Patent ID: 7864384

Claim:
A solid-state imaging device of an amplification type, comprising a picture element array area defined by a plurality of picture elements arranged two-dimensionally and disposed in a common well of a first conductivity type, each including a photoelectric conversion element and a transistor having a source region and a drain region of a second conductivity type, for amplification, wherein a semiconductor light-receiving region of a second conductivity type respectively serving as each photoelectric conversion element is disposed in the common well, wherein a plurality of first semiconductor regions of the first conductivity type are disposed in the common well, an impurity concentration of the first conductivity type of the plurality of first semiconductor regions being higher than that of the common well, wherein a plurality of contacts are respectively connected to the plurality of the first semiconductor regions, for supplying a reference voltage to the common well through the plurality of first semiconductor regions, and wherein at least some of the plurality of first semiconductor regions are disposed inside the picture element array area of the common well.