Patent ID: 7851838

Claim:
A solid-state imaging device comprising: a semiconductor substrate; a pixel formation region in said substrate and including a pixel made of a photoelectric conversion element; and an element isolation portion in said substrate and comprising an element isolation insulating layer and an impurity element isolation region, wherein, said element isolation insulating layer is positioned in a surface of said substrate, said impurity element isolation region is positioned under said element isolation insulating layer and within said substrate, said impurity element isolation region has at least a portion with a width that is narrower than that of said element isolation insulating layer, said photoelectric conversion element extends to a position under said element isolation insulating layer of said element isolation portion, and said photoelectric conversion element comprises (a) a first conductive type impurity region and a second conductive type impurity region over said first conductive type impurity region, and (b) another second conductive type impurity region formed on said photoelectric conversion element, said impurity element isolation region being electrically connected to said another second conductive type impurity region.