REACTIVE COVER GLASS OVER MOLTEN SILICON DURING DIRECTIONAL SOLIDIFICATION

摘要

The method includes forming a molten silicon (206) in a crucible (202), forming a solidified silicon (208) at a top portion of the molten silicon (206) Heating the solidified silicon (208) and the glass (210) to a temperature sufficient to melt the solidified silicon and glass to provide a molten glass (212) over the molten silicon (206) So that the molten liquid is directionally solidified from the bottom portion of the molten liquid to the uppermost portion of the molten liquid to provide a solid silicon 214 having a higher purity.;