JP2016100479A - 半導体装置及びパワーモジュール - Google Patents
半導体装置及びパワーモジュール Download PDFInfo
- Publication number
- JP2016100479A JP2016100479A JP2014236861A JP2014236861A JP2016100479A JP 2016100479 A JP2016100479 A JP 2016100479A JP 2014236861 A JP2014236861 A JP 2014236861A JP 2014236861 A JP2014236861 A JP 2014236861A JP 2016100479 A JP2016100479 A JP 2016100479A
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- Prior art keywords
- heat sink
- semiconductor device
- bus bar
- electrical connection
- heat
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Abstract
Description
先ず、図1に基づき、本実施形態の半導体装置(パワーモジュール)が適用される電力変換装置の一例について説明する。
本実施形態において、第1実施形態に示した半導体装置10及びパワーモジュール60と共通する部分についての説明は割愛する。
本実施形態において、第1実施形態に示した半導体装置10及びパワーモジュール60と共通する部分についての説明は割愛する。
本実施形態において、第1実施形態に示した半導体装置10及びパワーモジュール60と共通する部分についての説明は割愛する。
本実施形態において、第1実施形態に示した半導体装置10及びパワーモジュール60と共通する部分についての説明は割愛する。
Claims (8)
- 電気中継部材としてのバスバー(61,61a,61b,62)が電気的に接続され、冷却器(63,64)が両面側にそれぞれ配置されて冷却される両面冷却構造の半導体装置であって、
素子が形成され、該素子の第1主電極を第1主面(22)に有し、前記素子の第2主電極を前記第1主面と反対の第2主面(23)に有する半導体チップ(20,20a,20b,21,21a,21b)と、
前記半導体チップの厚み方向において前記第1主面側の一面(25)及び前記第2主面側の裏面(26)を有するとともに、前記一面及び前記裏面を繋ぐ側面(27)を有し、前記半導体チップを封止する封止樹脂体(24)と、
前記半導体チップの前記第1主面側に配置され、前記第1主電極と電気的に接続される第1ヒートシンク(31)と、
前記半導体チップの前記第2主面側に配置され、前記第2主電極と電気的に接続される第2ヒートシンク(39)と、を備え、
前記第1ヒートシンクは、前記封止樹脂体の前記一面、前記裏面、及び前記側面のうち、前記一面のみに露出されるとともに、前記半導体チップ側の面と反対の面が露出する露出面(32)とされ、
前記第2ヒートシンクは、前記封止樹脂体の前記一面、前記裏面、及び前記側面のうち、前記裏面のみに露出されるとともに、前記半導体チップ側の面と反対の面が前記裏面から露出する露出面(40)とされ、
前記第1ヒートシンク及び前記第2ヒートシンクのうち、前記バスバーと電気的に接続されるヒートシンクの露出面が、前記厚み方向からの投影視において、前記半導体チップと重なる領域であり、前記冷却器が熱的に接続される放熱領域(33,33a,33b,41,41b)と、該放熱領域の周辺領域であり、前記バスバーが電気的に接続される電気接続領域(34,34a,34b,42)と、を有することを特徴とする半導体装置。 - 前記第1ヒートシンクの電気接続領域と前記第2ヒートシンクの電気接続領域とが、前記厚み方向からの投影視において互いに重なる位置関係となっていることを特徴とする請求項1に記載の半導体装置。
- 前記電気接続領域に対応して前記第1ヒートシンクと前記第2ヒートシンクとの間に介在され、各ヒートシンクに接続されつつ前記第1ヒートシンク及び前記第2ヒートシンクを電気的に分離するスペーサ(46,47,48)をさらに備えることを特徴とする請求項1又は請求項2に記載の半導体装置。
- 前記放熱領域と前記電気接続領域とが、前記封止樹脂体によって分離されていることを特徴とする請求項1〜3いずれか1項に記載の半導体装置。
- 前記第1ヒートシンク及び前記第2ヒートシンクの少なくとも一方は、前記放熱領域と前記電気接続領域との間に形成された溝部(35,35a,35b,43)を有し、
前記溝部内にも前記封止樹脂体が配置されて、前記放熱領域と前記電気接続領域とが分離されていることを特徴とする請求項4に記載の半導体装置。 - 請求項2に記載の半導体装置(10)と、
各ヒートシンクにおける前記露出面の前記放熱領域に対してそれぞれ配置され、前記半導体装置を冷却する冷却器(63,64)と、
前記第1ヒートシンクにおける前記露出面の前記電気接続領域に接続される第1バスバー(61)と、
前記第2ヒートシンクにおける前記露出面の前記電気接続領域に接続される第2バスバー(62)と、を備え、
前記第1バスバーと前記第2バスバーとが、前記厚み方向に直交する同一の方向であって前記半導体装置よりも外側まで延設されるとともに、前記厚み方向からの投影視において互いに重なる位置関係とされていることを特徴とするパワーモジュール。 - 前記第1バスバー及び前記第2バスバーの少なくとも一方は、前記半導体装置よりも外側に折曲部(61c,62c)を有し、
前記第1バスバーと前記第2バスバーとの対向間隔が、前記半導体装置よりも外側において、前記半導体装置と重なる位置よりも狭くされていることを特徴とする請求項6に記載のパワーモジュール。 - 請求項1〜3いずれか1項に記載の半導体装置(10)と、
各ヒートシンクにおける前記露出面の前記放熱領域に対してそれぞれ配置され、前記半導体装置を冷却する冷却器(63,64)と、
前記第1ヒートシンクにおける前記露出面の前記電気接続領域に接続される第1バスバー(61)と、
前記第2ヒートシンクにおける前記露出面の前記電気接続領域に接続される第2バスバー(62)と、
前記露出面の前記放熱領域と前記冷却器との間にそれぞれ介在され、前記半導体装置の熱を前記冷却器に伝達するとともに、前記半導体装置と前記冷却器とを電気的に分離する絶縁板(65)と、を備え、
前記絶縁板が、前記放熱領域と前記冷却器との間よりも外側に延設されてなる延設部(65a)を有し、前記延設部により、前記放熱領域と前記電気接続領域とが分離されていることを特徴とするパワーモジュール。
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