WO2008096839A1 - 半導体素子の冷却構造 - Google Patents
半導体素子の冷却構造 Download PDFInfo
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- WO2008096839A1 WO2008096839A1 PCT/JP2008/052094 JP2008052094W WO2008096839A1 WO 2008096839 A1 WO2008096839 A1 WO 2008096839A1 JP 2008052094 W JP2008052094 W JP 2008052094W WO 2008096839 A1 WO2008096839 A1 WO 2008096839A1
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- semiconductor element
- heat storage
- heat
- cooling structure
- storage member
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- 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
- H01L23/345—Arrangements for heating
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- H01L23/00—Details of semiconductor or other solid state devices
- H01L23/34—Arrangements for cooling, heating, ventilating or temperature compensation ; Temperature sensing arrangements
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- H01L23/00—Details of semiconductor or other solid state devices
- H01L23/34—Arrangements for cooling, heating, ventilating or temperature compensation ; Temperature sensing arrangements
- H01L23/42—Fillings or auxiliary members in containers or encapsulations selected or arranged to facilitate heating or cooling
- H01L23/427—Cooling by change of state, e.g. use of heat pipes
- H01L23/4275—Cooling by change of state, e.g. use of heat pipes by melting or evaporation of solids
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- H01L24/00—Arrangements for connecting or disconnecting semiconductor or solid-state bodies; Methods or apparatus related thereto
- H01L24/01—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
- H01L24/34—Strap connectors, e.g. copper straps for grounding power devices; Manufacturing methods related thereto
- H01L24/36—Structure, shape, material or disposition of the strap connectors prior to the connecting process
- H01L24/37—Structure, shape, material or disposition of the strap connectors prior to the connecting process of an individual strap connector
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- H01L24/34—Strap connectors, e.g. copper straps for grounding power devices; Manufacturing methods related thereto
- H01L24/39—Structure, shape, material or disposition of the strap connectors after the connecting process
- H01L24/40—Structure, shape, material or disposition of the strap connectors after the connecting process of an individual strap connector
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- H01L24/84—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 strap connector
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- H01L2224/26—Layer connectors, e.g. plate connectors, solder or adhesive layers; Manufacturing methods related thereto
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- H01L2224/36—Structure, shape, material or disposition of the strap connectors prior to the connecting process
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- H01L2224/37001—Core members of the connector
- H01L2224/37099—Material
- H01L2224/371—Material with a principal constituent of the material being a metal or a metalloid, e.g. boron [B], silicon [Si], germanium [Ge], arsenic [As], antimony [Sb], tellurium [Te] and polonium [Po], and alloys thereof
- H01L2224/37138—Material with a principal constituent of the material being a metal or a metalloid, e.g. boron [B], silicon [Si], germanium [Ge], arsenic [As], antimony [Sb], tellurium [Te] and polonium [Po], and alloys thereof the principal constituent melting at a temperature of greater than or equal to 950°C and less than 1550°C
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- H01L2224/401—Disposition
- H01L2224/40135—Connecting between different semiconductor or solid-state bodies, i.e. chip-to-chip
- H01L2224/40137—Connecting between different semiconductor or solid-state bodies, i.e. chip-to-chip the bodies being arranged next to each other, e.g. on a common substrate
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- H01L2224/40135—Connecting between different semiconductor or solid-state bodies, i.e. chip-to-chip
- H01L2224/40137—Connecting between different semiconductor or solid-state bodies, i.e. chip-to-chip the bodies being arranged next to each other, e.g. on a common substrate
- H01L2224/40139—Connecting between different semiconductor or solid-state bodies, i.e. chip-to-chip the bodies being arranged next to each other, e.g. on a common substrate with an intermediate bond, e.g. continuous strap daisy chain
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- H01L2224/404—Connecting portions
- H01L2224/40475—Connecting portions connected to auxiliary connecting means on the bonding areas
- H01L2224/40491—Connecting portions connected to auxiliary connecting means on the bonding areas being an additional member attached to the bonding area through an adhesive or solder, e.g. buffer pad
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- 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
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- H01L2924/0001—Technical content checked by a classifier
- H01L2924/00014—Technical content checked by a classifier the subject-matter covered by the group, the symbol of which is combined with the symbol of this group, being disclosed without further technical details
Definitions
- the present invention relates to a semiconductor element cooling structure, and more particularly to a semiconductor element cooling structure using a latent heat storage material.
