Patent ID: 6451498
Filing Date: 2002-09-17
Classification: G03F,Y10S

Abstract:
A photosensitive composition, which can be converted by exposure in developing solutions from an insoluble to a soluble state, containingIâ€”at least one photo acid generator and IIâ€”polymers which are formed from the following fractions of monomers, relative to the polymer: A-monomers selected from the group consisting of acrylic acid and methacrylic acid with a fraction of 8% by mol to 20% by mol, B-monomers selected from the group consisting of tert-butylacrylate and tert-butylmethacrylate with a fraction of 19% by mol to 70% by mol, and C-monomers selected from the group consisting of hydroxyethylmethacrylate, hydroxypropylmethacrylate, hydroxyphenylmethacrylate, hydroxyethylacrylate, hydroxypropylacrylate and hydroxyphenylacrylate with a fraction of 1% by mol to 30% by mol, D-additional monomers selected from the group consisting of methylacrylate and methylmethacrylate with a fraction of 10% by mol to 60% by mol, E-additional monomers selected from the group consisting of compounds with the general formula CH2&boxH;CR1â€”COOR2, where R1 is a hydrogen atom or a methyl group and R2 is a linear or branched alkyl group with at least three carbon atoms, with a fraction of 3% by mol to 35% by mol.