Patent ID: 7829638

Claim:
An antireflective hardmask composition comprising (a) a polymer component, comprising the monomeric unit of Formula I, and further comprising the monomeric unit of Formula II and/or the monomeric unit of Formula III: wherein R 1 and R 2 are each independently selected from the group consisting of hydrogen, hydroxyl, alkyl, aryl, allyl, halo and any combination thereof; and R 3 and R 4 are each independently selected from the group consisting of hydrogen, a crosslinking functionality, a chromophore and any combination thereof; R 5 is selected from the group consisting of phenylalkylene, phenyldialkylene, hydroxyphenylalkylene and biphenyldialkylene, and m is a positive integer; wherein R 6 is selected from the group consisting of hydrogen, alkyl, aryl, allyl and any combination thereof, and n is a positive integer; and wherein R 7 is selected from the group consisting of hydrogen, alkyl, aryl, allyl and any combination thereof, and p is a positive integer; (b) a crosslinking component; and (c) an acid catalyst.