Patent ID: 9152050
Filing Date: 2015-10-06
Classification: G03F

Abstract:
1. A resist composition comprising: 100 parts by weights of a polymer serving as a base resin capable of increasing alkali solubility under the action of acid and comprising recurring units of at least one type selected from recurring units (a1) and (a2) having a carboxyl and/or phenolic hydroxyl group substituted with an acid labile group, as represented by the general formula (3), and recurring units having a phenolic hydroxyl group and/or lactone ring as an adhesive group and having a weight average molecular weight of 1,000 to 500,000, wherein R 0.1 to 20 parts by weight of a polymer, as a polymeric additive, comprising recurring units derived from a styrene having 1,1,1,3,3,3-hexafluoro-2-propanol and recurring units (q2) derived from a monomer selected from a vinylnaphthalene, represented by the general formula (2): wherein R