Patent ID: 7488997

Claim:
A solid-state imaging device, comprising: a plurality of unit pixels, each of which including: a storage well for storing electric charges generated by a photoelectric transducer in accordance with incident light; a transferring unit for transferring the electric charges to a floating diffusion region, the transferring unit including a transferring control element, the transferring control element having a transfer gate and an electric charge-retaining region for retaining the electric charge, the transfer gate being disposed on a substrate with insulation film therebetween, a part of the transfer gate overlapping the storage well as viewed in plan, the electric charge-retaining region provided within the substrate and under the transfer gate; an amplifier for outputting a pixel signal that is amplified based on the electric charge transferred to the floating diffusion region, a first diffusion layer that serves as a transfer path between the floating diffusion region and the electric charge-retaining region; and a second diffusion layer formed over the first diffusion layer.