Patent ID: 6777162
Filing Date: 2004-08-17
Classification: G03F,Y10S

Abstract:
A photosensitive polymer comprising:about 10 to about 90 mol % of an alkyl vinyl ether monomer having the formula; and about 10 to about 90 mol % of at least one monomer selected from the group consisting of an acrylate derivative, a methacrylate derivative, a fumarate derivative and a 4-hydroxy styrene derivative, each having an acid-labile hydrocarbon having from about 4 to about 20 carbon atoms, or selected from the group consisting of an acrylonitrilie derivative and a norbornene derivative, each having an acid-labile substituent group having from about 4 to about 20 carbon atoms, and the photosensitive polymer has a weight average molecular weight of about 3,000 to about 50,000: where x is an integer from 3 to 6 inclusive, R1 and R2 are independently at least one of alkyl having from 1 to about 20 carbon atoms, fluorinated alkyl having from 1 to about 10 carbon atoms, and perfluoronated alkyl having from 1 to about 10 carbon atoms.