Patent ID: 7498624
Filing Date: 2009-03-03
Classification: H01L

Abstract:
1. A solid-state imaging device comprising a plurality of pixels arranged in a row direction and a column direction perpendicular to the row direction, wherein each of said plurality of pixels comprises: (i) a light receiving portion comprising (ii) a first signal read circuit that reads signals corresponding to electric charges generated and stored in the intra-substrate photoelectric conversion portions; and (iii) a second signal read circuit that reads signals corresponding to electric charges generated and stored in the on-substrate photoelectric conversion portion, wherein the electric charges generated and stored in the intra-substrate photoelectric conversion portions are electrons, wherein the electric charges generated and stored in the on-substrate photoelectric conversion portions are positive holes, wherein each of the first signal read circuit and the second signal read circuit comprises an output transistor that converts an electric charge into a signal, a reset transistor that resets an electric charge and a selection transistor that selects the pixel, wherein the output transistor, the reset transistor, and the selection transistor are n-channel MOS transistors, and wherein a drain voltage of the reset transistor of the second signal read circuit is set to be lower than a drain voltage of the reset transistor of the first signal read circuit.