Patent ID: 6139922
Filing Date: 2000-10-31
Classification: C23C,H01L

Abstract:
A method for the chemical vapor deposition of a film comprising tantalum onto a substrate, comprising(a) introducing into a deposition chamber:(i) a substrate;(ii) a single source precursor comprising fluorine in a vapor state and having formula (I):Ta(F.sub.5-q-p)(X.sub.q-p)(R.sub.p) (I)wherein X is selected from the group consisting of bromine, iodine, chlorine, and combinations thereof; q is an integer from 0 to 4; p is an integer from 0 to 4; and R is selected from the group consisting of hydrogen and lower alkyl; and(iii) a reactant gas; and(b) maintaining a temperature of said substrate within said chamber of from about 70.degree. C. to about 675.degree. C. for a period of time sufficient to react said single source precursor with said reactant gas and to deposit a film comprising tantalum on said substrate.