WO2014045766A1 - 半導体装置及び半導体装置の製造方法 - Google Patents
半導体装置及び半導体装置の製造方法 Download PDFInfo
- Publication number
- WO2014045766A1 WO2014045766A1 PCT/JP2013/071881 JP2013071881W WO2014045766A1 WO 2014045766 A1 WO2014045766 A1 WO 2014045766A1 JP 2013071881 W JP2013071881 W JP 2013071881W WO 2014045766 A1 WO2014045766 A1 WO 2014045766A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- heat dissipation
- case
- semiconductor device
- substrate
- fins
- Prior art date
Links
- 239000004065 semiconductor Substances 0.000 title claims abstract description 103
- 238000004519 manufacturing process Methods 0.000 title claims abstract description 16
- 239000000758 substrate Substances 0.000 claims abstract description 133
- 238000000034 method Methods 0.000 claims abstract description 29
- 230000017525 heat dissipation Effects 0.000 claims description 120
- 239000000463 material Substances 0.000 claims description 37
- 238000005304 joining Methods 0.000 claims description 26
- 239000002826 coolant Substances 0.000 claims description 23
- 238000003466 welding Methods 0.000 claims description 17
- 238000003756 stirring Methods 0.000 claims description 16
- 238000001816 cooling Methods 0.000 claims description 14
- 239000000110 cooling liquid Substances 0.000 abstract description 13
- 239000010410 layer Substances 0.000 description 22
- 239000004020 conductor Substances 0.000 description 12
- 238000004512 die casting Methods 0.000 description 11
- 229910052782 aluminium Inorganic materials 0.000 description 9
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 9
- 230000000052 comparative effect Effects 0.000 description 8
- 239000007769 metal material Substances 0.000 description 7
- 230000002093 peripheral effect Effects 0.000 description 7
- 238000006243 chemical reaction Methods 0.000 description 5
- 238000010586 diagram Methods 0.000 description 5
- 230000000694 effects Effects 0.000 description 5
- 239000011347 resin Substances 0.000 description 5
- 229920005989 resin Polymers 0.000 description 5
- 238000007789 sealing Methods 0.000 description 5
- 229910000838 Al alloy Inorganic materials 0.000 description 4
- 238000005219 brazing Methods 0.000 description 4
- 238000005520 cutting process Methods 0.000 description 4
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 3
- 229910010293 ceramic material Inorganic materials 0.000 description 3
- 238000009497 press forging Methods 0.000 description 3
- PXHVJJICTQNCMI-UHFFFAOYSA-N Nickel Chemical compound [Ni] PXHVJJICTQNCMI-UHFFFAOYSA-N 0.000 description 2
- 229910045601 alloy Inorganic materials 0.000 description 2
- 239000000956 alloy Substances 0.000 description 2
- 239000000919 ceramic Substances 0.000 description 2
- 229910052802 copper Inorganic materials 0.000 description 2
- 239000010949 copper Substances 0.000 description 2
- 239000012530 fluid Substances 0.000 description 2
- 239000011888 foil Substances 0.000 description 2
- 239000007788 liquid Substances 0.000 description 2
- 229910052751 metal Inorganic materials 0.000 description 2
- 239000002184 metal Substances 0.000 description 2
- 238000004088 simulation Methods 0.000 description 2
- 229910000679 solder Inorganic materials 0.000 description 2
- 238000005476 soldering Methods 0.000 description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 2
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 1
- 229910000881 Cu alloy Inorganic materials 0.000 description 1
- -1 and for example Chemical compound 0.000 description 1
- 230000002528 anti-freeze Effects 0.000 description 1
- 229910052799 carbon Inorganic materials 0.000 description 1
- 238000005266 casting Methods 0.000 description 1
- 239000000470 constituent Substances 0.000 description 1
- 239000011889 copper foil Substances 0.000 description 1
- PMHQVHHXPFUNSP-UHFFFAOYSA-M copper(1+);methylsulfanylmethane;bromide Chemical compound Br[Cu].CSC PMHQVHHXPFUNSP-UHFFFAOYSA-M 0.000 description 1
- 238000009792 diffusion process Methods 0.000 description 1
- 238000007599 discharging Methods 0.000 description 1
- 238000009826 distribution Methods 0.000 description 1
- 239000000945 filler Substances 0.000 description 1
- 230000020169 heat generation Effects 0.000 description 1
- 230000001771 impaired effect Effects 0.000 description 1
- 230000010354 integration Effects 0.000 description 1
- 238000003754 machining Methods 0.000 description 1
- 229910052759 nickel Inorganic materials 0.000 description 1
- TWNQGVIAIRXVLR-UHFFFAOYSA-N oxo(oxoalumanyloxy)alumane Chemical compound O=[Al]O[Al]=O TWNQGVIAIRXVLR-UHFFFAOYSA-N 0.000 description 1
- 229920003023 plastic Polymers 0.000 description 1
- 238000007747 plating Methods 0.000 description 1
- 239000011241 protective layer Substances 0.000 description 1
- 230000005855 radiation Effects 0.000 description 1
- 230000035882 stress Effects 0.000 description 1
- 230000003746 surface roughness Effects 0.000 description 1
- 230000008646 thermal stress Effects 0.000 description 1
Images
Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
- H01L23/00—Details of semiconductor or other solid state devices
- H01L23/34—Arrangements for cooling, heating, ventilating or temperature compensation ; Temperature sensing arrangements
- H01L23/46—Arrangements for cooling, heating, ventilating or temperature compensation ; Temperature sensing arrangements involving the transfer of heat by flowing fluids
- H01L23/473—Arrangements for cooling, heating, ventilating or temperature compensation ; Temperature sensing arrangements involving the transfer of heat by flowing fluids by flowing liquids
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
- H01L23/00—Details of semiconductor or other solid state devices
- H01L23/12—Mountings, e.g. non-detachable insulating substrates
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
- H01L24/00—Arrangements for connecting or disconnecting semiconductor or solid-state bodies; Methods or apparatus related thereto
- H01L24/80—Methods for connecting semiconductor or other solid state bodies using means for bonding being attached to, or being formed on, the surface to be connected
- H01L24/81—Methods for connecting semiconductor or other solid state bodies using means for bonding being attached to, or being formed on, the surface to be connected using a bump connector
-
- 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
- H01L2224/00—Indexing scheme for arrangements for connecting or disconnecting semiconductor or solid-state bodies and methods related thereto as covered by H01L24/00
- H01L2224/80—Methods for connecting semiconductor or other solid state bodies using means for bonding being attached to, or being formed on, the surface to be connected
- H01L2224/81—Methods for connecting semiconductor or other solid state bodies using means for bonding being attached to, or being formed on, the surface to be connected using a bump connector
- H01L2224/81053—Bonding environment
- H01L2224/81085—Bonding environment being a liquid, e.g. for fluidic self-assembly
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
- H01L23/00—Details of semiconductor or other solid state devices
- H01L23/34—Arrangements for cooling, heating, ventilating or temperature compensation ; Temperature sensing arrangements
- H01L23/36—Selection of materials, or shaping, to facilitate cooling or heating, e.g. heatsinks
- H01L23/373—Cooling facilitated by selection of materials for the device or materials for thermal expansion adaptation, e.g. carbon
- H01L23/3735—Laminates or multilayers, e.g. direct bond copper ceramic substrates
-
- 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]
-
- 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]
-
- 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
- H01L2924/15—Details of package parts other than the semiconductor or other solid state devices to be connected
- H01L2924/151—Die mounting substrate
- H01L2924/156—Material
- H01L2924/15786—Material with a principal constituent of the material being a non metallic, non metalloid inorganic material
- H01L2924/15787—Ceramics, e.g. crystalline carbides, nitrides or oxides
-
- 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
- H01L2924/30—Technical effects
- H01L2924/35—Mechanical effects
- H01L2924/351—Thermal stress
Definitions
- the present invention relates to a semiconductor device including a cooler for cooling a semiconductor element and a method for manufacturing the semiconductor device.
