Patent ID: 7256416
Filing Date: 2007-08-14
Classification: H01L,H01S

Abstract:
1. A semiconductor light emitting device being a gallium nitride-based semiconductor light emitting device that is prepared by laminating a substrate, and at least a first conductivity type semiconductor layer, an active layer, and a second conductivity type semiconductor layer that are laminated on the substrate sequentially from a side of the substrate in this order, wherein the first conductivity type semiconductor layer has a level difference portion in height in the lamination direction, and an electrode formed on the second conductivity type semiconductor layer is arranged to have narrowing of an electric current at the active layer that is laminated on a portion of the first conductivity type semiconductor layer that has a higher level, wherein plural masks are provided on one surface that is perpendicular to the lamination direction and that is between the substrate and the first conductivity type semiconductor layer in the way that the masks are disposed spacing apart from each other; and, the higher level portion of the first conductivity type semiconductor layer is disposed over the isolating portion whose width is greater than other isolating portions for the masks.