Abstract
It is shown, that under thermal “stiffness” conditions, the dimensions of a crystal grown by the Czochralski method may be programmed by a cooling plot. The cooling plot is calculated from the measured longitudinal and radial thermal gradients, involving also the melt-to-solid densities ratio. Utilization of the principle could save the need for sophisticated expensive automatic diameter control systems. In the present work the principle was successfully applied to the growing of InSb single crystals of diameters around 2cm.
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