HEATING APPARATUS FOR SAPPHIRE GROWTH FURNACE

摘要

PURPOSE: A heating apparatus for a sapphire growth furnace is provided to control respectively temperature according to the zones of a heat source, to decrease the flow speed of fused alumina in a growth furnace, and to prevent the generation of voids. CONSTITUTION: Fused alumina(1) is placed in the inner space(11) of a growth furnace(10). A heating source(20) surrounds the growth furnace and supplies heat to the growth furnace. The growth furnace is classified into multiple zones to supply heat. An insulating material(50) surrounds the outside of the heating source in order to maintain the temperature of the growth furnace. A load(60) is inserted from the outside to touch the fused alumina of the growth furnace.