Patent ID: 7608390
Filing Date: 2009-10-27
Classification: G03F,Y10S

Abstract:
1. A method of forming a patterned layer on a substrate, the method comprising: providing a substrate having a material layer on a surface thereof; depositing a photoresist composition on the substrate to form a photoresist layer on the material; applying a top antireflective coating and barrier layer material on the photoresist layer to form a top antireflective and barrier layer, said top antireflective coating and barrier layer material comprising a polymer selected from the group consisting of poly(2-acrylamido-2-methyl-1-propanesulfonic acid, 4,4,-ditrifluoromethyl-4-hydroxybutan-2-yl methacrylate); poly[2-acrylamido-2-methyl-1-propanesulfonic acid, 14,4,-ditrifluoromethyl-4-hydroxybutan-2-yl methacrylate acrylate, (perfluorooctyl)propyl methacrylate]; poly(2-acrylamido-2-methyl-1-propanesulfonic acid, 4,4,-ditrifluoromethyl-4-hydroxybutan-2-yl methacrylate, 5-methacryloyloxy-2,6-norbornanecarbo-gamma-lactone); poly(2-acrylamido-2-methyl-1-propanesulfonic acid, 4,4,-ditrifluoromethyl-4-hydroxybutan-2-yl methacrylate, hydroxymethyladamantylmethacrylate); poly(2-acrylamido-2-methyl-1-propanesulfonic acid, 4,4,-ditrifluoromethyl-4-hydroxybutan-2-yl methacrylate, lauryl methacrylate); poly(2-acrylamido-2-methyl-1-propanesulfonic acid, 4,4,-ditrifluoromethyl-4-hydroxybutan-2-yl methacrylate, isobornyl methacrylate); poly(2-acrylamido-2-methyl-1-propanesulfonic acid, 4,4,-ditrifluoromethyl-4-hydroxybutan-2-yl methacrylate, 3-bicyclo[3,3,0]octane methacrylate); poly[(2-acrylamido-2-methyl-1-propanesulfonic acid, 4,4,-ditrifluoromethyl-4-hydroxybutan-2-yl methacrylate, methacyloxypropyltris(trimethylsiloxy)silane]; and poly(2-sulfoethylmethacrylate, 4,4,-ditrifluoromethyl-4-hydroxybutan-2-yl methacrylate, 4,4,5,5,6,6,7,7,8,8,9,9,10,10,11,11,11-heptadecafluoro-2-hydroxyundecyl acrylate); pattern-wise exposing the photoresist layer and the top antireflective and barrier layer to an imaging radiation; removing the top antireflective and barrier layer and the exposed portions of the photoresist layer to form a patterned photoresist layer on the material layer; and transferring the pattern in the photoresist layer to the material layer.