WO2014199456A1 - 放熱基板の製造方法 - Google Patents
放熱基板の製造方法 Download PDFInfo
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- WO2014199456A1 WO2014199456A1 PCT/JP2013/066166 JP2013066166W WO2014199456A1 WO 2014199456 A1 WO2014199456 A1 WO 2014199456A1 JP 2013066166 W JP2013066166 W JP 2013066166W WO 2014199456 A1 WO2014199456 A1 WO 2014199456A1
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- WIPO (PCT)
- Prior art keywords
- hole
- heat conducting
- conducting member
- heat
- substrate
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- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
- H05K1/00—Printed circuits
- H05K1/02—Details
- H05K1/0201—Thermal arrangements, e.g. for cooling, heating or preventing overheating
- H05K1/0203—Cooling of mounted components
- H05K1/0204—Cooling of mounted components using means for thermal conduction connection in the thickness direction of the substrate
-
- 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
- H05K3/0011—Working of insulating substrates or insulating layers
-
- 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
- H05K3/46—Manufacturing multilayer circuits
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
- H01L2224/00—Indexing scheme for arrangements for connecting or disconnecting semiconductor or solid-state bodies and methods related thereto as covered by H01L24/00
- H01L2224/01—Means for bonding being attached to, or being formed on, the surface to be connected, e.g. chip-to-package, die-attach, "first-level" interconnects; Manufacturing methods related thereto
- H01L2224/26—Layer connectors, e.g. plate connectors, solder or adhesive layers; Manufacturing methods related thereto
- H01L2224/31—Structure, shape, material or disposition of the layer connectors after the connecting process
- H01L2224/32—Structure, shape, material or disposition of the layer connectors after the connecting process of an individual layer connector
- H01L2224/321—Disposition
- H01L2224/32151—Disposition the layer connector connecting between a semiconductor or solid-state body and an item not being a semiconductor or solid-state body, e.g. chip-to-substrate, chip-to-passive
- H01L2224/32221—Disposition the layer connector connecting between a semiconductor or solid-state body and an item not being a semiconductor or solid-state body, e.g. chip-to-substrate, chip-to-passive the body and the item being stacked
- H01L2224/32225—Disposition the layer connector connecting between a semiconductor or solid-state body and an item not being a semiconductor or solid-state body, e.g. chip-to-substrate, chip-to-passive the body and the item being stacked the item being non-metallic, e.g. insulating substrate with or without metallisation
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
- H01L2924/00—Indexing scheme for arrangements or methods for connecting or disconnecting semiconductor or solid-state bodies as covered by H01L24/00
- H01L2924/10—Details of semiconductor or other solid state devices to be connected
- H01L2924/11—Device type
- H01L2924/13—Discrete devices, e.g. 3 terminal devices
- H01L2924/1304—Transistor
- H01L2924/1305—Bipolar Junction Transistor [BJT]
- H01L2924/13055—Insulated gate bipolar transistor [IGBT]
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- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
- H05K2201/00—Indexing scheme relating to printed circuits covered by H05K1/00
- H05K2201/06—Thermal details
- H05K2201/066—Heatsink mounted on the surface of the PCB
-
- 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
- H05K2201/10227—Other objects, e.g. metallic pieces
- H05K2201/10416—Metallic blocks or heatsinks completely inserted in a PCB
-
- 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
- H05K2203/02—Details related to mechanical or acoustic processing, e.g. drilling, punching, cutting, using ultrasound
- H05K2203/0278—Flat pressure, e.g. for connecting terminals with anisotropic conductive adhesive
-
- 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
- H05K2203/07—Treatments involving liquids, e.g. plating, rinsing
- H05K2203/0703—Plating
- H05K2203/0723—Electroplating, e.g. finish plating
-
- 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
- H05K2203/11—Treatments characterised by their effect, e.g. heating, cooling, roughening
- H05K2203/1194—Thermal treatment leading to a different chemical state of a material, e.g. annealing for stress-relief, aging
-
- 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
- H05K3/46—Manufacturing multilayer circuits
- H05K3/4611—Manufacturing multilayer circuits by laminating two or more circuit boards
- H05K3/4614—Manufacturing multilayer circuits by laminating two or more circuit boards the electrical connections between the circuit boards being made during lamination
Definitions
- the present invention relates to a method of manufacturing a heat dissipation board used, for example, in an electric control device of a vehicle, a home appliance, an LED part or an industrial appliance.
