.
- the bonding wire 26 is pressure-bonded using a bonding machine or the like.
- the conductive pattern 10 having such a configuration is formed on a package base made of ceramic or the like, a device in which a plurality of electronic components 18 are mounted inside the package can be obtained.
- a piezoelectric device can be formed by mounting a piezoelectric vibrating reed or a surface acoustic wave resonator inside the package, and a piezoelectric oscillator can be formed by mounting the piezoelectric vibrating reed inside the package and a semiconductor integrated circuit. can do.
- FIG. 10 shows a cross-sectional view of the piezoelectric oscillator.
- the package base 32 of the piezoelectric oscillator 30 is formed by laminating a plurality of frame-type ceramic insulating substrates 32b and 32c having different frame widths on a flat ceramic insulating substrate 32a.
- a plurality of the conductive patterns 10 described above are formed on the innermost lower stage of the package base 32, and the electronic component 18a is bonded and fixed to the bonding region 20 on the conductive pattern 10 using a conductive bonding material. ing. Further, a bonding wire 26 electrically connected to another electronic component 18 b is bonded to the wire bonding electrode 22.
- a mount electrode 36 on which the piezoelectric vibrating reed 34 is mounted is formed in the middle stage of the package base 32, and the piezoelectric vibrating reed 34 is bonded and fixed using a conductive bonding material 38.
- a lid 40 for sealing the inside of the package base 32 is joined to the upper stage. like this
- a piezoelectric oscillator 30 is formed by the configuration.
- the surface of the wire bonding electrode 22 is It can be provided at a position higher than the upper surface of the metallized layer 14. Even if the conductive bonding material 24 for bonding and bonding the bonding region 20 and the electronic component 18 flows out along the conductive pattern 10, the thickness of the wire bonding electrode 22 becomes larger than the thickness of the conductive bonding material flowing out. Since the surface is at a high position, the conductive bonding material does not climb over the second metallized layer 16 and cover the surface of the wire bonding electrode 22.
- the conductive bonding material 24 that has flowed out does not cover the wire bonding electrode 22.
- the application amount of 4 can be used in a wide range. Therefore, wire bonding can be performed on the wire bonding electrode 22 regardless of the amount of the conductive bonding material 24 applied or the distance between the bonding region 20 and the wire bonding electrode 22.
- the conductive bonding material 24 is prevented from covering the surface of the wire bonding electrode 22, only the second metallized layer 16 is provided on the first metallized layer 14, so that it can be manufactured easily and at low cost. can do.
- the conductive bonding material flowing out along the conductive pattern 10 is formed. It can be divided into left and right with low resistance, and the surface of the wire bonding electrode 22 is not covered with the conductive bonding material 24.
- FIG. 11 is a plan view of a conductive pattern according to the fourth embodiment. This figure shows only the vicinity of the bonding area.
- the conductive pattern 150 mainly includes a first metallized layer 152 formed on an insulating substrate (not shown), and a bonding region (not shown) and a bonding region 15 formed on an upper surface of the first metallized layer 152. 4, and a metal thin film (not shown) is formed on these regions.
- a convex portion 156 crossing the width direction of the first metallized layer 152 is provided on the metallization layer 52, and the above-described bonding region side and bonding region 154 side are divided.
- One or a plurality of the convex portions 156 may be provided, and may be a straight line or a shape formed in a convex shape toward the joining region (see FIGS. 11A to 11C). ).
- the number of the protrusions 156 provided on the first metallization layer 152 may be appropriately determined according to the distance between the bonding region and the bonding region or the amount of the conductive bonding material.
- a convex portion 156 may be formed in a U-shape having an opening on the opposite side (right side in the drawing) to the bonding region and provided so as to surround the bonding region 154 (see FIG. 11D). ). Since the U-shaped convex portion 156 has an opening on one side, the bonding wire can be pressure-bonded by a bonding machine, and does not adversely affect the bonded wire.
- the height of the convex portion 156 may be appropriately changed in consideration of the distance from the bonding region and the height of the conductive bonding material flowing from the bonding region.
- the first metallization layer 152 and the projections 156 of the conductive pattern 150 thus configured are formed by metallizing a metal such as tungsten or molybdenum using thick film printing or the like. ing.
- the metal thin film is formed, for example, by applying nickel plating and then applying gold plating.
- the package can be formed by providing the above-described conductive pattern 150 on a package base such as ceramic. Furthermore, a piezoelectric device can be formed by mounting the piezoelectric resonator element / surface acoustic wave resonator on the package base. Note that the method of forming the package / piezoelectric device may be the same as in the third embodiment.
- the bonding region 154 is divided from the bonding region side by the convex portion 156 provided on the first metallization layer 152. Therefore, even if a conductive bonding material for bonding and fixing an electronic component (not shown) to the bonding region flows out along the conductive pattern 150, the convex portion 156 acts as a weir, so that the bonding region is not provided. The conductive bonding material does not flow into the 154. Further, even if a large amount of the conductive bonding material is applied onto the bonding region, the conductive bonding material flowing out of the bonding region may cause a problem.
- the bonding area 154 is not covered, so that the application amount of the conductive bonding material can be used in a wide range. Therefore, wire bonding can be performed on the bonding region 154 regardless of the amount of the conductive bonding material applied and the distance between the bonding region and the bonding region 154.
- the conductive bonding material is prevented from flowing into the bonding region 154 only by providing the projections 156 on the first metallization layer 152 by metallization, it can be manufactured easily and at low cost. Can be.
- a conductive adhesive containing a conductive filler in a resin base, solder, or the like can be used as the conductive bonding material.