- Patent Document 1 in a cooling system for a hybrid vehicle, an internal combustion engine including particles including a latent heat storage material that changes phase at a cooling target temperature of a motor and an inverter, and an engine It describes that particles containing a latent heat storage material that changes phase at the cooling target temperature of the system are mixed in the refrigerant.
- Patent Document 2 Japanese Patent Laying-Open No. 2000-116505 describes that a latent heat storage material is used for cooling a heating element of a cooking device.
- Patent Document 3 Japanese Patent Application Laid-Open No. 6-1-1286 (Patent Document 3) describes that the heat of an inverter is absorbed by a heat storage material and the heat is used for heating.
- Patent Document 4 Japanese Patent Application Laid-Open No. 9-223576 (Patent Document 4) describes that the heat generated in the main circuit of the rice cooker is absorbed by the heat storage material injected into the radiating fins.
- Patent Document 5 JP-A-6 1-7378 (Patent Document 5) describes a specific example of a latent heat storage material.
- a cooling structure in which a semiconductor element is mounted on a heat sink cooling in a steady state is performed by the heat sink.
- the amount of heat generated by a semiconductor device may increase rapidly in a short time. If this large amount of heat is absorbed using only a heat sink, the volume of the heat sink increases and the thermal resistance increases. Therefore, there is a problem that the steady cooling performance is lowered. Therefore, a structure capable of absorbing heat generation that increases in a short time while suppressing the increase in the heat sink volume is required.
- a latent heat storage material mainly uses absorption of heat accompanying the phase change of a substance.
- Patent Documents 1 to 5 do not disclose a configuration that can sufficiently solve the above problems.
- Patent Document 1 describes that only a latent heat storage material is mixed in the refrigerant, and that a portion that absorbs steady heat generation and a portion that absorbs rapid heat generation in a short time are provided separately. It has not been. Disclosure of the invention
- An object of the present invention is to provide a semiconductor element cooling structure capable of absorbing heat generation even when the heat generation amount of a semiconductor element increases rapidly in a short time while suppressing an increase in the volume of a heat sink. It is in.
- a semiconductor element cooling structure includes a semiconductor element, a heat sink on which the semiconductor element is mounted, and a heat storage material including a latent heat storage material attached to the semiconductor element so as to be located on the opposite side of the heat sink with respect to the semiconductor element.
- a member
- the heat storage member includes a conductive outer shell body and a latent heat storage material stored in the outer shell body, and the semiconductor element and other parts are interposed via the outer shell body. Are electrically connected.
- the heat storage member is connected to another component via a heat transfer member having a higher thermal conductivity than air.
- a stress absorbing portion capable of relieving stress generated in the heat storage member fixed to the semiconductor element is formed in the heat storage member.
- the semiconductor element is included in a control device that controls a rotating electrical machine that drives a vehicle.
- the heat generation can be absorbed even when the heat generation amount of the semiconductor element increases rapidly in a short time while suppressing the increase in the volume of the heat sink.
- FIG. 1 is a circuit diagram showing a configuration of a main part of PCU to which a semiconductor element cooling structure according to one embodiment of the present invention is applied.
- FIG. 2 is a cross-sectional view showing a cooling structure of a semiconductor device according to one embodiment of the present invention.
- Figure 3 is a graph illustrating the relationship between the temperature of the latent heat storage material and the amount of heat absorbed.
- FIG. 4 is a cross-sectional view showing a modified example of the cooling structure for a semiconductor device according to one embodiment of the present invention.
- FIG. 5 is a cross-sectional view showing another modified example of the cooling structure for a semiconductor device according to one embodiment of the present invention.
- FIG. 6 is a diagram illustrating a cooling structure of a semiconductor element cooling structure according to an embodiment of the present invention.
- FIG. 7 is a top view showing an example of a state in which a semiconductor element is mounted on the heat sink shown in FIG. BEST MODE FOR CARRYING OUT THE INVENTION
- FIG. 1 is a circuit diagram showing a configuration of a main part of a PCU to which a semiconductor element cooling structure according to one embodiment of the present invention is applied.
- the PCU 100 shown in FIG. 1 is a “control device for a rotating electrical machine that drives a vehicle”.
