WO2015016289A1 - 配線基板および電子装置 - Google Patents
配線基板および電子装置 Download PDFInfo
- Publication number
- WO2015016289A1 WO2015016289A1 PCT/JP2014/070141 JP2014070141W WO2015016289A1 WO 2015016289 A1 WO2015016289 A1 WO 2015016289A1 JP 2014070141 W JP2014070141 W JP 2014070141W WO 2015016289 A1 WO2015016289 A1 WO 2015016289A1
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- WIPO (PCT)
- Prior art keywords
- electrode
- slit
- wiring board
- electrodes
- insulating substrate
- Prior art date
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- H05K3/4629—Manufacturing multilayer circuits by laminating two or more circuit boards characterised by the insulating layers or materials laminating inorganic sheets comprising printed circuits, e.g. green ceramic sheets
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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 wiring board and an electronic device.
- a wiring board in which electrodes for mounting electronic components are provided on the surface of an insulating substrate.
- the electronic component is bonded onto the electrode by a bonding material such as solder.
- a slit may be provided in an electrode on which an electronic component is mounted (for example, refer to Patent Document 1).
- a wiring board includes an insulating substrate and a plurality of electrodes provided on the insulating substrate so as to be adjacent to each other in plan view.
- the slit in one of the electrodes has a center line drawn in the slit, the outer periphery of the other electrode
- an electronic device includes the wiring board configured as described above and a plurality of electronic components mounted on the electrodes of each of the wiring boards.
- the gas generated from the bonding material on the adjacent electrode is filled in the bonding material. Since it becomes difficult to flow and the gas can be discharged well to the outside, generation of voids in the bonding material can be suppressed.
- the generation of voids in the bonding material between the electrode and the electronic component is reduced, and the wiring board and the electronic component are favorably bonded.
- the electronic device is excellent in heat dissipation and heat dissipation.
- (A) is a top view which shows the electronic device in the 1st Embodiment of this invention, (b) is sectional drawing in the AA of (a).
- (A) is a top view which shows the wiring board of the electronic device shown by Fig.1 (a), (b) is a principal part enlarged top view in the A section of (a).
- (A), (b) is a principal part enlarged plan view which shows the other example of the wiring board of the electronic device in the 1st Embodiment of this invention.
- (A) is a top view which shows the electronic device in the 2nd Embodiment of this invention, (b) is sectional drawing in the AA of (a).
- (A) is a top view which shows the wiring board of the electronic device shown by Fig.4 (a), (b) is a principal part enlarged top view in the A section of (a).
- (A) is a top view which shows the wiring board in the 3rd Embodiment of this invention, (b) is sectional drawing in the AA of (a). It is a principal part expanded sectional view in the A section of FIG.6 (b).
- (A) is a top view which shows the electronic device in the 4th Embodiment of this invention, (b) is sectional drawing in the AA of (a).
- FIG.8 (A) is a top view which shows the wiring board shown by Fig.8 (a)
- (b) is a principal part expanded sectional view in the A section of FIG.8 (b).
- (A) is a top view which shows the other example of the electronic device in the 1st Embodiment of this invention
- (b) is a top view which shows the wiring board of the electronic device shown by (a).
- the electronic device according to the first embodiment of the present invention includes a wiring board 1 and a plurality of electronic components 2 mounted on the wiring board 1.
- the electronic device is mounted on a circuit board constituting an electronic component module, for example.
- the wiring substrate 1 has an insulating substrate 11 and a plurality of electrodes 12 provided on the insulating substrate 11 so as to be adjacent to each other in plan view.
- the insulating substrate 11 has a plate shape whose outer shape is rectangular when viewed in plan, and has a pair of upper and lower main surfaces as shown in FIG. 1B, and a cavity 14 on the upper main surface. Is provided. In the first embodiment, the main surface provided with the cavity 14 and the bottom surface of the cavity 14 are referred to as the upper surface of the insulating substrate 11.
- the insulating substrate 11 functions as a support for supporting the electronic component 2, and a plurality of adjacent electrodes 12 are provided on the bottom surface of the cavity 14 on the top surface of the insulating substrate 11.
- the electronic component 2 is fixed to each of the plurality of electrodes 12 via a bonding material 3 such as solder.
