US Patent 7166828 Solid-state image sensing device and cellphone having image processing function

A solid-state image sensing device including an image sensing region in which a matrix of unit pixels, each including a photodiode in a surface portion of a semiconductor substrate, is provided; a read transistor connected between a respective photodiode and a detection node; an amplifying transistor connected to the detection node so as to amplify the signal charge output to the detection node and to output a pixel signal to a signal output line reading out the pixel signal output; a reset transistor connected to the detection node and to a discharge node; and an address transistor connected to a source of the amplifying transistor for selecting an address of the photodiode when an address signal is supplied to a gate.