Patent ID: 8529779

Claim:
A method for producing surface features, comprising: providing a combination of a block copolymer with additional material, said block copolymer comprising a first block of a first polymer, said first block being covalently bonded to a second block of a second polymer to form a repeating unit of the block copolymer, said first and second polymers being different, said additional material being selectively miscible with said first polymer; adhering a first layer onto a surface of a substrate, wherein said first layer comprises an organic compound; forming a film of said combination directly onto a surface of said first layer, wherein in response to said forming, nanostructures of said additional material self-assemble within said first polymer block, said nanostructures self-aligning perpendicular to said surface of said first layer; and etching said film of said combination and said first layer, said nanostructures having an etch rate lower than an etch rate of said block copolymer with respect to said etching, said nanostructures having an etch rate lower than an etch rate of said first layer with respect to said etching, wherein completion of said etching results in: (i) removal of all of said film and a first portion of said first layer, (ii) leaving a remaining portion of said first layer comprising a plurality of nanoshapes on said surface of said substrate such that said nanoshapes are distributed in a first direction that is parallel to the surface of the substrate, (iii) leaving a plurality of hole regions distributed in the first direction such that each hole region is disposed between successive nanoshapes of said plurality of nanoshapes, and (iv) leaving said substrate unetched by said etching, wherein said nanoshapes are encompassed in their entirety by the remaining portion of said first layer, wherein each hole region includes therein a portion of a surrounding ambient atmosphere, and wherein said removal of all of said film results in a top surface of each nanoshape being directly exposed to said surrounding ambient atmosphere.