- the electrode 12 has an opening 12b at the outer peripheral edge and a slit 12a that goes inward from the outer peripheral edge.
- the center line 12 c drawn in the slit 12 a intersects with the outer peripheral edge of the other electrode 12.
- the insulating substrate 11 may be made of ceramics such as an aluminum oxide sintered body (alumina ceramic), an aluminum nitride sintered body, a mullite sintered body, or a glass ceramic sintered body.
- alumina ceramic aluminum oxide sintered body
- aluminum nitride sintered body aluminum nitride sintered body
- mullite sintered body a glass ceramic sintered body
- the insulating substrate 11 is manufactured using a resin material, for example, an epoxy resin, a polyimide resin, an acrylic resin, a phenol resin, a polyester resin, or a fluororesin such as a tetrafluoroethylene resin is used. Can do.
- a resin material for example, an epoxy resin, a polyimide resin, an acrylic resin, a phenol resin, a polyester resin, or a fluororesin such as a tetrafluoroethylene resin is used. Can do.
- the insulating substrate 11 is made of, for example, an aluminum oxide sintered body
- an organic binder and a solvent are added to and mixed with raw material powders such as aluminum oxide, silicon oxide, magnesium oxide and calcium oxide to form a slurry.
- raw material powders such as aluminum oxide, silicon oxide, magnesium oxide and calcium oxide to form a slurry.
- a plurality of electrodes 12 are provided on the upper surface of the insulating substrate 11 so as to be adjacent in a plan view. Each electrode 12 is for mounting the electronic component 2 via a bonding material 3 such as solder. In the example shown in FIG. 1 and FIG. 2, 25 electrodes 12 of 5 rows ⁇ 5 rows are provided on the upper surface of the insulating substrate 11 in a grid pattern.
- the wiring conductor 13 is provided on the upper surface, the lower surface, and the inside of the insulating substrate 11. For example, one end portion of the wiring conductor 13 is led out around the electrode 12 on the upper surface of the insulating substrate 11, and the other end portion of the wiring conductor 13 is led out to the lower surface of the insulating substrate 11.
- the wiring conductor 13 has a region to which the connecting member 4 for electrical connection with the electronic component 2 is connected, and has a slit 12a. Absent.
- the electrode 12 and the wiring conductor 13 can be made of a metal material such as tungsten (W), molybdenum (Mo), manganese (Mn), silver (Ag), or copper (Cu).
- a metal material such as tungsten (W), molybdenum (Mo), manganese (Mn), silver (Ag), or copper (Cu).
- the insulating substrate 11 is made of an aluminum oxide sintered body, an electrode 12 or a wiring conductor obtained by adding and mixing an appropriate organic binder and solvent to a refractory metal powder such as W, Mo or Mn
- the conductive paste for 13 is applied in advance to a ceramic green sheet to be the insulating substrate 11 in a predetermined pattern by a screen printing method, and is fired at the same time as the ceramic green sheet to be the insulating substrate 11, whereby the predetermined paste of the insulating substrate 11 is obtained. It is deposited on the position.
- a through hole is formed in the green sheet by punching by a die or punching or laser processing, and a conductive paste for the wiring conductor 13 is filled into the through hole by a printing method. It is formed by placing.
- the exposed surface of the electrode 12 and the wiring conductor 13 is further coated with a plating layer by electrolytic plating.
- the plating layer is made of a metal having excellent corrosion resistance such as nickel, copper, gold, or silver, and connectivity with a connection member.
- a nickel plating layer having a thickness of about 1 to 10 ⁇ m and a silver plating layer having a thickness of about 0.1 to 1 ⁇ m are sequentially deposited.
- the electrode 12 and the wiring conductor 13 can be effectively prevented from corroding, and the bonding of the electrode 12 and the electronic component 2 by the bonding material 3 and the bonding of the wiring conductor 13 and the connecting member 4 such as a bonding wire can be performed.
- the bonding between the wiring conductor 13 and the wiring of the external circuit board can be strengthened.
- a copper plating layer having a thickness of about 10 to 80 ⁇ m may be deposited to facilitate the heat dissipation of the electronic component 2 well.
