期刊
THIN SOLID FILMS
卷 365, 期 2, 页码 219-230出版社
ELSEVIER SCIENCE SA
DOI: 10.1016/S0040-6090(00)00757-4
关键词
ion implantation; dopant diffusion; silicon; atomic scale model; trapping
We review our recent work on an atomistic approach to the development of predictive process simulation tools. First-principles methods, molecular dynamics simulations, and experimental results are used to construct a database of defect and dopant energetics in Si. This is used as input for kinetic Monte Carlo simulations. C and B trapping of the Si self-interstitial is shown to help explain the enormous disparity in its measured diffusivity. Excellent agreement is found between experiments and simulations of transient enhanced diffusion following 20-80 keV B implants into Si, and with those of 50 keV Si implants into complex B-doped structures. Our simulations predict novel behavior of the time evolution of the electrically active B fraction during annealing. (C) 2000 Published by Elsevier Science S.A. All rights reserved.
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