Patent ID: 8623764

Claim:
A method for forming a metal film on a semiconductor substrate comprising: heating the semiconductor substrate to obtain a heated semiconductor substrate; exposing the heated semiconductor substrate to a composition containing at least one metal precursor comprising at least one ligand, an excess amount of neutral labile ligands, a supercritical solvent, and optionally at least one source of B, C, N, Si, P, and mixtures thereof; exposing the composition to a reducing agent and/or thermal energy at or near the heated semiconductor substrate; disassociating the at least one ligand from the metal precursor; and forming the metal film while minimizing formation of metal oxides; wherein the metal precursor comprises a transition metal selected from the group consisting of scandium, yttrium, lanthanum, actinium, titanium, rutherfordium, vanadium, niobium, tantalum, dubnium, chromium, molybdenum, tungsten, seaborgium, manganese, technitium, rhenium, holmium, iron, ruthenium, osmium, hassium, cobalt, rhodium, iridium, meitnerium, nickel, palladium, platinum, darmstadtium, silver, gold, zinc, cadmium, mercury, and mixtures thereof; and wherein the neutral labile ligands are selected from the group consisting of ethers, thioethers, acyclic dienes, arenes, aromatics, ketones, phosphines, isocyanides, isonitriles, CO, dinitrogen, and mixtures thereof.