Patent ID: 8847268
Filing Date: 2014-09-30
Classification: F21K,F21Y,H01L

Abstract:
1. A light emitting device, comprising: a light emitting structure including a first conductive semiconductor layer, an active layer on the first conductive semiconductor layer, and a second conductive semiconductor layer on the active layer; an oxide layer on a top surface of the first conductive semiconductor layer; a first electrode on a top surface of the first conductive semiconductor layer; a second electrode on the second conductive semiconductor layer; and a transmissive electrode layer on a top surface of the second conductive semiconductor layer, wherein the second electrode passes through the transmissive electrode layer, wherein the oxide layer extends from the top surface of the first conductive semiconductor layer to a portion of the top surface of the second conductive semiconductor layer along a lateral surface of the light emitting structure, wherein the second electrode comprises an upper portion and a lower portion under the upper portion, wherein the upper portion of the second electrode is wider than the lower portion of the second electrode, and wherein the upper portion of the second electrode is thicker than the lower portion of the second electrode.