APPARATUS FOR PRODUCING SAPPHIRE SINGLE CRYSTAL

摘要

The present invention provides a manufacturing device for sapphire monocrystal, which can prevent crystal defect that is caused by crystal orientation offset. According to the manufacturing device (1) for the sapphire monocrystal according to the invention, seed crystal and raw material are accommodated in a crucible (20) which is supported by a supporting component (3). The crucible (20) is configured in a tubular heater (14) in a growth furnace (10). The tubular heater (14) is used for heating the crucible for melting the raw material and partial seed crystal and crystalizing. The manufacturing device for the sapphire monocrystal comprises a cooling component which is used for annularly cooling a preset peripheral position of the crucible (20) that becomes a cup shape.