Patent ID: 6498103
Filing Date: 2002-12-24
Classification: H01L

Abstract:
A method for manufacturing a solid-state imaging device, the method comprising:forming a transfer channel portion and a light-receiving portion in a silicon substrate; forming a silicon oxide film on the silicon substrate; forming a silicon nitride film on the silicon oxide film, the silicon nitride film acting as a gate insulating film together with the silicon oxide film above the transfer channel portion and acting as an anti-reflection film above the light-receiving portion; forming a protection film on the silicon nitride film; forming a polysilicon film above the silicon nitride film via the protection film at least above the light-receiving portion; and etching the polysilicon film so as to form a transfer electrode above the transfer channel portion; wherein the etching of the polysilicon film is carried out so that the polysilicon film is removed above the light-receiving portion while the protection portion remains above the light-receiving portion.