Patent ID: 6010748
Filing Date: 2000-01-04
Classification: C23C

Abstract:
A method of delivery of source reagent fluid mixtures, comprising one or more precursor reagents in mixture with one or more oxidants and/or carriers, to a chemical vapor deposition locus, for chemical vapor deposition on a substrate of selected component(s) of the precursor reagent(s), said method comprising:mixing the precursor reagent(s) with said oxidants and/or carrier(s) in opposed fluid flows within a baffled showerhead discharge device by introducing at least one of said precursor reagent(s) or said oxidant(s) and/or carrier(s) against a baffle in said showerhead discharge device so as to provide an outward flow thereof toward a side wall of said showerhead discharge device and introducing at least the other of said precursor reagent(s) or said oxidant(s) and/or carrier(s) in a flow direction opposite to said outward flow to produce said opposed fluid flows and provide a source reagent fluid mixture,discharging said source reagent fluid mixture from said baffled showerhead discharge device for transport to the substrate, anddepositing said selected component(s) of the precursor reagent(s) on said substrate.