PRODUCTION OF MIXED CRYSTAL SEMICONDUCTOR SINGLE CRYSTAL

PURPOSE: To enable inexpensive production in a short time by moving a melted body from the solidification finishing side of a mixed crystal polycrystal body solidified from the one end of a synthesized raw material melt toward the solidification starting side to form a single crystal. CONSTITUTION:...

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Bibliographische Detailangaben
Hauptverfasser:	NISHIZAWA JUNICHI, SAWAFUJI YUTAKA
Format:	Patent
Sprache:	eng
Schlagworte:	AFTER-TREATMENT OF SINGLE CRYSTALS OR A HOMOGENEOUSPOLYCRYSTALLINE MATERIAL WITH DEFINED STRUCTURE APPARATUS THEREFOR BASIC ELECTRIC ELEMENTS CHEMISTRY CRYSTAL GROWTH ELECTRIC SOLID STATE DEVICES NOT OTHERWISE PROVIDED FOR ELECTRICITY METALLURGY PRODUCTION OF A HOMOGENEOUS POLYCRYSTALLINE MATERIAL WITHDEFINED STRUCTURE REFINING BY ZONE-MELTING OF MATERIAL SEMICONDUCTOR DEVICES SINGLE CRYSTALS OR HOMOGENEOUS POLYCRYSTALLINE MATERIAL WITHDEFINED STRUCTURE SINGLE-CRYSTAL-GROWTH UNIDIRECTIONAL SOLIDIFICATION OF EUTECTIC MATERIAL ORUNIDIRECTIONAL DEMIXING OF EUTECTOID MATERIAL
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Beschreibung
Zusammenfassung:	PURPOSE: To enable inexpensive production in a short time by moving a melted body from the solidification finishing side of a mixed crystal polycrystal body solidified from the one end of a synthesized raw material melt toward the solidification starting side to form a single crystal. CONSTITUTION: The constituent elements or a compound of a mixed crystal semiconductor is put in a container such as crucible, etc., and heated and melted to synthesize a raw material melt. The raw material melt is solidified (naturally solidified) to provide a mixed crystal polycrystal. The mixed crystal polycrystal body is cut at a compositional position matched with compositions of its seed crystals and a zone melting from the solidifyication finishing side by natural solidification in production of the mixed crystal polycrystal body toward the solidification starting side is carried out. The distribution of mixed crystals is not basically changed in the zone melting unless moving conditions of melted body are not changed.