JP2010186931A - 電力用半導体装置 - Google Patents
電力用半導体装置 Download PDFInfo
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Abstract
【解決手段】裏面に放熱板18を有する基板23と、該基板の裏面と反対の面である該基板の表面に固着された半導体素子26と、該基板と該半導体素子とを該基板の裏面である放熱板が露出するように覆う樹脂筐体10と、該樹脂筐体に一部が覆われ、かつ、ヒートシンクとねじ止めされる貫通穴17を有する他の部分で該樹脂筐体外部へ伸びる固定板16とを備える。そして、該貫通穴は該基板の裏面よりも該基板の表面側に位置する。
【選択図】図3
Description
本実施形態は図1〜6を参照して説明する。なお、同一材料または同一、対応する構成要素には同一の符号を付して複数回の説明を省略する場合がある。他の実施形態についても同様である。
本実施形態は、固定板の樹脂筐体に覆われた部分がメタルベース基板表面と接着された電力用半導体装置に関する。本実施形態も固定板の弾性変形により放熱板とヒートシンクを密着させる点は実施形態1と同様であるため説明を省略する。本実施形態は図7〜11を参照して説明する。図7に示すとおり、本実施形態の電力用半導体装置はメタルベース基板23上に接着剤60を介して固定板16が固定される。
本実施形態は、固定板が基板の裏面よりも下方に凸部を備える電力用半導体装置に関する。本実施形態も固定板の弾性変形により放熱板とヒートシンクを密着させる点は実施形態1と同様であるため説明を省略する。本実施形態は図12〜14を参照して説明する。
Claims (7)
- 裏面に放熱板を有する基板と、
前記基板の裏面と反対の面である前記基板の表面に固着された半導体素子と、
前記基板と前記半導体素子とを前記基板の裏面である放熱板が露出するように覆う樹脂筐体と、
前記樹脂筐体に一部が覆われ、かつ、ヒートシンクとねじ止めされる貫通穴を有する他の部分で前記樹脂筐体外部へ伸びる固定板とを備え、
前記貫通穴は前記基板の裏面よりも前記基板の表面側に位置することを特徴とする電力用半導体装置。 - 一部で前記半導体素子と電気的に接続され、他の部分で前記樹脂筐体のうち前記基板の裏面が露出する面と反対の面である表面から露出する電極を備え、
前記固定板は第1の固定板と第2の固定板を有し、
前記第1の固定板は前記樹脂筐体の一側面から外部に伸び、前記第2の固定板は前記樹脂筐体の一側面と反対の側面から外部に伸びたことを特徴とする請求項1に記載の電力用半導体装置。 - 前記固定板の前記樹脂筐体に覆われる一部が前記放熱板の直上に及ぶように配置されたことを特徴とする請求項1に記載の電力用半導体装置。
- 前記固定板の前記樹脂筐体に覆われる一部は前記基板の表面に、接着剤で固着されたことを特徴とする請求項1に記載の電力用半導体装置。
- 前記固定板は前記樹脂筐体に覆われる一部において貫通穴または切り欠きまたは溝が形成されたことを特徴とする請求項4に記載の電力用半導体装置。
- 前記固定板は一端が前記樹脂筐体の一側面から外部に伸び、他端が前記樹脂筐体の一側面と反対の側面から外部に伸び、前記固定板の前記樹脂筐体に覆われる部分は前記基板の表面の一端から他端にかけて接着剤で固着されたことを特徴とする請求項1に記載の電力用半導体装置。
- 前記固定板の前記樹脂筐体外部に伸びる部分であって、前記貫通穴が設けられている部分よりも前記樹脂筐体に離間した部分は前記基板の裏面よりも下方に凸となる凸部を有することを特徴とする請求項1に記載の電力用半導体装置。
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JP2012256746A (ja) * | 2011-06-09 | 2012-12-27 | Mitsubishi Electric Corp | 半導体装置 |
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JP2014123618A (ja) * | 2012-12-20 | 2014-07-03 | Mitsubishi Electric Corp | 半導体モジュール、その製造方法およびその接続方法 |
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