US Patent 10304497 Power supply wiring in a semiconductor memory device

The present disclosure relates generally to the field of power supply wiring in a semiconductor device. In one embodiment, a semiconductor device is disclosed that includes, an uppermost metal layer including a power supply enhancing wiring, power supply wiring coupled to the power supply enhancing wiring through a via between the uppermost metal layer and a metal layer underlying the uppermost metal layer, and at least one memory device component disposed in vertical alignment with the via between the uppermost metal layer and the metal layer underlying the uppermost metal layer.