Patent ID: 8071163

Claim:
A method for depositing a high-k film on to one or more substrates comprising: a) introducing a first metal precursor into the reaction chamber, wherein the first metal precursor comprises a compound having the formula selected from the group consisting of: M 1 (OR) 4 L 1 wherein M 1 is selected from the group consisting of Ta and Nb, R is an alkyl group, and L 1 has the formula, â€”Oâ€”(CR 1 R 2 ) n â€”Xâ€”(R 3 )(R 4 ) or â€”NR 0 â€”(CR 1 R 2 ) n â€”Xâ€”(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 and 3, X is an O or N atom, 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, a compound having the formula: M 1 (X) 5 , S(R 1 R 2 ) wherein M 1 is Ta or Nb, X is a halogen, and R 1 and R 2 may each independently be an alkyl group having 1 to 4 carbon atoms, and combinations thereof. b) introducing a second metal precursor into a reaction chamber, wherein the second metal precursor comprises hafnium or zirconium, and wherein the reaction chamber contains the one or more substrates; and c) vaporizing the first metal precursor and the second metal precursor to deposit the high-k film on to the one or more substrates.