Hostname: page-component-78c5997874-s2hrs Total loading time: 0 Render date: 2024-11-02T23:23:07.869Z Has data issue: false hasContentIssue false
  • English
  • Français

Competition Between Solid Phase Epitaxy and Random Crystallization During cw Laser Annealing of Amorphous Si Films

Published online by Cambridge University Press:  15 February 2011

J.A. Roth ,
S.A. Kokorowski ,
G.L. Olson  and
L.D. Hess
J.A. Roth
Affiliation:
Hughes Research Laboratories, 3011 Malibu Cyn. Rd., Malibu, CA 90265
S.A. Kokorowski
Affiliation:
Hughes Research Laboratories, 3011 Malibu Cyn. Rd., Malibu, CA 90265
G.L. Olson
Affiliation:
Hughes Research Laboratories, 3011 Malibu Cyn. Rd., Malibu, CA 90265
Get access

Abstract

The kinetics of amorphous-to-polycrystalline conversion and solid phase epitaxy (SPE) in UHV-deposited Si films have been determined over a wide temperature range by the use of optical reflectivity measurements made during rapid heating by a cw Ar laser. Crystallization rates measured in UHV following film deposition are reported and compared to rates measured in air in order to elucidate the effects of contaminants on the processes. The effects of boron doping on nucleation and growth kinetics are also reported. The crystallization rates determined in these studies can be used to predict the volume fraction of polycrystalline material formed during laserinduced SPE growth of thick epitaxial layers.

Type
Research Article
Information
MRS Online Proceedings Library (OPL) , Volume 4: Symposium A – Laser and Electron-Beam Interactions with Solids , 1981 , 169
Copyright
Copyright © Materials Research Society 1982

Access options

Get access to the full version of this content by using one of the access options below. (Log in options will check for institutional or personal access. Content may require purchase if you do not have access.)

References

REFERENCES

1. Blum, N.A. and Feldman, C., J. Non-Cryst. Sol. 11, 242 (1972).Google Scholar
2. Koster, U., Phys. Stat. Sol. A 48, 313 (1978).Google Scholar
3. Zellama, K., Germain, P., Squelard, S. and Bourgoin, J.C., J. Appl. Phys. 50, 6995 (1979).Google Scholar
4. Roth, J.A., Olson, G.L., Kokorowski, S.A. and Hess, L.D., in Laser and Electron-Beam Solid Interactions and Materials Processing, edited by Gibbons, J.F., Hess, L.D. and Sigmon, T.W. (Elsevier North Holland, New York, 1981), pp. 413–426.Google Scholar
5. Kokorowski, S.A., Olson, G.L. and Hess, L.D., J. Appl. Phys. (in press).Google Scholar
6. Olson, G.L., Kokorowski, S.A., McFarlane, R.A. and Hess, L.D., Appl. Phys. Lett. 37, 1019 (1980).Google Scholar
7. Olson, G.L., Kokorowski, S.A., Roth, J.A. and Hess, L.D., Laser and Electron-Beam Solid Interactions and Materials Processing, Gibbons, J.F., Hess, L.D. and Sigmon, T.W., Eds. (North Holland, New York, 1981) pp. 125–131.Google Scholar
8. Christian, J.W., The Theory of Transformations in Metals and Alloys, (Pergamon Press, Oxford, 1965).Google Scholar
9. Csepregi, L., Kennedy, E.F., Gallagher, T.J. and Mayer, J.W., J. Appl. Phys. 48, 4234 (1977).Google Scholar
10. Olson, G.L., unpublished results.Google Scholar
11. Germain, P., Squelard, S., Bourgoin, J. and Gheorghiu, A., J. Appl. Phys. 48, 1909 (1977).Google Scholar