Patent ID: 6918960
Filing Date: 2005-07-19
Classification: C23C,H01L

Abstract:
1. A method of forming a metal-organic film on a substrate, the method comprising; introducing at least one metal-organic compound into a CVD chamber via a carrier gas; (i) introducing a first reactant gas into the CVD chamber for a first period of time wherein the first reactant gas reacts with the metal-organic compound so as to disassociate the metal component from the organic component at a first reaction energy to thereby result in the metal being deposited on the substrate at a first surface mobility to thereby form nucleation sites for the metal-organic film on the substrate; (ii) introducing a second reactant gas into the CVD chamber for a second period of time wherein the second reactant gas reacts with the metal-organic compound so as to disassociate the metal component from the organic component at a second reaction energy, greater than the first reaction energy to thereby result in the metal components being deposited at a second surface mobility to thereby result in increased agglomeration of the metal component to increase the growth rate of the metal film on the substrate; (iii) re-introducing the first reactant gas into the CVD chamber for a third period of time, wherein the first reactant gas results in deposition of the metal component into interstitial spaces formed during the increased agglomeration of the metal component on the substrate during introduction of the second reactant gas to thereby improve surface morphology of the metal film;