Patent ID: 7345315
Filing Date: 2008-03-18
Classification: H01L

Abstract:
1. A light-emitting structure for a light emitting diode (LED), comprising a resonant cavity structure, a contact layer, an n-type metal electrode and a p-type metal electrode, wherein: said resonant cavity structure formed by a metal reflector, a substrate, a buffer layer, an n-GaN based layer, an MQW active layer and a p-type distributed Bragg reflector (DBR), wherein and said substrate comprises sapphire; said contact layer being a p-GaN based layer and formed over said p-type DBR; said n-type metal electrode disposed over an exposing layer of said n-GaN layer; and said p-type metal electrode disposed over said p-GaN layer; wherein said MQW active layer comprises a material so that said MQW active layer generates a light with a wavelength comprising 380-600 nm in response to an applied electric power between said n-type metal electrode and said p-type metal electrode.