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Prediction of High Dose Ion Implantation Profiles as Influenced by Radiation Induced Transport and Sputtering

Published online by Cambridge University Press:  25 February 2011

M. Rangaswamy
Affiliation:
Department of Materials Engineering, Virginia Polytechnic Institute and State University, Blacksburg, Virginia 24061
D. Farkas
Affiliation:
Department of Materials Engineering, Virginia Polytechnic Institute and State University, Blacksburg, Virginia 24061
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Abstract

Various models for predicting high fluence ion collection profiles are reviewed. Recent calculations based on the diffusion approximation are described. The solute and defect probability distributions are calculated by a MONTECARLO code, TRIM. The method takes into account the effects of sputtering, including preferential sputtering of one of the components, and lattice dilation. In addition, the effects of radiation enhanced diffusion and radiation induced segregation are also considered. The calculations include the coupling of solute and defect fluxes. The described formalism can account for observed maximum attainable concentrations and distributions in high fluence implantation conditions of practical interest.

Type
Research Article
Copyright
Copyright © Materials Research Society 1985

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References

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