Patent ID: 9221957
Filing Date: 2015-12-29
Classification: C08J,G03F

Abstract:
1. A method for producing a pattern of a material on a substrate, the method comprising: receiving a sample, wherein the sample includes a patterned block copolymer on a substrate, and wherein the patterned block copolymer includes a first polymer block domain and a second polymer block domain; exposing the patterned block copolymer on the substrate to a light to generate an oxidized block copolymer on the substrate, wherein the light is effective to oxidize the first polymer block domain in the patterned block copolymer and the light is not effective to oxidize the second polymer block domain in the patterned block copolymer; applying a precursor to the oxidized block copolymer on the substrate to generate a material on the substrate, wherein the precursor infuses into the oxidized first polymer block domain and generates the material in the first polymer block domain and the precursor does not infuse into the second polymer block domain; applying a removal agent to the oxidized block copolymer on the substrate to generate a patterned material on the substrate, wherein the removal agent is effective to remove the first polymer block domain and the second polymer block domain from the substrate, and is not effective to remove the material in the oxidized first polymer block domain.