INGOT HAVING SINGLE CRYSTAL, APPARATUS AND METHOD FOR MANUFACTURING THE INGOT

摘要

An apparatus for manufacturing a single crystal ingot, according to an embodiment, includes a crucible for accommodating a molten solution; a heater for heating the crucible; and a neck cover for surrounding a vertical crystal from the top of the crucible. The neck cover includes at least one internal wall layer and at least one external wall layer arranged on top of the at least one internal wall layer and blocking the penetration of heat discharged from inside the neck cover.