JP7149907B2 - 半導体装置および半導体素子 - Google Patents
半導体装置および半導体素子 Download PDFInfo
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- JP7149907B2 JP7149907B2 JP2019160881A JP2019160881A JP7149907B2 JP 7149907 B2 JP7149907 B2 JP 7149907B2 JP 2019160881 A JP2019160881 A JP 2019160881A JP 2019160881 A JP2019160881 A JP 2019160881A JP 7149907 B2 JP7149907 B2 JP 7149907B2
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- semiconductor device
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- HQVNEWCFYHHQES-UHFFFAOYSA-N silicon nitride Chemical compound N12[Si]34N5[Si]62N3[Si]51N64 HQVNEWCFYHHQES-UHFFFAOYSA-N 0.000 claims description 8
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Description
以下の説明において、「活性領域」とは半導体素子のオン状態において主電流が流れる領域である。また、以下において、「外側」とは半導体素子の外周に向かう方向であり、「内側」とは「外側」に対して反対の方向とする。また、以下の記載では、不純物の導電型に関して、n型を「第1導電型」、n型とは反対導電型のp型を「第2導電型」として一般的に定義するが、その逆の定義でも構わない。
<装置構成>
図1は、実施の形態1に係る半導体装置1の構成を示す断面図であり、図2は、半導体装置1に搭載された、半導体素子11の構成を示す平面図である。
このような構成を有する半導体素子11を半導体装置1に搭載するには、図1に示されるように、半導体素子11がMOSトランジスタである場合は、下面となるドレイン電極をスズを主たる材料とする半田材、または銀および銅を主たる材料とするシンタ材などの接合材31を用いて導体基板21に接合する。
Claims (11)
- 基板と、
前記基板に接合された半導体素子と、
前記基板の少なくとも一部と前記半導体素子とを封止する封止樹脂とを備え、
前記半導体素子は、
前記半導体素子のオン状態において主電流が流れる活性領域と、
前記活性領域の周囲の終端領域と、
前記終端領域の絶縁膜上に設けられたアンカー膜と、
前記アンカー膜を含む前記終端領域を少なくとも覆う保護膜と、を有し、
前記アンカー膜は、
前記絶縁膜と異なる材料で構成され、離散的に設けられた複数の開口部を有する、半導体装置。 - 前記アンカー膜は、
平面視で前記終端領域に沿って設けられてループ状をなす、請求項1記載の半導体装置。 - 前記複数の開口部は、
少なくとも前記活性領域側の辺が円弧状をなす平面視形状を有する、請求項1記載の半導体装置。 - 前記複数の開口部の前記平面視形状は、円形をなす、請求項3記載の半導体装置。
- 前記複数の開口部の前記平面視形状は、半円状をなす、請求項3記載の半導体装置。
- 前記複数の開口部の前記平面視形状は、三日月状をなす、請求項3記載の半導体装置。
- 前記複数の開口部は、
最小間隔が5μm以上20μm以下で設けられる、請求項1記載の半導体装置。 - 前記半導体素子は、炭化珪素半導体素子である、請求項1記載の半導体装置。
- 前記保護膜は、
ポリイミドまたはポリアミドを主たる材料として構成された膜である、請求項1記載の半導体装置。 - 前記アンカー膜は、
窒化珪素を主たる材料として構成された膜である、請求項1記載の半導体装置。 - オン状態において主電流が流れる活性領域と、
前記活性領域の周囲の終端領域と、
前記終端領域の絶縁膜上に設けられたアンカー膜と、
前記アンカー膜を含む前記終端領域を少なくとも覆う保護膜と、を有し、
前記アンカー膜は、
前記絶縁膜と異なる材料で構成され、全体に渡って、離散的に設けられた複数の開口部を有する、半導体素子。
Priority Applications (4)
Application Number | Priority Date | Filing Date | Title |
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JP2019160881A JP7149907B2 (ja) | 2019-09-04 | 2019-09-04 | 半導体装置および半導体素子 |
US16/905,733 US11387158B2 (en) | 2019-09-04 | 2020-06-18 | Semiconductor device and semiconductor element |
DE102020122121.5A DE102020122121A1 (de) | 2019-09-04 | 2020-08-25 | Halbleitervorrichtung und Halbleiterelement |
CN202010886116.5A CN112447610A (zh) | 2019-09-04 | 2020-08-28 | 半导体装置及半导体元件 |
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JP2019160881A JP7149907B2 (ja) | 2019-09-04 | 2019-09-04 | 半導体装置および半導体素子 |
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JP2004200532A (ja) | 2002-12-20 | 2004-07-15 | Renesas Technology Corp | 半導体装置およびその製造方法 |
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JP3740117B2 (ja) | 2002-11-13 | 2006-02-01 | 三菱電機株式会社 | 電力用半導体装置 |
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