JP2019169666A - パワー半導体装置 - Google Patents
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Abstract
Description
以下、図1〜図8を参照して、パワー半導体装置の実施の形態を説明する。
図5は、サブモジュール90の等価回路である。ただし図5では簡単のために一アーム分のみを示している。図5(a)は図1〜図4に示したような理想的なセンスの接続を示す図であり、図5(b)は好ましくないセンスの接続を示す図である。図5(b)に対応する構成は、たとえば突出部11を細いワイヤに代替する構成や、突出部11をソース導体10の中央付近に設ける構成に相当する。図5に示すLは電流の流路に存在するインダクタンスである。すなわち図5(a)ではセンス信号に関するインダクタンスは無視できるほど小さく、図5(b)ではセンス信号に関するインダクタンスが無視できない大きさである。
V=L di/dt・・・(1)
図6は、サブモジュール90からソース導体10を除いた平面図である。図6には大きく、ドレイン導体20と、絶縁層21と、ゲート配線22と、センス配線23とが示されている。ドレイン導体20とセンス配線23との間、およびセンス配線23とゲート配線22の間には、絶縁層21が設けられる。図6の中心には略正方形の半導体素子30が4つ、所定の間隔を空けて配置されている。半導体素子30は発熱量が多く、密集して配置すると十分な排熱ができないからである。
(1)パワー半導体装置100は、4つのサブモジュール90と、ソース外側導体110とを備える。サブモジュール90は、ソース導体10とドレイン導体20に挟まれる半導体素子30と、半導体素子30のセンス信号を伝達するセンス配線23と、センス配線23とソース導体10を配置する絶縁層21と、を備える。ソース外側導体110は、複数のサブモジュール90のそれぞれのソース導体10を覆って形成されかつ当該それぞれのソース導体10と接合される。それぞれのソース導体10は、ソース導体10からセンス配線23に向かって形成されかつ当該センス配線23と接続されるとともにセンス配線23とソース外側導体110の間の距離を規定する突出部11を有する。そのため、突出部11によりセンス信号に関するインダクタンスを小さくでき、かつ突出部11が高さ方向を規定することによりサブモジュール90の高さを均一化し、ソース導体10とソース外側導体110との密着性を向上できる。すなわちパワー半導体装置100の組み立て性を向上できる。
上述した実施の形態では、サブモジュール90は4つの半導体素子30を備えた。しかしサブモジュール90に備えられる半導体素子30の数は4に限定されず、1以上であればよい。
上述した実施の形態では、それぞれのサブモジュール90に備えられる突出部11の数は半導体素子30の数と同一であった。しかしそれぞれのサブモジュール90に備えられる突出部11の数は、半導体素子30の数よりも多くてもよいし、少なくてもよい。それぞれのサブモジュール90には突出部11が少なくとも2つ備えられればよい。
上述した実施の形態では、プレス加工や切削加工によりソース導体10が突出部11と一体に形成されるとした。しかし突出部11はソース導体とは別部材により構成され、金属接合部により接続されてもよい。
(5)突出部11は、突出部11を除くソース導体10Bとは別部材により構成されかつソース導体10Bと金属接合部10Cにより接続される。そのため突出部11の素材をソース導体10Aの他の箇所と異ならせることができ、設計の自由度を向上できる。
10C…金属接合部
11…突出部
20…ドレイン導体
21…絶縁層
22…ゲート配線
23…センス配線
30…半導体素子
31…ソース端子
32…ゲート端子
90、90A、90B…サブモジュール
100…パワー半導体装置
110…ソース外側導体
120…ドレイン外側導体
L…インダクタンス
S1…第1領域
S2…第2領域
Claims (5)
- ソース導体とドレイン導体に挟まれる半導体素子と、当該半導体素子のセンス信号を伝達するセンス配線と、当該センス配線と前記ソース導体を配置する絶縁部と、を備える複数のサブモジュールと、
前記複数のサブモジュールのそれぞれにおいて、前記ソース導体を覆って形成されかつ当該ソース導体と接合されるソース外側導体と、を備え、
前記複数のサブモジュールに含まれるそれぞれの前記ソース導体は、当該ソース導体から前記センス配線に向かって形成されかつ前記センス配線と接続されるとともに前記センス配線と前記ソース外側導体との距離を規定する突出部を有するパワー半導体装置。 - 請求項1に記載のパワー半導体装置において、
前記突出部は、前記ソース導体とは別部材により構成されかつ当該ソース導体と金属接合部により接続されるパワー半導体装置。 - 請求項1または2に記載のパワー半導体装置において、
前記複数のサブモジュールのそれぞれは、前記半導体素子を含む複数の半導体素子を有し、
前記ソース導体と前記ドレイン導体の配列方向から見た場合に、
前記突出部は、前記複数の半導体素子が配置される第1領域および当該複数の半導体素子の間の第2領域と重ならない位置に設けられるパワー半導体装置。 - 請求項1または2に記載のパワー半導体装置において、
前記複数のサブモジュールのそれぞれは、前記半導体素子を含む複数の半導体素子を有し、
前記突出部は、前記複数の半導体素子の数と同じまたは当該複数の半導体素子の数より多く設けられるパワー半導体装置。 - 請求項4に記載のパワー半導体装置において、
前記ソース導体と前記ドレイン導体の配列方向から見た場合に、
前記センス配線は、前記複数の半導体素子の間に設けられるように形成されるパワー半導体装置。
Priority Applications (5)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2018058160A JP6999462B2 (ja) | 2018-03-26 | 2018-03-26 | パワー半導体装置 |
US16/982,406 US11233011B2 (en) | 2018-03-26 | 2019-02-07 | Power semiconductor device |
CN201980019947.8A CN111886694B (zh) | 2018-03-26 | 2019-02-07 | 功率半导体装置 |
PCT/JP2019/004342 WO2019187679A1 (ja) | 2018-03-26 | 2019-02-07 | パワー半導体装置 |
DE112019000469.7T DE112019000469T5 (de) | 2018-03-26 | 2019-02-07 | Leistungshalbleitervorrichtung |
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JP2018058160A JP6999462B2 (ja) | 2018-03-26 | 2018-03-26 | パワー半導体装置 |
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JP2019169666A true JP2019169666A (ja) | 2019-10-03 |