- a copper plating layer having a thickness of about 10 to 80 ⁇ m may be deposited to facilitate heat dissipation from the wiring board 1 to the external circuit board.
- a plating layer made of a metal other than the above, for example, a palladium plating layer may be interposed.
- Each of the plurality of electrodes 12 is provided with a slit 12a having an opening 12b at the outer peripheral edge and directed inward from the outer peripheral edge.
- the slit 12 a in one of the two adjacent electrodes 12 has a center line 12 c drawn in the slit 12 a intersects with the outer peripheral edge of the other electrode 12. ing.
- the bonding material 3 such as solder
- the gas generated from the bonding material 3 on the adjacent electrode 12 is generated in the bonding material 3. It is less likely to fill and become difficult to flow, and is more likely to be released so as to spread between adjacent electrodes 12.
- the center line 12c drawn to the slit 12a is a line passing through the center in the width direction of the slit 12a, and when the slit 12a is linear, it extends linearly from the opening 12b of the slit 12a.
- the slit 12a is a curved line, it indicates a line that extends linearly in the tangential direction from the opening 12b of the slit 12a.
- the slit 12 a in the other electrode 12 has a center line 12 c drawn in the slit 12 a intersecting with the outer peripheral edge of the one electrode 12.
- the slit 12 a has an opening 12 b at one end, and when the other end is closed, a bonding material 3 such as solder for bonding the electronic component 2 to the electrode 12. Is not divided into a plurality of parts, and a reduction in the bonding area of the electronic component 2 is suppressed, and the bonding reliability of the electronic component 2 is improved.
- the one end of the slit 12a indicates the outer peripheral side of the electrode 12, and the other end of the slit 12a indicates the inner side of the electrode 12.
- the slit 12a is formed by applying a pattern for the electrode 12 when the conductive paste for the electrode 12 is printed on the ceramic green sheet to be the insulating substrate 11 by screen printing. It can be formed by printing and applying to a shape having the slit 12a.
- a part of the electrode 12 is removed by using cutting, laser processing, etching, or the like on the surface of the electrode 12, and the surface of the electrode 12 has an opening 12b.
- the slit 12a may be formed.
- the width of the slit 12a is generated when the electronic component 2 is bonded to the electrode 12 by the bonding material 3 such as solder when the width in a state where the plating layer is applied is 40 ⁇ m or more in a plan view. It becomes easy to discharge the gas well to the outside. Further, considering the bondability and heat dissipation when the electronic component 2 is bonded onto the electrode 12, the width of the slit 12a is preferably 200 ⁇ m or less.
- the interval between the adjacent electrodes 12 in plan view is made wider than the width of the slit 12a, the gas discharged between the electrodes 12 from the slit 12a can easily flow out to the outside.
- the spacing between adjacent electrodes 12 is, for example, about 60 ⁇ m to 300 ⁇ m.
- the slit 12a may have, for example, a shape from one of the outer peripheral edges of the electrode 12 to the other of the outer peripheral edges or a shape having a bent portion, but the other end side is an electrode as in the example shown in FIG.
- the bonding material 3 such as solder
- the width of the slit 12a in plan view is larger than the thickness of the electrode 12 in order to suppress gas from staying in the slit 12a.
- the rectangular electrode 12 refers to the shape of the electrode 12 including the region where the slit 12a is provided.
- the slit 12 a is used when the electronic component 2 is joined to the electrode 12 by the joining material 3 such as solder. Since the gas generated from the upper bonding material 3 is difficult to be released and the gas is likely to be discharged to the outside from the position that is the central portion of the electrode 12, generation of voids in the bonding material can be suppressed. .
- the center part of the electrode 12 refers to a region located in the center of the electrode 12 and having a width dimension of 2/5 or less of the entire electrode 12.
- a plurality of slits 12 a are provided in one electrode 12, if the plurality of slits 12 a are dispersed in the circumferential direction with the center of gravity of the electrode 12 as the center, the plurality of slits 12 a of each electrode 12 causes gas to flow. Can be released as far as possible.
- the insulating substrate 11 may have an upper surface including the cavity 14 as in the example shown in FIGS.
