Patent ID: 8293560

Claim:
A method of manufacturing a photoelectric conversion device, the method comprising: a step of forming a first insulating film on a semiconductor substrate; a step of forming a gate electrode on the first insulating film with an electrically conductive material such that the first insulating film includes a first portion which is not covered by the gate electrode and a second portion which is covered by the gate electrode; a step of forming a charge accumulation region of a photoelectric converter by implanting impurity ions of a first conductivity type into the semiconductor substrate through the first portion of the first insulating film; a step of removing the first portion after the step of forming a charge accumulation region; a step of forming a second insulating film by oxidation such that the second insulating film covers the semiconductor substrate; and a step of forming a surface region of the photoelectric converter by implanting impurity ions of a second conductivity type opposite to the first conductivity type into the semiconductor substrate through the second insulating film.