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Open AccessFeature PaperArticle

Quasi-Transient Calculation of Czochralski Growth of Ge Crystals Using the Software Elmer

Leibniz-Institut für Kristallzüchtung (IKZ), Max-Born-Str. 2, 12489 Berlin, Germany
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Crystals 2020, 10(1), 18; https://doi.org/10.3390/cryst10010018
Received: 11 November 2019 / Revised: 17 December 2019 / Accepted: 19 December 2019 / Published: 31 December 2019
A numerical scheme was developed to compute the thermal and stress fields of the Czochralski process in a quasi-time dependent mode. The growth velocity was computed from the geometrical changes in melt and crystal due to pulling for every stage, for which the thermal and stress fields were computed by using the open source software Elmer. The method was applied to the Czochralski growth of Ge crystals by inductive heating. From a series of growth experiments, we chose one as a reference to check the validity of the scheme with respect to this Czochralski process. A good agreement both for the shapes of the melt/crystal interface at various time steps and the change in power consumption with process time was observed. View Full-Text
Keywords: global simulation; Czochralski; germanium global simulation; Czochralski; germanium
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Miller, W.; Abrosimov, N.; Fischer, J.; Gybin, A.; Juda, U.; Kayser, S.; Janicskó-Csáthy, J. Quasi-Transient Calculation of Czochralski Growth of Ge Crystals Using the Software Elmer. Crystals 2020, 10, 18.

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