Patent ID: 8154046
Filing Date: 2012-04-10
Classification: H01L

Abstract:
1. A semiconductor light emitting device comprising: a bonding layer; a barrier layer on the bonding layer; an adhesion layer on the barrier layer; a reflective layer on the adhesion layer; a light emitting structure layer on the reflective layer; and a passivation layer comprising an insulating material on a side surface and a top surface of the light emitting structure layer, wherein the light emitting structure layer comprises a first conductive semiconductor layer, a second conductive semiconductor layer, and an active layer between the first conductive semiconductor layer and the second conductive semiconductor layer, wherein the second conductive semiconductor layer is closer to the reflective layer than the first conductive semiconductor layer, wherein a top surface area of the second conductive semiconductor layer is greater than a top surface area of the first conductive semiconductor layer, wherein a bottom surface of the barrier layer covers all of a top surface of the bonding layer, wherein the bonding layer comprises Au—Sn, wherein the barrier layer comprises at least one of Cu or Ti, wherein the reflective layer comprises Ni—Ag, and wherein the adhesion layer comprises Au—Sn.