- a semiconductor element in an electric circuit tends to have an increased amount of heat generation due to high density and high current.
- a semiconductor using Si causes a malfunction or failure when the ambient temperature becomes 100 ° C. or more.
- heat generating components such as semiconductor elements include switching elements such as IGBTs (Insulated Gate Bipolar Transistors) and IPMs (Intelligent Power Modules).
- a heat-dissipating substrate in which a heat-radiating path is formed on the opposite side of the mounting surface of the component to the substrate is used.
- the heat generated from the heat-generating component is conducted to the back surface side (the opposite side to the component mounting surface (mounting surface)) of the substrate, and is cooled using a heat sink or the like on the back surface.
- a heat conductive member made of metal (Cu, Al, etc.) having high heat conductivity is disposed in a through hole formed in a substrate, and this heat conductive member is fixed in the through hole.
- Fixation of the metal to the through hole is performed by adhesion by press-fitting or plastic deformation, bonding by an adhesive or solder, or the like (see, for example, Patent Document 1).
- heat dissipation of the heat generating component is performed by connecting the heat conducting member to the heat generating component and radiating heat generated from the component to the outside through the heat conducting member (for example, columnar copper).
- the diameter of the heat conducting member is made smaller than the diameter of the through hole when inserted into the through hole, and plastic deformation is caused by pressure after insertion and fixed. It will be done. At this time, if the central position between the heat conducting member and the through hole is deviated, there is a possibility that a gap may be generated. Also, when the pressure for causing plastic deformation of the heat conducting member is large, the amount of plastic deformation spreading in the radial direction of the heat conducting member is not limited to a constant, and a gap is also generated between the heat conducting member and the through hole There is a risk of The presence of such a gap causes a failure due to penetration of the solder used to mount the heat-generating component. In addition, since a strong stress acts on the substrate in a portion where a gap is not generated, the insulating layer may be broken.
- the present invention takes the above-mentioned prior art into consideration, and even when the heat conduction member is fixed in the through hole by plastic deformation, the stress of the heat conduction member causes the substrate to be broken or a crack is generated. It is an object of the present invention to provide a method of manufacturing a heat dissipating substrate without the heat.
- a support plate is disposed on one side of the substrate intermediate so as to close the through hole, and a pressing piece is pressed from the other side of the substrate intermediate.
- the pressing force of the pressing piece is smaller than the compressive breaking stress of the insulating layer in the direction perpendicular to the penetration direction of the through hole.
- a gap of 100 ⁇ m or less is formed between the outer circumferential surface of the heat conducting member and the inner wall surface of the through hole.
- the volume of the heat conducting member is 100% to 110% with respect to the space volume in the through hole.
- the pressing piece when the pressing piece is pressed against the heat conducting member in the plastic deformation step, the pressing piece is within a range within the outer edge of the pressing surface.
- the annealing step of annealing the heat conducting member since the annealing step of annealing the heat conducting member is performed in advance prior to the inserting step, internal stress possessed by the material having thermal conductivity can be removed.
- the proof stress can be reduced by annealing the heat conducting member, the heat conducting member can be set so as to be plastically deformed by a pressing force that does not cause breakage of the substrate intermediate in the plastic deformation step.
- the heat conducting member can be plastically deformed and fixed in the through hole without breaking the body.
- the proof stress can be set, the size of the heat conducting member can be grasped when it is expanded by the amount of strain at which plastic deformation starts. Therefore, when the heat conduction member is plastically deformed in the plastic deformation step, the heat conduction member can be reliably fixed without generating a gap between the heat conduction member and the through hole.
