Patent ID: 8039201

Claim:
An antireflective composition comprising a polymer, a thermal acid generator and optionally a crosslinking agent, where the polymer comprises at least one hydrophobic unit (1), at least one chromophore unit (2), at least one unit (3) where Y is hydroxyl, at least one unit (3) where Y is epoxy, and optionally a unit capable of crosslinking the polymer, where, R 1 to R 9 are independently selected from hydrogen and C 1 -C 4 alkyl, W 1 is a fully or partially fluorinated group, X is OH; W 2 is an organic moiety comprising a chromophore group, and W 3 is an aliphatic group, further where the antireflective composition forms a film after baking for 1 minute at 200° C. with a ΔCA % in the range from about 5% to about 25%, where ΔCA % is the percentage of (CA water −CA developer )/CA water , where CA is the contact angle, CA water is the contact angle of the film in water after baking for 1 minute at 200° C. and CA developer is the contact angle of the film in a 2.38 weight % tetramethyl ammonium hydroxide aqueous solution after baking for 1 minute at 200° C. and where the film after exposure to radiation is not developable in 2.38 weight % tetramethyl ammonium hydroxide aqueous solution.