JP6872711B2 - 半導体装置および製造方法 - Google Patents
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Description
本発明者らは、「背景技術」の欄において記載した半導体装置に関し、以下の問題が生じることを見出した。
以下、本開示の実施の形態に係る半導体装置について、図面を参照しながら説明する。なお、以下の実施の形態は、いずれも本開示の一具体例を示すものであり、数値、形状、材料、構成要素、構成要素の配置位置及び接続形態などは、一例であり、本開示を限定するものではない。
まず、窒化物半導体チップ6の構成例について説明する。
からなるダイパッド10下面の収縮量はダイパッド材料の熱収縮量ΔLdに等しいと考えることができる。
2 シリコン基板
3 ボンディングワイヤ
4 InGaAlN層
4a 活性層
4b バッファ層
6 窒化物半導体チップ
6g ゲートパッド
6d ドレインパッド
6s ソースパッド
6t トランジスタ
8 接着剤
9 樹脂
10 ダイパッド
11 端子
11g ゲート端子
11d ドレイン端子
11s ソース端子
11ss ソースセンス端子
12g、12d、12s、12ss 電極
Claims (17)
- 第1の熱膨張係数のシリコン基板、および、前記シリコン基板の表面に接して形成されたInxGayAl1−x−yN層(0≦x≦1、0≦y≦1、0≦x+y≦1)を有する窒化物半導体チップと、
前記第1の熱膨張係数よりも大きい第2の熱膨張係数を有し、Cuを含むダイパッドと、
前記窒化物半導体チップの裏面と前記ダイパッドとを接合する接着剤とを、有し、
前記窒化物半導体チップの厚さは0.200mm以上であり、
前記ダイパッドの厚さtm(mm)と前記窒化物半導体チップの長辺の長さL(mm)とはtm≧2.00×10−3×L2+0.173の関係を満たし、
ゲート端子、ソース端子およびドレイン端子を含む複数の端子を有する矩形状パッケージで、かつ
表面実装型であり、
前記ダイパッドの厚さと前記複数の端子の厚さが等しい
半導体装置。 - 前記ダイパッドの上面の高さは、前記複数の端子の上面の高さと等しい
請求項1に記載の半導体装置。 - 前記ダイパッドと前記複数の端子とは、1枚のリードフレームの一部である
請求項1または2に記載の半導体装置。 - 前記窒化物半導体チップの長辺の長さLは3.12mm以上である、
請求項1〜3の何れか1項に記載の半導体装置。 - 前記複数の端子は、前記半導体装置の平面視において対向する2辺である第1の辺および第2の辺に分散配置され、
前記第1の辺は前記ゲート端子を有し、
前記複数の端子のうち前記第2の辺に配置された全端子は前記ダイパッドと離間している
請求項1〜4の何れか1項に記載の半導体装置。 - 前記ソース端子と前記ドレイン端子とは、前記矩形状パッケージの対向する2辺に互いに排他的に配置される
請求項1〜4の何れか1項に記載の半導体装置。 - 前記ダイパッドの対向する2つの主面のうち前記窒化物半導体チップと接合されていない主面は、前記半導体装置から露出している
請求項1〜6の何れか1項に記載の半導体装置。 - 前記対向する2辺は同数の端子を有する
請求項5または6に記載の半導体装置。 - 前記複数の端子は、前記矩形状パッケージの側面と実質的に面一である
請求項1〜8の何れか1項に記載の半導体装置。 - 前記窒化物半導体チップの厚さtcは0.200mm以上0.377mm以下であり、
前記tm、前記Lおよび前記tcはtm≧2.00×10−3×L2+0.173+(−890×tc2+670×tc−98.4)/593の関係を満たす
請求項1〜9の何れか1項に記載の半導体装置。 - 前記窒化物半導体チップの厚さが0.25mm以上である
請求項1〜10の何れか1項に記載の半導体装置。 - 前記接着剤は、Pb含有はんだである
請求項1〜11の何れか1項に記載の半導体装置。 - 前記接着剤の融点は、前記半導体装置をプリント回路基板に実装するための2次実装用接着剤の融点よりも高い
請求項12に記載の半導体装置。 - 前記接着剤の融点は260℃以上、330℃以下である
請求項1〜13の何れか1項に記載の半導体装置。 - 前記ダイパッドの厚さtmが、前記窒化物半導体チップの前記厚さよりも厚い
請求項1〜14の何れか1項に記載の半導体装置。 - 第1の熱膨張係数のシリコン基板、および、前記シリコン基板の表面に接して形成されたInxGayAl1−x−yN層(0≦x≦1、0≦y≦1、0≦x+y≦1)を有する、厚さ0.200mm以上の窒化物半導体チップと、前記第1の熱膨張係数よりも大きい第2の熱膨張係数を有し、Cuを含むダイパッドと、前記窒化物半導体チップの裏面と前記ダイパッドとを接合する接着剤とを有する半導体装置の製造方法であって、
