Patent ID: 8163188
Filing Date: 2012-04-24
Classification: B82Y,G03F

Abstract:
1. A method of forming an article comprising a patterned functional layer, the method comprising: coating a surface of a substrate with a layer comprising a poly(hydroxyethyl methacrylate); coating a layer comprising functionalizing agent on a surface of the poly(hydroxyethyl methacrylate) layer; wherein the functionalizing agent comprises a polymerizable group and a hydrolyzable group; coating a layer comprising a polymerizable composition on the layer comprising functionalizing agent; contacting a patterned stamp with the layer comprising the polymerizable composition to form a patterned layer comprising the polymerizable composition; polymerizing the patterned layer comprising the polymerizable composition while the patterned stamp is in contact with it to form a patterned layer comprising a polymerized composition; separating the patterned stamp from the patterned layer comprising the polymerized composition to form an article comprising a substrate, a poly(hydroxyethyl methacrylate) layer, a layer comprising functionalizing agent, and a patterned layer comprising a polymerized composition; etching the article from a surface comprising the patterned layer comprising the polymerized composition to form an etched article comprising trenches bounded by a floor comprising exposed substrate, and walls comprising poly(hydroxyethyl methacrylate); coating a functional layer on a surface of the etched article comprising exposed substrate to form an article comprising a functional layer; and treating the article comprising a functional layer with a solvent to lift off the poly(hydroxyethyl methacrylate) layer, thereby forming an article comprising a patterned functional layer in contact with the substrate.