- Power conversion devices are used for energy saving in devices that use motors such as hybrid vehicles and electric vehicles.
- a semiconductor module is widely used for this power converter.
- a semiconductor module constituting such a control device for energy saving includes a power semiconductor element that controls a large current.
- a normal power semiconductor element generates heat when controlling a large current, and the amount of generated heat increases as the power conversion device is miniaturized and output is increased. Therefore, in a semiconductor module having a plurality of power semiconductor elements, the cooling method becomes a big problem.
- a liquid cooling type cooler has been used as a cooler attached to a semiconductor module in order to cool the semiconductor module.
- the liquid-cooled cooler increases the flow rate of the coolant, makes the heat dissipating fin (cooling body) of the cooler have a good heat transfer rate, or
- Various ideas have been made, such as using materials with high thermal conductivity as constituent materials.
- a semiconductor device provided with fins for heat dissipation for example, there is a structure in which a power semiconductor element and a heat dissipation substrate for heat dissipation are joined via an insulating substrate.
- the semiconductor device having such a structure it is possible to improve the heat dissipation by reducing the entire thickness of the heat dissipation substrate and to improve the cooling efficiency. Therefore, the temperature rise of the power semiconductor can be effectively reduced.
- a conductor layer is formed on one surface of a ceramic insulating substrate, and a heat dissipation layer that also serves as a fin base of the same thickness as the conductor layer is formed on the other surface.
- a structure Patent Document 1 is proposed in which the fin base portion is thicker and reinforced to suppress deformation.
- the thickness of the heat dissipation layer that also serves as the fin base is approximately the same as that of the conductor layer and may be deformed by an external force.
- the burden on the processing cost has increased due to problems such as
- improvement of the material of the heat dissipation substrate and insulating substrate to be joined and improvement such as providing stress relaxation materials at those joints are also conceivable. It has been difficult to achieve both improved heat dissipation and improved reliability with minimal impact.
- the present invention advantageously solves the above-described problems, and provides a semiconductor device and a method for manufacturing the semiconductor device that have good heat dissipation, high reliability, and reduced increase in processing cost. Objective.
- the semiconductor device includes an insulating substrate, a semiconductor element mounted on the insulating substrate, and a cooler that cools the semiconductor element.
- the cooler includes a heat radiating substrate bonded to the insulating substrate, a plurality of fins provided on a surface of the heat radiating substrate opposite to the bonding surface of the insulating substrate, and housing these fins and a cooling liquid inlet And a case provided with a discharge port.
- An end portion of the heat dissipation substrate is disposed in a notch provided in the upper end portion of the case side wall, and the heat dissipation substrate and the case are joined in a liquid-tight manner.
- This semiconductor device manufacturing method is a method of manufacturing a semiconductor device including an insulating substrate, a semiconductor element mounted on the insulating substrate, and a cooler for cooling the semiconductor element.
- This manufacturing method includes a step of joining the case to the heat dissipation substrate of the cooler having the heat dissipation substrate, the plurality of fins, and the case.
- the case having a notch formed at the upper end of the side wall of the case is prepared, and an end portion of the heat dissipation board is disposed in the notch of the case to bond the heat dissipation board and the case in a liquid-tight manner.
- the notch is provided in the upper end portion of the case of the cooler, and the heat dissipation board adapted to the notch is provided to close the upper opening of the case. Therefore, the heat dissipation board having a predetermined thickness is provided. While maintaining good heat dissipation, it is possible to suppress an increase in manufacturing cost as easy to process.
- FIG. 1 is an external perspective view showing an example of a semiconductor device of the present invention.
- 2 is a cross-sectional view taken along the line II-II of the semiconductor device of FIG.
- FIG. 3 is a diagram illustrating an example of a power conversion circuit configured as a semiconductor module.
- 4A and 4B are diagrams for explaining the shapes of three types of fins, where FIG. 4A is a perspective view showing blade fins, FIG. 4B is a perspective view showing pin fins having cylindrical pins, and FIG. It is a perspective view which shows the pin fin which has a pin of a shape.
- FIG. 5 is a perspective view showing a main configuration of the cooler case.
- FIG. 6 is a cross-sectional view showing another example of the semiconductor device of the present invention.
- FIG. 1 is an external perspective view showing an example of a semiconductor device of the present invention.
- 2 is a cross-sectional view taken along the line II-II of the semiconductor device of FIG.
- FIG. 3 is a diagram
- FIG. 7 illustrates a conventional semiconductor module as a first comparative example, and is a cross-sectional view of a conventional semiconductor module structure.
- FIG. 8 is a diagram showing a comparison result of the thermal resistance values by configuration of the semiconductor device of the comparative example.
- FIG. 9 is a diagram illustrating a comparison result of the thermal resistance values by configuration of the semiconductor device of the example.
- a semiconductor device 1 according to an embodiment of the present invention shown in a perspective view in FIG. 1 and in a cross-sectional view in FIG. 2 includes a semiconductor module 10 and a cooler 20 that cools the semiconductor module.
- the semiconductor module 10 includes a plurality of circuit element units 11A, 11B, and 11C disposed on the cooler 20. These circuit element units 11A, 11B, and 11C constitute, for example, a three-phase inverter circuit in the semiconductor module 10.
