CHARGING DEVICE, METHOD FOR SUPPLYING BULK SILICON FEEDSTOCK, SILICON SINGLE CRYSTAL MANUFACTURING DEVICE, AND METHOD FOR MANUFACTURING SILICON SINGLE CRYSTAL

摘要

The purpose of the present invention is to provide a feedstock charging device in which damage caused to a bottom lid due to the impact of bulk silicon feedstock and the dropping of quartz pieces derived from the bottom lid into a silicon melt are prevented, and a method for supplying the bulk silicon feedstock using the same. This charging device charges the bulk silicon feedstock into a crucible storing the silicon melt. The charging device comprises a barrel into which the bulk silicon feedstock is charged, and a bottom lid that opens and closes a lower end opening of the barrel when the barrel is maintained in a vertically extended state. The bottom lid comprises quartz, and at least a portion of the upper surface of the bottom lid is covered by a metal plate.