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Liquid injection plasma deposition method and apparatus

United States Patent

5,906,757
May 25, 1999
View the Complete Patent at the US Patent & Trademark Office
Idaho National Laboratory - Visit the Technology Transfer and Commercialization Office Website
A liquid injection plasma torch deposition apparatus for depositing material onto a surface of a substrate may comprise a plasma torch for producing a jet of plasma from an outlet nozzle. A plasma confinement tube having an inlet end and an outlet end and a central bore therethrough is aligned with the outlet nozzle of the plasma torch so that the plasma jet is directed into the inlet end of the plasma confinement tube and emerges from the outlet end of the plasma confinement tube. The plasma confinement tube also includes an injection port transverse to the central bore. A liquid injection device connected to the injection port of the plasma confinement tube injects a liquid reactant mixture containing the material to be deposited onto the surface of the substrate through the injection port and into the central bore of the plasma confinement tube.
Kong; Peter C. (Idaho Falls, ID), Watkins; Arthur D. (Idaho Falls, ID)
Lockheed Martin Idaho Technologies Company (Idaho Falls, ID)
08/ 533,886
September 26, 1995
CONTRACTUAL ORIGIN OF THE INVENTION The United States Government has rights in this invention disclosed under Contract Number DE-AC07-76ID01570 between the U.S. Department of Energy and EG&G Idaho, Inc., now Contract Number DE-AC07-94ID13223 with Lockheed Idaho Technologies Company.