Patent ID: 7405029

Claim:
An antireflective hardmask composition, comprising: (a) a polymer component comprising at least one polymer comprising a monomeric unit of Formula (I) wherein R 1 and R 2 are each independently selected from the group consisting of hydrogen, hydroxyl, C 1-10 alkyl, C 6-10 aryl, allyl, and halo; R 3 and R 4 are each independently selected from the group consisting of hydrogen, a crosslinking functionality, and a chromophore; R 5 and R 6 are each independently selected from the group consisting of hydrogen and an alkoxysiloxane having the structure of Formula (II), wherein for at least one of the monomeric units of Formula (I), at least one of R 5 and R 6 is the alkoxysilane of formula (II); wherein R 8 , R 9 , and R 10 are each independently selected from the group consisting of hydrogen, alkyl, and aryl; and x is 0 or a positive integer; R 7 is selected from the group consisting of hydrogen, C 1-10 alkyl, C 6-10 aryl, and allyl; and n is a positive integer; (b) a crosslinking component; and (c) an acid catalyst.