Patent ID: 7419760
Filing Date: 2008-09-02
Classification: G03F,Y10S

Abstract:
1. A top anti-reflective coating composition, comprising: a top anti-reflective coating polymer selected from the group consisting of: poly(t-butylacrylate-acrylic acid-3-hydroxypropylmethacrylate) of Formula 5 below: poly(t-butylacrylate-acrylic acid-N-isopropylacrylamide) of Formula 6 below: poly(t-butylacrylate-acrylic acid-2-hydroxyethylmethacrylate) of Formula 7 below: wherein a, b and c, representing the mole fraction of each monomer, are in the range between 0.05 and 0.9; a bissulfone compound, as a photoacid generator, represented by Formula 1 below: wherein R an organic solvent.