Patent ID: 8754974

Claim:
A solid-state imaging device including a first unit cell and a second unit cell to form a basic cell, a circuit pattern layout of each of the first unit cell and the second cell comprising: at least three photodiodes configured to convert incident light into signal charges and accumulate the signal charges; a transfer gate provided adjacent to each of the at least three photodiodes and configured to read signal charges from the photodiodes; a floating junction configured to receive the signal charges from the at least three photodiodes through the transfer gate and generate variations in potentials; a reset gate provided adjacent to the floating junction and configured to reset the potential of the floating junction to a constant potential; and a reset drain provided adjacent to the reset gate; wherein the at least three photodiode regions are provided on one side of a line symmetric axis passing through the reset drain, and wherein the first unit cell and the second unit cell are arranged in a symmetric relation and the reset drain of the two unit cells is shared.