- PCU 100 includes a converter 110, inverters 120 and 130, a control device 140, and capacitors C1 and C2.
- Converter 110 is connected between battery B and inverters 120 and 130, and inverters 120 and 130 are connected to motor generators MG1 and MG2, respectively.
- Converter 110 includes power transistors Q 1 and Q 2, diodes D 1 and D 2, and a rear tuttle L.
- the power transistors Q l and Q 2 are connected in series and receive a control signal from the control device 140 as a base.
- the diodes D 1 and D 2 are connected between the collector emitters of the power transistors Q 1 and Q 2 so that current flows from the emitter side to the collector side of the power transistors Q 1 and Q 2, respectively.
- Rear tuttle L has one end connected to power supply line PL 1 connected to the positive electrode of battery B, and the other end connected to the connection point of power transistors Q 1 and Q 2.
- This converter 110 is connected to DC power received from battery B using reactor L.
- the boosted voltage is supplied to the power supply line PL2.
- Converter 1 10 steps down the DC voltage received from inverters 120 and 130 and charges battery B.
- Inverters 120 and 130 include U-phase arms 121 U and 131 U, V-phase arms 121 V and 131 V, and W-phase arms 121 W and 131 W, respectively.
- U-phase arm 121U, V-phase arm 121 V, and W-phase arm 121W are connected in parallel between node N1 and node N2.
- U-phase arm 131U, V-phase arm 131V, and W-phase arm 131W are connected in parallel between node N1 and node N2.
- U-phase arm 121U includes two power transistors Q3 and Q4 connected in series.
- U-phase arm 1 31U, V-phase arms 12 IV and 1 3 IV, and W-phase arms 121W and 13 1W each include two power transistors Q5 to Q14 connected in series.
- diodes D3 to D14 for passing current from the emitter side to the collector side are connected between the collector emitters of the power transistors Q3 to Q14, respectively.
- each phase arm of inverters 120 and 130 are connected to the phase ends of the phase coils of motor generators MG 1 and MG 2, respectively.
- motor generators MG 1 and MG 2 one end of the three coins of the U, V, and W phases is commonly connected to the midpoint.
- Capacitor C1 is connected between power supply lines PL1 and PL3, and power supply line PL
- Capacitor C2 is connected between power supply lines PL2 and PL3, and smoothes the voltage level of power supply line PL2.
- Inverters 120 and 130 convert motors MG 1 and MG 2 by converting the DC voltage from capacitor C 2 into AC voltage based on the drive signal from control device 140.
- the control device 140 calculates the phase coil voltages of the motor generators MG1 and MG2 based on the motor torque command value, the phase current values of the motor generators MG1 and MG2 ', and the input voltages of the inverters 120 and 130.
- P WM Pulse Width
- P WM Pulse Width
- control device 140 has a duty ratio of the power transistors Q l and Q 2 for optimizing the input voltage of the inverters 1 20 and 1 30 based on the motor torque command value and the motor speed described above. Based on the calculation result, the PWM signal for turning on / off the power transistors Q 1 and Q 2 is generated and output to the converter 110.
- control device 14 0 converts the AC power generated by motor generators MG 1 and MG 2 into DC power and charges battery B, so that converter 1 10 0 and inverters 1 2 0 and 1 3 0 Controls the switching operation of power transistors Q1 to Q14.
- FIG. 2 is a cross-sectional view showing the cooling structure of the semiconductor element according to the present embodiment.
- the semiconductor element cooling structure according to the present embodiment includes semiconductor element 1 and heat sink 2 on which semiconductor element 1 is mounted.
- the semiconductor element 1 is, for example, the power transistors Q 1 to Q 14 and the diodes D 1 to D 14 in FIG.
- the semiconductor element 1 is mounted on the heat sink 2 via the mounting structure 1A.
- the heat sink 2 is made of a metal having a relatively high thermal conductivity, such as a copper alloy.
- a refrigerant flow path 20 is formed in the heat sink 2. When the refrigerant flows through the refrigerant flow path 20, the semiconductor element 1 is constantly cooled.
- a heat storage member 3 is fixed to the opposite surface (hereinafter referred to as “upper surface”) of the heat sink 2 in the semiconductor element 1.
- the heat storage member 3 includes a case 3 1 and a latent heat storage material 3 2 in the case 3 1.
