Patent ID: 7183579

Claim:
A GaN-based semiconductor light emitting diode, comprising: a substrate on which a GaN-based semiconductor material is grown; a lower clad layer formed on the substrate, and made of a GaN semiconductor material doped with an n-type dopant; an active layer formed on a designated portion of the lower clad layer, and made of an undoped GaN semiconductor material; an upper clad layer formed on the active layer, and made of a GaN semiconductor material doped with a p-type dopant; an alloy layer which is formed on the upper clad layer to directly contact a surface of the upper clad layer, consists essentially of Zn and Ni, and absorbs hydrogen existing on the surface of said upper clad layer to prevent the p-type dopant from combining with said hydrogen; and an TCO (Transparent Conduct Oxide) layer formed on the alloy layer.