JP6784337B2 - 半導体装置 - Google Patents
半導体装置 Download PDFInfo
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- JP6784337B2 JP6784337B2 JP2019554277A JP2019554277A JP6784337B2 JP 6784337 B2 JP6784337 B2 JP 6784337B2 JP 2019554277 A JP2019554277 A JP 2019554277A JP 2019554277 A JP2019554277 A JP 2019554277A JP 6784337 B2 JP6784337 B2 JP 6784337B2
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- control unit
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- H01L29/0615—Semiconductor bodies ; Multistep manufacturing processes therefor characterised by their shape; characterised by the shapes, relative sizes, or dispositions of the semiconductor regions ; characterised by the concentration or distribution of impurities within semiconductor regions characterised by particular constructional design considerations, e.g. for preventing surface leakage, for controlling electric field concentration or for internal isolations regions for preventing surface leakage or controlling electric field concentration for increasing or controlling the breakdown voltage of reverse biased devices by the doping profile or the shape or the arrangement of the PN junction, or with supplementary regions, e.g. junction termination extension [JTE]
- H01L29/0619—Semiconductor bodies ; Multistep manufacturing processes therefor characterised by their shape; characterised by the shapes, relative sizes, or dispositions of the semiconductor regions ; characterised by the concentration or distribution of impurities within semiconductor regions characterised by particular constructional design considerations, e.g. for preventing surface leakage, for controlling electric field concentration or for internal isolations regions for preventing surface leakage or controlling electric field concentration for increasing or controlling the breakdown voltage of reverse biased devices by the doping profile or the shape or the arrangement of the PN junction, or with supplementary regions, e.g. junction termination extension [JTE] with a supplementary region doped oppositely to or in rectifying contact with the semiconductor containing or contacting region, e.g. guard rings with PN or Schottky junction
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Description
特許文献1 特開平11−97715号公報
Claims (15)
- 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および前記半導体基板の外周端との間に設けられたエッジ終端構造部と
を備え、
前記活性部は、
トランジスタ部と、
前記半導体基板の上面において予め定められた第1方向において前記トランジスタ部と交互に配置されたダイオード部と
を有し、
前記第1方向と垂直な第2方向において前記活性部と対向する前記エッジ終端構造部において前記半導体基板の内部に設けられ、前記第1方向に並んでいる少なくとも2つ以上の前記ダイオード部と対向する範囲に連続して設けられた端部ライフタイム制御部と、
前記少なくとも2つ以上の前記ダイオード部のそれぞれにおいて前記半導体基板の内部に設けられ、且つ、前記第1方向において互いに離れている少なくとも2つ以上の活性部ライフタイム制御部と
を更に備え、
前記端部ライフタイム制御部とそれぞれの前記活性部ライフタイム制御部とが、前記第2方向において連続している半導体装置。 - 前記端部ライフタイム制御部は、前記半導体基板の上面と平行な面において前記活性部を囲んで環状に設けられている