- Case 31 can be made of a metal having a relatively high thermal conductivity, such as copper, and good conductivity.
- the material constituting the latent heat storage material 3 2 can be changed as appropriate. For example, Sn / Zn (melting point: 1999 ° C) or dissolved salt NaOH—KOH (melting point: 1 70 ° C) Is possible.
- the thickness of the heat storage member 3 is, for example, about 4 mm to 5 mm.
- FIG. 3 is a graph illustrating the relationship between the temperature of the latent heat storage material 32 and the amount of heat absorbed.
- the temperature rises as the latent heat storage material 32 absorbs heat.
- the phase of the latent heat storage material 3 2 changes (here, the phase changes from the solid phase to the liquid phase) (that is, when the latent heat storage material 3 2 melts)
- the heat of fusion of the latent heat storage material 3 2 As a result, the endothermic condition (amount of heat: AQ) occurs with the temperature kept constant.
- the melting point T of the latent heat storage material 3 2 is set to be higher than the steady-state temperature of the semiconductor element 1 and lower than the cooling target temperature of the semiconductor element 1 during the unsteady temperature increase. To do. In this way, the semiconductor element 1 is cooled mainly by the heat sink 2 during the steady state, and the temperature of the heat storage member 3 is utilized by using the heat of fusion of the latent heat storage material 3 2 during the unsteady temperature rise. The heat generated by the semiconductor element 1 can be absorbed while the value is kept constant. As a result, the temperature rise level of the semiconductor element 1 can be reduced.
- dimples 3 3 are formed on the surface of case 31 of heat storage member 3.
- stress may be generated in the heat storage member 3 due to a difference in linear expansion coefficient between the heat storage member 3 and the semiconductor element 1.
- stress may be generated in the heat storage member 3 due to a change in its volume.
- the dimple 33 as described above, the stress generated in the heat storage member 3 is relieved.
- the heat storage member 3 and the heat sink 2 are connected by a heat transfer sheet 4 made of a metal having a relatively high thermal conductivity such as copper.
- a heat transfer sheet 4 made of a metal having a relatively high thermal conductivity such as copper.
- the heat transfer sheet 4 is not limited to a metal sheet, and the heat transfer sheet 4 can be made of any material having a higher thermal conductivity than air.
- the semiconductor is conducted through the conductive case 3 1 and the heat transfer sheet 4.
- the body element 1 and the bus bar 5 are electrically connected.
- two semiconductor elements 1 are provided, a heat storage member 3 A is provided on the upper surface of one semiconductor element 1, and a heat storage member 3 B is provided on the upper surface of the other semiconductor element 1.
- the heat storage members 3 A, 3 B and the bus bar 5 are connected by the heat transfer sheet 4.
- the two semiconductor elements 1 are, for example, the power transistor Q 3 and the diode D 3 included in the U-phase arm 1 2 1 U. According to the configuration shown in FIG.
- FIG. 6 is a perspective view showing a heat sink constituting the above-described rejection structure.
- FIG. 7 is a top view showing an example of a state in which a semiconductor element is mounted on the heat sink shown in FIG. 6 and 7, the heat sink 2 has a mounting surface 2A on which the semiconductor element 1 is mounted.
- the semiconductor device 1 power transistors Q 1 to Q 14 and diodes D 1 to D 14 included in the converter 1 1 0 and the inverters 1 2 0 and 1 3 0 is mounted on the mounting surface 2.
- the heat sink 2 has an inlet 6 and an outlet 7.
- the refrigerant cooled in the radiator (not shown) flows into the heat sink 2 from the inlet 6 and flows through the refrigerant flow path 20 formed in the heat sink 2.
- the refrigerant that has flowed through the refrigerant flow path 20 flows out from the outlet 7 force, is guided to the radiator, and is cooled again. In this way, the cooling of the semiconductor element 1 is promoted.
- the semiconductor element cooling structure includes the semiconductor element 1, the heat sink 2 on which the semiconductor element 1 is mounted, and the semiconductor element so as to be located on the opposite side of the heat sink 2 with respect to the semiconductor element 1.
- 1 includes a case 3 1 as an “outer shell” and a heat storage member 3 including a latent heat storage material 3 2.
