DEVICE FOR PRODUCING SINGLE CRYSTAL OF SILICON CARBIDE

A device (1) for producing a single crystal of silicon carbide which comprises a reaction vessel (10) constituted of graphite and configured so that the upper opening (11b) of a cylindrical reaction vessel main body (11) has been blocked with a lid (12), and a heating member comprising a single heat...

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Main Authors KONDO, DAISUKE, SEKI, WATARU
Format Patent
LanguageEnglish
French
Japanese
Published 07.10.2010
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Abstract A device (1) for producing a single crystal of silicon carbide which comprises a reaction vessel (10) constituted of graphite and configured so that the upper opening (11b) of a cylindrical reaction vessel main body (11) has been blocked with a lid (12), and a heating member comprising a single heating coil continuously wound around the outer periphery of the reaction vessel (10) constituted of graphite and in which a sublimable starting material (50) is held on the bottom (11a) and a seed crystal (60) is attached to the inner surface (12a) of the reaction vessel. The lower coil (31), which has wound around the bottom (11a) of the reaction vessel main body (11), and the upper coil (32), which has wound around the lid (12), have coil pitches (P1 and P3) that have been set so as to be smaller than the coil pitch (P2) of the central coil (33), which has wound around the height-direction center of the reaction vessel main body (11). La présente invention se rapporte à un dispositif (1) permettant de fabriquer un monocristal de carbure de silicium qui comprend un récipient de réaction (10) constitué de graphite et configuré de telle sorte que l'ouverture supérieure (11b) d'un corps principal de récipient de réaction cylindrique (11) a été fermée avec un couvercle (12), et un élément chauffant comprenant une seule bobine chauffante enroulée en continu autour de la périphérie externe du récipient de réaction (10) constitué de graphite et dans lequel un matériau de départ sublimable (50) est maintenu sur la partie inférieure (11a) et un germe cristallin (60) est fixé à la surface interne (12a) du vaisseau de réaction. La bobine inférieure (31), qui est enroulée autour de la partie inférieure (11a) du corps principal de récipient de réaction (11), et la bobine supérieure (32), qui est enroulée autour du couvercle (12), ont des pas de bobine (P1 et P3) qui ont été déterminés de sorte à être plus petits que le pas de bobine (P2) de la bobine centrale (33) qui est enroulée autour du centre dans le sens de la hauteur du corps principal de récipient de réaction (11).
AbstractList A device (1) for producing a single crystal of silicon carbide which comprises a reaction vessel (10) constituted of graphite and configured so that the upper opening (11b) of a cylindrical reaction vessel main body (11) has been blocked with a lid (12), and a heating member comprising a single heating coil continuously wound around the outer periphery of the reaction vessel (10) constituted of graphite and in which a sublimable starting material (50) is held on the bottom (11a) and a seed crystal (60) is attached to the inner surface (12a) of the reaction vessel. The lower coil (31), which has wound around the bottom (11a) of the reaction vessel main body (11), and the upper coil (32), which has wound around the lid (12), have coil pitches (P1 and P3) that have been set so as to be smaller than the coil pitch (P2) of the central coil (33), which has wound around the height-direction center of the reaction vessel main body (11). La présente invention se rapporte à un dispositif (1) permettant de fabriquer un monocristal de carbure de silicium qui comprend un récipient de réaction (10) constitué de graphite et configuré de telle sorte que l'ouverture supérieure (11b) d'un corps principal de récipient de réaction cylindrique (11) a été fermée avec un couvercle (12), et un élément chauffant comprenant une seule bobine chauffante enroulée en continu autour de la périphérie externe du récipient de réaction (10) constitué de graphite et dans lequel un matériau de départ sublimable (50) est maintenu sur la partie inférieure (11a) et un germe cristallin (60) est fixé à la surface interne (12a) du vaisseau de réaction. La bobine inférieure (31), qui est enroulée autour de la partie inférieure (11a) du corps principal de récipient de réaction (11), et la bobine supérieure (32), qui est enroulée autour du couvercle (12), ont des pas de bobine (P1 et P3) qui ont été déterminés de sorte à être plus petits que le pas de bobine (P2) de la bobine centrale (33) qui est enroulée autour du centre dans le sens de la hauteur du corps principal de récipient de réaction (11).
Author KONDO, DAISUKE
SEKI, WATARU
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DocumentTitleAlternate DISPOSITIF DE FABRICATION D'UN MONOCRISTAL DE CARBURE DE SILICIUM
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SEKI, WATARU
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Snippet A device (1) for producing a single crystal of silicon carbide which comprises a reaction vessel (10) constituted of graphite and configured so that the upper...
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SubjectTerms 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
Title DEVICE FOR PRODUCING SINGLE CRYSTAL OF SILICON CARBIDE
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