Patent ID: 7148142

Claim:
A method of transferring a dual damascene pattern from an imaging layer to a transfer layer comprising: depositing a photopolymerizable imaging layer upon the transfer layer; bringing a translucent imprint mold comprising a dual damascene pattern comprised of one or more vias and one or more trenches into contract with the imaging layer; exposing the imaging layer with a source of illumination; separating the imprint mold from the imaging layer; performing a first breakthrough etch to remove one or more residual portions of the imaging layer corresponding to one or more vias; performing a first transfer etch to transfer the one or more vias from the imaging layer to the transfer layer; performing a second breakthrough etch to remove one or more additional portions of the imaging layer corresponding to one or more trenches; and performing a second transfer etch to transfer the one or more trenches from the imaging layer to the transfer layer.