Patent ID: 6919585

Claim:
A light-emitting diode which emits light in the 400-550 nm portion of a visible spectrum, said light emitting diode comprising: an undoped SIC substrate; a nitride nucleating buffer structure disposed on an upper surface of said SiC substrate; a p-n junction diode heterostructure disposed on said buffer structure, comprising: a first cladding layer; and a second cladding layer, said first cladding layer and said second cladding layer being comprised of one of binary Group III nitrides and ternary Group III nitrides; a first window layer formed of Mg doped GaN and disposed on said p-n junction diode heterostructure; a second window layer formed of Mg doped GaN and disposed on said first window layer; a conductive layer formed of NiO/Au and disposed on said second window layer, an upper surface of said conductive layer being an upper surface of the light-emitting diode; a first opening formed at one side of the light emitting diode and through said conductive layer such that a first bond pad is disposed on an upper surface of said second window layer; a first electrode disposed on said first bond pad; a second opening formed at another side of the light emitting diode, said second opening forming a three walled notch in said light emitting diode, said second opening being formed through to said first cladding layer on which a second bond pad is disposed; and a second electrode disposed on said bond pad.