Patent ID: 7135713

Claim:
A light emitting diode, comprising: a transparent substrate; a reflective layer located on a surface of the transparent substrate; a solder layer on the other surface of the transparent substrate; a semiconductor epitaxial structure located on the solder layer; a transparent conductive layer located on the semiconductor epitaxial structure, wherein the semiconductor epitaxial structure comprises a p-type semiconductor contact layer, a p-type semiconductor cladding layer, a multiple quantum well active layer, a n-type semiconductor cladding layer and a n-type semiconductor contact layer stacked in sequence, wherein the p-type semiconductor layer contacts the solder layer, and the transparent conductive layer covers the n-type semiconductor contact layer, wherein the material of the p-type semiconductor contact layer is AIGaInAsP; the material of the p-type semiconductor cladding layer is AlGaInP; the multiple quantum well active layer comprises an AIGaInP/GaInP structure; the material of the n-type semiconductor cladding layer is AlGaInP; and the material of the n-type semiconductor contact layer is GaAs.