JP3988735B2 - 半導体装置及びその製造方法 - Google Patents
半導体装置及びその製造方法 Download PDFInfo
- Publication number
- JP3988735B2 JP3988735B2 JP2004073305A JP2004073305A JP3988735B2 JP 3988735 B2 JP3988735 B2 JP 3988735B2 JP 2004073305 A JP2004073305 A JP 2004073305A JP 2004073305 A JP2004073305 A JP 2004073305A JP 3988735 B2 JP3988735 B2 JP 3988735B2
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- Prior art keywords
- semiconductor device
- bonding material
- circuit board
- plate
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- Condensed Matter Physics & Semiconductors (AREA)
- General Physics & Mathematics (AREA)
- Computer Hardware Design (AREA)
- Chemical & Material Sciences (AREA)
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- Dispersion Chemistry (AREA)
- Cooling Or The Like Of Semiconductors Or Solid State Devices (AREA)
Description
Claims (10)
- 熱伝導性のベース板と、該ベース板に接合材で接合された絶縁回路基板と、該絶縁回路基板上に搭載された電子部品と、を含む半導体装置であって、
前記絶縁回路基板が、窒化珪素からなる絶縁板と該絶縁板の表裏に接合されたそれぞれが前記絶縁板の厚さより厚い銅板とを有しており、
前記銅板の厚さの和が0.9mmから2.2mmの範囲にあって、かつ、前記接合材の最小厚さが50μm以上に保たれ、該接合材中に発生する気体の導通路を形成する構造物が設けられてい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において、前記ベース板に接着された外囲ケースを有し、前記ベース板と前記外囲ケースとにより内部に前記電子部品の収容部が形成されていることを特徴とする半導体装置。
- 前記構造物が、前記接合材の融点よりも高い融点を有する金属粒又は前記ベース板又は前記銅板の少なくとも一方に形成された突起により構成され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。
- 前記金属粒又は前記突起を含む構造物は、その径又は高さが異なる第1構造物群と第2の構造物群とを有することを特徴とする請求項3に記載の半導体装置。
- 前記金属粒の最大径又は前記突起の最大高さは、50μmから200μmの範囲にあり、該構造物の添加量は、前記接合材中の導電性成分の体積に対して0.005vol%〜5vol%の範囲にあることを特徴とする請求項3又は4に記載の半導体装置。
- 前記構造物が、ニッケル、亜鉛、金、銀、チタン、銅、白金から選ばれる金属材料より構成されていることを特徴とする請求項1から5のいずれか1項に記載の半導体装置。
- 請求項1から6のいずれか1項に記載の半導体装置であって、前記電子部品は、半導体インバータ回路を含むことを特徴とする自動車搭載用インバータ装置。
- 第2の接合材により電子部品を搭載した絶縁回路基板であって、窒化珪素からなる絶縁板の表裏にそれぞれが前記絶縁板の厚さより厚い銅板であってその厚さの和が0.9mmから2.2mmの範囲にある銅板を接合した絶縁回路基板を準備する工程と、
熱伝導性のベース板上に前記絶縁回路基板を第1の接合材により接合する工程であって、前記第1の接合材の最小厚さを50μm以上に確保しつつ、減圧下において前記第1の接合材をリフローする工程とを有し、
前記第1の接合材中に発生する気体の導通路を形成する構造物が設けられていることを特徴とする半導体装置の製造方法。 - 前記リフローする工程は、前記第1の接合材中に添加され最大粒径50μmから200μmの略球状の構造物の形状が維持される条件で行われることを特徴とする請求項8に記載の半導体装置の製造方法。
- 前記減圧の条件は、前記リフローする工程中に前記第1の接合材中に生成するボイドが基板端部から抜ける程度の条件であることを特徴とする請求項8又は9に記載の半導体装置の製造方法。
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JP2004073305A JP3988735B2 (ja) | 2004-03-15 | 2004-03-15 | 半導体装置及びその製造方法 |
US11/062,867 US7372132B2 (en) | 2004-03-15 | 2005-02-23 | Resin encapsulated semiconductor device and the production method |
DE102005008491A DE102005008491B4 (de) | 2004-03-15 | 2005-02-24 | Leistungs-Halbleitervorrichtung und Verfahren zu ihrer Herstellung |
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DE102012206647B4 (de) * | 2012-04-23 | 2017-08-03 | Ifm Electronic Gmbh | Messgerät für die Prozessmesstechnik mit einer zylinderförmigen Sensorspitze und Verfahren zur Herstellung desselben |
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DE102005008491B4 (de) | 2009-08-20 |
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US20050221538A1 (en) | 2005-10-06 |
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