Patent ID: 7153713

Claim:
A method for manufacturing a high efficiency light-emitting diode (LED), comprising: providing a substrate, wherein the substrate comprises an N-type buffer layer, an N-type cladding layer and an active layer stacked thereon in sequence; forming a first P-type cladding layer on the active layer; performing a growth-interruption step and introducing a catalyst, so as to form a plurality of nuclei sites on a surface of the first P-type cladding layer; forming a second P-type cladding layer on the first P-type cladding layer by using the nuclei sites, so as to make the second P-type cladding layer have a mesa-hillock surface; forming a contact layer on the second P-type cladding layer; and forming a transparent electrode on the contact layer; and wherein the growth-interruption step further comprises using a reactive gas selected from the group consisting of NH 3 , N 2 and H 2 .