发明授权
- 专利标题: Light emitting device with reduced EPI stress
- 专利标题(中): 具有降低EPI应力的发光器件
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申请号: US13878837申请日: 2011-10-07
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公开(公告)号: US09093630B2公开(公告)日: 2015-07-28
- 发明人: Frederic Stephane Diana , Yajun Wei , Stefano Schiaffino , Brendan Jude Moran
- 申请人: Frederic Stephane Diana , Yajun Wei , Stefano Schiaffino , Brendan Jude Moran
- 申请人地址: NL Eindhoven
- 专利权人: Koninklijke Philips Electronics N.V.
- 当前专利权人: Koninklijke Philips Electronics N.V.
- 当前专利权人地址: NL Eindhoven
- 国际申请: PCT/IB2011/054430 WO 20111007
- 国际公布: WO2012/049602 WO 20120419
- 主分类号: H01L33/00
- IPC分类号: H01L33/00 ; H01L33/64 ; H01L33/40 ; H01L33/62 ; H01L23/495
摘要:
Elements are added to a light emitting device to reduce the stress within the light emitting device caused by thermal cycling. Alternatively, or additionally, materials are selected for forming contacts within a light emitting device based on their coefficient of thermal expansion and their relative cost, copper alloys being less expensive than gold, and providing a lower coefficient of thermal expansion than copper. Elements of the light emitting device may also be structured to distribute the stress during thermal cycling.
公开/授权文献
- US20130193476A1 LIGHT EMITTING DEVICE WITH REDUCE EPI STRESS 公开/授权日:2013-08-01
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