Patent ID: 6541179
Filing Date: 2003-04-01
Classification: G03F,Y10S

Abstract:
A resist composition comprising a base resin, a photoacid generator, and a solvent, wherein the photoacid generator is a sulfonium salt of the following general formula (1): wherein R1 is a monovalent cyclic or bridged-ring hydrocarbon group of 3 to 20 carbon atoms, R2 is hydroxyl, nitro, halogen, or a straight, branched or cyclic monovalent hydrocarbon group of 1 to 15 carbon atoms which optionally contains an oxygen, nitrogen, sulfur or halogen atom, Kâˆ’ is a non-nucleophilic counter ion, x is equal to 1 or 2, and y is an integer of 0 to 3.