Patent ID: 9222199
Filing Date: 2015-12-29
Classification: C30B,Y10S,Y10T

Abstract:
1. A crystal manufacturing method, comprising: holding a mixed molten liquid that includes an alkali metal and a group III metal in a crucible; accommodating the crucible in a reaction vessel, and providing the reaction vessel with a lid for sealing the reaction vessel; using the lid to seal the reaction vessel, and supplying nitrogen gas into the reaction vessel, such that the nitrogen gas is supplied to the mixed molten liquid while the crucible and the nitrogen gas are sealed within the reaction vessel; positioning a heating device at a predetermined location relative to the reaction vessel and heating the crucible through the reaction vessel; and accommodating the reaction vessel in a sealed vessel, and supplying source materials into the crucible, and taking out a manufactured group III nitride crystal from the crucible, wherein the supplying the source materials and the taking out the manufactured group III nitride crystal are performed in the sealed vessel without exposing the crucible in the sealed vessel to outside air.