- the insulating substrate 12 includes an insulating layer 12a made of an electrically insulating plate and conductor layers 12b and 12c formed on both surfaces of the insulating layer 12a.
- a ceramic substrate such as aluminum nitride or aluminum oxide can be used.
- the conductor layers 12b and 12c of the insulating substrate 12 can be formed using conductive metal foil (for example, copper foil or aluminum foil) such as copper or aluminum.
- the conductor layer 12b of the insulating substrate 12 is a conductor layer on which a circuit pattern is formed, and the semiconductor elements 13 and 14 are joined to the conductor layer 12b via a joining layer 15 such as solder.
- the semiconductor elements 13 and 14 are electrically connected directly by a circuit pattern of the conductor layer 12b or via wires (not shown).
- the exposed surfaces of the conductor layers 12b and 12c of the insulating substrate 12 and the wire surfaces that electrically connect the semiconductor elements 13 and 14 and the conductor layer 12b are stained or corroded by nickel plating or the like. You may make it form the protective layer for protecting from external force etc.
- the semiconductor module 10 constitutes a three-phase inverter circuit 40 as a power conversion circuit as an example.
- one semiconductor element 13 is a free wheeling diode (Free Wheeling Diode: FWD)
- the other semiconductor element 14 is an insulated gate bipolar transistor (Insulated Gate Bipolar Transistor: IGBT).
- An AC motor 41 is connected.
- the semiconductor module 10 includes three circuit element units 11A to 11C is shown.
- the number of circuit element units can be changed as appropriate according to the circuit, application, or function in which the semiconductor module 10 is used, and is not necessarily limited to three.
- the semiconductor module 10 is provided with a resin case 17 so as to surround the circuit element portions 11A to 11C.
- the resin case 17 is not shown in FIG. 1 for easy understanding.
- the insulating substrate 12 on which the semiconductor elements 13 and 14 are mounted is bonded to the heat dissipation substrate 21 of the cooler 20 via the bonding layer 16 on the other conductor layer 12c side.
- the insulating substrate 12 and the semiconductor elements 13 and 14 are connected to the cooler 20 so as to be able to conduct heat.
- the cooler 20 includes a heat dissipation substrate 21, a plurality of fins 22 fixed to the heat dissipation substrate 21, and a case 23 that accommodates the fins 22.
- the fin 22 is used as a heat sink, in other words, a heat sink.
- the fin 22 can be formed as a blade fin in which a plurality of blade-shaped fins are provided in parallel to each other.
- a pin fin in which a plurality of cylindrical pins 22A shown in FIG. 5B or a plurality of prismatic pins 22B shown in FIG.
- the fin shape of the fin 22 as described above various shapes other than the blade fin and the pin fin can be used.
- the fin 22 becomes a resistance of the cooling liquid when flowing into the cooler 20, it is desirable that the fin 22 has a shape with a small pressure loss with respect to the cooling liquid.
- FIGS. 4A, 4B, and 4C the flow direction of the coolant is indicated by arrows.
- the shape and dimensions of the fins 22 are appropriately determined in consideration of the conditions for introducing the coolant into the cooler 20 (that is, pump performance, etc.), the type and properties of the coolant (particularly viscosity, etc.), the target heat removal amount, and the like. It is preferable to set. Further, the fin 22 is formed in a dimension (height) such that a certain clearance C exists between the tip of the fin 22 and the bottom wall 23 a of the case 23 when accommodated in the case 23. However, this does not exclude the configuration in which the clearance is zero.
- the fin 22 having the shape shown in FIG. 4 is attached and fixed to a predetermined region of the heat dissipation substrate 21 so as to extend in the vertical direction from the surface of the heat dissipation substrate 21. It is integrated.
- the region where the fins 22 are attached to the heat dissipation substrate 21 is preferably a region where the semiconductor elements 13 and 14 are mounted on the insulating substrate 12 in a state where the heat dissipation substrate 21 is bonded to the insulating substrate 12. This is a region including a region projected in the thickness direction. In other words, a region including a region immediately below the semiconductor elements 13 and 14 is preferable.
- a plurality of fins 22 are integrated in advance by being joined to a plate-like fin base material 22 a, and the surface of the fin base material 22 a of the integrated fin 22 and the surface of the heat dissipation board 21 are integrated.
- the heat dissipation substrate 21 and the fins 22 are integrated. Accordingly, the fins 22 are accommodated in the case 23 while being held by the fin base material 22a and the heat dissipation substrate 21.
- the fin 22 has the fin base 22a, but the fin base 22a is not essential.
- the fin 22 can be formed by die casting and integrally casting with the heat dissipation substrate 21.
- the fins 22 can be integrally formed with the heat dissipation substrate 21 by brazing the fins 22 or directly joining the heat dissipation substrate 22 by various welding methods.
- the convex portion is formed by machining into a desired fin shape by cutting or wire cutting method. You can also It is also possible to integrally form the heat dissipation substrate 21 and the fins 22 only by the press forging method.
- the outer shape of the heat sink composed of the fins 22 is a substantially rectangular parallelepiped, preferably a rectangular parallelepiped, and may be chamfered or deformed as long as the effects of the present invention are not impaired.
- the fins 22 and the heat dissipation substrate 21 are preferably made of a material having a high thermal conductivity, and a metal material is particularly preferable.
- a metal material such as aluminum, aluminum alloy, copper, or copper alloy, and for example, A1050 and A6063 are desirable. More preferably, 200 W / mk or more of aluminum can be used.
- the fin 22 and the heat dissipation substrate 21 may be the same type of metal material or different types of metal materials.
- a metal material can be used for the fin base 22a when the fin 22 is joined to the fin base 22a.
- the case 23 that accommodates the fins 22 has a bottom wall 23a and a side wall 23b provided on the periphery of the bottom wall 23a, and has a box shape with an open top. As shown in FIG. 5, the case 23 has a substantially rectangular parallelepiped shape, but is not limited to a substantially rectangular parallelepiped shape.
- the case 23 is provided with an inlet 23 c for introducing the coolant into the case 23 in the vicinity of the corner of one of the side walls 23 b on the short side,
- a discharge port 23d for discharging the coolant from the inside of the case 23 to the outside is provided in the vicinity of the diagonal of the other side wall 23b of the side walls 23b on the short side.
- a coolant introduction flow path 23e is formed in the case 23 along the side wall 23b on the long side of the case 23 from the introduction port 23c, and the long side of the case 23 from the discharge port 23d.
- a cooling liquid discharge flow path 23f is formed along the side wall 23b, and a cooling flow path 23g as a gap between the fins 22 is formed between the cooling liquid introduction flow path 23e and the cooling liquid discharge flow path 23f. Yes.
