JP6359455B2 - 半導体回路基板およびそれを用いた半導体装置並びに半導体回路基板の製造方法 - Google Patents
半導体回路基板およびそれを用いた半導体装置並びに半導体回路基板の製造方法 Download PDFInfo
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- JP6359455B2 JP6359455B2 JP2014539744A JP2014539744A JP6359455B2 JP 6359455 B2 JP6359455 B2 JP 6359455B2 JP 2014539744 A JP2014539744 A JP 2014539744A JP 2014539744 A JP2014539744 A JP 2014539744A JP 6359455 B2 JP6359455 B2 JP 6359455B2
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Description
(実施例1〜10および比較例1〜3)
絶縁性(セラミックス)基板(縦30mm×横35mm)として、アルミナ基板(厚さ0.635mm、熱伝導率15W/m・K、3点曲げ強度450MPa)、窒化アルミニウム基板(厚さ0.635mm、熱伝導率180W/m・K、3点曲げ強度400MPa)、窒化珪素基板(厚さ0.320mm、熱伝導率90W/m・K、3点曲げ強度650MPa)を用意した。
2…絶縁性基板
3…導体部(銅回路板)
4…導体部(裏導体部、裏回路板)
5…絶縁性基板と導体部との接合層
6…接合層のはみ出し領域(幅)
7…半導体素子
8…半導体素子を接合するための接合層
9…ヒートシンク
Claims (12)
- セラミックス基板から成る絶縁性基板上に金属板から成る導体部を設けた半導体回路基板において、導体部の半導体素子搭載部の表面粗さが、算術平均粗さRaで0.3μm以下であり、十点平均粗さRzjisで2.5μm以下であり、最大高さRzで2.0μm以下であり、かつ算術平均うねりWaが0.5μm以下であり、上記絶縁性基板の厚さをt1、前記導体部の厚さをt2としたとき、0.1≦t2/t1≦50であり、上記導体部が、銅、銅合金、アルミニウムおよびアルミニウム合金のいずれか1種からなることを特徴とする半導体回路基板。
- 前記導体部の側面端部の断面角度が45°以下であることを特徴とする請求項1に記載の半導体回路基板。
- 前記導体部が金属板から成る一方、前記絶縁性基板がセラミックス基板から成り、上記金属板とセラミックス基板とを接合する接合層は上記金属板からのはみ出し領域の幅が0.2mm以下であることを特徴とする請求項1ないし請求項2のいずれか1項に記載の半導体回路基板。
- 前記絶縁性基板が、アルミナ基板、窒化アルミニウム基板、窒化珪素基板および絶縁樹脂基板のいずれか1種で構成されることを特徴とする請求項1ないし請求項3のいずれか1項に記載の半導体回路基板。
- 請求項1ないし請求項4のいずれか1項に記載の半導体回路基板の導体部に半導体素子を搭載したことを特徴とする半導体装置。
- 前記半導体素子がSi素子、GaN素子およびSiC素子から選択される1種以上であることを特徴とする請求項5記載の半導体装置。
- 前記半導体素子が接合材を介して前記導体部に接合されていることを特徴とする請求項5ないし請求項6のいずれか1項に記載の半導体装置。
- 前記半導体素子が接合材を介さずに前記導体部に直接接合されていることを特徴とする請求項5ないし請求項6のいずれか1項に記載の半導体装置。
- セラミックス基板から成る絶縁性基板上に金属板から成る導体部を形成する導体部形成工程と、上記導体部の半導体素子搭載部の表面粗さを算術平均粗さRaで0.3μm以下にし、十点平均粗さRzjisで2.5μm以下にし、最大高さRzで2.0μm以下にし、かつ算術平均うねりWaを0.5μm以下にする表面加工工程と、上記絶縁性基板の厚さをt1、上記導体部の厚さをt2としたとき、0.1≦t2/t1≦50でとなるように厚さを調整する工程とを具備し、上記導体部を、銅、銅合金、アルミニウムおよびアルミニウム合金のいずれか1種の金属板から形成することを特徴とする半導体回路基板の製造方法。
- 前記表面加工工程が、研磨工程であることを特徴とする請求項9記載の半導体回路基板の製造方法。
- 前記研磨工程が、エッチング工程であることを特徴とする請求項10記載の半導体回路基板の製造方法。
- 前記研磨工程が、プレス加工であることを特徴とする請求項10記載の半導体回路基板の製造方法。
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JP2012222239 | 2012-10-04 | ||
JP2012222239 | 2012-10-04 | ||
PCT/JP2013/076645 WO2014054609A1 (ja) | 2012-10-04 | 2013-10-01 | 半導体回路基板およびそれを用いた半導体装置並びに半導体回路基板の製造方法 |
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JPWO2014054609A1 JPWO2014054609A1 (ja) | 2016-08-25 |
JP6359455B2 true JP6359455B2 (ja) | 2018-07-18 |
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US (1) | US9277639B2 (ja) |
JP (1) | JP6359455B2 (ja) |
CN (1) | CN104718615B (ja) |
WO (1) | WO2014054609A1 (ja) |
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WO2015132969A1 (ja) * | 2014-03-07 | 2015-09-11 | 三菱電機株式会社 | 絶縁基板及び半導体装置 |
EP2918191B1 (en) | 2014-03-11 | 2024-01-24 | The Procter & Gamble Company | Head for an oral care implement |
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EP3251551B1 (en) | 2016-06-03 | 2020-03-18 | The Procter and Gamble Company | Head for an oral care implement and oral care implement |
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JP7048493B2 (ja) * | 2016-07-14 | 2022-04-05 | 株式会社東芝 | セラミックス回路基板および半導体モジュール |
EP3492441B1 (en) * | 2016-07-28 | 2024-10-16 | Kabushiki Kaisha Toshiba | Joined body, circuit board and semiconductor device |
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WO2018220819A1 (ja) * | 2017-06-02 | 2018-12-06 | 三菱電機株式会社 | 半導体素子接合用基板、半導体装置および電力変換装置 |
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JP4442609B2 (ja) * | 2007-01-18 | 2010-03-31 | 富士電機システムズ株式会社 | 半導体装置およびその製造方法 |
JP4864757B2 (ja) * | 2007-02-14 | 2012-02-01 | 東京エレクトロン株式会社 | 基板載置台及びその表面処理方法 |
JP5133960B2 (ja) * | 2009-10-22 | 2013-01-30 | 電気化学工業株式会社 | 半導体搭載用回路基板及びその製造方法 |
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