Heating unit comprised of ring heaters with ring support units disposed between the ring heaters and ingot growing device including the same

An ingot growing device for growing a single-crystalline silicon ingot, the device comprising:

• a growing chamber including an inner space;
• a growing container disposed in the inner space and configured to accommodate a silicon solution;
• a heating unit disposed to surround the growing container and configured to generate heat;
• and
• a susceptor configured to support the growing container,
• wherein the heating unit includes:
• a first ring heater having a ring shape;
• a second ring heater having a ring shape and disposed below the first ring heater;
• a first coupling part configured to couple the first ring heater with the second ring heater;
• a first ring support unit disposed between the first ring heater and the second ring heater and configured to support the first ring heater;
• a third ring heater having a ring shape and disposed below the second ring heater;
• a second coupling part configured to couple the second ring heater with the third ring heater;
• and
• a second ring support unit disposed between the second ring heater and the third ring heater, configured to support the second ring heater, and spaced apart from a lower portion of the first ring support unit by a predetermined distance,
• wherein the first ring support unit is provided in a ⊏-shape and insertion-coupled to the second ring heater,
• the first ring support unit is provided with a plurality of first ring support units,
• the plurality of first ring support units and the first coupling part are spaced apart from each other by predetermined intervals,
• the second ring support unit is provided in a ⊏-shape and insertion-coupled to the third ring heater,
• the second ring support unit is provided with a plurality of second ring support units, and the plurality of second ring support units and the second coupling part are spaced apart from each other by predetermined intervals, and
• the first ring support unit and the second ring support unit are made of a ceramic material.