Guided non-line of sight coating
AssigneeUnited Technologies Corporation
InventorsMichael D. Greenberg, Benjamin J. Zimmerman
Life of this patent
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Abstract
A method for applying a vapor deposition coating onto a substrate with a non line of sight or limited line of sight is disclosed. A vapor stream is provided in a chamber that is below atmospheric pressure. The vapor stream is impinged with a working gas that provides a flow that transports the vapor stream. The flow of the working gas is modified with a physical object that directs the flow to achieve a desired coating on the substrate.
Claims20
A method for applying a coating on substrate, the method comprising:
- placing the substrate into a chamber;
- impinging an evaporant source in the chamber with a beam to generate an evaporated vapor cloud in the chamber;
- and
- presenting a carrier gas stream to the chamber to disperse the evaporated vapor cloud;
- deflecting the evaporated vapor cloud being moved by the carrier gas stream, wherein the deflecting is done with at least one vapor cloud modifier that disrupts a flow of the carrier gas stream, and wherein the evaporated vapor cloud at least partially coats at the substrate.
An apparatus for applying at least one coating on a substrate, the apparatus comprising:
- a chamber, wherein the chamber has an operating pressure below atmospheric pressure, wherein the substrate is present in the chamber;
- an evaporant source disposed in the chamber;
- a beam generator for producing a beam that impinges the evaporant source to generate an evaporated vapor cloud in the chamber;
- a carrier gas stream source for introducing a carrier gas into the chamber that transports the evaporated vapor cloud to coat the substrate;
- and
- a physical flow disrupting object that modifies a flow of the carrier gas to direct the deposition of the evaporated vapor cloud in a desired pattern on the substrate.
The apparatus of 8 wherein the physical flow disrupting object enhances the evaporated vapor cloud in coating an area of the substrate.
A method for applying vapor deposition onto a substrate with a non line of sight or limited line of sight comprising:
- providing a vapor stream in a chamber, wherein the chamber is below atmospheric pressure;
- impinging the vapor stream with a working gas that provides a flow that transports the vapor stream;
- modifying a flow of the working gas with a physical object that directs the flow to achieve a desired coating on the substrate.
Dependencies are inferred from the claim text.