Patent ID: 8426313
Filing Date: 2013-04-23
Classification: B81C,B82Y,C08F,G03F,H01L

Abstract:
1. A method of forming a nanostructured polymer material on a substrate, comprising: forming a cylindrical-phase block copolymer material within a trench in a material layer on the substrate, the trench having a neutral wetting floor, opposing sidewalls and ends that are preferentially wetting to a minority block of the block copolymer; and thermally annealing the block copolymer material in a solvent vapor that is non-preferential to any block and at a temperature above the glass transition temperature (T wherein the block copolymer material self-assembles into cylindrical domains of a first block of the block copolymer within a matrix of a second block of the block copolymer material, the self-assembled block copolymer material having a thickness, and the cylindrical domains oriented perpendicular to the floor of the trench and extending through the thickness of the self-assembled block copolymer material in a single array for the length of the trench.