Patent ID: 8604500
Filing Date: 2013-12-10
Classification: H01L

Abstract:
1. A light emitting device comprising: a conductive support member; a reflection layer provided on the conductive support member; an ohmic contact layer provided on the reflection layer and having a bottom surface, wherein the ohmic contact layer has a thickness of substantially 80 nm to 120 nm; a light emitting structure comprising a first conductive type semiconductor layer, an active layer, and a second conductive type semiconductor layer that are coupled to the ohmic contact layer; and an electrode provided on the first conductive type semiconductor layer, wherein the bottom surface of the ohmic contact layer has a surface roughness corresponding to a root mean square (RMS) value substantially in a range from 1 nm to 3 nm and wherein at least one part of an upper surface of the ohmic contact layer is in direct contact with the second conductive type semiconductor layer.