Patent ID: 8248677
Filing Date: 2012-08-21
Classification: H01L,H04N

Abstract:
1. A solid-state imaging device including a picture element region in which a plurality of picture elements, each including a photoelectric conversion element, are arranged, comprising: a plurality of amplifying transistors of a first conductivity type each arranged correspondingly to one or more of the plurality of picture elements, and each of the amplifying transistors including a gate for receiving an electric charge generated in the photoelectric conversion elements; a common well of a second conductivity type in which source and drain regions of the plurality of amplifying transistors are arranged; a plurality of semiconductor regions of the second conductivity type arranged in the common well of the second conductivity type; and a plurality of well contacts arranged in the picture element region, and being electrically connected to the plurality of semiconductor regions of the second conductivity type for supplying a reference voltage to the semiconductor regions, wherein the plurality of picture elements includes a first picture element and a second picture element, one of the well contacts is arranged in the first picture element, and a photodiode or a semiconductor element in the first picture element is smaller than a photodiode or a semiconductor element in the second picture element.