- the pressing force by the pressing piece is made smaller than the compressive breaking stress of the insulating layer in the direction perpendicular to the penetrating direction of the through hole in the plastic deformation step, the insulating layer is directly transferred to the insulating layer. There are no cracks in the
- the heat conducting member and the through hole are in a range which spreads outward uniformly when the heat conducting member is pressed. And contact. That is, as viewed from the pressing direction, the heat conducting member spreads outward evenly while maintaining the circular shape. Further, by setting the volume of the heat conducting member to 100% to 110% with respect to the space volume in the through hole, the heat conducting member and the through hole can be brought into close contact with each other without gaps.
- the pressing piece when the pressing piece is pressed against the heat conducting member in the plastic deformation step, the pressing piece is within the range within the outer edge of the pressing surface, so the pressing force by the pressing piece is directly applied to the substrate intermediate Not acted. For this reason, destruction of the substrate intermediate can be prevented. Further, even if the heat conducting member has a small volume and the entire circumferential surface of the heat conducting member does not adhere to the through holes, the pressing piece may be embedded in the heat conducting member to further push the heat conducting member radially. As a result, it is possible to realize a reliable fixing of the heat conducting member to the through hole.
- any of the substrate intermediate formation step (step S1) to the plating step (step S3) and the shape formation step (step S4) to the alignment step (step S6) may be performed first, or may be performed simultaneously.
- a substrate intermediate 1 as shown in FIG. 2 is manufactured.
- the substrate intermediate 1 is a so-called four-layer substrate, and four conductive layers 2 made of a conductive material which is a conductor pattern are formed via the insulating layer 3.
- two so-called single-sided plates 4a having the conductive layer 2 formed only on one side of the insulating layer 3 are used to sandwich the so-called double-sided plate 4b having the conductive layer 2 formed on both sides of the insulating layer 3
- the insulating layer 3 is made of an insulating resin material, and is, for example, a prepreg.
- the conductive layer 2 is made of a conductive material, for example, copper. If the substrate intermediate 1 has the insulating layer 3 and the conductive layer 2 laminated, the number of laminated layers can be selected appropriately.
- a through hole formation step (step S2) is performed.
- through holes 5 penetrating the substrate intermediate 1 are formed.
- the through hole 5 is drilled using, for example, a drill or a laser.
- the hole shape after drilling is a substantially cylindrical shape, and therefore the inner wall surface of through hole 5 has a circular shape when viewed in the drilling direction.
- step S3 a plating process (step S3) is performed.
- the substrate intermediate 1 in which the through holes 5 are formed is plated. Since this plating process is applied to the entire surface of substrate intermediate 1, plating film 6 deposited by the plating process is formed on both surfaces of substrate intermediate 1 and the inner wall surface of through hole 5 as shown in FIG. It is formed.
- the plating film 6 covers the entire surface of the substrate intermediate 1 and the through holes 5, even after being plated, the plating film 6 is substantially the same as the substrate intermediate 1 and the through holes 5 even if covered with the plating film 6. . Therefore, even when the plating film 6 intervenes on the surface of the substrate intermediate 1 and the inner wall surface of the through hole 5, the surface of the substrate intermediate 1 and the inner wall surface of the through hole 5 may be referred to.
- This shape forming step is a step of forming the shape of the heat conducting member 7 inserted into the through hole 5. That is, it is a process of machining a plate material and a bar made of metal into a substantially cylindrical shape.
- the shape of the heat conduction member 7 can be obtained by punching a metal plate into a substantially cylindrical shape, or cutting an elongated substantially cylindrical bar into a predetermined length as appropriate.
- a material of the heat conduction member 7 a metal material having heat conductivity, for example, copper is used.
- step S5 an annealing process
- step S4 the heat conducting member 7 obtained in step S4 is annealed. Specifically, the heat conducting member 7 is heated in an inert gas and then cooled. Here, after annealing, the heat conducting member 7 has a 0.2% proof stress of 10 MPa or less.
- step S6 an alignment step is performed. This step is a step of positioning the plurality of annealed heat conducting members 7 so as to match the positions of the through holes 5 of the substrate intermediate 1, respectively.
