Patent ID: 8421105
Filing Date: 2013-04-16
Classification: H01L

Abstract:
1. A semiconductor light-emitting device, comprising: an adhesion layer comprising a top surface and a substantially planar bottom surface, the top surface having a first portion that is substantially flat, and a second portion that has a recessed portion having bottom surfaces having different heights with reference to a bottom surface of the adhesion layer around the first portion of the top surface of the adhesion layer; a reflective electrode directly on the adhesion layer, the reflective electrode comprising a metal material so as to serve as a reflective member; a light-emitting structure directly on the reflective electrode comprising a first conductivity type semiconductor layer, an active layer on the first conductivity type semiconductor layer, and a second conductivity type semiconductor layer on the active layer, a top surface of the second conductivity type semiconductor layer having a roughness; a channel layer directly on the adhesion layer along a bottom edge of the light-emitting structure, a top surface of the channel layer comprising a first portion in directly contact with the first conductivity type semiconductor layer, and a second portion; an insulating layer that extends from the second portion of the channel layer to a top surface of the light-emitting structure; and an electrode on the light-emitting structure, a top surface of the electrode having a roughness, wherein the channel layer includes at least one of a group consisting of ITO, IZO, IZTO, IAZO, IGZO, IGTO, AZO, ATO, ZnO, SiO