Importance

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Abstract

Provided herewith is a chamber for depositing a film on a substrate comprising a process compartment; a purge compartment, a purge ring located on the chamber body to separate the two compartments, a heater, and a shadow ring covering the periphery of the substrate. Alternatively, the chamber may further comprise a shield interconnected with the shadow ring. Still provided is a method for depositing a film of uniformity on a substrate in such a chamber. The method comprises the steps of positioning the substrate in a process compartment; flowing a process gas into the process compartment; flowing a purge gas in a purge compartment; and exhausting the process and purge gas from the chamber, thereby depositing a film of uniformity on the substrate.

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First Claim