請求項1に記載の半導体装置。 - 前記端部ライフタイム制御部は、前記半導体基板の上面と垂直な深さ方向において、前記半導体基板の中央よりも上側に配置された上側端部ライフタイム制御部を有する
請求項1または2に記載の半導体装置。 - 前記活性部ライフタイム制御部は、前記半導体基板の上面と垂直な深さ方向において、前記半導体基板の中央よりも上側に配置された上側活性部ライフタイム制御部を有し、
前記第1方向において、前記上側活性部ライフタイム制御部と前記上側端部ライフタイム制御部とが連続していない
請求項3に記載の半導体装置。 - 前記活性部の前記第1方向における端部には前記トランジスタ部が配置されており、
前記上側端部ライフタイム制御部は、前記第1方向の端部に設けられた前記トランジスタ部の少なくも一部と重ならないように配置されている
請求項3または4に記載の半導体装置。 - 前記端部ライフタイム制御部は、前記半導体基板の上面と垂直な深さ方向において、前記半導体基板の中央よりも下側に配置された下側端部ライフタイム制御部を有する
請求項3から5のいずれか一項に記載の半導体装置。 - 前記活性部ライフタイム制御部は、前記半導体基板の上面と垂直な深さ方向において、前記半導体基板の中央よりも下側に配置された下側活性部ライフタイム制御部を有し、
前記第2方向において、前記下側活性部ライフタイム制御部と前記下側端部ライフタイム制御部とが連続している
請求項6に記載の半導体装置。 - 前記活性部の前記第1方向における端部には前記トランジスタ部が配置されており、
前記下側端部ライフタイム制御部は、前記第1方向の端部に設けられた前記トランジスタ部の少なくも一部と重ならないように配置されている
請求項6または7に記載の半導体装置。 - 前記活性部の前記第1方向における端部には前記トランジスタ部が配置されており、
前記下側端部ライフタイム制御部は、前記第1方向の端部に設けられた前記トランジスタ部の全体と重なるように配置されている
請求項6または7に記載の半導体装置。 - 前記ダイオード部は、前記半導体基板の内部において前記半導体基板の下面に接して設けられたカソード領域を有し、
前記半導体基板の上面と平行な面において、前記下側端部ライフタイム制御部は前記カソード領域と重ならない領域に配置されている
請求項6から9のいずれか一項に記載の半導体装置。 - 前記第2方向における前記下側端部ライフタイム制御部の端部と、前記第2方向における前記カソード領域の端部とは対向して配置されている
請求項10に記載の半導体装置。 - 前記活性部における前記半導体基板の上面の上方に設けられたゲートランナーを更に備え、
前記活性部ライフタイム制御部は、前記ゲートランナーの下方にも配置されている
請求項1から11のいずれか一項に記載の半導体装置。 - 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および前記半導体基板の外周端との間に設けられたエッジ終端構造部と
を備え、
前記活性部は、
トランジスタ部と、
前記半導体基板の上面において予め定められた第1方向において前記トランジスタ部と交互に配置されたダイオード部と
を有し、
前記第1方向と垂直な第2方向において前記活性部と対向する前記エッジ終端構造部において前記半導体基板の内部に設けられ、前記第1方向に並んでいる少なくとも2つ以上の前記ダイオード部と対向する範囲に連続して設けられた端部ライフタイム制御部と、
前記ダイオード部において前記半導体基板の内部に設けられた活性部ライフタイム制御部と
を更に備え、
前記半導体基板の上面と平行な面において、前記端部ライフタイム制御部と前記活性部ライフタイム制御部とが、前記第2方向において連続していて、
前記端部ライフタイム制御部は、前記半導体基板の上面と垂直な深さ方向において、前記半導体基板の中央よりも上側に配置された上側端部ライフタイム制御部を有し、
前記活性部の前記第1方向における端部には前記トランジスタ部が配置されており、
前記上側端部ライフタイム制御部は、前記第1方向の端部に設けられた前記トランジスタ部の少なくも一部と重ならないように配置されていて、
前記活性部の前記第1方向における端部に設けられた前記トランジスタ部の前記第1方向における幅は、他の前記トランジスタ部の幅よりも大きい半導体装置。 - 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および前記半導体基板の外周端との間に設けられたエッジ終端構造部と
を備え、
前記活性部は、
トランジスタ部と、
前記半導体基板の上面において予め定められた第1方向において前記トランジスタ部と交互に配置されたダイオード部と
を有し、
前記第1方向と垂直な第2方向において前記活性部と対向する前記エッジ終端構造部において前記半導体基板の内部に設けられ、前記第1方向に並んでいる少なくとも2つ以上の前記ダイオード部と対向する範囲に連続して設けられた端部ライフタイム制御部と、
前記ダイオード部において前記半導体基板の内部に設けられた活性部ライフタイム制御部と
を更に備え、
前記半導体基板の上面と平行な面において、前記端部ライフタイム制御部と前記活性部ライフタイム制御部とが、前記第2方向において連続していて、
前記端部ライフタイム制御部は、前記半導体基板の上面と垂直な深さ方向において、前記半導体基板の中央よりも上側に配置された上側端部ライフタイム制御部を有し、
前記活性部の前記第1方向における端部には前記トランジスタ部が配置されており、
前記上側端部ライフタイム制御部は、前記第1方向の端部に設けられた前記トランジスタ部の少なくも一部と重ならないように配置されていて、
前記活性部の前記第1方向における端部に設けられた前記トランジスタ部の前記第1方向における幅は、他の前記トランジスタ部の幅よりも小さい半導体装置。 - 前記端部ライフタイム制御部は、前記半導体基板の上面と垂直な深さ方向において、前記半導体基板の中央よりも下側に配置された下側端部ライフタイム制御部を有し、且つ、前記半導体基板の中央よりも上側に配置された上側端部ライフタイム制御部を有さない
請求項1または2に記載の半導体装置。
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