Gallium nitride-based compound semiconductor light-emitting device,申请号EP20100007752-传众专利搜索

Gallium nitride-based compound semiconductor light-emitting device

申请公布号：EP2244311(A2)

申请号：EP20100007752

申请日期：2006.11.14

申请公布日期：2010.10.27

申请人：

SHOWA DENKO K.K.

发明人：KAMEI, KOJI

分类号：H01L33/14;H01L33/42;H01L33/32;H01L33/40

主分类号：H01L33/14

摘要：<p>An object of the present invention is to provide a gallium nitride-based compound semiconductor light-emitting device with low driving voltage and high light emission output, which has a positive electrode comprising a transparent electrically conducting layer put into direct contact with a p-type semiconductor layer. The inventive gallium nitride-based compound semiconductor light-emitting device comprises an n-type semiconductor layer, a light-emitting layer and a p-type semiconductor layer which are formed in this order on a substrate, wherein each layer comprises a gallium nitride-based compound semiconductor, the light-emitting device has a negative electrode and a positive electrode provided on the n-type semiconductor layer and on the p-type semiconductor layer, respectively, the positive electrode is at least partially formed of a transparent electrically conducting film, the transparent electrically conducting film is at least partially in contact with the p-type semiconductor layer, a semiconductor metal mixed layer containing a Group III metal component is present on the semiconductor side surface of the transparent electrically conducting film, and the thickness of the semiconductor metal mixed layer is from 0.1 to 10 nm.</p>