Importance

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Abstract

A system for processing substrates within a chamber and for cleaning accumulated material from chamber components is provided. The system includes a reactive species generator adapted to generate a reactive gas species for chemically etching accumulated material from chamber components, and a processing chamber having at least one fluoropolymer coated component which is exposed to the reactive species. Preferably to have the greatest impact on chamber cleaning efficiency, the fluoropolymer coated component(s) are large components such as a gas distribution plate or a backing plate, and/or a plurality of smaller components (e.g., a shadow frame, chamber wall liners, a susceptor, a gas conductance line) so as to constitute a large percentage of the surface area exposed to the reactive species. Most preferably all surfaces which the reactive species contacts are coated with fluoropolymer.

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First Claim