- Such cavities 14 are formed by forming through holes to be cavities 14 in a plurality of ceramic green sheets by laser processing or punching with a mold on the ceramic green sheets, and forming these through holes. It can be formed by laminating the ceramic green sheets. Further, when the thickness of the insulating substrate 11 is thin, it is preferable that the through hole for the cavity 14 is formed by laser processing or punching with a mold after laminating ceramic green sheets, because it can be processed with high accuracy.
- the wiring substrate 1 has an insulating substrate 11 having an upper surface including the cavity 14 on which the light emitting element is mounted, for example, a reflection layer for reflecting light emitted from the light emitting element is provided on the inner wall surface of the cavity 14. It may be.
- the reflective layer has, for example, a metal conductor layer provided on the inner wall surface of the cavity 14 and a plating layer deposited on the metal conductor layer.
- the metal conductor layer can be formed by the same material and method as the electrode 12 and the wiring conductor 13.
- the outermost surface of the electrode 12 When mounting a light emitting element on the wiring board 1, for example, it is preferable to deposit a silver plating layer on the outermost surface of the electrode 12 and to deposit a gold plating layer on the outermost surface of the wiring conductor 13. .
- the gold plating layer is superior in bonding properties to the electronic component 2, the connection member 3, and the wiring of the external circuit board.
- the silver plating layer is more resistant to light than the gold plating layer. This is because the reflectance is high.
- the outermost surface of the electrode 12 may be an alloy plating layer of silver and gold, for example, an alloy plating layer of a complete solid solution of silver and gold.
- the electronic device is manufactured by mounting the electronic component 2 on the upper surface of the wiring board 1.
- the electronic device includes a wiring board 1 and a plurality of electronic components 2 mounted on each electrode 12 of the wiring board 1.
- the electronic component 2 mounted on the wiring board 1 is a semiconductor element such as an IC chip or an LSI chip, a light emitting element, a piezoelectric element such as a crystal vibrator or a piezoelectric vibrator, and various sensors.
- the semiconductor element is fixed to the electrode 12 with a bonding material 3 such as solder and then the semiconductor element is connected via a connecting member 4 such as a bonding wire.
- the electrode and the wiring conductor 13 are electrically connected to be mounted on the wiring board 1 to be an electronic device.
- the electronic component 2 is sealed with a sealing material 5 made of resin, glass, or the like, or a lid made of resin, glass, ceramics, metal, or the like, as necessary.
- the electronic component 2 is disposed on the electrode 12 via a bonding material 3 such as solder and is reflowed to be mounted on the electrode 12, and the slit 12 a overlaps the electronic component 2 in plan perspective.
- a solder paste or the like is used as the bonding material 3, and an organic component contained in the solder paste is generated as a gas during reflow.
- the insulating substrate 11 and the plurality of electrodes 12 provided on the insulating substrate 11 so as to be adjacent to each other in plan view are provided.
- the slit 12a has a slit 12a that extends inward from the outer peripheral edge and has a slit 12a in one of the two adjacent electrodes 12, and the center line 12c drawn in the slit 12a is the center line 12c of the other electrode 12.
- the wiring board 1 of the present embodiment in particular, the wiring board 1 in which a plurality of electrodes 12 are densely arranged on the upper surface of the insulating substrate 11, or the plurality of thick electrodes 12 are arranged on the upper surface of the insulating substrate 11.
- the wiring board 1 can be suitably used.
- the wiring board 1 having the above-described configuration and the plurality of electronic components 2 mounted on each electrode 12 of the wiring board 1 are provided, so that the electrode 12 and the electronic component are provided.
- the generation of voids in the bonding material 3 between the wiring board 1 and the electronic component 2 is reduced, and the electronic device 2 is excellent in bonding reliability and heat dissipation.
- the electronic device of the present embodiment can be suitably used particularly in a light emitting device in which a plurality of light emitting elements are mounted densely and high heat dissipation is required.
- the difference from the electronic device according to the first embodiment described above is that, in the plan view, as in the example shown in FIG. 4 and FIG. This is that the width on the one end side is larger than the width on the other end side of the electrode 12.
- 13 electrodes 12 are provided on the upper surface of the insulating substrate 11 in a lattice shape so that the outer shape of the array is a rhombus.
- the slit 12a has a width on one end side larger than a width on the other end side of the electrode 12 in a plan view.
