Patent ID: 8647812
Filing Date: 2014-02-11
Classification: G03F,Y10T

Abstract:
1. A pattern forming method comprising: (i) a step of forming a film from a chemical amplification resist composition, (ii) a step of exposing the film, and (iii) a step of developing the exposed film by using an organic solvent-containing developer, wherein the resist composition contains: (A) a resin capable of increasing the polarity to decrease the solubility for an organic solvent-containing developer by the action of an acid, (B) at least one kind of a compound capable of generating a sulfonic acid represented by the following formula (I) upon irradiation with an actinic ray or radiation, and (C) a solvent, wherein each of X each of R L represents a divalent linking group and when a plurality of L's are present, each L may be the same as or different from every other L; and m represents an integer of 0 or more, wherein the divalent linking group L is selected from the group consisting of a single bond, an alkylene group, a cycloalkylene group, and an alkenylene group.