Patent ID: 8853720

Claim:
A group III nitride semiconductor light-emitting device, comprising: a conductive support; a p-electrode positioned on the conductive support, a p-type layer comprising a group III nitride semiconductor, an active layer, and an n-type layer comprising a surface, which are positioned in turn on the p-electrode; and an n-electrode disposed on the surface of the n-type layer, wherein a plurality of separated grooves are fanned in the surface of the n-type layer in a pattern such that the surface of the n-type layer is continuous, wherein a light-transmitting insulating film is formed on a side surface and a bottom surface of each of the grooves so as to define a void extending from the n-type layer toward the p-type layer, wherein said each of the grooves comprises a depth at least reaching the p-type layer, and wherein the n-electrode is formed in a wiring form.