Patent ID: 7833896

Claim:
A method of manufacturing a semiconductor device, the method comprising: providing a workpiece, the workpiece having at least one conductive pad with an overlying passivation layer; forming an opening in the passivation layer, thereby at least partially exposing the at least one conductive pad, the passivation layer having a top surface and the opening in the passivation layer having sidewalls; forming a barrier layer over the at least one conductive pad, wherein the barrier layer lines the sidewalls of the opening in the passivation layer and is disposed over a top portion of the passivation layer proximate the opening such that the barrier layer has a top surface over the top surface of the passivation layer; forming a conductive cap over the barrier layer within the opening in the passivation layer, the conductive cap completely filling the opening; and recessing the conductive cap to a height below the top surface of the passivation layer and the top surface of the barrier layer.