- the heat storage member 3 is connected to the heat sink 2 as “another part” via the heat transfer sheet 4 as the heat transfer member j.
- the stress generated in the heat storage member 3 fixed to the semiconductor element 1 The heat storage member 3 is formed with dimples 3 3 as “stress absorbing portions” that can relieve heat.
- the semiconductor element 1 and the bus bar 5 as “another part” are electrically connected via the conductive case 3 1.
- the semiconductor element cooling structure As described above, while the semiconductor element 1 is constantly cooled by the heat sink 2, the heat generation amount of the semiconductor element 1 rapidly increases in a short time. In this case, the amount of heat can be absorbed by the phase change of the latent heat storage material 3. Therefore, it is possible to improve the cooling performance of the semiconductor element 1 while suppressing the heat sink 2 from becoming excessively large.
- the embodiments of the present invention have been described above, the embodiments disclosed this time should be considered as illustrative in all points and not restrictive.
- the scope of the present invention is defined by the terms of the claims, and is intended to include any modifications within the scope and meaning equivalent to the terms of the claims.
- the present invention can be applied to, for example, a semiconductor element cooling structure using a latent heat storage material.
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- 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
Claims
Priority Applications (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE112008000371T DE112008000371B8 (de) | 2007-02-08 | 2008-02-04 | Halbleiterelement-Struktur mit Latentwärmespeichermaterial |
CN2008800038764A CN101632172B (zh) | 2007-02-08 | 2008-02-04 | 半导体元件的冷却构造 |
US12/526,361 US8919424B2 (en) | 2007-02-08 | 2008-02-04 | Semiconductor element cooling structure |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2007028773A JP4694514B2 (ja) | 2007-02-08 | 2007-02-08 | 半導体素子の冷却構造 |
JP2007-028773 | 2007-02-08 |
Publications (1)
Publication Number | Publication Date |
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WO2008096839A1 true WO2008096839A1 (ja) | 2008-08-14 |
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Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
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PCT/JP2008/052094 WO2008096839A1 (ja) | 2007-02-08 | 2008-02-04 | 半導体素子の冷却構造 |
Country Status (5)
Country | Link |
---|---|
US (1) | US8919424B2 (ja) |
JP (1) | JP4694514B2 (ja) |
CN (1) | CN101632172B (ja) |
DE (1) | DE112008000371B8 (ja) |
WO (1) | WO2008096839A1 (ja) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
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JP2018046195A (ja) * | 2016-09-15 | 2018-03-22 | トヨタ自動車株式会社 | 半導体装置 |
Families Citing this family (17)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE102008004053A1 (de) * | 2008-01-11 | 2009-07-23 | Airbus Deutschland Gmbh | Spitzenlast-Kühlung von elektronischen Bauteilen durch phasenwechselnde Materialien |
JP5320354B2 (ja) * | 2010-07-28 | 2013-10-23 | 株式会社神戸製鋼所 | 放熱装置 |
CN103596407B (zh) * | 2012-08-13 | 2016-08-10 | 华硕电脑股份有限公司 | 热缓冲元件 |
