Coating apparatus – Gas or vapor deposition – Multizone chamber
Patent
1987-12-04
1989-05-30
Lawrence, Evan
Coating apparatus
Gas or vapor deposition
Multizone chamber
118715, 118725, 118729, C23C 1646, C23C 1654
Patent
active
048340200
ABSTRACT:
A conveyorized atmospheric pressure chemical vapor deposition apparatus having a heated muffle and a conveyor belt for conveying objects to be coated through said muffle. At least one chemical vapor deposition zone is provided in the muffle. An injector assembly is also provided for uniformly injecting first and second reactant gases in the deposition zone across the width of the conveyor belt and against the surfaces of the objects to be coated. The gases exit from slots connected to distribution plenums. Polished cooled surfaces are used on the injector assembly to minimize deposition of chemicals thereon.
REFERENCES:
patent: 4131659 (1978-12-01), Autnier et al.
Bartholomew Lawrence D.
Gralenski Nicholas M.
Hersh Michael L.
Richie Michael A.
Lawrence Evan
Watkins-Johnson Company
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