Patent ID: 7005392

Claim:
A liquid CVD precursor composition for forming a thin film dielectric on a substrate, such precursor composition including at least one metalloamide source reagent compound having a formula: M(NR 2 ) x (NR′ 2 ) y wherein M is selected from the group consisting of: Y, Hf, La, and Ta; N is nitrogen, each of R and R′ is independently selected from the group consisting of H, aryl, perfluoroaryl, C 1 –C 8 alkyl, C 1 –C 8 perfluoroalkyl, and alkylsilyl; (NR 2 ) x and (NR′ 2 ) y are different amino ligands and R′ is different from R; x is from 1 to 5; y is from 1 to 5; and x+y is equal to the oxidation state of metal M, and a solvent medium, wherein the metalloamide source reagent compound is soluble or suspendable therein.