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A Technique For Rapid Thick Film Sic Epitaxial Growth

Published online by Cambridge University Press:  10 February 2011

I. Khlebnikov
Affiliation:
Department of Electrical and Computer Engineering University of South Carolina, Columbia, SC 29208
T. S. Sudarshan
Affiliation:
Department of Electrical and Computer Engineering University of South Carolina, Columbia, SC 29208
V. Madangarli
Affiliation:
Department of Electrical and Computer Engineering University of South Carolina, Columbia, SC 29208
M. A. Capano
Affiliation:
Wright Laboratory/ Materials Directorate, Wright-Patterson AFB, OH 45433–7707
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Abstract

In this paper we demonstrate the growth of thick SiC epitaxial layers (≥100 μm) of good structural quality at a high growth rate (>100 μm/hr) by controlling the vapor dynamics during conventional physical vapor transport (PVT) process. We propose that our PVT technique be used to ‘repair’ or ‘heal’ commercially available substrates dominated by micropipes, by ‘filling up’ the micropipes through crystal growth inside the micropipe. Extensive experiments performed on thick SiC epitaxial layers grown on Lely substrates indicate that the thick epitaxial layers are of single polytype of high structural quality, with a single peak X-ray rocking curve of less than 12 arcsecs FWHM.

Type
Research Article
Copyright
Copyright © Materials Research Society 1998

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References

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