摘要:
A resist composition comprising a compound (m0) (wherein Rb1 represents an electron withdrawing group; Rb2 and Rb3 each independently represents an aryl group, an alkyl group or an alkenyl group, provided that Rb2 and Rb3 may be mutually bonded to form a ring with the sulfur atom; and X0− represents a monovalent counteranion).
摘要:
Provided is a novel sulfonium salt that has high solubility in a solvent and has high light sensitivity to, especially, light having a wavelength not longer than deep-UV (254 nm) and a novel photo-acid generator comprising the sulfonium salt. The invention relates to a sulfonium salt represented by the following general formula (1) and a novel photo-acid generator comprising the sulfonium salt. wherein R1 represents an electron withdrawing group; R2 and R3 each independently represent an alkyl group having 1 to 5 carbon atoms, an alkoxy group, an acyl group, a halogenated alkyl group, a halogen atom, a hydroxyl group, a cyano group, or a nitro group; p and q each independently represent an integer of 0 to 5; and X−represents a monovalent counter anion.
摘要:
A resist composition including: a base component (A) that exhibits changed solubility in a developing solution by the action of acid; a photoreactive quencher (C); and an acid generator component (B) that generates acid upon exposure, wherein the photoreactive quencher (C) contains a compound (C) represented by general formula (c1) shown below. In the formula, X represents a cyclic group of 3 to 30 carbon atoms which may have a substituent; R1 represents a divalent linking group; R2 represents an arylene group which may have a substituent, and each of R3 and R4 independently represents an aryl group which may have a substituent; R3 and R4 may be mutually bonded with the sulfur atom to form a ring; R5 represents a hydroxy group, a halogen atom, an alkyl group of 1 to 5 carbon atoms, an alkoxy group or a fluorinated alkyl group; p represents an integer of 0 to 2; and q represents an integer of 0 to 3.
摘要:
A resist composition which generates acid upon exposure and exhibits changed solubility in a developing solution by the action of acid, and which includes a base component which exhibits changed solubility in a developing solution by the action of acid, and a nitrogen-containing compound which has a boiling point of 50 to 200° C., a conjugate acid thereof having a pKa of 0 to 7, and a photodecomposable base; and a method of forming a resist pattern using the resist composition.