- the illustration of the notch 23k is omitted for easy understanding.
- the case 23 needs to be selected depending on the structure such as a material made of a material having a high thermal conductivity and a material when a peripheral part is taken in when forming the unit.
- materials such as A1050 and A6063 are preferable, and materials such as ADC12 and A6061 are preferable when sealing with peripheral members, in particular, an inverter case that houses a fixed portion and a power module is necessary.
- a material of DMS series which is a high thermal conductive aluminum alloy for die casting manufactured by Mitsubishi Plastics Co., Ltd. can be applied.
- the inlet 23c, the outlet 23d and the flow path in the case 23 can be formed by die casting, for example.
- the case 23 can also use a material containing a carbon filler in a metal material. Further, depending on the type of cooling liquid and the temperature of the cooling liquid flowing in the case 23, a ceramic material, a resin material, or the like can be used. In the case of joining, a ceramic material or a resin material is not used.
- the upper end of the side wall 23b of the case 23 and the end of the heat dissipation substrate 21 are joined in a liquid-tight manner along the side wall 23b.
- the coolant introduced into the case 23 from the inlet 23c is discharged from the outlet 23d through the coolant inlet channel 23e, the cooling channel 23g, and the coolant outlet channel 23f. Even when the flow is generated, the coolant is prevented from leaking from the joint between the case 23 and the heat dissipation substrate 21.
- the case 23 is formed with a notch 23 k having an L-shaped cross section at the upper end of the side wall 23 b, and the heat radiating substrate 21 fits the notch 23 k of the case 23. It has the shape and size of the end.
- the notch 23k of the case 23 is such that the upper end surface of the side wall 23b of the case 23 and the upper surface of the heat dissipation substrate 21 are flush with each other when the end of the heat dissipation member 21 is disposed in the notch 23k. It is formed with various dimensions.
- the end portion of the heat dissipation substrate 21 is disposed in the notch 23k at the upper end of the side wall 23b of the case 23. Since the notch 23k portion of the side wall 23b and the end of the heat dissipation substrate 21 are joined by a known method, the heat dissipation substrate 21 and the case 23 are joined in a liquid-tight manner.
- the joining method of the upper end of the side wall 23b of the case 23 and the end of the heat dissipation substrate 21 is a known method, which can be performed by brazing or soldering, but is a friction stir welding method (Friction Stir Welding). Is more preferable.
- a friction stir welding method By using the friction stir welding method, liquid-tight joining between the upper end of the side wall 23b of the case 23 and the end of the heat dissipation substrate 21 can be ensured.
- a portion extending from the upper surface of the case 23 in the thickness direction of the heat radiating board at the joint interface between the notch 23k of the side wall 23b and the heat radiating board 21 is joined.
- the tool of the friction stir welding method can be applied from above toward the joining interface between the case 23 and the heat radiating substrate 21 while supporting the bottom surface of the case 23, so that reliable joining is possible. It becomes. Further, by joining by the friction stir welding method, as a material for the heat dissipation substrate 21 and the case 23, for example, A6063 and DMS series alloys, HT-1 which is a high heat conductive aluminum alloy for die casting at Daiki Aluminum Industry, etc. Heat dissipation can be improved by using a high-rate material.
- the heat dissipation substrate 21 can have a flat plate shape.
- the end portion of the heat dissipation substrate 21 or the portion to which the fins 22 are joined needs to be processed to make the thickness different from other portions. Therefore, manufacturing is easy and there is no cost increase.
- the heat dissipation board 21 in a flat plate shape, when the heat dissipation board 21 and the fins 22 are integrally formed by die casting, press forging, or cutting, the fine fins 22 are formed relatively easily and accurately. be able to.
- the heat dissipation substrate 21 has a predetermined thickness, it can be provided with reliability against deformation and good heat dissipation.
- the thickness of the heat dissipation substrate 21 is preferably 1 to 3 mm in a region where fins are joined, for example.
- a pump (not shown) is connected to the inlet 23c, a heat exchanger (not shown) is connected to the outlet 23d, and a closed-loop coolant flow path including the cooler 20, the pump, and the heat exchanger is formed. Composed.
- the cooling liquid is forcedly circulated in such a closed loop by a pump.
- the coolant water, long life coolant (LLC), or the like can be used.
- the heat generated in the semiconductor elements 13 and 14 of the circuit element units 11A to 11C shown in FIGS. 1 and 2 during the operation of the power conversion circuit shown in FIG. Is transmitted to the heat dissipation substrate 21 bonded to the heat dissipation substrate 21, and is transmitted to the fins 22 bonded to the heat dissipation substrate 21. Since the cooling channel 23g is formed as the gap between the fins 22 in the case 23 as described above, the cooling liquid is circulated through the cooling channel 23g, so that the heat sink constituted by the fins 22 is To be cooled. The heat generated in the circuit element portions 11A to 11C in this way is cooled by the cooler 20.
- FIG. 6 is a sectional view showing a semiconductor device 2 according to another embodiment of the present invention.
- the same members as those of the semiconductor device 1 of FIG. 2 are denoted by the same reference numerals, and redundant description of these members will be omitted below.
- the cross-sectional shape of the heat dissipation substrate 24 constituting the cooler 20 is L-shaped, and is different from the heat dissipation substrate 21 of the semiconductor device 1 of FIG. 2.
- the thickness t1 of the portion (fin region) where the fin 22 is joined to the heat dissipation substrate 24 via the fin base 22a is greater than the thickness t2 of the peripheral portion (peripheral region) of the fin region. Is also thinner.
- the case 23 is formed with a notch 23k having an L-shaped cross section at the upper end of the side wall 23b. When the notch 23k is arranged so that the end of the heat dissipation member 24 is placed on the notch 23k of the case 23, the upper end surface of the side wall 23b of the case 23, the upper surface of the heat dissipation substrate 24, Are formed so as to have the same plane. An end portion of the heat dissipation substrate 24 and an upper end of the side wall 23b of the case 23 are liquid-tightly joined by a known method along the side wall 23b.
- the joining method of the upper end of the side wall 23b of the case 23 and the end of the heat dissipation substrate 24 is a known method, which can be performed by brazing or soldering, but is a friction stir welding method (Friction Stir Welding). Is more preferable.
- a friction stir welding method By using the friction stir welding method, liquid-tight joining between the upper end of the side wall 23b of the case 23 and the end of the heat dissipation substrate 24 can be ensured.
- a portion extending in the thickness direction of the heat dissipation board from the upper surface of the case at the joining interface between the notch 23k of the side wall 23b and the heat dissipation board 24 is joined.
