发明申请
US20140183594A1 RADIATION-EMITTING SEMICONDUCTOR CHIP HAVING INTEGRATED ESD PROTECTION
有权
具有集成ESD保护功能的辐射发射半导体芯片
- 专利标题: RADIATION-EMITTING SEMICONDUCTOR CHIP HAVING INTEGRATED ESD PROTECTION
- 专利标题(中): 具有集成ESD保护功能的辐射发射半导体芯片
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申请号: US14114044申请日: 2012-04-26
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公开(公告)号: US20140183594A1公开(公告)日: 2014-07-03
- 发明人: Andreas Löffler , Christian Leirer , Rainer Butendeich , Tobias Meyer , Matthias Peter
- 申请人: Andreas Löffler , Christian Leirer , Rainer Butendeich , Tobias Meyer , Matthias Peter
- 申请人地址: DE Regensburg
- 专利权人: OSRAM Opto Semiconductors GmbH
- 当前专利权人: OSRAM Opto Semiconductors GmbH
- 当前专利权人地址: DE Regensburg
- 优先权: DE102011100037.6 20110429
- 国际申请: PCT/EP12/57676 WO 20120426
- 主分类号: H01L33/26
- IPC分类号: H01L33/26
摘要:
A radiation-emitting semiconductor chip having a semiconductor layer sequence based on a nitride compound semiconductor material and having a pn junction includes a first protective layer having deliberately introduced crystal defects, a second protective layer having a higher doping than the first protective layer, wherein the first protective layer protects the semiconductor chip against electrostatic discharge pulses, an active zone that generates radiation disposed downstream of the first protective layer in a growth direction, wherein during operation of the semiconductor chip, a breakdown behavior of the semiconductor layer sequence in a reverse direction in regions having crystal defects differs from regions without crystal defects, and wherein in the event of electrostatic discharge pulses, electrical charge is dissipated in a homogeneously distributed manner via the regions having crystal defects.
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