Patent ID: 8518771

Claim:
A method for manufacturing a solid-state imaging device comprising the steps of: forming a semiconductor substrate having a photoelectric conversion portion, a logic circuit region including at least one first gate electrode and a pixel transistor region including a second gate electrode; forming (i) the at least one first gate electrode in the logic circuit region on the semiconductor substrate with a first gate insulating film therebetween, and (ii) the second gate electrode in the pixel transistor region on the semiconductor substrate with a second gate insulating film therebetween; forming a first insulating layer to cover the at least one first gate electrode, the second gate electrode, and the photoelectric conversion portion; forming an offset spacer on a sidewall of the at least one first gate electrode by etch back of the first insulating layer while the photoelectric conversion portion and the pixel transistor region are masked with the first insulating layer; forming extension regions in the semiconductor substrate at both sides of the at least one first gate electrode after the step of forming the offset spacer; and forming lightly doped drain regions in the semiconductor substrate at both sides of the second gate electrode after the step of forming the extension regions.