A model relating the diameter variation with the process parameters during a practical crystal growth by pulling has been proposed. The crystal shape evolution under various growth process was analysed. The results prove, in theory, that the most effective and convenient measure to control the crystal diameter is adjusting the pulling rate, and the optimal process for growing a equal diameter crystal is simultaneously decreasing the pulling rate and the heater temperature with dropped decreasing rate. Moreover, the model could be used for designing the process for growing a crystal with a desired shape.
Comments: 18 pages and 8 figures.
[v1] 1 Sep 2011
Unique-IP document downloads: 483 times
Add your own feedback and questions here:
You are equally welcome to be positive or negative about any paper but please be polite. If you are being critical you must mention at least one specific error, otherwise your comment will be deleted as unhelpful.