Patent ID: 8647809

Claim:
A hardmask composition comprising a metal-oxide precursor compound dispersed or dissolved in a solvent system, said precursor compound being selected from the group consisting of polymers, oligomers, monomers, and mixtures thereof, wherein: said polymers and oligomers comprise recurring monomeric units of: and said monomers have the formula: where: m is at least 1; each n is individually 1-3; a is 2-4; x denotes the monomeric repeat unit; M is a metal or metalloid other than silicon; each R 1 and R 2 is individually selected from the group consisting ofhydrogen, alkyls, aryls, alkoxys, phenoxys, and acetoxys; and each R 3 is individually selected from the group consisting of alkyls and carbonyls, said composition being substantially free of silicon.