Patent ID: 8563997

Claim:
A semiconductor light emitting device, comprising: a first semiconductor layer comprising a flat top surface and a plurality of concaves; a reflector within the plurality of concaves of the first semiconductor layer; a second semiconductor layer on the first semiconductor layer; a third semiconductor layer on the second semiconductor layer; and an active layer between the second semiconductor layer and the third semiconductor layer, wherein the reflector has a different material from the first semiconductor layer and the second semiconductor layer, wherein the flat top surface of the first semiconductor layer is physically contacted with a lower surface of the second semiconductor layer and is disposed between the plurality of concaves, wherein the plurality of concaves are spaced apart from each other and have an interval from a lower surface of the first semiconductor layer, wherein the second semiconductor layer is formed of a conductive semiconductor layer doped with a dopant, wherein the reflector is disposed between the first semiconductor layer and the second semiconductor layer, and wherein a lower vertex point of the reflector is physically contacted with the first semiconductor layer.