- 专利标题: Charge Carrier Extraction Inverse Diode
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申请号: US15693392申请日: 2017-08-31
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公开(公告)号: US20190067493A1公开(公告)日: 2019-02-28
- 发明人: Kyoung Wook Seok
- 申请人: IXYS, LLC
- 申请人地址: US CA Milpitas
- 专利权人: IXYS, LLC
- 当前专利权人: IXYS, LLC
- 当前专利权人地址: US CA Milpitas
- 主分类号: H01L29/861
- IPC分类号: H01L29/861 ; H01L29/06 ; H01L29/40 ; H01L29/66
摘要:
An inverse diode die is “fast” (i.e., has a small peak reverse recovery current) due to the presence of a novel topside P+ type charge carrier extraction region and a lightly-doped bottomside transparent anode. During forward conduction, the number of charge carriers in the N-type drift region is reduced due to holes being continuously extracted by an electric field set up by the P+ type charge carrier extraction region. Electrons are extracted by the transparent anode. When the voltage across the device is then reversed, the magnitude of the peak reverse recovery current is reduced due to there being a smaller number of charge carriers that need to be removed before the diode can begin reverse blocking mode operation. Advantageously, the diode is fast without having to include lifetime killers or otherwise introduce recombination centers. The inverse diode therefore has a desirably small reverse leakage current.
公开/授权文献
- US10424677B2 Charge carrier extraction inverse diode 公开/授权日:2019-09-24
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