发明名称 |
light emitting device with enhanced optical scattering |
摘要 |
<p>A light emitting device includes a substrate, a textured layer overlying the substrate, at least one III-nitride layer overlying the textured layer, and a substantially planar light emitting region. Devices incorporating scattering layers may be formed by several different methods. In a first method, an epitaxial layer is deposited then etched to form the textured layer. In a second method, a photomask is deposited and patterned to create openings in the photomask. The textured layer is then preferentially deposited in the openings formed in the photomask. In a third method, the textured layer is deposited under conditions that favor three-dimensional growth, then optionally annealed. <IMAGE></p> |
申请公布号 |
EP1429396(A1) |
申请公布日期 |
2004.06.16 |
申请号 |
EP20030104120 |
申请日期 |
2003.11.07 |
申请人 |
LUMILEDS LIGHTING U.S., LLC |
发明人 |
STEIGERWALD, DANIEL, A.;BHAT, JEROME, C. |
分类号 |
G02B5/02;H01L33/22;(IPC1-7):H01L33/00 |
主分类号 |
G02B5/02 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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