Patent ID: 8878121

Claim:
A solid-state imaging device comprising: a first substrate and a second substrate, wherein the first substrate and the second substrate are stacked in vertical relation to one another; a wiring layer disposed in between the first substrate and the second substrate; a light sensing section formed in the second substrate, wherein the light sensing section is disposed on a light incident side of the second substrate and generates a signal charge in accordance with an amount of received light; a non-light incident-surface formed on a side of the substrate opposite the light incident side of the second substrate; an overflow drain region formed in the second substrate, wherein excess signal charge can be directed to the overflow drain region; an overflow barrier formed in the second substrate, wherein the overflow barrier is disposed between the overflow drain region and the light sensing section formed in the second substrate; and a contact member connected to the non-light incident-surface formed on the second substrate, wherein the contact member supplies a desired voltage to the overflow barrier from a wire in the wiring layer, and wherein the desired voltage supplied from the contact member causes the overflow barrier to allow signal charge to flow from the light sensing section to the overflow drain region.