Reactive cover glass on molten silicon in the course of directional solidification

摘要

method comprises the steps of forming a molten silicon (206) in a crucible (202), the molten silicon ( forming a silicon (208) which solidified on top of 206), the step of contacting the solidified silicon and the (208) Glass (210) and, the solidified silicon (208) and glass (210), coagulated and silicon and glass is sufficiently heated to melt, the process providing a molten glass (212), and the melt toward the top of the melt from the bottom of the melt by directional solidification on the molten silicon (206), comprising the step of providing further high purity solid silicon (214).