US9210832B2 (en) * | 2012-08-13 | 2015-12-08 | Asustek Computer Inc. | Thermal buffering element |
US9117748B2 (en) | 2013-01-31 | 2015-08-25 | Infineon Technologies Ag | Semiconductor device including a phase change material |
US9793255B2 (en) | 2013-01-31 | 2017-10-17 | Infineon Technologies Ag | Power semiconductor device including a cooling material |
JP6179145B2 (ja) * | 2013-03-18 | 2017-08-16 | 富士通株式会社 | 電子機器システム |
FR3011067B1 (fr) * | 2013-09-23 | 2016-06-24 | Commissariat Energie Atomique | Appareil comportant un composant fonctionnel susceptible d'etre en surcharge thermique lors de son fonctionnement et un systeme de refroidissement du composant |
JP6217357B2 (ja) * | 2013-12-02 | 2017-10-25 | 株式会社デンソー | 機電一体型駆動装置 |
CN104780736B (zh) * | 2014-01-13 | 2018-05-25 | 潘晨曦 | 电机控制器 |
DE102014213545A1 (de) * | 2014-07-11 | 2015-04-23 | Siemens Aktiengesellschaft | Leistungshalbleitermodul |
CN107144163B (zh) * | 2017-04-18 | 2018-12-07 | 西安交通大学 | 一种带有冷却系统的熔融盐蓄热罐 |
DE102017122053A1 (de) | 2017-09-22 | 2019-03-28 | Infineon Technologies Ag | Magnetisches Phasenwechselmaterial zur Wärmeabfuhr |
JP6670868B2 (ja) * | 2018-02-16 | 2020-03-25 | 矢崎エナジーシステム株式会社 | 潜熱蓄熱体 |
JP7098574B2 (ja) * | 2019-05-28 | 2022-07-11 | 矢崎総業株式会社 | 放熱構造 |
JP2021086845A (ja) * | 2019-11-25 | 2021-06-03 | 矢崎総業株式会社 | 電子装置 |
FR3112241B1 (fr) * | 2020-07-02 | 2022-08-12 | Safran | Dispositif de refroidissement mis en œuvre dans une application d’électronique de puissance |
Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2005093848A (ja) * | 2003-09-19 | 2005-04-07 | Fuji Electric Holdings Co Ltd | 冷却装置 |
JP2005150419A (ja) * | 2003-11-17 | 2005-06-09 | Nippon Soken Inc | 半導体装置 |
JP2007019203A (ja) * | 2005-07-07 | 2007-01-25 | Toyota Industries Corp | 放熱装置 |
Family Cites Families (37)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4559580A (en) * | 1983-11-04 | 1985-12-17 | Sundstrand Corporation | Semiconductor package with internal heat exchanger |
JPS617378A (ja) | 1984-06-21 | 1986-01-14 | Matsushita Electric Ind Co Ltd | 蓄熱材 |
JP3069819B2 (ja) * | 1992-05-28 | 2000-07-24 | 富士通株式会社 | ヒートシンク並びに該ヒートシンクに用いるヒートシンク取付具及びヒートシンクを用いた可搬型電子装置 |
JPH0611286A (ja) | 1992-06-30 | 1994-01-21 | Toyota Motor Corp | 排熱利用型蓄熱器 |
US5455458A (en) * | 1993-08-09 | 1995-10-03 | Hughes Aircraft Company | Phase change cooling of semiconductor power modules |
DE4422113C2 (de) * | 1994-06-24 | 2003-07-31 | Wabco Gmbh & Co Ohg | Elektronikmodul |
US5864466A (en) * | 1994-07-19 | 1999-01-26 | Remsburg; Ralph | Thermosyphon-powered jet-impingement cooling device |
US5615735A (en) * | 1994-09-29 | 1997-04-01 | Hewlett-Packard Co. | Heat sink spring clamp |
JPH08148618A (ja) * | 1994-11-22 | 1996-06-07 | Hitachi Ltd | 放熱構造 |
JP3687169B2 (ja) | 1996-02-14 | 2005-08-24 | 松下電器産業株式会社 | 誘導加熱式炊飯器 |
US5920458A (en) * | 1997-05-28 | 1999-07-06 | Lucent Technologies Inc. | Enhanced cooling of a heat dissipating circuit element |
JPH11121666A (ja) * | 1997-10-20 | 1999-04-30 | Fujitsu Ltd | マルチチップモジュールの冷却装置 |
JP4121185B2 (ja) * | 1998-06-12 | 2008-07-23 | 新電元工業株式会社 | 電子回路装置 |
JP2000116505A (ja) | 1998-10-12 | 2000-04-25 | Matsushita Electric Ind Co Ltd | 電磁誘導加熱式調理器 |
JP3677403B2 (ja) * | 1998-12-07 | 2005-08-03 | パイオニア株式会社 | 発熱素子の放熱構造 |
TW411037U (en) * | 1999-06-11 | 2000-11-01 | Ind Tech Res Inst | Integrated circuit packaging structure with dual directions of thermal conduction path |
