Paper Title:
Enhanced Oxygen Precipitation during the Czochralski Crystal Growth
  Abstract

An unusual pattern of the Oxidation Induced Stacking Faults (OISF) in the heavily boron-doped silicon is reported. Instead of the commonly reported simple OISF ring, we observe a banded OISF pattern. The pattern reflects the distribution of residual vacancies as it is described by Voronkov and Falster [J. Crystal Growth 204 (1999) 462]. We show that the oxygen precipitates in the L- and H- bands grow to an abnormally large size during the crystal growth and which serve as the OISF nuclei during subsequent wafer oxidation. It is concluded that a combination of the high boron, oxygen and vacancy concentration is responsible for the enhanced oxygen precipitation during the crystal growth.

  Info
Periodical
Solid State Phenomena (Volumes 131-133)
Edited by
A. Cavallini, H. Richter, M. Kittler and S. Pizzini
Pages
167-174
DOI
10.4028/www.scientific.net/SSP.131-133.167
Citation
L. Válek, J. Šik, D. Lysáček, "Enhanced Oxygen Precipitation during the Czochralski Crystal Growth", Solid State Phenomena, Vols. 131-133, pp. 167-174, 2008
Online since
October 2007
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$32.00
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