Patent ID: 6818148
Filing Date: 2004-11-16
Classification: G03F

Abstract:
A resist composition comprising a base polymer and a fluorochemical surfactant which functions to reduce the contact angle at the interface between the surface of the resist composition coated onto a substrate and water or an aqueous base developer as the amount of the fluorochemical surfactant increases wherein said fluorochemical surfactant is of the following formula (1):Rf-[(CH2)aO]mâ€”CH2CHR1CH2Oâ€”(CH2CHR2O)nâ€”CH2CHR1CH2â€”[O(CH2)a]m-Rfâ€²â€ƒâ€ƒ(1) wherein R1 is hydrogen, a hydroxyl group, a straight, branched or cyclic alkoxy group of 1-6 carbon atoms, or an alkylcarbonyloxy group whose alkyl moiety has 1-6 carbon atoms, R2 is hydrogen or a straight, branched or cyclic alkyl group of 1-6 carbon atoms, a is a positive integer of 0-6, m is equal to 0 or 1, and n is a positive integer of 1-40, each of Rf and Rfâ€², which may be the same or different, is a straight, branched or cyclic fluoroalkyl group having 1-12 carbon atoms, in which all groups attached to its carbon atoms are fluorine atoms or some are fluorine atoms and the remainder are hydrogen atoms.