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A new thin film Growth/Regrowth Process Design and Experimental Comparisons with Molecular Dynamic Analyses

Published online by Cambridge University Press:  28 February 2011

Takako K. Okada
Affiliation:
ULSI Research Center, Toshiba Corporation, Kawasaki, 210, Japan
Shigeru Kambayashi
Affiliation:
ULSI Research Center, Toshiba Corporation, Kawasaki, 210, Japan
Moto Yabuki
Affiliation:
ULSI Research Center, Toshiba Corporation, Kawasaki, 210, Japan
Yoshitaka Tsunashima
Affiliation:
ULSI Research Center, Toshiba Corporation, Kawasaki, 210, Japan
Yuichi Mirata
Affiliation:
integrated Circuit Advanced Process Engineering Department, Toshiba Corporation
Shinji Onga
Affiliation:
ULSI Research Center, Toshiba Corporation, Kawasaki, 210, Japan
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Abstract

A new concept of thin film growth/regrowth process design taking atomic motions into account using molecular dynamics is proposed. In the system, a modified many-body Tersoff-type interatomic potential for silicon has been adopted. The mathematical derivation of higher order derivatives was rigorously treated. Among many applications, the solid phase growth process was studied. It has been found from simulation studies that the solid phase growth of crystalline silicon proceeded along the [110] direction layer by layer. Furthermore, it has been obtained that all the atoms are activated in an extremely thin amorphous silicon film. Based on simulated results, an experiment using an extremely thin amorphous silicon film was carried out. It has been found that the perfect spherical silicon crystals with a uniform size and spacing can be grown from a thin amorphous silicon film.

Type
Research Article
Copyright
Copyright © Materials Research Society 1993

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References

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