Patent ID: 7936487

Claim:
A solid-state imaging device comprising: a picture element array area in which a plurality of picture elements are arrayed, each picture element including a photoelectric conversion element; a plurality of first conductive type-amplifying transistors, each transistor being provided for every picture element or every group of picture elements and receiving a charge produced in the photoelectric conversion element or elements by a gate thereof; a second conductive type-common well in which the plurality of first conductive type-amplifying transistors are arranged; a second conductive type-semiconductor region arranged in the second conductive type-well and within the picture element array area, an impurity concentration of the second conductive type-semiconductor region being higher than that of the common well, and a plurality of well contacts arranged in the picture element array area, for supplying a referential voltage to the second conductive type-semiconductor region to suppress a shading depending on a potential distribution in the common well.