Robust filament assembly for a hot-wire chemical vapor...

Coating processes – Coating by vapor – gas – or smoke – Carbon or carbide coating

Reexamination Certificate

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C118S718000

Reexamination Certificate

active

07727590

ABSTRACT:
A hot wire chemical vapor deposition apparatus comprises a vacuum chamber, a substrate support member located in the vacuum chamber, a filament assembly support member located in the vacuum chamber, a precursor gas inlet located in the vacuum chamber and a device for providing a clean portion of at least one filament inside the vacuum chamber without breaking vacuum.

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