Patent ID: 7601215
Filing Date: 2009-10-13
Classification: C30B

Abstract:
1. A method of producing epitaxial silicon films on a c-Si surface using hot wire chemical vapor deposition (HWCVD) by controlling rate of silicon deposition above temperature of dehydrogenation of the surface to obtain a phase-pure epitaxial silicon film, comprising: placing a sample with a c-Si surface within an orientation in a HWCVD reactor chamber; providing a deposition temperature above the monohydride to a silicon-free hydrogen surface transition temperature of about 570° C. to about 700° C.; and reacting a gas containing silicon on a hot filament at a sufficient rate to interact with said substrate to deposit a layer containing silicon thereon at a growth rate of about 110 nm/min to obtain a phase-pure epitaxial silicon film of increased thickness.