Patent ID: 8492782

Claim:
A semiconductor light emitting device, comprising: a reflective electrode layer; a second conductive semiconductor layer formed on a portion of a top surface of the reflective electrode layer; an active layer formed on the second conductive semiconductor layer and having a quantum well structure; a first conductive semiconductor layer formed on the active layer; a first electrode formed under one portion of the first conductive semiconductor layer, the first electrode being adjacent to the second conductive semiconductor layer, the active layer and a portion of a side surface of the first conductive semiconductor layer; and an insulating layer having a lower portion, and a side wall portion extended from the lower portion into the first conductive semiconductor layer, wherein the lower portion is horizontally disposed on the reflective electrode layer, comprising a first portion between the second conductive semiconductor layer and the reflective electrode layer, a second portion under the side wall portion, and a third portion under the first electrode, and wherein the insulating layer is configured to insulate the first electrode from the reflective electrode layer, the second conductive semiconductor layer and the active layer.