- the alignment of the heat conducting members 7 is performed by inserting the heat conducting members 7 in a support member in which a recess is provided in advance at a position corresponding to the position of the through hole 5 for positioning. At this time, the heat conduction member 7 is automatically inserted into the recess by vibrating the support material.
- This alignment step is performed using a commercially available alignment machine.
- step S7 the insertion step (step S7) is performed.
- the heat conducting member 7 is inserted into the through hole 5. Therefore, as shown in FIG. 5, the heat conducting member 7 is in the state of being disposed in the through hole 5.
- a gap G of 100 ⁇ m or less is formed between the outer peripheral surface of the heat conducting member 7 and the inner wall surface of the through hole 5 (the plated film 6 in the through hole 5 in the example of FIG. 5).
- the volume of the heat conducting member 7 is 100% to 110% with respect to the space volume in the through hole 5 (in the example of FIG. 5, the space volume in the plating film 6 in the through hole 5).
- the heat conducting member 7 since the diameter of the heat conducting member 7 is smaller than the diameter of the through hole 5, the heat conducting member 7 protrudes from the through hole 5. Thus, the outer diameter of the heat conducting member 7 is smaller than the inner diameter of the through hole 5 (in the example of FIG. 5, the through hole formed by the plating film 6). Thus, the heat conduction member 7 is not pressed into the through hole 5 when the heat conduction member 7 is inserted. Therefore, the substrate intermediate 1 is not damaged at the time of insertion.
- a plastic deformation step (step S8) is performed.
- the heat conducting member 7 is fixed in the through hole 5, and the heat dissipation substrate 15 is manufactured.
- the substrate intermediate 1 is set in a press.
- the press is provided with a support plate 8 on which the substrate intermediate 1 is placed. That is, the support plate 8 is disposed on one side of the substrate intermediate 1 so as to close the through hole 5.
- the pressing piece 9 is pressed against the heat conducting member 7 from the other side where the support plate 8 is disposed.
- the end face on the side where the heat conducting member 7 protrudes from the through hole 5 is the pressing surface 10, and the pressing piece 9 is pressed against the pressing surface 10.
- the pressing piece 9 further presses the heat conducting member 7 in the longitudinal direction of the through hole 5, that is, in the arrow P direction.
- the heat conducting member 7 abuts against the support plate 8 by the pressure of the pressing piece 9 and is further spread outward by being further pressed. That is, the heat conducting member 7 spreads in the radial direction and contacts the inner wall surface of the through hole 5.
- the metal heat conducting member 7 is plastically deformed when pressed beyond the 0.2% proof stress, and is fixed in close contact with the through hole 5 as shown in FIG.
- the annealing step of annealing the heat conducting member 7 is performed in advance prior to the above-mentioned insertion step, internal stress of the material having thermal conductivity is removed, and the above-described proof stress can be set. it can. That is, the load resistance of the material to be the heat conducting member 7 is lowered by the annealing process. Therefore, the heat conduction member 7 can be set so as to be plastically deformed by a pressing force that the substrate intermediate 1 is not broken in the plastic deformation step, and the heat conduction member 7 is plastically deformed without breaking the substrate intermediate 1 It can be fixed in the through hole 5.
- the proof stress can be set by the annealing process
- the size of the heat conducting member 7 can be grasped when it is expanded by the amount of strain at which plastic deformation starts. Therefore, the inner diameter of through hole 5 can be set in consideration of the amount of expansion, so that when heat conduction member 7 is plastically deformed in the plastic deformation step, a gap is not generated between through hole 5 reliably. It can be fixed.
- the gap G as described above as narrow as 100 ⁇ m or less, the heat conducting member 7 spreads in the radial direction while maintaining the roundness (even while maintaining the circular shape as viewed from the pressing direction), The heat conduction member 7 and the through holes 5 contact in the process of spreading the outside evenly as such.
- the volume of the heat conducting member 7 is 100% to 110% with respect to the space volume in the through hole 5. .
- a heat conduction member and a through hole can be stuck closely so that a clearance gap may not be carried out reliably.
