Patent ID: 9577156
Date: 2017-02-21
CPC Classifications: H01L

Claim:
1. A method for producing a Group III nitride semiconductor light-emitting device comprising an n-type semiconductor layer, a light-emitting layer, and a p-type semiconductor layer, the method comprising: forming an n-electrode to be electrically connected to the n-type semiconductor layer; forming a transparent electrode contacted with and on the p-type semiconductor layer; forming a p-electrode to be electrically contacted with the transparent electrode; forming a p-electrode side barrier metal layer on the p-electrode such that the p-electrode side barrier metal layer and the transparent electrode completely cover the p-electrode; forming a p-side insulating layer with a p-side contact space on the transparent electrode; and forming at least one current blocking layer on a portion of the p-type semiconductor layer and right under the p-side contact space; wherein: the p-electrode has an electrode layer containing at least one of Ag and Al; in the forming the n-electrode and the forming the p-electrode side barrier metal layer, the p-electrode side barrier metal layer is formed on the p-electrode while the n-electrode to be electrically connected to the n-type semiconductor layer is formed; the n-electrode and the p-electrode side barrier metal layer are deposited in the same layered structure; and the p-electrode comprises a p-wiring electrode and a p-contact electrode, in the forming the p-electrode, forming the p-wiring electrode on the p-side insulating layer and forming the p-contact electrode which contacts with the transparent electrode through the p-side contact space.