- the tool of the friction stir welding method can be applied from above toward the joining interface between the case 23 and the heat dissipation substrate 24 while supporting the bottom surface of the case 23, so that reliable joining is possible. It becomes. Further, by joining by the friction stir welding method, as a material of the heat dissipation substrate 24 and the case 23, for example, A6063 and DMS series alloys, HT-1 which is a high heat conduction aluminum alloy for die casting at Daiki Aluminum Industry, etc. Heat dissipation can be improved by using a high-rate material.
- substrate 24 can improve heat dissipation. Further, the heat dissipation substrate 24 can have reliability against deformation because the peripheral region has a predetermined thickness.
- the thickness of the heat dissipation substrate 24 is preferably 1 to 3 mm in a region where fins are joined, for example.
- a step of joining the heat dissipation substrate 21 of the cooler 20 and the case 23 is included. Before performing this step, the insulating substrate 12 and the fins 22 are bonded to the heat dissipation substrate 21, and the semiconductor elements 13 and 14 are mounted on the insulating substrate 12.
- a case 23 is prepared in which the upper end of the side wall 23b is formed into a shape having a notch 23k over one circumference.
- this notch may be formed at the time of this die casting. However, it can also be formed by performing processing such as cutting after die casting. Since the end portion of the heat dissipation substrate 21 is disposed in the notch 23k of the case 23 and the notch 23k portion and the end portion of the heat dissipation substrate 21 are joined by a known method, the heat dissipation substrate 21 and the case 23 is liquid-tightly joined. This liquid-tight joining is preferably performed by a friction stir welding method.
- the semiconductor device 2 shown in FIG. 6 can be manufactured in the same manner as described above.
- the comparative example is a conventional semiconductor device and is shown in a sectional view in FIG.
- the semiconductor device 101 shown in FIG. 7 has a structure in which the semiconductor module 110 has a total of six circuit element units in two rows and three columns in the vertical direction with respect to the cooler 120 in the flow direction of the coolant flowing between the fins 122. It is. Since FIG. 7 is a cross-sectional view, three circuit element portions 111A to 111C among these circuit element portions are shown.
- the circuit element portions 111A to 111C have the same structure as the circuit element portions 11A to 11C of the embodiment of the present invention shown in FIG. 2, and the same reference numerals as those in FIG. In the following, redundant description of these configurations will be omitted.
- the heat dissipation substrate 121 and the case 123 are hermetically sealed through a seal member 123s, and an aluminum material is applied to each.
- the heat dissipation substrate 121 four types of 5 mm, 3.5 mm, 2.5 mm, and 1.5 mm were used with a uniform thickness.
- an aluminum material having a thermal conductivity of 170 W / mk is applied because there are restrictions on materials that can be used for the heat dissipation substrate 121.
- the clearance C between the tip of the fin 122 and the case 123 is set to 1.5 mm.
- the heat generation temperature of the semiconductor elements 13 and 14 of the semiconductor element is expressed by the thickness 5mm and 3.5mm of the heat dissipation substrate 121 described above. , 2.5 mm, and 1.5 mm were compared using thermal fluid simulation. The result is shown in FIG.
- FIG. 8 shows a comparison of the thermal resistance between the junction temperature at the top of the semiconductor elements 13 and 14 and the water temperature at the inlet in a steady state in which the antifreeze is circulated at a constant flow rate of 10 L / min and given a constant loss. It is the result. According to this result, it is possible to reduce the thermal resistance by 10% by reducing the thickness of the heat dissipation substrate 121 to 1.5 mm.
- the thermal conductivity of the material of the heat dissipation substrate 121 is 170 W / mk, which is a material having a higher thermal conductivity than the material of the insulating substrate or the solder material, but the thermal conductivity in the height direction rather than the heat spread. It is presumed that this effect was achieved.
- the height of the entire base which is the height from the upper surface of the heat dissipation substrate 121 to the tip of the fin 22, can be reduced without changing the height of the fin 22, and the cooler The entire volume can be reduced.
- the embodiment describes a preferred example of the cooler 20 in which the heat dissipation board 21 and the case 23 are integrated in order to improve the heat dissipation of the cooler 20 for the semiconductor module 10. .
- the basic structure is the same as the structure shown in FIG. 1, and the seal member is omitted by mechanical joining.
- the heat dissipation substrate 121 and the case 123 are sealed via a sealing member.
- This seal member is, for example, an O-ring or a metal gasket.
- strength hardness
- thickness required for the material of the heat dissipation board in order to ensure sealing performance (liquid tightness).
- the type of material may affect the thermal conductivity, and it has been difficult to achieve both high thermal conductivity.
- a material having a thermal conductivity of about 170 W / mk must be used. Therefore, in the examples, mechanical joining, such as a thermal diffusion method and a friction stir welding method, was used.
- a seal member can be omitted, and a material having a thermal conductivity of 200 W / mk or more can be applied to the material of the heat dissipation substrate 21 and the thickness can be reduced, so that high heat dissipation can be achieved.
- a material having a thermal conductivity of 200 W / mk or more can be applied to the material of the heat dissipation substrate 21 and the thickness can be reduced, so that high heat dissipation can be achieved.
- it is not restricted to mechanical joining, You may join by performing brazing.
- the heat dissipation substrate 21 and the case 23 are integrated, the clearance C between the tip of the fin 22 and the case 23 is reduced in the thermal deformation and the spread at the time of pressure application, and the cooling liquid can be effectively used.
- by eliminating the sealing member it is possible to reduce the number of assembling steps and the number of steps to pay attention to the surface roughness of the sealing surface, which is advantageous in terms of cost.
- the thermal fluid is obtained for three levels of clearance: 1.5 mm, 0.5 mm, and 0 mm, and two levels of thermal conductivity of 170 W / mk and 210 W / mk. Comparison was made using simulation.
- the heat dissipation structure to be compared here was such that the heat dissipation substrate thickness of the cooling unit was 2.5 mm and the fin height was constant 10 mm, and the conditions such as the coolant conditions were the same as those in the comparative example.
- the clearance C between the fin tip and the case is controlled, and the coolant is effectively utilized, so that the coolant temperature at the junction-inlet position is used as a reference. It can be confirmed that the thermal resistance is improved by about 12%.
- the clearance C is narrower than the interval between the fins 22, so that the cooling liquid escapes to the clearance region.
- the means for controlling the material change and the clearance C of the heat dissipation board is an effect obtained by joining the case 23 and the heat dissipation board 21 in whole or in part, but these are not limited to heat dissipation, In view of the influence of thermal stress generated by this heat on reliability, the structure can be expected to improve strength by integration.
