发明名称 |
ELECTRONIC AND/OR OPTOELECTRONIC DEVICES GROWN ON FREE-STANDING GaN SUBSTRATES WITH GaN SPACER STRUCTURES |
摘要 |
A GaN-based electronic and/or optoelectronic device (10) formed on a free-standing GaN substrate (12), wherein a thick GaN spacer layer (14) is provided between the device and the substrate, thereby separating the active region of the electronic and/or optoelectronic device from high impurity content at the substrate-epitaxial interface and reducing the detrimental impact of such interfacial impurity on the performance of the electronic and/or optoelectronic device. The GaN spacer (14) layer has a thickness of at least about 0.5 microns, and preferably from about 0.5 micron to about 2 microns.
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申请公布号 |
WO2007002607(A3) |
申请公布日期 |
2009.04.16 |
申请号 |
WO2006US24849 |
申请日期 |
2006.06.27 |
申请人 |
CREE, INC.;HUTCHINS, EDWARD, LLOYD |
发明人 |
HUTCHINS, EDWARD, LLOYD |
分类号 |
H01L33/06;H01L33/32 |
主分类号 |
H01L33/06 |
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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