Patent ID: 7294931

Claim:
A semiconductor structure comprising: an ILD layer formed above a substrate, wherein said ILD layer has a top surface; a trench formed in said ILD layer, wherein said trench has a bottom surface and a sidewall surface; a seed layer formed above said top surface of said ILD layer and above said bottom surface and said sidewall surface of said trench, wherein said seed layer consists of a seed material; an inhibiting layer formed above the portion of said seed layer that is above said top surface of said ILD layer, but not above the portion of said seed layer that is above said bottom surface and said sidewall surface of said trench, wherein said inhibiting layer does not comprise said seed material, and wherein said inhibiting layer is comprised of a material selected from the group consisting of a wax, a grease, an oil or a surfactant; and a metal layer formed above the portion of said seed layer that is above said bottom surface and said sidewall surface of said trench, but not above the portion of said seed layer that is above said top surface of said ILD layer and not above said inhibiting layer.