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窒化物半導体のテクスチャ構造、窒化物半導体発光素子、及びテクスチャ構造形成方法
专利权人:
沖電気工業株式会社
发明人:
戸田 典彦
申请号:
JP20130055136
公开号:
JP6268724(B2)
申请日:
2013.03.18
申请国别(地区):
日本
年份:
2018
代理人:
摘要:
PROBLEM TO BE SOLVED: To form a textured structure in a deposition apparatus for depositing a GaN layer.SOLUTION: A nitride semiconductor light-emitting diode 10A including a support substrate 11, at least an n-GaN layer 14, a p-GaN layer 16 and a light-emitting layer 15 sandwiched between the n-GaN layer 14 and the p-GaN layer 16 on a surface of the support substrate, there are a plurality of recesses (especially conical shape) having different radiuses in a mixed manner on a surface of the p-GaN layer on the side opposite to the substrate. In addition, the recesses are formed by annealing at a crystal growth temperature and in a corrosive gas atmosphere (in an ammonia gas atmosphere or in a hydrazine atmosphere) and have radiuses within a range of 1-20 μm.
来源网站:
中国工程科技知识中心
来源网址:
http://www.ckcest.cn/home/

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