JP7623066B2 - 半導体装置 - Google Patents
半導体装置 Download PDFInfo
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- JP7623066B2 JP7623066B2 JP2021145310A JP2021145310A JP7623066B2 JP 7623066 B2 JP7623066 B2 JP 7623066B2 JP 2021145310 A JP2021145310 A JP 2021145310A JP 2021145310 A JP2021145310 A JP 2021145310A JP 7623066 B2 JP7623066 B2 JP 7623066B2
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- electrode
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- semiconductor element
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Description
図8は、熱抵抗を有限要素解析により推定した結果の一例を示すグラフである。横軸にX、縦軸に規格化した熱抵抗θをとっている。Xは、-2から1までの範囲で変化させている。また、縦軸のθは、図6に示す半導体装置200の熱抵抗を、図4に示す従来構造の電子回路体100を有する半導体装置200の熱抵抗を分母として規格化した値である。このため、図中、θ=1を符号CSで示している。ここで、熱抵抗は、半導体素子1aが稼働して所定の発熱量を発生する定常状態における半導体装置200の温度分布から算出した熱量の初期状態からの増分で定義する。この増分が大きいほど、外部への放熱が小さいと考えられるからである。
Claims (8)
- 一方の面に第1の主電極を有し他方の面に第2の主電極及びゲート電極を有する半導体チップと、
前記半導体チップの前記一方の面に第1の接合材を介して接続された第1の電極と、
前記半導体チップの前記他方の面に第2の接合材を介して接続された第2の電極と、を有する半導体装置において、
前記第1の電極は、板状の電極であり、前記半導体チップと重なる領域に溝を有し、
前記溝は、前記第1の電極の厚さ方向に貫通した構成を有し、かつ、平面的に見たときに、前記半導体チップの端部近傍に、前記半導体チップの端部に沿う形状で、前記第1の電極の端部まで到達した形状であり、
前記溝よりも前記半導体チップの中心側の領域を第1の領域とし、前記溝よりも前記半導体チップの端部側の領域を第2の領域としたとき、前記第1の領域と前記第2の領域のそれぞれにおいて、前記半導体チップと前記第1の電極とが前記第1の接合材により接続されているとともに、前記第1の領域を接合する前記第1の接合材と、前記第2の領域を接合する前記第1の接合材とが、前記溝によって分離されている、半導体装置。 - 前記溝は、前記第1の接合材の厚さよりも幅が広い、請求項1記載の半導体装置。
- 前記溝は、前記第2の電極と重なる位置に設けられている、請求項1記載の半導体装置。
- 前記第2の電極における前記半導体チップとの接続面の端部から前記半導体チップの端部までの距離をWとし、前記第2の電極における前記半導体チップとの前記接続面の前記端部から、前記溝の中心線までの距離をJとし、前記溝の中心線が前記第2の電極の端部よりも前記半導体チップの中心側にある場合にはJが負の値をとり、J/WをXと定義したとき、
前記溝の前記中心線の位置は、下記式(1)を満たす、請求項1記載の半導体装置。
-1.2<X<0.3 …(1) - 前記第1の接合材及び前記第2の接合材は、Snを主成分とするはんだである、請求項1記載の半導体装置。
- 前記第2の電極の端部は、平面的に見たときに前記半導体チップよりも内側にあり、前記第1の電極の前記端部は、平面的に見たときに前記半導体チップよりも外側にある、請求項1記載の半導体装置。
- 前記第2の電極の端部は、平面的に見たときに前記半導体チップよりも内側にあり、前記第1の電極の前記端部は、平面的に見たときに前記半導体チップよりも内側にある、請求項1記載の半導体装置。
- 前記溝は、前記溝に連通するように設けられ前記溝から分岐した溝を有する、請求項1記載の半導体装置。
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EP22180895.9A EP4156247A3 (en) | 2021-09-07 | 2022-06-24 | Semiconductor device with a semiconductor chip bonded between a first, plate-shaped electrode with a groove and a second electrode |
TW111126962A TWI823480B (zh) | 2021-09-07 | 2022-07-19 | 半導體裝置 |
US17/874,603 US20230074352A1 (en) | 2021-09-07 | 2022-07-27 | Semiconductor device |
CN202210894999.3A CN115775782A (zh) | 2021-09-07 | 2022-07-28 | 半导体装置 |
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JP2007311579A (ja) | 2006-05-19 | 2007-11-29 | Matsushita Electric Ind Co Ltd | リードフレームおよびこれを使用した半導体装置 |
JP2008034416A (ja) | 2006-07-26 | 2008-02-14 | Denso Corp | 半導体装置 |
JP2013229561A (ja) | 2012-03-30 | 2013-11-07 | Mitsubishi Materials Corp | 接合体の製造方法、パワーモジュールの製造方法、パワーモジュール用基板及びパワーモジュール |
JP2015153986A (ja) | 2014-02-18 | 2015-08-24 | 株式会社デンソー | 半導体装置 |
JP2021077777A (ja) | 2019-11-11 | 2021-05-20 | 株式会社 日立パワーデバイス | 半導体装置 |
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JPS5332672A (en) * | 1976-09-07 | 1978-03-28 | Matsushita Electronics Corp | Lead frame for semiconductor device |
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JPS5766655A (en) * | 1980-10-09 | 1982-04-22 | Mitsubishi Electric Corp | Lead frame for semiconductor device |
JPS6366958A (ja) * | 1986-09-08 | 1988-03-25 | Furukawa Electric Co Ltd:The | 半導体用リ−ドフレ−ムとその製造法 |
JPH0422162A (ja) * | 1990-05-17 | 1992-01-27 | Hitachi Ltd | リードフレームおよびそれを用いた半導体集積回路装置 |
JP2570611B2 (ja) * | 1993-12-10 | 1997-01-08 | 日本電気株式会社 | 樹脂封止型半導体装置 |
JPH0823068A (ja) * | 1994-07-07 | 1996-01-23 | Hitachi Ltd | リードフレームおよびそれを用いて構成された半導体装置 |
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JP5823798B2 (ja) * | 2011-09-29 | 2015-11-25 | ルネサスエレクトロニクス株式会社 | 半導体装置 |
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JP2007311579A (ja) | 2006-05-19 | 2007-11-29 | Matsushita Electric Ind Co Ltd | リードフレームおよびこれを使用した半導体装置 |
JP2008034416A (ja) | 2006-07-26 | 2008-02-14 | Denso Corp | 半導体装置 |
JP2013229561A (ja) | 2012-03-30 | 2013-11-07 | Mitsubishi Materials Corp | 接合体の製造方法、パワーモジュールの製造方法、パワーモジュール用基板及びパワーモジュール |
JP2015153986A (ja) | 2014-02-18 | 2015-08-24 | 株式会社デンソー | 半導体装置 |
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