Patent ID: 9235123
Filing Date: 2016-01-12
CPC Classification: G03F

Claim Text:
1. A resist composition which generates an acid upon exposure and exhibits changed solubility in a developing solution by the action of the acid, comprising: a base material component (A) which exhibits changed solubility in a developing solution by the action of an acid, the base material component (A) containing a high-molecular weight compound (A1) having a constituent unit (a0) represented by the following general formula (a0-1): wherein R represents a hydrogen atom, an alkyl group having 1 to 5 carbon atoms, or a halogenatedalkyl group having 1 to 5 carbon atoms; Ya an acid generator component (B) which generates an acid upon exposure; and a photodegradable base (D1) which is decomposed upon exposure to lose acid diffusion controlling properties, wherein the photodegradable base (D1) is at least one compound selected from the group consisting of a compound represented by the following general formula (d1-1), a compound represented by general formula (d1-2), and a compound represented by general formula (d1-3): wherein each of R wherein a mixing ratio of the photodegradable base (D1) to the acid generator component (B) is 0.5 or more in terms of a molar ratio represented by (D1)/(B).