Patent ID: 8852855

Claim:
A top anti-reflection coating composition comprising a solvent, an alkylsulfonic acid having 10 to 18 carbon atoms, and a fluorine-containing polymer having a weight average molecular weight of 300000 to 800000 and represented by the following formula (1): -A x -B y - (1) in which A is a repeating unit represented by the following formula (A): wherein R is a fluorine-containing alkylene group having 1 to 40 carbon atoms or R is a fluorine-containing alkylene group having 2 to 100 carbon atoms and an ether bond, B is a repeating unit capable of combining with A to form a copolymer, x and y are numbers indicating the polymerization ratios provided that x is not equal to 0, and A and B may randomly combine with each other or may form blocks.