- the convex portion 156 is provided on the first metallized layer 152, but the convex portion 156 is provided on the bonding region 157 on the first metallized layer 152 where the metal thin film is not formed.
- the second metallization layer 158 described in the third embodiment may be laminated, and a metal thin film (not shown) may be formed to form the wire bonding electrode 160. Then, the above-mentioned convex portion 162 may be provided between the wire bonding electrode 160 and the bonding region (see FIG. 11E).
- the conductive bonding material flowing along the first metallized layer 15 2 can be blocked by the convex portion 16 2, and even when the conductive bonding material flows over the convex portion 16 2 Since the surface of the wire bonding electrode 160 is located at a position higher than the thickness of the conductive bonding material, the surface is not covered with the conductive bonding material.
- the wire bonding electrode 160 can use the shape described in the third embodiment, and the protrusion 162 can use the shape described in the fourth embodiment.
Landscapes
- Engineering & Computer Science (AREA)
- Microelectronics & Electronic Packaging (AREA)
- Electric Connection Of Electric Components To Printed Circuits (AREA)
- Piezo-Electric Or Mechanical Vibrators, Or Delay Or Filter Circuits (AREA)
- Wire Bonding (AREA)
Abstract
Description
Claims
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| EP04747168A EP1651020A4 (en) | 2003-07-02 | 2004-07-01 | CAPSULE ELECTRODE, CAPSULATION, DEVICE AND PROCESS FOR COMPONENT MANUFACTURING |
| JP2005511411A JPWO2005004565A1 (ja) | 2003-07-02 | 2004-07-01 | 実装電極、パッケージ、デバイスおよびデバイスの製造方法 |
Applications Claiming Priority (4)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2003-190441 | 2003-07-02 | ||
| JP2003190441 | 2003-07-02 | ||
| JP2003191154 | 2003-07-03 | ||
| JP2003-191154 | 2003-07-03 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| WO2005004565A1 true WO2005004565A1 (ja) | 2005-01-13 |
Family
ID=33566751
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| PCT/JP2004/009699 Ceased WO2005004565A1 (ja) | 2003-07-02 | 2004-07-01 | 実装電極、パッケージ、デバイスおよびデバイスの製造方法 |
Country Status (4)
| Country | Link |
|---|---|
| US (1) | US20050056458A1 (ja) |
| EP (1) | EP1651020A4 (ja) |
| JP (1) | JPWO2005004565A1 (ja) |
| WO (1) | WO2005004565A1 (ja) |
Cited By (3)
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| JP2008227055A (ja) * | 2007-03-12 | 2008-09-25 | Mitsubishi Electric Corp | 回路基板 |
| WO2015016173A1 (ja) * | 2013-07-29 | 2015-02-05 | 京セラ株式会社 | 配線基板、リード付き配線基板および電子装置 |
| WO2017195572A1 (ja) * | 2016-05-09 | 2017-11-16 | 株式会社村田製作所 | セラミック電子部品 |
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| DE102004010396A1 (de) * | 2004-03-03 | 2005-09-29 | Infineon Technologies Ag | Sende-/Empfangsfilter und ein Verfahren zum Herstellen desselben |
| JP5150076B2 (ja) * | 2006-09-15 | 2013-02-20 | 株式会社豊田自動織機 | 表面実装用電子部品の表面実装構造 |
| JP4962217B2 (ja) * | 2007-08-28 | 2012-06-27 | 富士通株式会社 | プリント配線基板及び電子装置製造方法 |
| GB2453765A (en) | 2007-10-18 | 2009-04-22 | Novalia Ltd | Product packaging with printed circuit and means for preventing a short circuit |
| EP2290676A4 (en) * | 2008-06-12 | 2012-01-11 | Mitsubishi Materials Corp | METHOD FOR CONNECTING A SUBSTRATE AND MOUNTING OBJECT WITH SOLDERING PASTE |
| US8759713B2 (en) * | 2009-06-14 | 2014-06-24 | Terepac Corporation | Methods for interconnecting bonding pads between components |
| KR20120131726A (ko) * | 2011-05-26 | 2012-12-05 | 삼성전기주식회사 | 적층형 캐패시터 및 그 제조방법 |
| KR101460027B1 (ko) * | 2013-03-15 | 2014-11-12 | 지스마트 주식회사 | 패턴간의 간섭을 방지하는 패턴 안전장치 |
| JP2015039133A (ja) * | 2013-08-19 | 2015-02-26 | 日本特殊陶業株式会社 | パッケージ |
| JP6206266B2 (ja) * | 2014-03-14 | 2017-10-04 | 東芝ライテック株式会社 | 車両用発光モジュール、車両用照明装置、および車両用灯具 |
| JP6011573B2 (ja) * | 2014-03-24 | 2016-10-19 | 株式会社村田製作所 | 電子部品 |
| JP6888343B2 (ja) * | 2017-03-14 | 2021-06-16 | セイコーエプソン株式会社 | 振動デバイス、発振器、電子機器および移動体 |
| KR102775371B1 (ko) * | 2019-10-30 | 2025-03-04 | 삼성전자 주식회사 | 발진기 구조체 및 발진기 구조체를 포함하는 전자 장치 |
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| WO2015016173A1 (ja) * | 2013-07-29 | 2015-02-05 | 京セラ株式会社 | 配線基板、リード付き配線基板および電子装置 |
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Also Published As
| Publication number | Publication date |
|---|---|
| JPWO2005004565A1 (ja) | 2006-08-31 |
| EP1651020A4 (en) | 2007-02-21 |
| US20050056458A1 (en) | 2005-03-17 |
| EP1651020A1 (en) | 2006-04-26 |
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