Patent ID: 8263985
Filing Date: 2012-09-11
Classification: H01L

Abstract:
1. A semiconductor light emitting device, comprising: a substrate; a first conductive semiconductor layer on the substrate; an active layer on the first conductive semiconductor layer; a second conductive semiconductor layer on the active layer and having a first surface adjacent to the active layer and a second surface opposite to the first surface, wherein the second conductive semiconductor layer includes a plurality of recesses disposed on the second surface of the second conductive semiconductor layer; an electrode layer on the second conductive semiconductor layer, wherein the electrode layer comprises a hole corresponding to the one of the plurality of recesses, the hole being circumscribed by the electrode layer, and wherein the plurality of recesses extend toward the first surface without exceeding the first surface of the second conductive semiconductor layer, wherein the second conductive semiconductor layer includes a threading dislocation therein, and wherein one of the plurality of recesses corresponds to a position of the threading dislocation of the second conductive semiconductor layer.