- the gap G of 100 ⁇ m or less in the case of the heat conducting member 7 made of a copper cylinder having a 0.2% proof stress of 10 MPa or less, when it is pressed by the pressing piece 9 and compressed and deformed, it is viewed from the pressing direction The roundness of the heat conduction member 7 is gradually reduced. At this time, since a difference of 100 ⁇ m appears from the center to the outer edge of the heat conducting member 7 at a strain amount of 10%, the strain amount generated in the heat conducting member 7 in the plastic deformation step is preferably 10% or less.
- the gap G is preferably 100 ⁇ m or less. Furthermore, if the gap G is set to 100 ⁇ m or less, even if there is a gap with the through hole 5 after plastic deformation of the thermal conduction member 7, the gap is about several tens of ⁇ m, so the plating treatment is sufficient Since the interval can be closed, post-processing in case of emergency can be easily performed (lid plating step described later).
- the pressing force by the pressing piece 9 is set smaller than the compressive breaking stress of the insulating layer 3 in the direction perpendicular to the penetrating direction (longitudinal direction) of the through hole 5. By doing so, even if the pressing force is directly transmitted to the insulating layer, the insulating layer 3 is not cracked or the like. Further, if the pressing force is set smaller than the compressive breaking stress of the plating film 6 formed on the inner wall surface of the through hole 5, the plating film 6 in the through hole 5 is not affected.
- the pressing force by the pressing piece 9 is preferably 250 MPa or less .
- the pressing piece 9 is in the range within the outer edge of the pressing surface 10. That is, the pressing piece 9 does not protrude outward from the pressing surface 10 at the time of pressing. Therefore, even if the pressing pieces 9 reach the line of the surface of the substrate intermediate 1, the pressing pieces 9 do not hit the surface of the substrate intermediate 1. In other words, the pressing force by the pressing piece 9 is not directly applied to the substrate intermediate. Therefore, the breakage of the substrate intermediate 1 in the plastic deformation step can be prevented.
- the heat conducting member 7 can be further expanded in the radial direction by inserting the heat conducting member 9 into the heat conducting member 7. For this reason, reliable fixation with respect to the through hole 5 of the heat conductive member 7 is realizable.
- the pressing by the pressing piece 9 is performed by tapping the pressing piece 9 on the heat conducting member 7 by reciprocating motion. That is, the heat conducting member 7 is subjected to a dynamic plastic deformation process. In this dynamic plastic deformation process, the instantaneous stress is greater than that of the static one.
- the fact that the pressing pieces 9 do not directly hit the substrate intermediate 1 is also for preventing such breakage of the substrate intermediate 1 without exerting such a large pressing stress on the substrate intermediate 1.
- the portion of the heat conducting member 7 protruding from the through hole 5 in the plastic deformation step is processed to be flush with the surface of the substrate intermediate 1 by physical polishing such as buffing.
- a lid plating step (step S9) is performed. As shown in FIG. 8, this step is performed when the thermally conductive member 7 and the plating film 6 formed on the inner wall surface of the through hole 5 do not adhere completely in the plastic deformation step, and a space is left. It will be.
- the lid plating 19 is formed by performing a copper plating process on the heat dissipation substrate 15. At this time, the lid plating 19 is also filled in the interval. By the lid plating process, the space between the heat conducting member 7 and the through hole 5 is completely sealed. This completely prevents the solder for mounting components from intruding into the through hole 5 through the interval in the post process.
- Lid plating 19 is suitably removed. In the following drawings, the lid plating 19 is omitted for convenience.
- step S10 a circuit formation step is performed.
- the plating film 6 formed on the surface of the heat dissipation substrate 15 is removed by etching or the like to form a conductor pattern 11 as shown in FIG.
- step S11 a solder resist application step.
- the solder resist 12 made of an insulator is applied to both surfaces of the heat dissipation substrate 15.
- a land formation step (step S12) is performed.
- a part of the solder resist 12 is removed to expose the area on which the electrical or electronic component 13 is to be mounted as a land 14.