前記窒化物半導体チップの長辺の長さL(mm)、および前記ダイパッドの厚さtm(mm)のうちの一方の寸法を決定する工程と、
tm≧2.00×10−3×L2+0.173の式の範囲内で、前記長さLおよび前記厚さtmのうちの他方の寸法を決定する工程とを有する
半導体装置の製造方法。 - 前記窒化物半導体チップの長辺の長さLは3.12mm以上である
請求項16に記載の半導体装置の製造方法。
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| JP7090494B2 (ja) * | 2018-07-12 | 2022-06-24 | 株式会社 日立パワーデバイス | 半導体装置および半導体装置の製造方法 |
| JP7260224B2 (ja) | 2019-01-18 | 2023-04-18 | ローム株式会社 | 半導体装置 |
| JP7313197B2 (ja) * | 2019-06-11 | 2023-07-24 | ローム株式会社 | 半導体装置 |
| JP7319494B2 (ja) * | 2020-04-15 | 2023-08-02 | 株式会社東芝 | 半導体装置、半導体装置の検査装置、及び、半導体装置の検査方法 |
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| JP2007123395A (ja) * | 2005-10-26 | 2007-05-17 | Renesas Technology Corp | 半導体装置および半導体装置の製造方法 |
| JP2008034514A (ja) * | 2006-07-27 | 2008-02-14 | Toshiba Corp | 半導体装置 |
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| JP2008294384A (ja) * | 2007-04-27 | 2008-12-04 | Renesas Technology Corp | 半導体装置 |
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| JP2014127715A (ja) * | 2012-12-27 | 2014-07-07 | Toshiba Corp | 半導体装置 |
| WO2015079834A1 (ja) * | 2013-11-29 | 2015-06-04 | シャープ株式会社 | 半導体装置 |
| WO2015079808A1 (ja) * | 2013-11-29 | 2015-06-04 | シャープ株式会社 | 半導体装置 |
| US20160005680A1 (en) * | 2014-07-02 | 2016-01-07 | Nxp B.V. | Exposed-Heatsink Quad Flat No-Leads (QFN) Package |
| JP2016129205A (ja) * | 2015-01-09 | 2016-07-14 | ルネサスエレクトロニクス株式会社 | 半導体装置の製造方法 |
| JP2016146458A (ja) * | 2015-01-28 | 2016-08-12 | 株式会社東芝 | 半導体装置 |
| US9966326B2 (en) * | 2015-03-16 | 2018-05-08 | Unisem (M) Berhad | Lead frames with wettable flanks |
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2017
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- 2017-09-08 JP JP2018542336A patent/JP6872711B2/ja active Active
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| JP6979610B2 (ja) | 2021-12-15 |
| US20250183126A1 (en) | 2025-06-05 |
| WO2018061711A1 (ja) | 2018-04-05 |
| US11189549B2 (en) | 2021-11-30 |
| JPWO2018061711A1 (ja) | 2019-07-18 |
| US12255127B2 (en) | 2025-03-18 |
| JP2021090074A (ja) | 2021-06-10 |
| US20190221503A1 (en) | 2019-07-18 |
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