Patent ID: 8466485

Claim:
A semiconductor light emitting device comprising: a supporting layer; a first electrode layer on the supporting layer and including a first portion and a second portion having a thinner thickness than that of the first portion; a light emitting structure including a n-type semiconductor layer, a p-type semiconductor layer, and an active layer between the n-type semiconductor layer and the p-type semiconductor layer and disposed on the first electrode layer; a metallic layer on the second portion of the first electrode layer and between the first electrode layer and the p-type semiconductor layer; a second electrode layer on the n-type semiconductor layer; and a channel portion which the light emitting structure is not existed on an edge portion of the first electrode layer, wherein the first portion of the first electrode layer directly contacts a bottom surface of the p-type semiconductor layer, wherein the first electrode layer includes a reflective material wherein the n-type semiconductor layer includes at least one of an InGaN layer or AlGaN layer, the p-type semiconductor layer includes at least one of an AlGaN layer or a InAlGaN layer, and the active layer includes at least one of an InGaN layer, AlGaN layer or GaN layer.