- the gas can be released well.
- the area of the electrode 12 on which the electronic component 2 is mounted is ensured larger than the case where the width of the slit 12a is increased as a whole from one end side to the other end side, Bondability by the bonding material 3 with the electronic component 2 and heat dissipation from the electronic component 2 to the electrode 12 can be improved.
- Such a configuration is applicable to the first embodiment.
- Such a slit 12a gradually or partially increases the width of the slit 12a from the other end side toward the one end side, or gradually increases the width of the slit 12a from the other end side toward the one end side.
- the slit 12a can have a width on one end side larger than a width on the other end side.
- the electrode 12 and the slit 12a in the second embodiment are formed by the same method as in the first embodiment.
- the width of the slit 12a is increased in a region outside the electronic component 2 in a plan view, it is possible to easily release the gas while maintaining the bonding property and heat dissipation of the electronic device. .
- the angle ⁇ formed between the inner surface of the cavity 14 and the bottom surface of the cavity 14 is an obtuse angle as in the example shown in FIGS. In particular, it may be 110 to 145 degrees.
- the angle ⁇ is in such a range, it is easy to stably and efficiently form the inner side surface of the through hole serving as the cavity 14 by punching, and the light emitting device using the wiring board 1 can be easily downsized.
- the light emitted from the light emitting element can be emitted well toward the outside.
- the cavity 14 having the inner surface with such an angle ⁇ is formed by punching the ceramic green sheet using a punching die in which the clearance between the punch diameter and the die hole diameter is set large.
- the green sheet is punched when the ceramic green sheet is punched from the main surface side to the other main surface side. Is formed so that the diameter of the through hole spreads from the main surface side to the other main surface side by shearing from the edge of the contact surface to the edge of the contact surface with the die hole.
- the angle of the inner surface of the through hole formed in the ceramic green sheet can be adjusted by setting the clearance between the diameter of the punch and the diameter of the die hole according to the thickness of the ceramic green sheet.
- Such a punching method has high productivity because the angle ⁇ formed by the inner surface of the cavity 14 and the bottom surface of the cavity 14 can be set to a desired angle only by punching.
- a truncated cone shape or a truncated pyramid shape is formed on the inner surface of the through hole.
- a through-hole having an angle ⁇ extending from one main surface side to the other main surface side as described above may be formed by pressing the mold. In such a case, the angle ⁇ formed by the inner side surface of the cavity 14 and the bottom surface of the cavity 14 can be adjusted with higher accuracy.
- the wiring board according to the third embodiment of the present invention is different from the wiring board according to the above-described embodiment in that the slit 12a has a width when viewed in cross section, as in the example shown in FIGS.
- the upper surface side W2 of the electrode 12 is larger than the insulating substrate 11 side W1, and among the plurality of electrodes 12, some of the electrodes 12 arranged on the outermost periphery are connected to the wiring conductor 13 arranged around the periphery. It is a point that has been. In the example shown in FIGS. 6 and 7, nine electrodes 12 of 3 vertical rows ⁇ 3 horizontal rows are provided on the surface of the insulating substrate 11 in a grid pattern.
- the slit 12a has a width when viewed from the cross section, and the upper surface side W2 of the electrode 12 is larger than the insulating substrate 11 side W1, so that the gas flows upward from the slit 12a. Can be easily released, and generation of voids in the bonding material 3 can be suppressed.
- Such a configuration is applicable to the first embodiment and the second embodiment.
- the slit 12a provided in the electrode 12 connected to the wiring conductor 13 arranged in the periphery is provided in the outer peripheral edge where the connection portion between the electrode 12 and the wiring conductor 13 is formed, the flow of the fluid is obstructed by the connection portion. Therefore, it is preferable to provide the outer peripheral edge or corner part excluding the outer peripheral edge where the connection part is formed.
- the difference from the electronic device according to the above-described embodiment is that when the adjacent electrodes 12 are viewed in cross section as in the examples shown in FIGS.
- the gap is that the upper surface side W4 of the electrode 12 is larger than the insulating substrate 11 side W3, and the arrangement of the electrodes 12 is shifted in the horizontal direction.
