Patent ID: 7652299
Filing Date: 2010-01-26
Classification: H01L

Abstract:
1. A nitride semiconductor light-emitting device comprising a substrate and a nitride semiconductor layer including a light-emitting layer stacked on the substrate, wherein a first normal line relative to at least a lateral face of the nitride semiconductor layer between the substrate and the light-emitting layer and a second normal line relative to a lower surface of the nitride semiconductor layer intersect to form an angle θ larger than 90 degrees, wherein the lateral face of the nitride semiconductor layer is an external surface of the nitride semiconductor light-emitting device, the lateral face of the nitride semiconductor layer and a lateral side of the substrate form a discontinuous face, a principal plane of the substrate abuts the lower surface of the nitride semiconductor layer, the principal plane of the substrate and the lateral face of the nitride semiconductor layer form an acute angle, the substrate is formed from a material selected from the group consisting of sapphire and silicon carbide, and the lateral face of the nitride semiconductor layer excludes a lateral face of the light-emitting layer such that the lateral faces do not share a common normal line, the lateral faces being located on a same lateral side of the nitride semiconductor light-emitting device.