DE19950026B4 (de) * | 1999-10-09 | 2010-11-11 | Robert Bosch Gmbh | Leistungshalbleitermodul |
US6521982B1 (en) * | 2000-06-02 | 2003-02-18 | Amkor Technology, Inc. | Packaging high power integrated circuit devices |
JP4897133B2 (ja) * | 1999-12-09 | 2012-03-14 | ソニー株式会社 | 半導体発光素子、その製造方法および配設基板 |
JP3578335B2 (ja) | 2000-06-29 | 2004-10-20 | 株式会社デンソー | 電力用半導体装置 |
JP3853601B2 (ja) * | 2001-03-12 | 2006-12-06 | 株式会社東芝 | 半導体モジュールおよび冷却器 |
JP2002359329A (ja) * | 2001-05-30 | 2002-12-13 | Hitachi Ltd | 半導体装置 |
US6942018B2 (en) * | 2001-09-28 | 2005-09-13 | The Board Of Trustees Of The Leland Stanford Junior University | Electroosmotic microchannel cooling system |
JP2003142864A (ja) * | 2001-11-01 | 2003-05-16 | Hitachi Ltd | 電子装置 |
JP3958589B2 (ja) * | 2002-01-23 | 2007-08-15 | 株式会社オートネットワーク技術研究所 | 電気接続箱 |
JP3780230B2 (ja) * | 2002-07-03 | 2006-05-31 | 株式会社日立製作所 | 半導体モジュール及び電力変換装置 |
JP4155048B2 (ja) * | 2003-02-14 | 2008-09-24 | 住友電装株式会社 | パワーモジュール及びその製造方法 |
US20050077614A1 (en) * | 2003-10-10 | 2005-04-14 | Chengalva Suresh K. | Semiconductor device heat sink package and method |
DE10347518A1 (de) | 2003-10-13 | 2005-05-25 | Siemens Ag | Elektronisches Bauelement, Schaltungsträgeraufbau und Elektronikeinheit mit Wärmespeicher |
US20050111188A1 (en) * | 2003-11-26 | 2005-05-26 | Anandaroop Bhattacharya | Thermal management device for an integrated circuit |
EP1713169A1 (en) * | 2004-01-26 | 2006-10-18 | Hitachi, Ltd. | Semiconductor device |
JP2006093404A (ja) * | 2004-09-24 | 2006-04-06 | Sumitomo Wiring Syst Ltd | 電気接続箱 |
CN100403526C (zh) * | 2004-11-18 | 2008-07-16 | 丰田自动车株式会社 | 半导体器件的散热结构和半导体封装 |
JP2006240501A (ja) | 2005-03-03 | 2006-09-14 | Nissan Motor Co Ltd | ハイブリッド車用の冷却システム |
US7365981B2 (en) * | 2005-06-28 | 2008-04-29 | Delphi Technologies, Inc. | Fluid-cooled electronic system |
JP4979909B2 (ja) * | 2005-08-19 | 2012-07-18 | 株式会社日立製作所 | 電力変換装置 |
CN1851908A (zh) * | 2006-05-22 | 2006-10-25 | 中国科学院电工研究所 | 一种功率半导体器件蒸发冷却装置 |
-
2007
- 2007-02-08 JP JP2007028773A patent/JP4694514B2/ja not_active Expired - Fee Related
-
2008
- 2008-02-04 WO PCT/JP2008/052094 patent/WO2008096839A1/ja active Application Filing
- 2008-02-04 CN CN2008800038764A patent/CN101632172B/zh not_active Expired - Fee Related
- 2008-02-04 DE DE112008000371T patent/DE112008000371B8/de not_active Expired - Fee Related
- 2008-02-04 US US12/526,361 patent/US8919424B2/en active Active
Patent Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2005093848A (ja) * | 2003-09-19 | 2005-04-07 | Fuji Electric Holdings Co Ltd | 冷却装置 |
JP2005150419A (ja) * | 2003-11-17 | 2005-06-09 | Nippon Soken Inc | 半導体装置 |
JP2007019203A (ja) * | 2005-07-07 | 2007-01-25 | Toyota Industries Corp | 放熱装置 |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2018046195A (ja) * | 2016-09-15 | 2018-03-22 | トヨタ自動車株式会社 | 半導体装置 |
Also Published As
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DE112008000371B4 (de) | 2012-12-06 |
US20100319876A1 (en) | 2010-12-23 |
JP4694514B2 (ja) | 2011-06-08 |
DE112008000371T5 (de) | 2009-12-17 |
DE112008000371B8 (de) | 2013-02-28 |
CN101632172B (zh) | 2011-06-01 |
CN101632172A (zh) | 2010-01-20 |
US8919424B2 (en) | 2014-12-30 |
JP2008193017A (ja) | 2008-08-21 |
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