- 25 electrodes 12 of 5 rows ⁇ 5 rows are provided on the surface of the insulating substrate 11 in a grid pattern.
- the distance between the adjacent electrodes 12 is larger in the upper surface side W4 of the electrode 12 than in the insulating substrate 11 side W3.
- the gas can be easily released upward, so that the gas can be released to the outside through the gap between the electrodes 12 from the slit 12a, and a void is generated in the bonding material 3. Can be suppressed.
- the opening 12b of the slit 12a is provided so as to be positioned between the adjacent electrodes 12 as in the example shown in FIGS. 8 and 9, the slit 12a is provided between the electrodes 12 with each other.
- the gas emission can be made favorable.
- the gas can be released well from the slit 12a to the space between the electrodes 12.
- the wiring board 1 may include a conductor other than the wiring such as the central terminal 15 as in the example shown in FIG.
- the center terminal 15 can be manufactured by the same material and method as those of the electrode 12 and the wiring conductor 13 described above, and a plating layer similar to the electrode 12 and the wiring conductor 13 is deposited on the exposed surface.
- the center terminal 15 is used for bonding to an external circuit board, for example, similarly to the wiring conductor 13.
- a metal layer 16 may be provided between the plurality of electrodes 12.
- the metal layer 16 has a region for connecting the connection member 4 and does not have a slit.
- the metal layer 16 can be manufactured by the same material and method as those of the electrode 12 and the wiring conductor 13 described above, and a plating layer similar to that of the electrode 12 and the wiring conductor 13 is deposited on the exposed surface.
- the metal layer 16 is used as a region for connecting the electrode of the electronic component 2 between the electrodes 12 for mounting the electronic component between the bonding members 4.
- the metal layer 16 may partially connect the electrode 12 or the wiring conductor 13.
- the other end portion of the wiring conductor 13 is led out to the lower surface of the insulating substrate 11, but may be led to the side surface of the insulating substrate 11.
- a groove may be provided on the side surface of the insulating base 11, and a so-called castellation conductor having a conductor attached to the inner surface of the groove may be provided.
- the other end portion of the wiring conductor 13 when the other end portion of the wiring conductor 13 is led out to the upper surface side, it may be joined to an external circuit board on the upper surface side of the wiring conductor 1. Since such a wiring board 1 can be bonded to an external circuit board on the upper surface side of the wiring board 1, a member having a higher thermal conductivity than the insulating substrate 11 is bonded to the entire lower surface side of the wiring board 1. 1 heat dissipation can be improved.
- a material having higher thermal conductivity than the insulating substrate 11 when the insulating substrate 11 is made of an aluminum oxide sintered body, a metal such as copper (Cu), copper-tungsten (Cu-W) or aluminum (Al) is used. Examples thereof include an insulating substrate made of a material and an aluminum nitride sintered body.
- the wiring board 1 is formed by embedding a metal member having better heat dissipation than the insulating substrate 11 in a region overlapping a region where a plurality of electronic components 2 are mounted in a plan view. It may be.
- the wiring board 1 may be manufactured in the form of a multi-piece wiring board.
