Patent ID: 9257468
Filing Date: 2016-02-09
CPC Classification: H01L,H04N

Claim Text:
1. A solid-state imaging device comprising: a first substrate and a second substrate which have circuit elements constituting pixels disposed therein are electrically connected to each other, wherein the pixels comprise: a photoelectric conversion element disposed in the first substrate; an amplifier circuit that amplifies a signal generated in the photoelectric conversion element to output the amplified signal; a signal accumulation circuit which is disposed in the second substrate and accumulates the amplified signal which is output from the amplifier circuit without digitization thereof; an output circuit that outputs the amplified signal accumulated in the signal accumulation circuit from the pixel; a noise reduction circuit that reduces noise in the amplified signal which is output from the amplifier circuit; a first reset circuit that resets the photoelectric conversion element; a second reset circuit that resets an input section of the amplifier circuit; a transfer circuit that transfers a signal generated in the photoelectric conversion element to the input section of the amplifier circuit; a second amplifier circuit that amplifies the amplified signal accumulated in the signal accumulation circuit to output a second amplified signal; and a third reset circuit that resets an input section of the second amplifier circuit, wherein the noise reduction circuit removes noise generated in an input section of the amplifier circuit resulting from an operation of a circuit connected to the amplifier circuit or noise resulting from the operating characteristics of the amplifier circuit the noise reduction circuit includes: a clamp section that clamps the amplified signal which is output from the amplifier circuit; and a sample-and-hold section that samples and holds a signal corresponding to the amplified signal clamped in the clamp section and accumulates the amplified signal in the signal accumulation circuit.