Hydrogen Effect on SiC Single Crystal Prepared by the Physical Vapor Transport Method

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Abstract:

We investigated the effects of hydrogen addition to the growth process of SiC single crystal using sublimation physical vapor transport (PVT) techniques. Hydrogen was periodically added to an inert gas for the growth ambient during the SiC bulk growth. Grown 2”-SiC single crystals were proven to be the polytype of 6H-SiC and carrier concentration levels of about 1017/cm3 was determined from Hall measurements. As compared to the characteristics of SiC crystal grown without using hydrogen addition, the SiC crystal grown with periodically modulated hydrogen addition definitely exhibited lower carrier concentration and lower micropipe density as well as reduced growth rate.

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Materials Science Forum (Volumes 556-557)

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25-28

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September 2007

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© 2007 Trans Tech Publications Ltd. All Rights Reserved

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[1] J. C. Zolper and M. Skowronski: MRS Bulletin Vol. 30 April (2005), p.273.

Google Scholar

[2] Z. Herro, M. Bickermann, B. M. Epelbaum, P. Masri and A. Winnacker: Mater. Sci. Forum Vol. 433-436 (2003), p.67.

DOI: 10.4028/www.scientific.net/msf.433-436.67

Google Scholar

[3] Y. Kitou, W. Bahng, T. Kato, S. Nishizawa and K. Arai: Mater. Sci. Forum Vol. 389-393 (2002), p.83.

DOI: 10.4028/www.scientific.net/msf.389-393.83

Google Scholar

[4] V. Ramachandran, M. F. Brady, A. R. Smith and R. M. Feenstra: J. Electron. Mat. 27 (1998), p.308.

Google Scholar

[5] M. A. Fanton, Q. Li, A. Y. Polyakov, M. Skowronski, R. Cavalero and R. Ray: J. Cryst. Growth Vol. 287 (2006), p.339.

Google Scholar

[6] M. V. Bogdanov, A. O. Galyukov, S. Yu. Karpov, A.V. Kulik, S. K. Kochuguev, D. Kh. Ofengeim, A. V. Tsiryulnikov, M. S. Ramm, A. I. Zhmakin and Yu. N. Makarov: J. Cryst. Growth Vol. 225 (2001), p.307.

DOI: 10.1016/s0022-0248(01)00879-x

Google Scholar

[7] J. G. Kim, K. R. Ku, D. J. Kim, S. P. Kim, W. J. Lee, B. C. Shin, G. H. Lee, I. S. Kim: Mater. Sci. Forum Vols. 483-485 (2005), p.47.

Google Scholar

[8] K. R. Ku, J. G. Kim, J. D. Seo, J. Y. Lee, M. O. Kyun, W. J. Lee, G. H. Lee, I. S. Kim and B. C. Shin: Mater. Sci. Forum Vol. 527-529, (2006), p.83.

Google Scholar

[9] R. Weingartner, P. J. Wellmann, M. Bickermann, D. Hofmann and T. L. Straubinger: Appl. Phys. Lett. Vol. 80 (1) (2002), p.70 (a) (b) micropipe etch pit micropipe etch pit 100µm m 100µm.

Google Scholar