JP6195019B2 - 電力用半導体装置及びその製造方法 - Google Patents
電力用半導体装置及びその製造方法 Download PDFInfo
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- JP6195019B2 JP6195019B2 JP2016518665A JP2016518665A JP6195019B2 JP 6195019 B2 JP6195019 B2 JP 6195019B2 JP 2016518665 A JP2016518665 A JP 2016518665A JP 2016518665 A JP2016518665 A JP 2016518665A JP 6195019 B2 JP6195019 B2 JP 6195019B2
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- power semiconductor
- metal plate
- semiconductor device
- sealing resin
- die pad
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Description
図1は、本発明の実施の形態1に係る電力用半導体装置を示す下面図である。図2は図1のI−IIに沿った断面図である。図3は、本発明の実施の形態1に係る電力用半導体装置の内部を示す上面図である。図4は、本発明の実施の形態1に係る電力用半導体装置の側面図である。この電力用半導体装置はDIPタイプのパッケージである。
図9は、本発明の実施の形態2に係る電力用半導体装置を示す下面図である。図10は図9のI−IIに沿った断面図である。図11は、本発明の実施の形態2に係る電力用半導体装置の製造方法を示す断面図である。
図12は、本発明の実施の形態3に係る電力用半導体装置を示す下面図である。図13は図12のI−IIに沿った断面図である。図14は、本発明の実施の形態3に係る電力用半導体装置の製造方法を示す断面図である。
図17は、本発明の実施の形態4に係る電力用半導体装置を示す下面図である。図18は、本発明の実施の形態4に係る電力用半導体装置の製造方法を示す断面図である。図18は図17の装置のI−IIに沿った断面に対応する。
図19は、本発明の実施の形態5に係る電力用半導体装置を示す下面図である。図20は図19のI−IIに沿った断面図である。本実施の形態では実施の形態1等の段差部14が金属板8の外周を囲むように設けられている。この下金型12aの段差部14が転写されることで、封止樹脂10の下面において段差部11が金属板8の外周を囲むように設けられる。樹脂注入ゲートを金属板8の短辺側に設けている。このように樹脂注入ゲートをパワーリード側以外の方向に設けた場合でも、段差部14を金属板8の外周を囲むように設けることにより絶縁膜9とダイパッド3の接着性を安定させ、かつ金属板の裏面の樹脂バリを抑制することができる。
Claims (11)
- インナーリードと、前記インナーリードに接続されたアウターリードと、前記インナーリードよりも下方に配置されたダイパッドと、前記インナーリードと前記ダイパッドをつなぐ曲げ部とを有するリードフレームを準備する工程と、
前記ダイパッド上に電力用半導体素子を固着する工程と、
前記ダイパッドの下面に絶縁膜を介して金属板を固着する工程と、
下金型と上金型の間のキャビティ内に前記インナーリード、前記ダイパッド、前記電力用半導体素子、前記絶縁膜、及び金属板を配置して封止樹脂により封止する工程とを備え、
前記下金型は、前記インナーリードの下方において前記キャビティの底面に設けられた段差部を有し、
前記段差部の上面の高さは前記キャビティ内に配置された前記電力用半導体素子の上面よりも高く、
前記キャビティ内に前記封止樹脂を注入する際に、前記金属板の下面は前記キャビティの底面に接し、前記封止樹脂を前記段差部の上方から前記電力用半導体素子の上面に向かって下方向に流すことを特徴とする電力用半導体装置の製造方法。 - 前記下金型は、前記段差部と前記金属板との間において前記キャビティの底面に設けられ、前記段差部よりも高さが低い突起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の製造方法。
- 前記下金型は、前記段差部と前記金属板との間において前記キャビティの底面に設けられ、前記段差部よりも高さが低い小段差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の製造方法。
- 前記金属板の長辺に沿って前記段差部が設けられ、
前記下金型は、前記金属板の短辺に沿って前記キャビティの底面に設けられた凸部を有することを特徴とする請求項1〜3の何れか1項に記載の電力用半導体装置の製造方法。 - 前記段差部は前記金属板の外周を囲むように設けられていることを特徴とする請求項1〜3の何れか1項に記載の電力用半導体装置の製造方法。
- インナーリードと、前記インナーリードに接続されたアウターリードと、前記インナーリードよりも下方に配置されたダイパッドと、前記インナーリードと前記ダイパッドをつなぐ曲げ部とを有するリードフレームと、
前記ダイパッド上に固着された電力用半導体素子と、
前記ダイパッドの下面に絶縁膜を介して固着された金属板と、
前記インナーリード、前記ダイパッド、前記電力用半導体素子、前記絶縁膜、及び金属板を封止する封止樹脂とを備え、
前記金属板の下面は前記封止樹脂の下面から露出され、
前記インナーリードの下方において前記封止樹脂の下面に段差部が設けられ、
前記段差部における前記封止樹脂の下面の高さは前記電力用半導体素子の上面の高さよりも高いことを特徴とする電力用半導体装置。 - 前記段差部と前記金属板との間において前記封止樹脂の下面に前記段差部よりも深さが浅い窪みが設けられていることを特徴とする請求項6に記載の電力用半導体装置。
- 前記窪みは2個以上設けられていることを特徴とする請求項7に記載の電力用半導体装置。
- 前記段差部と前記金属板との間において前記封止樹脂の下面に前記段差部よりも深さが浅い小段差部が設けられていることを特徴とする請求項6に記載の電力用半導体装置。
- 前記金属板の長辺に沿って前記段差部が設けられ、前記金属板の短辺に沿って前記封止樹脂の下面に凹部が設けられていることを特徴とする請求項6〜9の何れか1項に記載の電力用半導体装置。
- 前記段差部は前記金属板の外周を囲むように設けられていることを特徴とする請求項6〜9の何れか1項に記載の電力用半導体装置。
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JP5876669B2 (ja) * | 2010-08-09 | 2016-03-02 | ルネサスエレクトロニクス株式会社 | 半導体装置 |
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JP5484372B2 (ja) * | 2011-02-14 | 2014-05-07 | 三菱電機株式会社 | 半導体モジュール |
JP5720514B2 (ja) * | 2011-09-27 | 2015-05-20 | 三菱電機株式会社 | 半導体装置の製造方法 |
JP5680011B2 (ja) * | 2012-03-26 | 2015-03-04 | 三菱電機株式会社 | 電力用半導体装置および電力用半導体装置の製造方法 |
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US20160343644A1 (en) | 2016-11-24 |
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