Patent ID: 7879684

Claim:
A method for manufacturing a semiconductor light-emitting device comprising: forming a semiconductor layer structure, including an active layer, on a semiconductor substrate; forming an electrode on all of a surface of the semiconductor layer structure; forming an image reversal resist having an overhanging shape on the electrode; patterning the electrode by etching, using the image reversal resist as a mask, in which a center portion of an upper face of the electrode is coated with the image reversal resist and end portions of the upper face off the electrode are not coated with the image reversal resist, between ends of the upper face of the electrode and overhanging portions of the image reversal resist; forming a waveguide ridge in the semiconductor layer structure by etching, using the image reversal resist and the electrode, after patterning, as masks; forming an insulating film coating an upper face of the image reversal resist, side faces of the waveguide ridge, and side faces of the electrode; and removing the insulating film on the image reversal resist by liftoff.