Kinetic aspects of solid-phase epitaxial growth of amorphous Si

Z. L Liau, S. S. Lau, M. A. Nicolet, J. W. Mayer, R. J. Blattner, Peter Williams, C. A. Evans

Research output: Contribution to journalArticle

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Abstract

We have studied solid-phase transport phenomena in the thin-film system which consists of a Pd2Si layer sandwiched between an underlying Si single crystal substrate and a top layer of amorphous Si. After a 475°C annealing, the Pd-silicide layer moves toward the surface on the sample as the single crystal substrate grows with a corresponding consumption of the amorphous Si layer. Using MeV 4He+ backscattering spectrometry, we find that the time dependence of the transport process has rather different rates for samples prepared at different times, varying by up to three orders of magnitude. By monitoring the rate under various modified experimental conditions, we have established that the transport rate depends on the vacuum deposition of the amorphous Si layer during sample preparations. Specifically, the rate was found to correlate with the carbon contamination (≲3 at.%) which was detected in the amorphous Si layers by Auger electron spectroscopy (AES) and secondary ion mass spectroscopy (SIMS). Relatively "carbon-free" depositions were carried out and unique features were indeed observed on these samples.

Original languageEnglish (US)
Pages (from-to)623-627
Number of pages5
JournalNuclear Instruments and Methods
Volume149
Issue number1-3
DOIs
StatePublished - 1978
Externally publishedYes

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Epitaxial growth
Spectrum Analysis
Carbon
Secondary Ion Mass Spectrometry
Kinetics
Growth
Vacuum
Single crystals
Electrons
Vacuum deposition
Substrates
Auger electron spectroscopy
Backscattering
Spectrometry
Contamination
Spectroscopy
Annealing
Thin films
Monitoring
Ions

ASJC Scopus subject areas

  • Engineering(all)

Cite this

L Liau, Z., Lau, S. S., Nicolet, M. A., Mayer, J. W., Blattner, R. J., Williams, P., & Evans, C. A. (1978). Kinetic aspects of solid-phase epitaxial growth of amorphous Si. Nuclear Instruments and Methods, 149(1-3), 623-627. https://doi.org/10.1016/0029-554X(78)90940-0

Kinetic aspects of solid-phase epitaxial growth of amorphous Si. / L Liau, Z.; Lau, S. S.; Nicolet, M. A.; Mayer, J. W.; Blattner, R. J.; Williams, Peter; Evans, C. A.

In: Nuclear Instruments and Methods, Vol. 149, No. 1-3, 1978, p. 623-627.

Research output: Contribution to journalArticle

L Liau, Z, Lau, SS, Nicolet, MA, Mayer, JW, Blattner, RJ, Williams, P & Evans, CA 1978, 'Kinetic aspects of solid-phase epitaxial growth of amorphous Si', Nuclear Instruments and Methods, vol. 149, no. 1-3, pp. 623-627. https://doi.org/10.1016/0029-554X(78)90940-0
L Liau, Z. ; Lau, S. S. ; Nicolet, M. A. ; Mayer, J. W. ; Blattner, R. J. ; Williams, Peter ; Evans, C. A. / Kinetic aspects of solid-phase epitaxial growth of amorphous Si. In: Nuclear Instruments and Methods. 1978 ; Vol. 149, No. 1-3. pp. 623-627.
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