Patent ID: 7485339
Filing Date: 2009-02-03
Classification: B82Y,C23C

Abstract:
1. A method for chemical vapor deposition (CVD) in a reaction chamber, a susceptor being located inside the reaction chamber, on which a substrate is placed and a film deposition is made as a result of chemical reactions with supplied source materials, the method comprising: establishing a reactive gas confiner for surrounding the susceptor in the reaction chamber, the reactive gas confiner comprising a wall having a plurality of openings perforated for communication of inside with outside of the reactive gas confiner, wherein the wall of the reactive gas confiner is separated from the reaction chamber at a distance; injecting a purge gas, which does not either dissolve or generate byproducts by itself, into an outside of the reactive gas confiner; and supplying a source material of vapor phase participating directly in forming a film to an inside of the reactive gas confiner, a protective curtain between the source material and the purge gas being formed in the reactive gas confiner.