Patent ID: 7741653
Filing Date: 2010-06-22
Classification: H01L

Abstract:
1. A gallium nitride-based compound semiconductor light-emitting device comprising 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 comprising a transparent electrically conducting material, the transparent electrically conducting film is at least partially in contact with the p-type semiconductor layer, and a semiconductor metal mixed layer comprising the material of the transparent electrically conducting film and further containing a Group III metal component is present in the transparent electrically conducting film 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.