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Detection of Titanium Silicide Formation and Phase Transformation by Picosecond Ultrasonics

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Picosecond ultrasonics is employed to study the titanium silicide formation sequence for evaporated Ti films on silicon substrates annealed at temperatures between 300 and 800 °C. The measurements show significant differences in the ultrasonic echo pattern before and after the structural phases C49 and C54 are formed, thus indicating that picosecond ultrasonics is a sensitive non-destructive probe of silicide formation. The longitudinal sound velocity has been found to be (8.3 ± 0.2) × 105 cm/sec for C49 TiSi2, and about 5% lower for the C54 phase.

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References

  1. G. W. Rubloff, R. M. Tromp, and E. J. van Loenen, Appl. Phys. Lett. 48, 1600 (1986).

    Article  CAS  Google Scholar 

  2. R. Beyers, and R. Sinclair, J. Appl. Phys. 57, 5240 (1985).

    Article  CAS  Google Scholar 

  3. R. J. Nemanich, R. W. Fiordalice, and H. Jeon, IEEE J. Quant. Elect. 25, 997 (1989).

    Article  CAS  Google Scholar 

  4. H. -N. Lin, R. J. Stoner, and H. J. Maris, in IEEE 1990 Ultrasonics Symposium Proceedings, edited by B. R. McAvoy, pp. 1301–1307.

  5. H. T. Grahn, H. J. Maris, and J. Taue, IEEE J. Quant. Elect. 25, 2562 (1989).

    Article  CAS  Google Scholar 

  6. F. M. d’Heurle, P. Gas, I. Engstrom, S. Nygren, M. Ostling, and C. S. Petersson, IBM Research Report RC 11151, No. 50067 (1985).

  7. S. Motakef, J. M. E. Harper, F. M. d’Heurle, T. A. Gallo, and N. Herbots, J. Appl. Phys. 70, 2660 (1991).

    Article  CAS  Google Scholar 

  8. B. A. Auld, Acoustic Fields and Waves in Solids (John Wiley, New York, 1973), vol. 1, pp. 370–371.

    Google Scholar 

  9. S. P. Murarka, Suicides for VLSI Applications (Academic, Orlando, 1983), p. 47.

    Google Scholar 

  10. G. V. Samsonov, and I. M. Vinitskii, Handbook of Refractory Compounds (Plenum, New York, 1980), p. 287. The phase of TiSi2 is not specified.

    Book  Google Scholar 

  11. P. J. J. Wessels, J. F. Jongste, G. C. A. M. Janssen, A. L. Mulder, S. Radelaar, and O. B. Loopstra, J. Appl. Phys. 63, 4979 (1988).

    Article  CAS  Google Scholar 

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Acknowledgments

We acknowledge J. Tauc for valuable discussions. We thank T. R. Kirst for technical assistance. This work was supported by the U. S. Department of Energy through Grant No. DE-FG02-86ER45267.

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Lin, H.N., Stoner, R.J., Maris, H.J. et al. Detection of Titanium Silicide Formation and Phase Transformation by Picosecond Ultrasonics. MRS Online Proceedings Library 260, 221–226 (1992). https://doi.org/10.1557/PROC-260-221

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  • DOI: https://doi.org/10.1557/PROC-260-221

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