Patent ID: 6174747
Filing Date: 2001-01-16
Classification: H01L,H01S

Abstract:
A method of fabricating a ridge waveguide semiconductor light-emitting device comprising the steps of:(i) sequentially forming a first conductivity type cladding layer over a substrate, a first undoped confinement layer over the first conductivity type cladding layer, an active layer over the first undoped confinement layer, a second undoped confinement layer over the active layer, a second conductivity type cladding layer over the second undoped confinement layer, a second conductivity type barrier reduction layer over the second conductivity type cladding layer, and a second conductivity type cap layer over the second conductivity type barrier reduction layer;(ii) partially etching the second conductivity type cap layer, the second conductivity type barrier reduction layer and the second conductivity type cladding layer to a position near the second confinement layer to form a ridge waveguide;(iii) forming a photoresist layer to mask the ridge waveguide;(iv) removing the second conductivity type cap layer which is not covered by the photoresist layer, and then removing the photoresist layer; and(v) forming a metal oxide and a metal layer thereon.