JP2005311213A - 半導体装置およびその製造方法 - Google Patents
半導体装置およびその製造方法 Download PDFInfo
- Publication number
- JP2005311213A JP2005311213A JP2004129251A JP2004129251A JP2005311213A JP 2005311213 A JP2005311213 A JP 2005311213A JP 2004129251 A JP2004129251 A JP 2004129251A JP 2004129251 A JP2004129251 A JP 2004129251A JP 2005311213 A JP2005311213 A JP 2005311213A
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- Prior art keywords
- metal wire
- electrode
- semiconductor device
- wire
- chip
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- 229910000679 solder Inorganic materials 0.000 description 3
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Abstract
【解決手段】 本発明の半導体装置は、絶縁基板と、絶縁基板上に実装されたチップ電極を含む半導体チップと、第1の金属ワイヤを介して、チップ電極と電気的に接続された第1の電極と、第2の金属ワイヤを介して、チップ電極と電気的に接続された第2の電極と、を備える。第2の金属ワイヤは、第1の金属ワイヤよりも断線しやすい。
【選択図】図2
Description
図1ないし図5を参照しながら、本発明に係るパワーモジュール(電力用半導体装置)の実施の形態1について以下に説明する。図1に示すパワーモジュール1は、概略、良好な熱伝導性を有する銅などの金属板からなる金属ベース板5と、金属ベース板5上に固定された樹脂などの絶縁材料からなるケース6と、金属ベース板5上に半田などの導電性接着剤7を介して固着された両主面に金属パターン(図示せず)を有する絶縁基板8と、を備える。また、パワーモジュール1は、ケース6の上面から内部に延びる一対の主電極10,11と、絶縁基板8の上に半田などの導電性接着剤9を介して固着された絶縁ゲート型バイポーラトランジスタ(IGBT)などの半導体チップ20と、を有する。また、半導体チップ20は、チップ電極22を有する(図2参照)。
図6を参照しながら、本発明に係るパワーモジュールの実施の形態2について以下に説明する。実施の形態2のパワーモジュール2は、実施の形態1では外部に設けられた制御回路部を内蔵した点を除き、実施の形態1のパワーモジュール1と同様の構成を有するので、重複する部分に関する詳細な説明を省略する。
変形例1のパワーモジュール1は、図8に示すように、通常の金属ワイヤ12よりも小さい径を有する(より細い)ダミー金属ワイヤ32を用いる点を除いて、実施の形態1のパワーモジュール1と同様の構成を有するので、重複する部分に関する詳細な説明を省略する。
変形例2のパワーモジュール1は、図9に示すように、通常の金属ワイヤ12よりも長いダミー金属ワイヤ32を用いる点を除いて、実施の形態1のパワーモジュール1と同様の構成を有するので、重複する部分に関する詳細な説明を省略する。
変形例3のパワーモジュール1は、通常の金属ワイヤ12とダミー金属ワイヤ32が互いに異なる材料組成を用いて形成される点を除いて、実施の形態1のパワーモジュール1と同様の構成を有するので、重複する部分に関する詳細な説明を省略する。
変形例4のパワーモジュール1は、図10のハッチングで示すように、ダミー金属ワイヤ32が接合されるダミー電極30またはチップ電極22の一部の領域の上に、接合強度を低減するような皮膜34a,34bを形成する点を除いて、実施の形態1のパワーモジュール1と同様の構成を有するので、重複する部分に関する詳細な説明を省略する。
Claims (10)
- 半導体装置であって、
絶縁基板と、
前記絶縁基板上に実装されたチップ電極を含む半導体チップと、
主電流を流す第1の金属ワイヤを介して、前記チップ電極と電気的に接続された第1の電極と、
前記第1の金属ワイヤより断線しやすい第2の金属ワイヤを介して、前記チップ電極と電気的に接続された第2の電極と、を備え、
前記第2の金属ワイヤの断線を示す電気信号を前記第2の電極が出力することを特徴とする半導体装置。 - 請求項1に記載の半導体装置であって、
前記第2の電極に電気的に接続されたセンス抵抗と、
前記センス抵抗の両端の電位差をモニタすることにより、前記金属ワイヤの断線を検出する制御回路と、を備えたことを特徴とする半導体装置。 - 請求項1に記載の半導体装置であって、
前記チップ電極は、前記主電流を流すチップ主電極と、センス電流を流すセンス電流電極と、を含み、
前記第2の金属ワイヤは、前記センス電流電極に電気的に接続されることを特徴とする半導体装置。 - 請求項1に記載の半導体装置であって、
前記第2の金属ワイヤと前記チップ電極との間の接合界面における接合強度が、前記第1の金属ワイヤと前記チップ電極との間の接合界面における接合強度よりも小さいことを特徴とする半導体装置。 - 請求項1に記載の半導体装置であって、
前記第2の金属ワイヤが前記第1の金属ワイヤよりも細いことを特徴とする半導体装置。 - 請求項1に記載の半導体装置であって、
前記第2の金属ワイヤが前記第1の金属ワイヤよりも長いことを特徴とする半導体装置。 - 請求項1に記載の半導体装置であって、
前記第1の金属ワイヤおよび前記第2の金属ワイヤは、それぞれ異なる材料からなることを特徴とする半導体装置。 - 請求項1に記載の半導体装置であって、
前記第2の金属ワイヤと前記第2の電極との間の接合界面、および前記第2の金属ワイヤと前記チップ電極との間の接合界面の少なくとも一方に、接合強度を低減するための皮膜が形成されることを特徴とする半導体装置。 - 半導体装置の製造方法であって、
絶縁基板上にチップ電極を含む半導体チップを実装するステップと、
第1の金属ワイヤを、第1のワイヤボンディング荷重で、チップ電極および第1の電極にワイヤボンディングするステップと、
第2の金属ワイヤを、第2のワイヤボンディング荷重で、前記チップ電極および第2の電極にワイヤボンディングするステップと、を有し、
