Patent ID: 8455880
Filing Date: 2013-06-04
Classification: H01L

Abstract:
1. A light emitting device comprising: a conductive support member; a light emitting structure for generating a light on the conductive support member, the light emitting structure comprising a first conductive type semiconductor layer, a second conductive type semiconductor layer, and an active layer; an electrode on the light emitting structure; and an oxide layer between the electrode and the light emitting structure, wherein the light emitting structure comprises an oxygen-injected region where oxygen is injected on an upper portion of the light emitting structure, wherein a thickness of the oxide layer is in a range from about 0.1 Å to about 100 Å, wherein the upper portion of the light emitting structure includes gallium nitride (GaN), and the gallium is outdiffused to an upper surface of the light emitting structure by the oxygen in the oxygen-injected region, the electrode comprises a plurality of layers, wherein the oxide layer comprises at least one of CrO, TiO wherein the contact resistance between the light emitting structure and the electrode is in a range from about 1*10 wherein an lowest layer of the electrode comprises at least one of Cr, Cr-Alloy, Al, Al-Alloy, Ti, Ti-Alloy, Ag, Ag-Alloy, Ni and Ni-Alloy.