Patent ID: 6696216
Filing Date: 2004-02-24
Classification: C07C,C07D,G03F,Y10S

Abstract:
A chemically amplified resist composition comprising:(a) at least one chemically amplified base polymer comprising a fluorine-containing polymer or a silicon-containing polymer; (b) at least one photo acid generator, wherein said at least one photo acid generator is a thiophene-containing compound having the following formula: wherein at least one of R1, R2 or R3 is thiophene or thiophene that is substituted with alkyl, alkoxy, or cycloalkyl, and the remaining R1, R2 or R3, not containing a thiophene moiety, are independently selected from the group consisting of alkyl, cycloalkyl and aryl, or at least one of R1, R2 or R3 are joined together to form a cyclic moiety having from about 4 to about 8 ring carbon atoms: and Y is a counter ion; and(c) a solvent for dissolving said at least one chemically amplified base polymer.