Chemical apparatus and process disinfecting – deodorizing – preser – Chemical reactor – Including specific material of construction
Patent
1984-08-28
1987-11-03
Richman, Barry S.
Chemical apparatus and process disinfecting, deodorizing, preser
Chemical reactor
Including specific material of construction
156617SP, 156DIG93, 156 89, C30B 1500
Patent
active
047042575
ABSTRACT:
An apparatus for pulling single crystals of dissociative compounds, with a volatile component gas sealed in a growth chamber at a controlled pressure thereof, is disclosed, wherein the chamber is made of one or more materials selected from the group consisting of ceramics, gas-tight carbon, heat-resistant metallic materials, ceramic-coated carbon and ceramic-coated heat-resistant metallic materials, the chamber can be divided, with a structure of the divided portion of the chamber capable of being sealed by making use of a sealing material with a pressure exerted on the seal, and an optical window is disposed in the chamber through which the growing state of the crystal in the chamber can be observed.
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Nygren et al; Properties of GaP Single Crystals Grown by Liquid Encapsulated Pulling; J. Electrochem. Soc. Solid State Science, vol. 118, No. 2, 2/'71, pp. 306-312.
Moulin et al; Growth of GaAs Single Crystals by a Rotating Liquid Seal Method; J. of Crystal Growth, 24/25 (1974) 376-9.
Leung et al; Liquid-Seal Czochralski Growth of Gallium Arsenide; J. of Crystal, Growth 19 (1973) 356-8.
Sassa Koichi
Shimanuki Yasushi
Tomizawa Kenji
Gzybowski Michael S.
Mitsubishi Metal Corporation
Research Development Corporation of Japan
Richman Barry S.
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