Patent ID: 7252777
Filing Date: 2007-08-07
Classification: B81C

Abstract:
1. A method of patterning a substrate, said method comprising: forming from a first material, disposed on said substrate, a first film having an original pattern that includes a plurality of projections a subset of which extends from a nadir surface terminating in an apex surface defining a height therebetween, with a portion of said first film in superimposition with said nadir surface defining a nadir portion; removing said nadir portion to expose a region of said substrate in superimposition therewith, defining a plurality of recessions; disposing upon said first film a second material to form a second film having a surface spaced-apart from said apex surface of said plurality of projections and filling said plurality of recessions to form a multi-film stack; and removing said first film and portions of said second film to create a plurality of spaced-apart projections of said second material on said substrate.