JP7390826B2 - 半導体装置および半導体装置の製造方法 - Google Patents
半導体装置および半導体装置の製造方法 Download PDFInfo
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- JP7390826B2 JP7390826B2 JP2019158361A JP2019158361A JP7390826B2 JP 7390826 B2 JP7390826 B2 JP 7390826B2 JP 2019158361 A JP2019158361 A JP 2019158361A JP 2019158361 A JP2019158361 A JP 2019158361A JP 7390826 B2 JP7390826 B2 JP 7390826B2
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Description
図1に示すように、パワー半導体モジュール50においては、絶縁基板2の一方の面であるおもて面に銅などの導電性板3、他方の面である裏面には銅などの放熱板4が配置されて積層基板を構成する。積層基板の導電性板3のおもて面に、はんだ等の接合材8を介して、複数のパワー半導体チップ1が搭載されて積層組立体を構成する。外部に信号を取り出す金属端子5は、導電性板3上に接合材8で接合されている。さらにパワー半導体チップ1のおもて面には、パワー半導体チップ1と金属端子5を電気的に接続しているワイヤ6が設けられている。そして、これらの部材の少なくとも表面は、モールド樹脂7で被覆されている。
2、102 絶縁基板
3、103 導電性板
4、104 放熱板
5、105 金属端子
6、106 ワイヤ
7、107 モールド樹脂
8、108 接合材
9 ドット状の孔
50、150 パワー半導体モジュール
120 アンカー層
121 凹部
Claims (8)
- 半導体素子と、
前記半導体素子をおもて面に搭載した導電性板と、
前記半導体素子と前記導電性板の少なくともおもて面とを内部に封入する樹脂と、
を備え、前記導電性板はレーザー光照射で形成された複数の孔をおもて面に有し、
前記複数の孔は、孔の中心と隣り合う孔の中心との距離は150μm~500μmであることを特徴とする半導体装置。 - 前記複数の孔は、円形または楕円形の平面形状であることを特徴とする請求項1に記載の半導体装置。
- 前記複数の孔は、V字型の断面形状であることを特徴とする請求項1または2に記載の半導体装置。
- 前記複数の孔は、内部の幅が開口部の幅より広い断面形状であることを特徴とする請求項1または2に記載の半導体装置。
- 前記複数の孔は、開口部に隆起した部分がないことを特徴とする請求項1~4のいずれか一つに記載の半導体装置。
- 前記複数の孔は、中心軸が前記導電性板のおもて面と垂直の方向に対して傾斜していることを特徴とする請求項1~5のいずれか一つに記載の半導体装置。
- 前記複数の孔は、側面に複数の突起を有することを特徴とする請求項1~6のいずれか一つに記載の半導体装置。
- 導電性板にレーザー光を照射することにより、前記導電性板のおもて面に複数の孔を形成する第1工程と、
前記導電性板のおもて面に半導体素子を搭載する第2工程と、
前記半導体素子と前記導電性板の少なくともおもて面とを樹脂の内部に封入する第3工程と、
を含み、
前記第1工程では、前記複数の孔を、孔の中心と隣り合う孔の中心との距離を150μm~500μmに形成することを特徴とする半導体装置の製造方法。
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WO2018173921A1 (ja) | 2017-03-23 | 2018-09-27 | 株式会社 東芝 | セラミックス金属回路基板およびそれを用いた半導体装置 |
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