JPWO2019098271A1 - 半導体装置 - Google Patents
半導体装置 Download PDFInfo
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- JPWO2019098271A1 JPWO2019098271A1 JP2019554277A JP2019554277A JPWO2019098271A1 JP WO2019098271 A1 JPWO2019098271 A1 JP WO2019098271A1 JP 2019554277 A JP2019554277 A JP 2019554277A JP 2019554277 A JP2019554277 A JP 2019554277A JP WO2019098271 A1 JPWO2019098271 A1 JP WO2019098271A1
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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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Abstract
Description
特許文献1 特開平11−97715号公報
Claims (16)
- 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方向において少なくとも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を更に備える半導体装置。 - 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1方向と垂直な第2方向において連続している
請求項1または2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3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4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4または5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4から6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7または8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7または8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7から10のいずれか一項に記載の半導体装置。 - 前記第1方向と垂直な第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11に記載の半導体装置。 - 前記活性部における前記半導体装置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れている
請求項3から12のいずれか一項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
請求項6、9および10のいずれか一項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
請求項6、9および10のいずれか一項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から3のいずれか一項に記載の半導体装置。
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