Patent ID: 7001707

Claim:
A resist composition comprising a polymer comprising recurring units of the general formula (1) and a polymer comprising recurring units of the general formula (2): wherein R 1 and R 2 each are hydrogen or an acid labile group, letters a and b are numbers satisfying 0≦a≦1, 0≦b≦1 and 0.3≦a+b≦1, R 3 is an acid labile group, R 4 and R 5 are each independently hydrogen, an alkyl group of 1 to 4 carbon atoms which may be substituted with a fluorine atom, cyano group or hydroxy group, or an acid labile group, R 6 is hydrogen, an alkyl group of 1 to 4 carbon atoms which may be substituted with a fluorine atom, cyano group or hydroxy group, or an acid labile group, X 1 is a single bond, methylene group or ethylene group, letters c, d, e and f are numbers satisfying 0≦c<0.8, 0<d<0.8, 0<c+d<0.8, 0≦e<0.8, 0≦f<0.8, 0<e+f<0.8, and 0.5≦c+d+e+f≦1.