Patent ID: 8603386

Claim:
A method for forming a pattern in a film carried on a substrate, said method comprising: obtaining a mold of a material, which mold is hard relative to the film, the film comprising a polymeric composition deformable by said mold; the mold having first and second nanoscale protruding features spaced apart from each other and a recess formed thereby, the first and second features and the recess having a shape forming a mold pattern and providing at least one mold pattern lateral dimension which is less than 200 nm; urging the mold into the film under a molding pressure, whereby the thickness of the film under the protruding features of the mold are reduced, thereby forming the mold pattern in the film; solidifying the mold-deformed film; removing the mold from the film; and removing from the film the nanoscale areas of reduced thickness, thereby exposing portions of the surface of the substrate which underlie the nanoscale areas of reduced thickness such that the exposed portions of the surface of the substrate substantially replicate the mold pattern and have at least one lateral dimension which is less than 200 nm.