Landscapes
- Engineering & Computer Science (AREA)
- Computer Hardware Design (AREA)
- Microelectronics & Electronic Packaging (AREA)
- Power Engineering (AREA)
- Physics & Mathematics (AREA)
- Condensed Matter Physics & Semiconductors (AREA)
- General Physics & Mathematics (AREA)
- Cooling Or The Like Of Semiconductors Or Solid State Devices (AREA)
- Cooling Or The Like Of Electrical Apparatus (AREA)
Abstract
Description
また、絶縁基板を介してパワー半導体素子と放熱用の放熱基板とが接合され、この放熱基板の外周部の厚みを維持し絶縁基板との接合部の厚みだけを薄くした構造は、構造を複雑にするなどの問題から加工コストへの負荷が大きくなっていた。
更に、接合する放熱基板や絶縁基板の材料の改善や、それらの接合部に応力緩和材料を設けるなどの改善も考えられるが、何れもプロセス工数の増加などコストへの影響が大きく、コストへの影響を最低限に放熱性改善と信頼性向上を両立することは困難であった。
この半導体装置は、絶縁基板と、絶縁基板上に搭載された半導体素子と、半導体素子を冷却する冷却器とを備える。冷却器は、絶縁基板に接合される放熱基板と、放熱基板における絶縁基板との接合面とは反対側の面に設けられた複数のフィンと、これらのフィンを収容するとともに冷却液の導入口及び排出口が設けられたケースとを有している。ケース側壁の上端部に設けられた切り欠きに放熱基板の端部が配設されて放熱基板とケースとは液密に接合されている。
図1に斜視図で、図2に断面図で示す本発明の一実施形態の半導体装置1は、半導体モジュール10と、この半導体モジュールを冷却する冷却器20とを備えている。半導体モジュール10は、図示した本実施形態では、冷却器20の上に配置された複数の回路素子部11A、11B、11Cを有している。これらの回路素子部11A、11B、11Cにより、半導体モジュール10は、例えば三相インバータ回路が構成されている。
図1及び図2に示した半導体装置1を製造するに当たっては、冷却器20の放熱基板21とケース23とを接合する工程を含む。この工程を行う前には、放熱基板21には、絶縁基板12とフィン22が接合されていて、また、この絶縁基板12上には半導体素子13、14が搭載されている。
(比較例)
比較例は、従来の半導体装置であって図7に断面図で示す。図7に示す半導体装置101は、半導体モジュール110が冷却器120に対し、フィン122間を流れる冷却液の流れる方向に対し2行、その垂直方向に3列の計6つの回路素子部を有する構造である。図7は断面図であるので、これらの回路素子部のうちの3つの回路素子部111A~111Cが示されている。これらの回路素子部111A~111Cの構成は、図2に示した本発明の実施形態の回路素子部11A~11Cと同じ構成を有していて、図7では図2と同じ符号を付しており、以下ではこれらの構成について重複する説明は省略する。
上述した比較例との対比で、実施例は、半導体モジュール10用の冷却器20の放熱性を向上させるため、放熱基板21とケース23とを一体化した冷却器20の好適な例について説明する。基本構造は図1に記載の構造と同様であり、機械的な接合によりシール部材を省いた構成である。
そこで、実施例では、機械的な接合、例えば熱拡散法、摩擦攪拌接合法などを用いた。これにより、シール部材を省くことができ、放熱基板21の材料に、熱伝導率が200W/mk以上の材料を適用でき、厚さも薄くできるので、高放熱化が可能になる。なお、機械的な接合に限られず、ロウ付けを行って接合してもよい。
さらに、シール部材を省くことで、組立て工数の削減やシール面の面粗度に注意を払う工程を少なくすることができるため、コスト性にメリットがある。
10 半導体モジュール
11A、11B、11C 回路素子部
12 絶縁基板
12a 絶縁層
12b、12c 導体層
13、14 半導体素子
15、16 接合層
17 樹脂ケース
20 冷却器
21 放熱基板
22 フィン
22a フィン基材
23 ケース
23b 側壁
23c 導入口
23d 排出口
23e 冷却液導入流路
23f 冷却液排出流路
23g 冷却用流路
23k 切り欠き
12 絶縁基板
40 インバータ回路
41 三相交流モータ
C クリアランス
Claims (7)
- 絶縁基板と、該絶縁基板上に搭載された半導体素子と、該半導体素子を冷却する冷却器とを備える半導体装置であって、
前記冷却器が、該絶縁基板に接合される放熱基板と、該放熱基板における該絶縁基板との接合面とは反対側の面に設けられた複数のフィンと、該フィンを収容するとともに冷却液の導入口及び排出口が設けられたケースとを有し、かつ、該ケース側壁の上端部に設けられた切り欠きに前記放熱基板の端部が配設されて該放熱基板と該ケースとが液密に接合されたことを特徴とする半導体装置。 - 前記放熱基板と前記ケースとが摩擦攪拌接合で接合されてなる請求項1記載の半導体装置。
- 前記放熱基板が、前記ケースの熱伝導率と同等以上の熱伝導率を有する材料からなる請求項1記載の半導体装置。
- 前記フィンが、ブレード形状及びピン形状から選ばれるいずれかの形状を有する請求項1記載の半導体装置。
- 前記フィンの先端が、前記ケースの底面に近接している請求項1記載の半導体装置。
- 絶縁基板と、該絶縁基板上に搭載された半導体素子と、該半導体素子を冷却する冷却器とを備える半導体装置の該冷却器が有する放熱基板、複数のフィン及びケースのうちの該放熱基板と該ケースとを接合する工程を含む半導体装置の製造方法であって、
前記ケース側壁の上端に切り欠きを形成した前記ケースを用意し、該ケースの該切り欠きに前記放熱基板の端部を配設して該放熱基板と該ケースとを液密に接合することを特徴とする半導体装置の製造方法。 - 前記放熱基板と前記ケースとの液密な接合が、摩擦攪拌接合である請求項6記載の半導体装置の製造方法。
Priority Applications (4)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2014536683A JPWO2014045766A1 (ja) | 2012-09-19 | 2013-08-13 | 半導体装置及び半導体装置の製造方法 |
CN201380018894.0A CN104247009A (zh) | 2012-09-19 | 2013-08-13 | 半导体装置以及半导体装置的制造方法 |
DE112013004552.4T DE112013004552T8 (de) | 2012-09-19 | 2013-08-13 | Halbleitervorrichtung und Verfahren zum Herstellen einer Halbleitervorrichtung |
US14/492,790 US20150008574A1 (en) | 2012-09-19 | 2014-09-22 | Semiconductor device and method for manufacturing semiconductor device |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2012206267 | 2012-09-19 | ||
JP2012-206267 | 2012-09-19 |
Related Child Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US14/492,790 Continuation US20150008574A1 (en) | 2012-09-19 | 2014-09-22 | Semiconductor device and method for manufacturing semiconductor device |
Publications (1)
Publication Number | Publication Date |
---|---|
WO2014045766A1 true WO2014045766A1 (ja) | 2014-03-27 |
Family
ID=50341090
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/JP2013/071881 WO2014045766A1 (ja) | 2012-09-19 | 2013-08-13 | 半導体装置及び半導体装置の製造方法 |
Country Status (5)
Country | Link |
---|---|
US (1) | US20150008574A1 (ja) |
JP (1) | JPWO2014045766A1 (ja) |
CN (1) | CN104247009A (ja) |
DE (1) | DE112013004552T8 (ja) |
WO (1) | WO2014045766A1 (ja) |
