Patent ID: 8111978
Filing Date: 2012-02-07
Classification: C23C,F27B,H01L

Abstract:
1. A rapid thermal processing apparatus for heating a substrate, comprising: a chamber; a support for holding the substrate in the chamber, the substrate having a first face and a second face opposite the first face; a radiant heat source directing radiant energy towards the first face of the substrate and configured to be quickly turned on and off to controllably heat the substrate with a desired spatial temperature distribution, including a uniform distribution; at least one pyrometer for measuring the intensity of radiation over a predetermined wavelength range, the pyrometer being positioned to receive radiation emitted by the substrate; and a plate facing the second face of the substrate, the plate including at least one gas channel coupled to at least one gas source and to a plurality of openings on a surface of the plate configured to evenly distribute process gases over the substrate, the plate having reflective regions that reflect radiation within the predetermined wavelength range.