JP6272459B2 - 半導体モジュール - Google Patents
半導体モジュール Download PDFInfo
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- JP6272459B2 JP6272459B2 JP2016511296A JP2016511296A JP6272459B2 JP 6272459 B2 JP6272459 B2 JP 6272459B2 JP 2016511296 A JP2016511296 A JP 2016511296A JP 2016511296 A JP2016511296 A JP 2016511296A JP 6272459 B2 JP6272459 B2 JP 6272459B2
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- 239000004065 semiconductor Substances 0.000 title claims description 79
- 229910052751 metal Inorganic materials 0.000 claims description 22
- 239000002184 metal Substances 0.000 claims description 22
- 238000001816 cooling Methods 0.000 claims description 14
- 230000008646 thermal stress Effects 0.000 claims description 12
- 230000035882 stress Effects 0.000 claims description 11
- 239000000758 substrate Substances 0.000 claims description 9
- 229910001111 Fine metal Inorganic materials 0.000 claims description 8
- 230000017525 heat dissipation Effects 0.000 claims description 6
- 238000000034 method Methods 0.000 claims description 3
- 239000000853 adhesive Substances 0.000 claims description 2
- 230000001070 adhesive effect Effects 0.000 claims description 2
- 238000005219 brazing Methods 0.000 claims description 2
- 238000009792 diffusion process Methods 0.000 claims description 2
- 238000005245 sintering Methods 0.000 claims description 2
- 229910000679 solder Inorganic materials 0.000 claims description 2
- 238000009429 electrical wiring Methods 0.000 description 7
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 3
- 229910052802 copper Inorganic materials 0.000 description 3
- 239000010949 copper Substances 0.000 description 3
- 238000000926 separation method Methods 0.000 description 3
- 230000000694 effects Effects 0.000 description 2
- 150000002739 metals Chemical class 0.000 description 2
- 230000002265 prevention Effects 0.000 description 2
- 229910052782 aluminium Inorganic materials 0.000 description 1
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 239000000470 constituent Substances 0.000 description 1
- 238000005336 cracking Methods 0.000 description 1
- 230000002500 effect on skin Effects 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 239000011229 interlayer Substances 0.000 description 1
- 238000010030 laminating Methods 0.000 description 1
- 239000010410 layer Substances 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 230000005855 radiation Effects 0.000 description 1
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Description
この特許文献1に開示された従来のバスバは、導電率が高い金属製のプレート(例えば、銅プレート)が使用されている。一般的に、バスバは、電流容量に応じた銅材を用いることになるが、大出力用となると、断面積が増大し、剛性となる場合が多い。
図1は、本発明の実施の形態1における半導体モジュールの断面図である。本実施の形態1における半導体モジュール9は、基板1(あるいはバスバ)に配置されている半導体素子3、主端子を構成する導電部材2、放熱板7から構成されている。導電部材2は、半導体素子3の上側電極5−1と、スイッチング回路を構成する電子部品の端子8とに接合されている。
先の実施の形態1では、柔軟性を有し、かつ表面積を増大させる目的を達成するための導電部材2として、導電率が高い金属細線をより線にした構造を採用する場合について説明した。これに対して、本実施の形態2では、同様の目的を達成するために、実施の形態1とは異なる構造の導電性部材を採用する場合について説明する。
先の実施の形態1では、柔軟性を有し、かつ表面積を増大させる目的を達成するための導電部材2として、導電率が高い金属細線をより線にした構造を採用する場合について説明した。また、先の実施の形態2では、同様の目的を達成するための導電部材2として、編組線を採用する場合について説明した。これに対して、本実施の形態3では、同様の目的を達成するために、実施の形態1、2とは異なる構造の導電性部材を採用する場合について説明する。
本実施の形態4では、先の図1の構成に対して、残留応力の発生を抑制するとともに、放熱性を向上させることのできる構成をさらに備えている半導体モジュールについて説明する。図2は、本発明の実施の形態4における半導体モジュールの断面図である。先の実施の形態1における図1の構成と比較すると、図2の構成は、冷却面6(冷却面構造部に相当)を備えている点が異なっている。そこで、この異なる構成を中心に、以下に説明する。
