Fishing – trapping – and vermin destroying
Patent
1988-11-09
1990-10-02
Hearn, Brian E.
Fishing, trapping, and vermin destroying
437 10, 437 13, 148DIG60, 148DIG71, H01L 2100, H01L 2102, H01L 2126, H01L 21203
Patent
active
049607219
ABSTRACT:
A method of heat treatment for purifying a Groups II-VI compound semiconductor and for producing a purity Groups II-VI compound semiconductor crystal using a sealed container placed a Groups II-VI compound semiconductor crystal as a raw material is disclosed. The process includes heating means applied to the sealed container having a temperature difference which has a high-temperature zone and a low-temperature zone into the sealed container, placing the raw material into the high-temperature zone of the sealed container, using a heat atom making an atmosphere of either a Group II element or a Group VI element, or a mixed atmosphere of either which is necessary to treat the Groups II-VI compound semiconductor into the sealed container, and using a Groups II-VI compound semiconductor as raw material.
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Kawachi Masaru
Terashima Kazutaka
Yoshida Hiroaki
Everhart B.
Hearn Brian E.
Kabushiki Kaisha Toshiba
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