JP6999462B2 JP6999462B2 (ja) | 2022-01-18 |
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US (1) | US11233011B2 (ja) |
JP (1) | JP6999462B2 (ja) |
CN (1) | CN111886694B (ja) |
DE (1) | DE112019000469T5 (ja) |
WO (1) | WO2019187679A1 (ja) |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2021093484A (ja) * | 2019-12-12 | 2021-06-17 | 日立金属株式会社 | 半導体モジュール |
JP2021093489A (ja) * | 2019-12-12 | 2021-06-17 | 日立金属株式会社 | パワーモジュール |
WO2021131943A1 (ja) * | 2019-12-25 | 2021-07-01 | 株式会社日立製作所 | パワー半導体モジュール、および電力変換装置 |
Families Citing this family (2)
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JP7337034B2 (ja) | 2020-09-15 | 2023-09-01 | 三菱電機株式会社 | 半導体パッケージおよび半導体装置 |
CN118633158A (zh) * | 2022-02-18 | 2024-09-10 | 株式会社村田制作所 | 电源模块 |
Citations (2)
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JP2013021107A (ja) * | 2011-07-11 | 2013-01-31 | Hitachi Ltd | 半導体パワーモジュール |
JP2014067897A (ja) * | 2012-09-26 | 2014-04-17 | Hitachi Automotive Systems Ltd | パワー半導体モジュール |
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US7579697B2 (en) * | 2002-07-15 | 2009-08-25 | International Rectifier Corporation | Arrangement for high frequency application |
US7397137B2 (en) * | 2002-07-15 | 2008-07-08 | International Rectifier Corporation | Direct FET device for high frequency application |
JP2006073655A (ja) * | 2004-08-31 | 2006-03-16 | Toshiba Corp | 半導体モジュール |
US7999369B2 (en) * | 2006-08-29 | 2011-08-16 | Denso Corporation | Power electronic package having two substrates with multiple semiconductor chips and electronic components |
CN102460693A (zh) * | 2009-06-19 | 2012-05-16 | 株式会社安川电机 | 电力变换装置 |
CN102460694A (zh) * | 2009-06-19 | 2012-05-16 | 株式会社安川电机 | 电力变换装置 |
JP5427745B2 (ja) * | 2010-09-30 | 2014-02-26 | 日立オートモティブシステムズ株式会社 | パワー半導体モジュール及びその製造方法 |
US8847384B2 (en) * | 2012-10-15 | 2014-09-30 | Toyota Motor Engineering & Manufacturing North America, Inc. | Power modules and power module arrays having a modular design |
JP6338937B2 (ja) * | 2014-06-13 | 2018-06-06 | ローム株式会社 | パワーモジュールおよびその製造方法 |
EP3410477A4 (en) * | 2016-01-31 | 2019-09-11 | Shindengen Electric Manufacturing Co., Ltd. | SEMICONDUCTOR MODULE |
US10319704B2 (en) * | 2016-01-31 | 2019-06-11 | Shindengen Electric Manufacturing Co., Ltd. | Semiconductor module |
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JP2021093484A (ja) * | 2019-12-12 | 2021-06-17 | 日立金属株式会社 | 半導体モジュール |
JP2021093489A (ja) * | 2019-12-12 | 2021-06-17 | 日立金属株式会社 | パワーモジュール |
JP7367506B2 (ja) | 2019-12-12 | 2023-10-24 | 株式会社プロテリアル | 半導体モジュール |
JP7367507B2 (ja) | 2019-12-12 | 2023-10-24 | 株式会社プロテリアル | パワーモジュール |
WO2021131943A1 (ja) * | 2019-12-25 | 2021-07-01 | 株式会社日立製作所 | パワー半導体モジュール、および電力変換装置 |
JP2021103754A (ja) * | 2019-12-25 | 2021-07-15 | 株式会社日立製作所 | パワー半導体モジュール、および電力変換装置 |
JP7308139B2 (ja) | 2019-12-25 | 2023-07-13 | 株式会社日立製作所 | パワー半導体モジュール、および電力変換装置 |
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WO2019187679A1 (ja) | 2019-10-03 |
CN111886694B (zh) | 2024-09-27 |
US11233011B2 (en) | 2022-01-25 |
US20210074647A1 (en) | 2021-03-11 |
CN111886694A (zh) | 2020-11-03 |
DE112019000469T5 (de) | 2020-10-01 |
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