Patent ID: 8476465

Claim:
A precursor for depositing a high-k film comprising: a compound having the formula: M 1 (OR) 4 L wherein M 1 is selected from the group consisting of Ta and Nb, R is an alkyl group, and L has the formula —NR 0 —(CR 1 R 2 ) n —N—(R 3 )(R 4 ) wherein R 0 is a hydrogen atom, or an alkyl group having 1 to 4 carbon atoms, R 1 and R 2 may each independently be a hydrogen atom, a methyl group, or an ethyl group, n is an integer ranging from 0 to 3, R 3 is a hydrogen atom, or an alkyl group having from 1 to 4 carbon atoms, and R 4 is a hydrogen atom, or an alkyl group having 1 to 4 carbon atoms and wherein R 0-4 may be the same or different from one another.