Patent ID: 8728335

Claim:
A method for forming a pattern on a substrate wherein the method comprises (I) applying a coating composition over a first patterned material containing an activator selected from a thermal acid generator, a photo acid generator or an amine crosslinker wherein the coating composition comprises a silsesquioxane resin comprised of the units (HSiO (3-x)/2 (OR′) x ) m (RSiO (3-x)/2 (OR′) x ) n (R 1 SiO (3-x)/2 (OR′) x ) p (R 2 SiO (3-x)/2 (OR′) x ) q wherein R′ is hydrogen atom or a hydrocarbon group having from 1 to 4 carbon atoms; R is a photocurable group selected from groups containing epoxy; groups containing acryloxy functionality, and a vinylether group; R 1 is a hydrophilic organic group; R 2 is any organic auxiliary group; x has a value of 0, 1 or 2; wherein in the resin m has a value of 0.10 to 0.95, n has a value of 0.05 to 0.7; p has a value of 0.05 to 0.5; q has a value of 0 to 0.5; and m+n+p+q≈1; (II) exposing the coating composition to a cure mechanism to produce a cured coating on the surface of the first pattern material; (III) removing any uncured coating composition; (IV) removing the cured coating from any horizontal surfaces resulting in cured coating on sidewalls of the first pattern material; and (V) removing the first pattern material thereby producing a second pattern on the substrate wherein the second pattern comprises the cured coating composition.