发明申请
US20130193476A1 LIGHT EMITTING DEVICE WITH REDUCE EPI STRESS 有权
具有降低EPI应力的发光装置

LIGHT EMITTING DEVICE WITH REDUCE EPI STRESS
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.
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