Method for manufacturing isolating layer onto crucible and spraying device related thereto

• Main Authors: Fan Chun-I, Chou Hung-Sheng, Yu Wen-Huai, Li Li Wei, Hsu Wen Ching, Hsu Bruce
• Format: Patent
• Language: English
• Published: 06.02.2018
• Subjects: AFTER-TREATMENT OF SINGLE CRYSTALS OR A HOMOGENEOUSPOLYCRYSTALLINE MATERIAL WITH DEFINED STRUCTURE; APPARATUS THEREFOR; APPLYING LIQUIDS OR OTHER FLUENT MATERIALS TO SURFACES, IN GENERAL; ATOMISING APPARATUS; CHEMISTRY; CRYSTAL GROWTH; METALLURGY; NOZZLES; PERFORMING OPERATIONS; PROCESSES FOR APPLYING LIQUIDS OR OTHER FLUENT MATERIALS TOSURFACES, IN GENERAL; 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; SPRAYING APPARATUS; SPRAYING OR ATOMISING IN GENERAL; TRANSPORTING; UNIDIRECTIONAL SOLIDIFICATION OF EUTECTIC MATERIAL ORUNIDIRECTIONAL DEMIXING OF EUTECTOID MATERIAL

A method for manufacturing an isolating layer onto a crucible includes the steps as follows: providing a spraying device for the following spraying steps; heating the crucible and measuring the heated crucible to get a first temperature; spraying a slurry on the inner wall of the crucible to form an isolating layer by a spraying unit with a predetermined spraying manner; measuring the isolating layer to get a second temperature; obtaining a value for the difference between the first and second temperatures and judging whether the difference value in a within predetermined difference scope or not, in which the predetermined difference scope is about 6° C.˜12° C.; when the difference value is not in the predetermined difference scope, adjusting the predetermined spraying manner; when the difference value is in the predetermined difference scope, implementing the above spraying steps to the crucible.