Cited By (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2016207897A (ja) * | 2015-04-24 | 2016-12-08 | 株式会社Uacj | 熱交換器 |
JP2017005181A (ja) * | 2015-06-15 | 2017-01-05 | 三菱電機株式会社 | 電力半導体装置用冷却装置及びその製造方法 |
WO2017069005A1 (ja) * | 2015-10-20 | 2017-04-27 | 三菱電機株式会社 | 電力半導体装置の製造方法および電力半導体装置 |
JP2018084728A (ja) * | 2016-11-25 | 2018-05-31 | セイコーエプソン株式会社 | 光学装置およびプロジェクター |
JP2020061399A (ja) * | 2018-10-05 | 2020-04-16 | 昭和電工株式会社 | 冷却器、そのベース板および半導体装置 |
CN114050198A (zh) * | 2021-09-30 | 2022-02-15 | 北京大学 | 一种基于半导体材料的辐射热流调控器件及其应用 |
US12068174B2 (en) | 2019-07-25 | 2024-08-20 | Hitachi Energy Ltd | Arrangement of a power semiconductor module and a cooler |
Families Citing this family (32)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE112014000898T5 (de) * | 2013-09-05 | 2015-11-26 | Fuji Electric Co., Ltd. | Leistungshalbleitermodul |
DE202014106063U1 (de) * | 2014-12-16 | 2015-02-12 | Danfoss Silicon Power Gmbh | Kühlwanne, Kühler und Leistungsmodulbaugruppe |
WO2016121159A1 (ja) * | 2015-01-26 | 2016-08-04 | 三菱電機株式会社 | 半導体装置および半導体装置の製造方法 |
CN107615479B (zh) * | 2015-06-03 | 2020-08-11 | 三菱电机株式会社 | 液冷冷却器中的散热翅片的制造方法 |
US9713284B2 (en) * | 2015-07-15 | 2017-07-18 | Hong Kong Applied Science And Technology Research Institute Co. Ltd. | Locally enhanced direct liquid cooling system for high power applications |
CN205213228U (zh) * | 2015-10-30 | 2016-05-04 | 比亚迪股份有限公司 | 散热器底板以及具有其的散热器和igbt模组 |
EP3163611B1 (en) * | 2015-11-02 | 2021-06-30 | ABB Schweiz AG | Power electronic assembly |
CN105278222A (zh) * | 2015-11-19 | 2016-01-27 | 华蓥市双河第三小学 | 一种风冷水冷式投影仪 |
CN105278223A (zh) * | 2015-11-19 | 2016-01-27 | 华蓥市双河第三小学 | 一种多媒体教学用投影仪 |
CN105278221A (zh) * | 2015-11-19 | 2016-01-27 | 华蓥市双河第三小学 | 一种高效散热的投影仪 |
CN105334685A (zh) * | 2015-11-19 | 2016-02-17 | 华蓥市双河第三小学 | 一种投影仪灯泡 |
CN105278219A (zh) * | 2015-11-19 | 2016-01-27 | 华蓥市双河第三小学 | 一种投影仪 |
JP6463505B2 (ja) * | 2015-11-25 | 2019-02-06 | 三菱電機株式会社 | 半導体装置、インバータ装置及び自動車 |
CN107084550A (zh) * | 2016-02-16 | 2017-08-22 | 广东富信科技股份有限公司 | 半导体制冷组件及冰淇淋机 |
US9935106B2 (en) * | 2016-04-01 | 2018-04-03 | Globalfoundries Inc. | Multi-finger devices in mutliple-gate-contacted-pitch, integrated structures |
JP6579037B2 (ja) * | 2016-05-30 | 2019-09-25 | 日本軽金属株式会社 | パワーデバイス用冷却器の製造方法 |
CN109219880B (zh) * | 2016-12-20 | 2022-06-14 | 富士电机株式会社 | 半导体模块 |
CN106876343A (zh) * | 2017-01-22 | 2017-06-20 | 上海道之科技有限公司 | 一种集成水冷散热器的功率模块 |
WO2018146816A1 (ja) * | 2017-02-13 | 2018-08-16 | 新電元工業株式会社 | 電子機器 |
JP6743916B2 (ja) * | 2017-02-13 | 2020-08-19 | 富士電機株式会社 | 半導体装置及び半導体装置の製造方法 |
WO2018198522A1 (ja) * | 2017-04-27 | 2018-11-01 | 富士電機株式会社 | 電子部品及び電力変換装置 |
CN107275291A (zh) * | 2017-07-17 | 2017-10-20 | 上海道之科技有限公司 | 一种水冷绝缘栅双极型晶体管igbt模块 |
CN107359143A (zh) * | 2017-07-17 | 2017-11-17 | 上海道之科技有限公司 | 一种绝缘栅双极型晶体管模块 |
JP2019033624A (ja) * | 2017-08-09 | 2019-02-28 | 株式会社デンソー | 電力変換装置 |
US10665525B2 (en) * | 2018-05-01 | 2020-05-26 | Semiconductor Components Industries, Llc | Heat transfer for power modules |
US10900412B2 (en) * | 2018-05-31 | 2021-01-26 | Borg Warner Inc. | Electronics assembly having a heat sink and an electrical insulator directly bonded to the heat sink |
EP3761356B1 (en) * | 2018-10-03 | 2024-07-10 | Fuji Electric Co., Ltd. | Semiconductor apparatus |
US11129310B2 (en) * | 2018-11-22 | 2021-09-21 | Fuji Electric Co., Ltd. | Semiconductor module, vehicle and manufacturing method |
US11145571B2 (en) * | 2019-06-04 | 2021-10-12 | Semiconductor Components Industries, Llc | Heat transfer for power modules |
CN112292007A (zh) * | 2020-11-02 | 2021-01-29 | 阳光电源股份有限公司 | 水冷散热装置及电器装置 |
EP4187591A1 (en) * | 2021-11-26 | 2023-05-31 | Hitachi Energy Switzerland AG | Baseplate and method for manufacturing a baseplate for a power module and semiconductor device |
KR102627492B1 (ko) * | 2022-02-14 | 2024-01-19 | 부산대학교 산학협력단 | 전자 부품용 냉각 장치 |
Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2006115073A1 (ja) * | 2005-04-21 | 2006-11-02 | Nippon Light Metal Company, Ltd. | 液冷ジャケット |
JP2010194545A (ja) * | 2009-02-23 | 2010-09-09 | Nippon Light Metal Co Ltd | 液冷ジャケットの製造方法 |
