CRYSTAL GROWTH METHODS AND SYSTEMS

• Main Authors: SCHWERDTFEGER, CARL, RICHARD, DHANARAJ, GOVINDHAN, GUPTA, KEDAR, PRASAD
• Format: Patent
• Language: English; French
• Published: 28.04.2011
• Subjects: AFTER-TREATMENT OF SINGLE CRYSTALS OR A HOMOGENEOUSPOLYCRYSTALLINE MATERIAL WITH DEFINED STRUCTURE; APPARATUS THEREFOR; CHEMISTRY; CRYSTAL GROWTH; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; 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; TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION; TECHNICAL SUBJECTS COVERED BY FORMER USPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS; UNIDIRECTIONAL SOLIDIFICATION OF EUTECTIC MATERIAL ORUNIDIRECTIONAL DEMIXING OF EUTECTOID MATERIAL

Methods and systems related to an improved controlled heat extraction system for crystal growth, such as sapphire crystal growth are described, including methods and systems for mechanical probe-based and pyrometer-based inspection and automation processes, methods and systems for avoiding fusion of components, methods and systems for purging an inspection window, and methods and systems related to alternative crucible shapes. L'invention concerne des procédés et systèmes liés à un système d'extraction de chaleur contrôlé amélioré, pour la croissance de cristal, par exemple la croissance de cristal de saphir, comprenant des procédés et systèmes pour des procédés d'inspection et d'automatisation basés sur une sonde et un pyromètre mécanique, des procédés et systèmes pour éviter la fusion des composants, des procédés et systèmes pour purger un regard d'inspection et des procédés et systèmes liés à des formes de creuset alternatives.