- the lands 14 are formed corresponding to both surfaces of the heat dissipation substrate 15, respectively.
- the removal of the solder resist 12 is performed in a 150 ° C. environment for about one hour. Although this temperature exceeds the glass transition temperature Tg (140 ° C.) of the insulating layer 3 made of prepreg, as described above, since the heat conducting member 7 is annealed, strong internal stress is present in the heat conducting member 7 No, and therefore, the insulating layer 3 is not cracked.
- step S13 the component mounting process
- the component 13 is mounted on the land 14 via the solder 16.
- the component 13 and the heat conducting member 7 are thermally connected via the solder 16. That is, the heat radiation path of the heat generated from the component 13 is secured.
- the component 13 and the heat conducting member 7 may be thermally connected using a resin or heat transfer sheet having heat conductivity other than the solder 16.
- a sheet-like thermally conductive sheet 17 made of a conductive material is attached to the land 14 on the surface opposite to the surface on which the component 13 is mounted.
- the heat sink 18 is attached in contact with the heat conduction sheet 17.
Landscapes
- Engineering & Computer Science (AREA)
- Microelectronics & Electronic Packaging (AREA)
- Manufacturing & Machinery (AREA)
- Cooling Or The Like Of Semiconductors Or Solid State Devices (AREA)
- Structure Of Printed Boards (AREA)
- Printing Elements For Providing Electric Connections Between Printed Circuits (AREA)
- Cooling Or The Like Of Electrical Apparatus (AREA)
Abstract
Description
Claims (4)
- 絶縁樹脂材料からなる絶縁層に導電材料からなる導電層が形成された基板中間体を形成する基板中間体形成工程と、
前記基板中間体を貫通する略円柱形状のスルーホールを形成するスルーホール形成工程と、
前記スルーホール内に金属からなる略円柱形状の熱伝導部材を挿入して配する挿入工程と、
前記熱伝導部材を塑性変形させて前記スルーホール内に固定する塑性変形工程と
を備え、
前記挿入工程よりも前に、前記熱伝導部材を焼き鈍す焼き鈍し工程を行うことを特徴とする放熱基板の製造方法。 - 前記塑性変形工程は、前記基板中間体の一方の側に前記スルーホールを閉塞するように支持板を配し、前記基板中間体の他方の側から押圧片を前記熱伝導部材の押し当て面に押し当てて押圧して行われ、
前記押圧片による押圧力は、前記スルーホールの貫通方向に対して垂直方向での前記絶縁層の圧縮破断応力よりも小さいことを特徴とする請求項1に記載の放熱基板の製造方法。 - 前記挿入工程にて、前記熱伝導部材が前記スルーホールに挿入された際に、前記熱伝導部材の外周面と前記スルーホールの内壁面との間には100μm以下の隙間が形成され、かつ前記熱伝導部材の体積は前記スルーホール内の空間体積に対して100%~110%であることを特徴とする請求項1に記載の放熱基板の製造方法。
- 前記塑性変形工程にて、前記押圧片が前記熱伝導部材に押し当てられた際に、前記押圧片は前記押し当て面の外縁以内の範囲に収まっていることを特徴とする請求項2に記載の放熱基板の製造方法。
Priority Applications (7)
Application Number | Priority Date | Filing Date | Title |
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KR1020147014625A KR101466062B1 (ko) | 2013-06-12 | 2013-06-12 | 방열기판의 제조방법 |
PCT/JP2013/066166 WO2014199456A1 (ja) | 2013-06-12 | 2013-06-12 | 放熱基板の製造方法 |
JP2013536951A JP5456214B1 (ja) | 2013-06-12 | 2013-06-12 | 放熱基板の製造方法 |
US14/371,027 US9363885B1 (en) | 2013-06-12 | 2013-06-12 | Method of fabricating heat dissipating board |
CN201380004053.4A CN104472022B (zh) | 2013-06-12 | 2013-06-12 | 散热基板的制造方法 |
