Monitoring of Monocrystal Diameter in Growing Vessel

V.I. Kozik and E.S. Nejevenko (Russia)


Crystal growing, meniscus, sensor, diameter, calibration


In the report the problem of the monitoring of a monocrystal diameter during growing by Czochralski technique is investigated. The image of a meniscus, where crystallization takes place is analyzed. Informative parameters on which it is possible to estimate diameter of a crystal are determined. The algorithm of definition of a meniscus diameter at various stages of the growth, using for regulation of a crystal diameter by change of growth parameters is described. The results of operation of the sensor using developed algorithm at growing of real crystals are represented.

Important Links:

Go Back