JP7005469B2 - 半導体装置 - Google Patents
半導体装置 Download PDFInfo
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- JP7005469B2 JP7005469B2 JP2018209421A JP2018209421A JP7005469B2 JP 7005469 B2 JP7005469 B2 JP 7005469B2 JP 2018209421 A JP2018209421 A JP 2018209421A JP 2018209421 A JP2018209421 A JP 2018209421A JP 7005469 B2 JP7005469 B2 JP 7005469B2
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- Condensed Matter Physics & Semiconductors (AREA)
- General Physics & Mathematics (AREA)
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- Materials Engineering (AREA)
- Dispersion Chemistry (AREA)
- Structures Or Materials For Encapsulating Or Coating Semiconductor Devices Or Solid State Devices (AREA)
Description
図1は、実施の形態1に係る半導体装置100の断面図である。半導体装置100は、たとえば、家電用、産業用、自動車用、電車用等のパワーモジュールである。
以上説明したように、本実施の形態によれば、半導体装置100は、封止材4が充填されている領域Rg1を囲むケースCs1を備える。ケースCs1は、樹脂で構成されている。ケースCs1には、電極E1が固定されている。電極E1の一部である局部E1xには、ケースCs1を構成する樹脂の一部を領域Rg1に露出させる切り欠きV1が設けられている。
以下においては、本変形例の構成を「構成Ctm1」ともいう。構成Ctm1は、電極E1の局部E1xに複数の切り欠きV1を設けた構成である。また、構成Ctm1は、切り欠きV1の数を、構成Ct1よりも増やした構成である。構成Ctm1は、構成Ct1に適用される。
以上説明したように、本変形例の構成Ctm1によれば、電極E1の局部E1xには、複数の切り欠きV1が設けられている。また、構成Ctm1では、局部E1xに設けられる切り欠きV1の数は、構成Ct1よりも多い。
以下においては、本変形例の構成を「構成Ctm2」ともいう。構成Ctm2は、切り欠きV1が、電極E1の先端E1eまで延在している構成である。構成Ctm2は、構成Ct1および構成Ctm1の全てまたは一部に適用される。
以上説明したように、本変形例によれば、切り欠きV1は、電極E1の先端E1eまで延在している。そのため、気泡存在状況においても、気泡が、図6の位置P1から、切り欠きV1を介して、局部E1xの表面E1s(ワイヤボンド面)側へさらに容易に移動することができる。したがって、気泡が境界B2まで広がらない。そのため、電極E1(局部E1x)と放熱板11との間における絶縁性を十分に確保できる。
以下においては、本変形例の構成を「構成Ctm3」ともいう。構成Ctm3は、切り欠きV1が特徴的な形状を有する構成である。構成Ctm3は、構成Ct1、構成Ctm1および構成Ctm2の全てまたは一部に適用される。
以上説明したように、本変形例によれば、局部E1xのうち、切り欠きV1に接する内面E1svは、だれ面としての曲面Cr1を有する。具体的には、切り欠きV1のうち、境界B1に近い部分程、当該部分の断面積が大きくなるように、当該切り欠きV1は構成されている。そのため、気泡存在状況において、気泡が、図7の位置P1から、曲面Cr1に沿って、局部E1xの表面E1s(ワイヤボンド面)側へさらに容易に移動することができる。
Claims (6)
- 封止材が充填されている領域を囲むケースを備え、
前記ケースは、樹脂で構成されており、
前記ケースには、電極が固定されており、
前記電極は、前記領域に接触する、当該電極の一部である局部を有し、
前記封止材が前記局部を少なくとも覆うように、当該封止材は設けられており、
前記局部には、前記ケースを構成する前記樹脂の一部を前記領域に露出させる切り欠きが設けられており、
前記切り欠きは、前記局部と前記ケースとの境界まで延在しており、
前記切り欠きのうち、前記境界に近い部分程、当該部分の断面積が大きくなるように、当該切り欠きは構成されている
半導体装置。 - 前記局部には、前記切り欠きを含む複数の切り欠きが設けられている
請求項1に記載の半導体装置。 - 前記局部の形状は、長尺状であり、
前記局部は、前記電極の先端を有し、
前記切り欠きは、前記電極の先端まで延在している
請求項1または2に記載の半導体装置。 - 前記局部は、平面視における、前記ケースの中央部に向かって、延在しており、
前記半導体装置は、第1端および第2端を有するワイヤを備え、
前記ワイヤの前記第1端は、前記局部の表面に接続されており、
前記局部が延在している方向である特定方向において、前記第2端は前記第1端よりも、前記ケースの中央部に近く
前記特定方向において、前記切り欠きは、前記第1端と前記第2端との間に存在する
請求項1から3のいずれか1項に記載の半導体装置。 - 前記ケースは、前記封止材が充填されている前記領域の下面に接触する放熱板に接着されており、
前記放熱板は、金属で構成されている
請求項1から4のいずれか1項に記載の半導体装置。 - 前記封止材が充填されている前記領域には、半導体素子が実装されている基板が存在し、
前記基板は、前記放熱板に接続されており、
前記電極は、前記半導体素子または前記基板と電気的に接続されている
請求項5に記載の半導体装置。
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JP2004214294A (ja) | 2002-12-27 | 2004-07-29 | Mitsubishi Electric Corp | 電力用半導体モジュール |
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