Patent ID: 8592843

Claim:
A light emitting device comprising: a light emitting structure including a first conductive type semiconductor layer, an active layer over the first conductive type semiconductor layer, and a second conductive type semiconductor layer over the active layer; a plurality of dielectric layers, one each formed in a plurality of cavities, respectively, the plurality of cavities formed in the light emitting structure; a first electrode over the first conductive type semiconductor layer; and a second electrode layer below the dielectric layers, wherein the second electrode comprises a protruding portion extending into the light emitting structure and the protruding portion is in each of the plurality of cavities, wherein a substantially central portion of the protruding portion spatially overlaps with a substantially central portion of the first electrode, and wherein at least one of the plurality of dielectric layers spatially overlaps with both the substantially central portion of the protruding portion and the substantially central portion of the first electrode, wherein the at least one of the plurality of dielectric layers is interdisposed between the substantially central portion of the protruding portion and the substantially central portion of the first electrode.