JPWO2018087890A1 - 半導体装置、インバータユニット及び自動車 - Google Patents
半導体装置、インバータユニット及び自動車 Download PDFInfo
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- JPWO2018087890A1 JPWO2018087890A1 JP2018549721A JP2018549721A JPWO2018087890A1 JP WO2018087890 A1 JPWO2018087890 A1 JP WO2018087890A1 JP 2018549721 A JP2018549721 A JP 2018549721A JP 2018549721 A JP2018549721 A JP 2018549721A JP WO2018087890 A1 JPWO2018087890 A1 JP WO2018087890A1
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- H01L23/18—Fillings characterised by the material, its physical or chemical properties, or its arrangement within the complete device
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- H02M7/00—Conversion of ac power input into dc power output; Conversion of dc power input into ac power output
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Abstract
Description
図1は、本発明の実施の形態1に係る半導体装置を示す平面図である。図2は図1の領域Aを拡大した斜視図である。図3は図1のI−IIに沿った断面図である。図4は図1のIII−IVに沿った断面図である。図5は図1の半導体装置の半導体チップの配列を示す平面図である。
図6は、本発明の実施の形態2に係るリードフレームとケースを分解した状態を示す平面図である。リードフレーム4,5,6はケース10に嵌合されている。ケース10にリードフレーム4,5,6をそれぞれ嵌合するためのスリット14a,14b,14cが設けられている。リードフレーム4,5,6の垂直部4b,5b,6bをそれぞれスリット14a,14b,14cに挿入することで、位置決めすることができる。
図7及び図8は、本発明の実施の形態3に係る半導体装置を示す断面図である。図7は図1のI−IIに沿った断面に対応し、図8は図1のIII−IVに沿った断面図に対応する。リードフレーム4,5,6の垂直部4b,5b,6bがU字状に曲げられている。これにより、通電電流に応じてリードフレーム4,5,6の幅を広げる場合でも、パッケージ縦寸法、つまり半導体装置の高さを抑えることができる。
Claims (15)
- 導体基板と、
前記導体基板の上面に接合された半導体チップと、
前記半導体チップよりも外側に配置され、前記半導体チップの制御電極に導線で接続された制御端子と、
前記半導体チップを取り囲むケースと、
リードフレームと、
前記半導体チップを封止する封止材とを備え、
前記リードフレームは、
前記半導体チップに接合された接合部と、
前記ケースに組み込まれ、前記接合部から前記制御端子の外側まで取り出され、前記半導体チップの上面に対して垂直方向に立ち上がっている垂直部とを有することを特徴とする半導体装置。 - 前記リードフレームは、前記接合部と前記垂直部を接続し前記半導体チップへの応力を緩和する応力緩和部を更に有することを特徴とする請求項1に記載の半導体装置。
- 前記半導体チップは、上アームを構成する第1の半導体チップと、下アームを構成する第2の半導体チップとを有し、
前記リードフレームは、前記第1の半導体チップに電気的に接続された第1のリードフレームと、前記第2の半導体チップに電気的に接続された第2のリードフレームとを有し、
前記第1のリードフレームの前記垂直部と前記第2のリードフレームの前記垂直部は絶縁層を介して向かい合っていることを特徴とする請求項1又は2に記載の半導体装置。 - 前記リードフレームは前記ケースと一体化されていることを特徴とする請求項1〜3の何れか1項に記載の半導体装置。
- 前記リードフレームは前記ケースに嵌合されていることを特徴とする請求項1〜3の何れか1項に記載の半導体装置。
- 前記リードフレームの前記垂直部がU字状に曲げられていることを特徴とする請求項1〜3の何れか1項に記載の半導体装置。
- 前記半導体チップは、1つのスイッチング相に対して並列に接続された複数の半導体チップを有し、
前記リードフレームは、前記複数の半導体チップから1つのAC出力を取り出すことを特徴とする請求項1〜6の何れか1項に記載の半導体装置。 - 前記導体基板の下面に設けられた絶縁基板を更に備えることを特徴とする請求項1〜7の何れか1項に記載の半導体装置。
- 前記絶縁基板の下面に設けられた冷却板を更に備えることを特徴とする請求項8に記載の半導体装置。
- 前記冷却板の下面に設けられた冷却用の複数の突起を更に備えることを特徴とする請求項9に記載の半導体装置。
- 前記冷却板は放熱グリスを介して冷却フィンに熱的に接合されることを特徴とする請求項9に記載の半導体装置。
- 前記リードフレームは前記封止材で被覆されていることを特徴とする請求項1〜11の何れか1項に記載の半導体装置。
- 前記半導体チップはワイドバンドギャップ半導体によって形成されていることを特徴とする請求項1〜12の何れか1項に記載の半導体装置。
- 請求項1〜13の何れか1項に記載の半導体装置を有し、自動車動力用モータを駆動する電源として自動車筐体に配置されることを特徴とするインバータユニット。
- 請求項14に記載のインバータユニットを有することを特徴とする自動車。
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