本実施の形態5では、基板1上に半導体素子3が複数配置されている際に、同一の導電部材2を用いて接続する構成について説明する。図3は、本発明の実施の形態5における半導体モジュールの断面図である。先の実施の形態1における図1の構成と比較すると、図3の構成は、基板1上に2つの半導体素子3が搭載されており、それら2つの半導体素子3が、1本の導電部材2により、共通して接続されている点が異なっている。そこで、この異なる構成を中心に、以下に説明する。
Claims (5)
- 基板もしくはバスバに配置された半導体素子を他の電子部品と電気的に接続させるために用いられる導電部材が、半導体素子との接合部における、導電部材と半導体素子との線膨張係数差による冷熱ストレスを低減し、接続対象の寸法公差を吸収できる柔軟性を有する構造を備え、
前記基板もしくは前記バスバに配置されるとともに、前記半導体素子と絶縁されている冷却面構造部を有し、
前記導電部材は、細線の集合体または板金の集合体で構成されており、前記冷却面構造部を経由して前記半導体素子と他の電子部品とに電気的に接続されており、
前記冷却面構造部は、残留応力による前記導電部材の剥離を抑制したうえで、放熱性を向上させる構造を有する
半導体モジュール。 - 請求項1に記載の半導体モジュールにおいて、
前記導電部材は、金属線をより線にした構造を備える
半導体モジュール。 - 請求項1に記載の半導体モジュールにおいて、
前記導電部材は、金属細線を網目状に編み込んだ構造を備える
半導体モジュール。 - 請求項1に記載の半導体モジュールにおいて、
前記導電部材は、板金を積層した構造を備える
半導体モジュール。 - 請求項1から4のいずれか1項に記載の半導体モジュールにおいて、
前記導電部材は、前記半導体素子に対する接合方法として、超音波接合、はんだ接合、Agシンター接合、導電接着剤による接合、拡散接合、ろう付けによる接合のいずれかが用いられている
半導体モジュール。
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PCT/JP2014/060009 WO2015151285A1 (ja) | 2014-04-04 | 2014-04-04 | 半導体モジュール |
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JPWO2015151285A1 JPWO2015151285A1 (ja) | 2017-04-13 |
JP6272459B2 true JP6272459B2 (ja) | 2018-01-31 |
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US (1) | US9853009B2 (ja) |
EP (2) | EP3477690B1 (ja) |
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WO2021130290A1 (en) * | 2019-12-28 | 2021-07-01 | Danfoss Silicon Power Gmbh | Power module with improved electrical characteristics |
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EP0064856B1 (en) * | 1981-05-12 | 1986-12-30 | LUCAS INDUSTRIES public limited company | A multi-phase bridge arrangement |
JP3292614B2 (ja) | 1995-01-17 | 2002-06-17 | 東芝アイティー・コントロールシステム株式会社 | パワーモジュール素子 |
TW448524B (en) * | 1997-01-17 | 2001-08-01 | Seiko Epson Corp | Electronic component, semiconductor device, manufacturing method therefor, circuit board and electronic equipment |
JPH10340985A (ja) | 1997-06-05 | 1998-12-22 | Toshiba Corp | 半導体装置および半導体装置の製造方法 |
JP2001036001A (ja) * | 1999-07-21 | 2001-02-09 | Toyota Central Res & Dev Lab Inc | 電力半導体モジュール |
JP2004319740A (ja) * | 2003-04-16 | 2004-11-11 | Fuji Electric Holdings Co Ltd | パワー半導体装置およびその製造方法 |
JP4164409B2 (ja) * | 2003-06-13 | 2008-10-15 | 三菱電機株式会社 | 半導体パワーモジュール |
JP2005093306A (ja) | 2003-09-19 | 2005-04-07 | Hmy Ltd | 可撓性接続端子 |
DE102009020733B4 (de) * | 2009-05-11 | 2011-12-08 | Danfoss Silicon Power Gmbh | Verfahren zur Kontaktsinterung von bandförmigen Kontaktelementen |
JP2011204968A (ja) | 2010-03-26 | 2011-10-13 | Panasonic Corp | 半導体装置及び半導体装置の製造方法 |
JP2013026445A (ja) | 2011-07-21 | 2013-02-04 | Toyota Industries Corp | 下部金属と上部金属との接続構造 |
US8823175B2 (en) * | 2012-05-15 | 2014-09-02 | Infineon Technologies Ag | Reliable area joints for power semiconductors |
DE102012208251A1 (de) * | 2012-05-16 | 2013-11-21 | Robert Bosch Gmbh | Elektrische Kontaktierung für Halbleiter |
JP2013251500A (ja) | 2012-06-04 | 2013-12-12 | Renesas Electronics Corp | 半導体装置及びその製造方法 |
WO2015045648A1 (ja) * | 2013-09-30 | 2015-04-02 | 富士電機株式会社 | 半導体装置、半導体装置の組み立て方法、半導体装置用部品及び単位モジュール |
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US9853009B2 (en) | 2017-12-26 |
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US20170084568A1 (en) | 2017-03-23 |
CN106133896A (zh) | 2016-11-16 |
EP3128541A1 (en) | 2017-02-08 |
WO2015151285A1 (ja) | 2015-10-08 |
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EP3128541A4 (en) | 2018-03-14 |
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