Chemical apparatus and process disinfecting – deodorizing – preser – Chemical reactor – Including specific material of construction
Patent
1990-08-08
1991-10-15
Chaudhuri, Olik
Chemical apparatus and process disinfecting, deodorizing, preser
Chemical reactor
Including specific material of construction
156607, 1566163, 373115, 373143, 373144, C30B 2702
Patent
active
050572873
ABSTRACT:
A method and apparatus for growing an extended length single crystal of a Group III-V or II-VI material such as GaAs by moving a crucible containing a seed crystal and precompounded crystal material encapsulated in a molten encapsulant preferably vertically in a multi-zone furnace between two furnace zones maintained at temperatures above the melting point of the encapsulant but below the melting point of the crystal material through an intervening short "spike" zone maintained at a temperature at least equal to the melting temperature of the crystal material to crystallize the precompounded crystal material with the seed crystal, and tipping the crucible in the furnace, e.g. by tipping the furnace with the crucible in it, to decant the encapsulant prior to recovering the crystal.
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Chaudhuri Olik
Garrett Felisa
SFA, Inc.
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