Patent ID: 8981398
Filing Date: 2015-03-17
Classification: H01L

Abstract:
1. A semiconductor light emitting device comprising: a substrate; wherein the stack film has a tapered shape in cross-section, with a width of a film plane gradually increasing from the n-type nitride semiconductor layer toward the p-type nitride semiconductor layer, and concavities and convexities are provided in a region of the upper face of the n-type nitride semiconductor layer, and wherein the metal layer comprises: a first metal layer provided between the substrate and the p-type nitride semiconductor layer; and a second metal layer provided between the p-type nitride semiconductor layer and the first metal layer and having a width that is smaller than a width of the first metal layer but is larger than a width of the p-type nitride semiconductor layer, wherein the first film covers a surface of the second metal layer other than a region in contact with the p-type nitride semiconductor layer, and a surface of the first metal layer other than a region in contact with the second metal layer.