Patent ID: 8043788
Filing Date: 2011-10-25
Classification: G03F,Y10S

Abstract:
1. A resist composition comprising a polymer which changes its alkali solubility under the action of an acid as a base resin, a copolymer comprising recurring units containing an amino group and recurring units containing at least one fluorine atom as an additive, wherein said copolymer has the general formula (1): in which R X n is 1 or 2, in case of n=1, Y in case of n=2, Y R R R the subscripts are numbers in the range: 0<a<1.0, 0≦(b-1)<1.0, 0≦(b-2)<1.0, 0<(b-1)+(b-2)<1.0, and 0.5≦a+(b-1)+(b-2)≦1.0, and a compound capable of generating an acid in response to actinic light or radiation.