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Abstract
Description
本発明の第1の実施形態における電子装置は、図1および図2に示されているように、配線基板1と、配線基板1に実装された複数の電子部品2とを含んでいる。電子装置は、例えば電子部品モジュールを構成する回路基板上に実装される。
また、配線導体13は、絶縁基板11の上面、下面および内部に設けられている。配線導体13の一端部は、例えば、絶縁基板11の上面のうち電極12の周囲に導出されており、配線導体13の他端部は、絶縁基板11の下面に導出されている。また、絶縁基板11を構成する絶縁層を貫通して配線導体13の一端部と配線導体13の他端部とを電気的に接続する貫通導体を含んでいる。なお、図1および図2に示される例においては、配線導体13は、電子部品2と電気的に接続するための接続部材4が接続される領域を有しており、スリット12aを有していない。
次に、本発明の第2の実施形態による電子装置について、図4および図5を参照しつつ説明する。
次に、本発明の第3の実施形態による配線基板について、図6および図7を参照しつつ説明する。
次に、本発明の第4の実施形態による電子装置について、図8および図9を参照しつつ説明する。
11・・・・絶縁基板
12・・・・電極
12a・・・スリット
12b・・・開口部
12c・・・スリットに引いた中心線
13・・・・配線導体
14・・・・キャビティ
15・・・・中央端子層
16・・・・金属層
2・・・・電子部品
3・・・・接合材
4・・・・接続部材
5・・・・封止材
Claims (12)
- 絶縁基板と、
該絶縁基板上に平面視で隣り合うようにして複数設けられた電極とを備えており、
該電極は外周縁に開口部を有して前記外周縁から内側に向かうスリットを有し、
隣り合う2つの前記電極のうち、一方の前記電極にある前記スリットは、当該スリットに引いた中心線が他方の前記電極の外周縁と交わっていることを特徴とする配線基板。 - 前記スリットは、一方端に前記開口部を有し、他方端が閉じていることを特徴とする請求項1に記載の配線基板。
- 前記スリットは、他方端側が前記電極の中央に向かって延びていることを特徴とする請求項2に記載の配線基板。
- 前記電極は矩形状であり、前記スリットの前記一方端が、当該電極の角部にあることを特徴とする請求項3に記載の配線基板。
- 前記スリットは、前記他方端が前記電極の中央部にあることを特徴とする請求項3に記載の配線基板。
- 1つの前記電極は、複数の前記スリットを有しており、前記複数のスリットが前記電極の重心を中心とした周方向に分散していることを特徴とする請求項1に記載の配線基板。
- 平面視において、前記スリットは、前記電極の前記他方端側における幅よりも前記一方端側における幅が大きくなっていることを特徴とする請求項2~5のいずれかに記載の配線基板。
- 前記スリットの幅が、前記他方端側から前記一方端側に向かって漸次大きくなっていることを特徴とする請求項7に記載の配線基板。
- 前記スリットは、断面視したときの幅が前記絶縁基板側よりも前記電極の上面側が大きくなっていることを特徴とする請求項1~8のいずれかに記載の配線基板。
- 隣接する前記電極間を断面視したときの間隔が前記絶縁基板側よりも当該電極の上面側が大きくなっていることを特徴とする請求項1に記載の配線基板。
- 請求項1に記載の配線基板と、
前記配線基板の各々の前記電極上に実装された複数の電子部品とを有することを特徴とする電子装置。 - 前記スリットは、平面透視で前記電子部品と重なっていることを特徴とする請求項11に記載の電子装置。
Priority Applications (4)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN201480006398.8A CN104956781B (zh) | 2013-07-30 | 2014-07-30 | 布线基板以及电子装置 |
JP2015529607A JP6068645B2 (ja) | 2013-07-30 | 2014-07-30 | 配線基板および電子装置 |
US14/764,795 US9883589B2 (en) | 2013-07-30 | 2014-07-30 | Wiring board, and electronic device |
EP14832154.0A EP3030060B1 (en) | 2013-07-30 | 2014-07-30 | Wiring base plate and electronic device |
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JP2020136431A (ja) * | 2019-02-18 | 2020-08-31 | 株式会社東芝 | 半導体デバイスの製造方法および半導体デバイス |
JP2022000976A (ja) * | 2018-04-25 | 2022-01-04 | 株式会社村田製作所 | 基板 |
WO2023089864A1 (ja) * | 2021-11-22 | 2023-05-25 | パナソニックIpマネジメント株式会社 | はんだ実装ランド及び充電器 |
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TWI681564B (zh) * | 2019-01-10 | 2020-01-01 | 茂達電子股份有限公司 | 行動通訊裝置及其光學封裝結構 |
CN113241336B (zh) * | 2021-04-27 | 2023-12-01 | 上海华虹宏力半导体制造有限公司 | 半导体器件结构及其形成方法 |
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CN104956781A (zh) | 2015-09-30 |
EP3030060A1 (en) | 2016-06-08 |
JPWO2015016289A1 (ja) | 2017-03-02 |
EP3030060B1 (en) | 2020-01-08 |
JP6068645B2 (ja) | 2017-01-25 |
EP3030060A4 (en) | 2017-04-05 |
US20150373846A1 (en) | 2015-12-24 |
US9883589B2 (en) | 2018-01-30 |
CN104956781B (zh) | 2018-05-18 |
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