Patent ID: 8482096

Claim:
A method for manufacturing a semiconductor photodetector, comprising, sequentially: forming an insulating film on a surface of a semiconductor substrate; forming an opening in said insulating film, thereby exposing part of said surface of said semiconductor substrate; forming an electrode in physical and electrical contact with said surface of said semiconductor substrate, in the opening, and covering only a part of said insulating film; forming a patterned protective resist film covering said insulating film and leaving said electrode exposed; forming a metal power supply layer on said protective resist film and on and in physical and electrical contact with said electrode that is exposed with respect to said protective resist film; forming a patterned plating resist film covering said metal power supply layer, except opposite said electrode, said metal power supply layer being exposed opposite said electrode; plating a plated metal layer on said metal power supply layer where said metal power supply layer is exposed, opposite said electrode; removing said plating resist film; forming a patterned etching resist covering said plated metal layer and leaving said metal power supply layer exposed where said plated metal layer is absent; etching and removing the part of said metal power supply layer that is not covered by said etching resist film and said plated metal layer, thereby exposing said protective resist film; and removing said protective resist film without etching said insulating film.