JP2012044140A (ja) * | 2010-07-23 | 2012-03-01 | Fuji Electric Co Ltd | 半導体装置 |
Family Cites Families (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2003101277A (ja) * | 2001-09-26 | 2003-04-04 | Toyota Motor Corp | 発熱素子冷却用構造体及びその製造方法 |
JP5120605B2 (ja) * | 2007-05-22 | 2013-01-16 | アイシン・エィ・ダブリュ株式会社 | 半導体モジュール及びインバータ装置 |
-
2013
- 2013-08-13 JP JP2014536683A patent/JPWO2014045766A1/ja active Pending
- 2013-08-13 WO PCT/JP2013/071881 patent/WO2014045766A1/ja active Application Filing
- 2013-08-13 CN CN201380018894.0A patent/CN104247009A/zh active Pending
- 2013-08-13 DE DE112013004552.4T patent/DE112013004552T8/de not_active Expired - Fee Related
-
2014
- 2014-09-22 US US14/492,790 patent/US20150008574A1/en not_active Abandoned
Patent Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2006115073A1 (ja) * | 2005-04-21 | 2006-11-02 | Nippon Light Metal Company, Ltd. | 液冷ジャケット |
JP2010194545A (ja) * | 2009-02-23 | 2010-09-09 | Nippon Light Metal Co Ltd | 液冷ジャケットの製造方法 |
JP2012044140A (ja) * | 2010-07-23 | 2012-03-01 | Fuji Electric Co Ltd | 半導体装置 |
Cited By (9)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2016207897A (ja) * | 2015-04-24 | 2016-12-08 | 株式会社Uacj | 熱交換器 |
JP2017005181A (ja) * | 2015-06-15 | 2017-01-05 | 三菱電機株式会社 | 電力半導体装置用冷却装置及びその製造方法 |
WO2017069005A1 (ja) * | 2015-10-20 | 2017-04-27 | 三菱電機株式会社 | 電力半導体装置の製造方法および電力半導体装置 |
JP2018084728A (ja) * | 2016-11-25 | 2018-05-31 | セイコーエプソン株式会社 | 光学装置およびプロジェクター |
JP2020061399A (ja) * | 2018-10-05 | 2020-04-16 | 昭和電工株式会社 | 冷却器、そのベース板および半導体装置 |
JP7126423B2 (ja) | 2018-10-05 | 2022-08-26 | 昭和電工株式会社 | 冷却器、そのベース板および半導体装置 |
US12068174B2 (en) | 2019-07-25 | 2024-08-20 | Hitachi Energy Ltd | Arrangement of a power semiconductor module and a cooler |
CN114050198A (zh) * | 2021-09-30 | 2022-02-15 | 北京大学 | 一种基于半导体材料的辐射热流调控器件及其应用 |
CN114050198B (zh) * | 2021-09-30 | 2024-05-17 | 北京大学 | 一种基于半导体材料的辐射热流调控器件及其应用 |
Also Published As
Publication number | Publication date |
---|---|
JPWO2014045766A1 (ja) | 2016-08-18 |
DE112013004552T5 (de) | 2015-06-03 |
DE112013004552T8 (de) | 2015-07-30 |
CN104247009A (zh) | 2014-12-24 |
US20150008574A1 (en) | 2015-01-08 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
WO2014045766A1 (ja) | 半導体装置及び半導体装置の製造方法 | |
US9263367B2 (en) | Semiconductor device | |
JP6341285B2 (ja) | 半導体装置 | |
US10304756B2 (en) | Power semiconductor module and cooler | |
JP5975110B2 (ja) | 半導体装置 | |
JP5046378B2 (ja) | パワー半導体モジュール、および該モジュールを搭載したパワー半導体デバイス | |
JP5565459B2 (ja) | 半導体モジュール及び冷却器 | |
JP6315091B2 (ja) | 冷却器及び冷却器の固定方法 | |
JP6093186B2 (ja) | 半導体モジュール用冷却器 | |
US20160129792A1 (en) | Method for manufacturing cooler for semiconductor-module, cooler for semiconductor-module, semiconductor-module and electrically-driven vehicle | |
WO2013157467A1 (ja) | 半導体装置および半導体装置用冷却器 | |
WO2015033724A1 (ja) | 電力用半導体モジュール | |
JP5343574B2 (ja) | ヒートシンクのろう付け方法 | |
WO2020105407A1 (ja) | パワー半導体装置 | |
JP5267238B2 (ja) | 半導体装置及び半導体装置の製造方法 | |
EP3890009A1 (en) | Power module of double-faced cooling with bonding layers including anti-tilting members | |
JP7367418B2 (ja) | 半導体モジュールおよび車両 | |
JP6870253B2 (ja) | 半導体装置及び半導体装置の製造方法 | |
WO2019142543A1 (ja) | パワー半導体装置 | |
WO2014045758A1 (ja) | パワー半導体モジュール | |
JP2010062491A (ja) | 半導体装置および複合半導体装置 | |
JP2022019040A (ja) | 電力変換装置 | |
JP7205662B2 (ja) | 半導体モジュール | |
WO2022209083A1 (ja) | パワー半導体装置 | |
CN118451545A (zh) | 冷却器单元、半导体器件和用于制造冷却器单元的方法 |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
121 | Ep: the epo has been informed by wipo that ep was designated in this application |
Ref document number: 13840094 Country of ref document: EP Kind code of ref document: A1 |
|
ENP | Entry into the national phase |
Ref document number: 2014536683 Country of ref document: JP Kind code of ref document: A |
|
WWE | Wipo information: entry into national phase |
Ref document number: 1120130045524 Country of ref document: DE Ref document number: 112013004552 Country of ref document: DE |
|
122 | Ep: pct application non-entry in european phase |
Ref document number: 13840094 Country of ref document: EP Kind code of ref document: A1 |