JP7420132B2 - 半導体装置 - Google Patents
半導体装置 Download PDFInfo
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- JP7420132B2 JP7420132B2 JP2021195999A JP2021195999A JP7420132B2 JP 7420132 B2 JP7420132 B2 JP 7420132B2 JP 2021195999 A JP2021195999 A JP 2021195999A JP 2021195999 A JP2021195999 A JP 2021195999A JP 7420132 B2 JP7420132 B2 JP 7420132B2
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- H01L29/86—Types of semiconductor device ; Multistep manufacturing processes therefor controllable only by variation of the electric current supplied, or only the electric potential applied, to one or more of the electrodes carrying the current to be rectified, amplified, oscillated or switched
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Description
特許文献1 WO2011/52787号
Claims (12)
- バルク・ドナーを含む半導体基板と、
前記半導体基板に設けられた活性部と、
前記半導体基板の上面において、前記活性部と前記半導体基板の端辺との間に設けられたエッジ終端構造部と
を備え、
前記エッジ終端構造部は、前記半導体基板の上面に選択的に露出する第1導電型の半導体領域を含み、
前記半導体領域は、水素を含み、且つ、前記バルク・ドナーの濃度よりも高いドナー濃度のエッジ高濃度領域を含み、
前記エッジ終端構造部は、前記半導体基板の上面側に設けられ、前記半導体基板の内部の電界集中を緩和する第2導電型の電界集中緩和領域を含み、
前記電界集中緩和領域は、前記水素を含む
半導体装置。 - バルク・ドナーを含む半導体基板と、
前記半導体基板に設けられた活性部と、
前記半導体基板の上面において、前記活性部と前記半導体基板の端辺との間に設けられたエッジ終端構造部と
を備え、
前記エッジ終端構造部は、前記半導体基板の上面に選択的に露出する第1導電型の半導体領域を含み、
前記半導体領域は、水素を含み、且つ、前記バルク・ドナーの濃度よりも高いドナー濃度のエッジ高濃度領域を含み、
前記エッジ高濃度領域は、前記半導体基板の前記上面に接している
半導体装置。 - 前記エッジ終端構造部は、前記半導体基板の上面側に設けられ、前記半導体基板の内部の電界集中を緩和する第2導電型の電界集中緩和領域を含む
請求項2に記載の半導体装置。 - 前記電界集中緩和領域は、前記水素を含む
請求項3に記載の半導体装置。 - 前記電界集中緩和領域は、VOH欠陥を含む
請求項1または4に記載の半導体装置。 - 前記電界集中緩和領域は、複数のガードリングである
請求項1または3に記載の半導体装置。 - 前記エッジ終端構造部は、前記ガードリングの上面を覆う層間絶縁膜と、前記層間絶縁膜上に設けられ導電材料で形成される複数のフィールドプレートとを含み、
前記フィールドプレートは、前記層間絶縁膜に設けられた貫通孔を通って前記ガードリングに接続されている
請求項6に記載の半導体装置。 - 前記エッジ終端構造部は、2つの前記ガードリングの間に前記エッジ高濃度領域が設けられている
請求項6または7に記載の半導体装置。 - 前記エッジ高濃度領域は、前記半導体基板の前記上面に接している
請求項1から8のいずれか一項に記載の半導体装置。 - 前記エッジ高濃度領域におけるドーピング濃度は、平坦である
請求項1から9のいずれか一項に記載の半導体装置。 - 前記エッジ高濃度領域におけるドーピング濃度は、7.0×1013/cm3以上、8.0×1013/cm3以下である
請求項10に記載の半導体装置。 - 上面視において前記活性部を囲む外周ゲート配線を更に備え、
前記エッジ終端構造部は、前記半導体基板の端辺と、前記外周ゲート配線との間に配置されている
請求項1から11のいずれか一項に記載の半導体装置。
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JP2016009728A (ja) | 2014-06-23 | 2016-01-18 | トヨタ自動車株式会社 | 半導体装置 |
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