The Effect of Crucible Configuration on Joule and Pinch Effects in EMCC Process of Silicon
For the development of an economical production technology of multi-crystalline silicon, an EMCC (Electro Magnetic Continuous Casting) process using a segmented Cu cold crucible was practiced. In order to enhance significantly the heating efficiency of silicon melt keeping non-contact condition during continuous melting and casting processes, the effects of Joule heating and electromagnetic pressure in molten silicon were optimized by systematically varying crucible design and configuration. Throughout the present investigation, multi-crystalline silicon ingot was successfully produced at the casting speed of above 1.5 mm/min under a non-contact condition.
T. Chandra, K. Tsuzaki, M. Militzer , C. Ravindran
B.-H. Kim et al., "The Effect of Crucible Configuration on Joule and Pinch Effects in EMCC Process of Silicon", Materials Science Forum, Vols. 539-543, pp. 3179-3183, 2007