Czochalski Flow
![sound](./images/mediaiconsound.png)
![movie](./images/mediaiconmovie.png)
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.
![coworkers-sielawa-krumbhaar](images/coworkers-sielawa-krumbhaar.jpg)
HJS (bottom right) with 3 coworkers — Prof. Sielawa — Prof. Müller-Krumbhaar
![CRCZ-Patent](images/CRCZ-Patent.jpg)
CRCZ Patent
![CRCZ-Principle](images/CRCZ-Principle.jpg)
CRCZ-Principle
References
H. J. Scheel and H. Müller-Krumbhaar : “Crystal Pulling Using ACRT”, J. Crystal Growth
49 (1980) No. 2, p. 291-296.
![download pdf](images/pdficon_small.gif)
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.