METHOD OF MANUFACTURING SINGLE CRYSTAL SILICON BY ARC HEATER

摘要

A method for the production of single crystal silicon characterized by the steps of feeding into an arc heater a quantity of uncontaminated silicon halide to react with hydrogen or a metal reductant, such as sodium, to produce reaction products including liquid silicon and a gaseous salt of the reductant, depositing the liquid silicon on a downwardly inclined surface, and attaching a single seed crystal of silicon to the liquid silicon and withdrawing the single seed crystal from the liquid silicon so as to propagate a large single crystal.