Patent ID: 6458612
Filing Date: 2002-10-01
Classification: H01L

Abstract:
A method of fabricating a high efficiency light-emitting diode, comprising the steps of:forming a first type ohmic contact layer on a semiconductor substrate; forming a double heterostructure on said first type ohmic contact layer wherein said double heterostructure having a first type cladding layer, an undoped active layer and a second type cladding layer; forming a second type ohmic contact layer on said second type cladding layer; adhering a transparent subtrate to said second type ohmic contact layer; performing an etching step to remove said semiconductor substrate; etching said first type cladding layer and said undoped active layer by using said second type ohmic contact layer as an etching stopper; forming a first electrode on said first type ohmic contact layer; and forming a second electrode on said second type ohmic contact layer.