Crystal growth dynamic temperature field adjusting device

• Main Authors: ZHANG TING, XIA WENYING, XIA YUKUN, XIA ZONGREN
• Format: Patent
• Language: Chinese; English
• Published: 12.04.2022
• Subjects: AFTER-TREATMENT OF SINGLE CRYSTALS OR A HOMOGENEOUSPOLYCRYSTALLINE MATERIAL WITH DEFINED STRUCTURE; APPARATUS THEREFOR; CHEMISTRY; CRYSTAL GROWTH; METALLURGY; PRODUCTION OF A HOMOGENEOUS POLYCRYSTALLINE MATERIAL WITHDEFINED STRUCTURE; REFINING BY ZONE-MELTING OF MATERIAL; SINGLE CRYSTALS OR HOMOGENEOUS POLYCRYSTALLINE MATERIAL WITHDEFINED STRUCTURE; SINGLE-CRYSTAL-GROWTH; UNIDIRECTIONAL SOLIDIFICATION OF EUTECTIC MATERIAL ORUNIDIRECTIONAL DEMIXING OF EUTECTOID MATERIAL

A dynamic temperature field adjusting device for crystal growth comprises a furnace body, a heating induction coil, a crucible and a seed crystal lifting rod, the top of the seed crystal lifting rod is connected with a single crystal lifting mechanism, and the dynamic temperature field adjusting device further comprises a heat preservation cover which is vertically arranged above the furnace body, the bottom of the heat preservation cover and the furnace body form a growth cavity, and a furnace hole and a through hole which are used for communicating the growth cavity to the outside are formed in the heat preservation cover; the furnace hole provides a vertical movement space for the seed crystal lifting rod; the annular reflector is arranged in the growth cavity, is coaxial with the single crystal, is positioned 3-20mm above the single crystal solution, and is used for controlling the temperature gradient of the contact surface of the single crystal and the single crystal solution; the lower end of the follo