Czochalski Flow
In this movie Dr.-Ing. Hans J. Scheel talks about the simulation of Czochralski flows with 4
visualization methods, Taylor vortices discovered, and invented
Co-Rotating Ring Czochralski (CRCZ) technology.
HJS (bottom right) with 3 coworkers — Prof. Sielawa — Prof. Müller-Krumbhaar
CRCZ Patent
CRCZ-Principle
References
H. J. Scheel and H. Müller-Krumbhaar : “Crystal Pulling Using ACRT”, J. Crystal Growth
49 (1980) No. 2, p. 291-296.
P. H. O. Rappl, L. F. Matteo Ferraz, M.R.X. Barros, D. Schiel, and H. J. Scheel: “Hydrodynamic
Simulation of Forced Convection in Czochralski Melts”, J. Crystal Growth 70 (1984) p.
49-55.
H. J. Scheel and J.T. Sielawa: “Optimum Convection Conditions for Czochralski Growth of
Semiconductors”, (International Symposium on High-Purity Materials, Dresden GDR May 6-10, 1985) ;
Proceedings p. 232-244.
H. J. Scheel in “Crystal Growth Technology”, editors H. J. Scheel and T. Fukuda, Wiley and
Sons, Chichester UK, 2003 hardcover, 2004 paperback:Ch. 4: Theoretical and Experimental Solutions of the Striation Problem (p.69-91)