前記第2のワイヤボンディング荷重が前記第1のワイヤボンディング荷重よりも小さいことを特徴とする製造方法。 - 半導体装置の製造方法であって、
絶縁基板上にチップ電極を含む半導体チップを実装するステップと、
第1の金属ワイヤを、第1の温度まで加熱して、チップ電極および第1の電極にワイヤボンディングするステップと、
第2の金属ワイヤを、第2の温度まで加熱して、前記チップ電極および第2の電極にワイヤボンディングするステップと、を有し、
前記第2の温度が前記第1の温度より低いことを特徴とする製造方法。
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JP2008186824A (ja) * | 2007-01-26 | 2008-08-14 | Mitsubishi Electric Corp | 半導体装置およびそれを備えたインバータシステム |
JP2009141053A (ja) * | 2007-12-05 | 2009-06-25 | Denso Corp | リードフレームおよび半導体装置の製造方法 |
JP2014199941A (ja) * | 2014-06-19 | 2014-10-23 | 株式会社東芝 | 電子装置、故障判定方法、寿命推定方法、プログラム |
US9310414B2 (en) | 2012-03-27 | 2016-04-12 | Kabushiki Kaisha Toshiba | Electronic apparatus, a method for deciding a failure, and a method for estimating a fatigue life |
US9647443B2 (en) | 2013-10-29 | 2017-05-09 | Mitsubishi Electric Corporation | Semiconductor device |
JP2017168555A (ja) * | 2016-03-15 | 2017-09-21 | 富士電機株式会社 | 半導体装置 |
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JP2020532118A (ja) * | 2017-11-28 | 2020-11-05 | ミツビシ・エレクトリック・アールアンドディー・センター・ヨーロッパ・ビーヴィMitsubishi Electric R&D Centre Europe B.V. | パワーモジュールのダイの第1の相互接続体の修復を可能にするシステム及び方法 |
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US11296073B2 (en) | 2018-02-27 | 2022-04-05 | Mitsubishi Electric Corporation | Semiconductor device |
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JP4409348B2 (ja) * | 2004-04-26 | 2010-02-03 | 三菱電機株式会社 | 半導体装置およびその製造方法 |
JP4592634B2 (ja) * | 2005-06-17 | 2010-12-01 | パナソニック株式会社 | 半導体装置 |
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JP3292614B2 (ja) | 1995-01-17 | 2002-06-17 | 東芝アイティー・コントロールシステム株式会社 | パワーモジュール素子 |
JPH098075A (ja) * | 1995-06-23 | 1997-01-10 | Toshiba Corp | 半導体装置 |
JP4409348B2 (ja) * | 2004-04-26 | 2010-02-03 | 三菱電機株式会社 | 半導体装置およびその製造方法 |
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JP2008186824A (ja) * | 2007-01-26 | 2008-08-14 | Mitsubishi Electric Corp | 半導体装置およびそれを備えたインバータシステム |
JP2009141053A (ja) * | 2007-12-05 | 2009-06-25 | Denso Corp | リードフレームおよび半導体装置の製造方法 |
US9310414B2 (en) | 2012-03-27 | 2016-04-12 | Kabushiki Kaisha Toshiba | Electronic apparatus, a method for deciding a failure, and a method for estimating a fatigue life |
US9647443B2 (en) | 2013-10-29 | 2017-05-09 | Mitsubishi Electric Corporation | Semiconductor device |
JP2014199941A (ja) * | 2014-06-19 | 2014-10-23 | 株式会社東芝 | 電子装置、故障判定方法、寿命推定方法、プログラム |
JP2017168555A (ja) * | 2016-03-15 | 2017-09-21 | 富士電機株式会社 | 半導体装置 |
JP2020532118A (ja) * | 2017-11-28 | 2020-11-05 | ミツビシ・エレクトリック・アールアンドディー・センター・ヨーロッパ・ビーヴィMitsubishi Electric R&D Centre Europe B.V. | パワーモジュールのダイの第1の相互接続体の修復を可能にするシステム及び方法 |
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JP2021077812A (ja) * | 2019-11-12 | 2021-05-20 | 株式会社デンソー | 半導体装置 |
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JP7052826B2 (ja) | 2020-06-16 | 2022-04-12 | 富士電機株式会社 | 半導体装置 |
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