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Subsurface Growth of CoSi2 by Deposition of Co on Si-Capped CoSi2 Seed Regions

Published online by Cambridge University Press:  22 February 2011

R. W. Fathauer
Affiliation:
Center for Space Microelectronics Technology, Jet Propulsion Laboratory, California Institute of Technology, 4800 Oak Grove Dr., Pasadena. California 91109
T. George
Affiliation:
Center for Space Microelectronics Technology, Jet Propulsion Laboratory, California Institute of Technology, 4800 Oak Grove Dr., Pasadena. California 91109
W. T. Pike
Affiliation:
Center for Space Microelectronics Technology, Jet Propulsion Laboratory, California Institute of Technology, 4800 Oak Grove Dr., Pasadena. California 91109
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Abstract

At a growth temperature of 800°C, Co deposited on Si (111) diffuses through a Si cap and exhibits oriented growth on buried CoSi2 grains, a process referred to as endotaxy. This occurs preferentially to surface nucleation of CoSi2 provided the thickness of the Si cap is less tfian a critical value between 100 and 200 nm for a deposition rate of 0.01 nm/s. Steady-state endotaxy is modeled under the assumption that the process is controlled by Co diffusion.

Type
Research Article
Copyright
Copyright © Materials Research Society 1991

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References

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