Patent ID: 9411225
Filing Date: 2016-08-09
CPC Classification: G03F

Claim Text:
1. A photo acid generator represented by the following general formula (1b), wherein R 01 and R 02 each independently represent a linear monovalent hydrocarbon group having 1 to 20 carbon atoms or a branched or cyclic monovalent hydrocarbon group having 3 to 20 carbon atoms which may be substituted with a heteroatom, or interposed by a heteroatom; and R 01 and R 02 may be mutually bonded to form a ring together with the sulfur atom in the formula; K represents a single bond or a linear divalent hydrocarbon group having 1 to 20 carbon atoms or a branched or cyclic divalent hydrocarbon group having 3 to 20 carbon atoms which may be substituted with a heteroatom, or interposed by a heteroatom; and “n” is 0 or 1.