EP13849969.4A EP2836056A4 (en) | 2013-06-12 | 2013-06-12 | METHOD FOR PRODUCING A HEAT-DISABLE PLATE |
TW103114895A TWI501716B (zh) | 2013-06-12 | 2014-04-24 | 放熱基板之製造方法 |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
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PCT/JP2013/066166 WO2014199456A1 (ja) | 2013-06-12 | 2013-06-12 | 放熱基板の製造方法 |
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WO2014199456A1 true WO2014199456A1 (ja) | 2014-12-18 |
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PCT/JP2013/066166 WO2014199456A1 (ja) | 2013-06-12 | 2013-06-12 | 放熱基板の製造方法 |
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US (1) | US9363885B1 (ja) |
EP (1) | EP2836056A4 (ja) |
JP (1) | JP5456214B1 (ja) |
KR (1) | KR101466062B1 (ja) |
CN (1) | CN104472022B (ja) |
TW (1) | TWI501716B (ja) |
WO (1) | WO2014199456A1 (ja) |
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JP2017069547A (ja) * | 2015-08-31 | 2017-04-06 | ジョンソン エレクトリック ソシエテ アノニム | 熱効率の高い電気組立体 |
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JPWO2017119248A1 (ja) * | 2016-01-07 | 2018-10-04 | 株式会社村田製作所 | 多層基板、電子機器及び多層基板の製造方法 |
WO2017138104A1 (ja) * | 2016-02-10 | 2017-08-17 | 株式会社メイコー | 基板及び基板の製造方法 |
US10051734B2 (en) | 2016-03-08 | 2018-08-14 | Ibiden Co., Ltd. | Wiring board and method for manufacturing the same |
WO2017175263A1 (ja) * | 2016-04-04 | 2017-10-12 | 株式会社メイコー | 基板及び基板の製造方法 |
WO2018138922A1 (ja) * | 2017-01-30 | 2018-08-02 | 株式会社メイコー | 基板の製造方法 |
JPWO2018138922A1 (ja) * | 2017-01-30 | 2019-11-14 | 株式会社メイコー | 基板の製造方法 |
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JP2018157059A (ja) * | 2017-03-17 | 2018-10-04 | 日本シイエムケイ株式会社 | プリント配線板とその製造方法 |
JP2019009153A (ja) * | 2017-06-20 | 2019-01-17 | 大陽工業株式会社 | 配線基板、電子デバイス及び電子デバイスの製造方法 |
JP6716045B1 (ja) * | 2019-06-14 | 2020-07-01 | 株式会社メイコー | 部品内蔵基板、及び部品内蔵基板の製造方法 |
WO2020250405A1 (ja) * | 2019-06-14 | 2020-12-17 | 株式会社メイコー | 部品内蔵基板、及び部品内蔵基板の製造方法 |
WO2021014908A1 (ja) * | 2019-07-19 | 2021-01-28 | 株式会社オートネットワーク技術研究所 | 金属部材付基板 |
JP6812042B1 (ja) * | 2020-05-20 | 2021-01-13 | かがつう株式会社 | ヒートシンク及び該ヒートシンクの製造方法並びに該ヒートシンクを用いた電子部品パッケージ |
JP2021061452A (ja) * | 2021-01-21 | 2021-04-15 | 日本シイエムケイ株式会社 | プリント配線板とその製造方法 |
JP7026269B2 (ja) | 2021-01-21 | 2022-02-25 | 日本シイエムケイ株式会社 | プリント配線板とその製造方法 |
Also Published As
Publication number | Publication date |
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JPWO2014199456A1 (ja) | 2017-02-23 |
JP5456214B1 (ja) | 2014-03-26 |
US9363885B1 (en) | 2016-06-07 |
CN104472022A (zh) | 2015-03-25 |
US20160143126A1 (en) | 2016-05-19 |
EP2836056A1 (en) | 2015-02-11 |
EP2836056A4 (en) | 2015-12-16 |
KR101466062B1 (ko) | 2014-11-27 |
TWI501716B (zh) | 2015-09-21 |
CN104472022B (zh) | 2016-03-16 |
TW201501602A (zh) | 2015-01-01 |
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