Patent ID: 8836833

Claim:
A solid-state imaging apparatus having a pixel array in which a plurality of pixels are arranged to form a plurality of rows and a plurality of columns, and a plurality of column signal lines are arranged, each of the plurality of pixels comprising: a first semiconductor region having a first conductivity type; a photoelectric converter including a second semiconductor region arranged in the first semiconductor region and having a second conductivity type that is different from the first conductivity type, and a third semiconductor region arranged in the second semiconductor region and having the first conductivity type; a charge-voltage converter configured to convert charges stored in the photoelectric converter to a voltage; a reset transistor configured to reset the charge-voltage converter; a first amplifier circuit configured to output a signal corresponding to a potential of the charge-voltage converter; and a clamp capacitance connected to an output node of the first amplifier circuit, wherein the clamp capacitance is arranged on a fourth semiconductor region that is arranged in the first semiconductor region and having the second conductivity type, and wherein the second semiconductor region and the fourth semiconductor region are isolated by the first semiconductor region.