US Patent 7642499 Image sensor comprising multilayer wire

This image sensor includes a charge increasing portion for increasing the quantity of charges, a first electrode for applying a voltage regulating a region adjacent to the charge increasing portion to a prescribed potential, a second electrode provided adjacently to the first electrode for applying another voltage increasing the quantity of charges in the charge increasing portion, a first wire formed on a prescribed layer for supplying a signal to the first electrode and a second wire formed on a layer different from the prescribed layer for supplying another signal to the second electrode.