Patent ID: 7365115
Filing Date: 2008-04-29
Classification: G03F,H01L,Y10S

Abstract:
1. An anti-reflective coating composition which comprises a fluorine-containing polymer, an acid, an amine and an aqueous solvent capable of dissolving these components, further where the coating composition has a pH ranging from about 1.0 to about 6.0, and further where the fluorine-containing polymer is a polymer comprising a polymer unit represented by the following general formula (I), wherein R f represents a straight or branched perfluoroalkyl group which may contain an etheric oxygen atom, further wherein the acid is at least one member selected from the group consisting of sulfuric acid, hydrochloric acid, nitric acid, phosphoric acid, hydrofluoric acid, hydrobromic acid, alkylsulfonic acid, alkylbenzenesulfonic acid, alkylcarboxylic acid, alkylbenzenecarboxylic acid, and those obtained by replacing all or part of the hydrogen atoms of the aforesaid alkyl group by fluorine atoms, and further where alkyl of the acid is 1 to 20 carbon atoms and the acid is in the amount of 0.1% by total weight to 2.0% by total weight.