Electric heating – Heating devices – Combined with container – enclosure – or support for material...
Patent
1975-05-19
1977-08-09
Bartis, A.
Electric heating
Heating devices
Combined with container, enclosure, or support for material...
118 491, 118500, 118641, 148171, 219354, 219390, 432259, H05B 302, F27D 1102, H01L 21324, F27D 500
Patent
active
040412784
ABSTRACT:
An apparatus for practicing temperature gradient zone melting includes a transparent tubular quartz glass work chamber for receiving a body of semiconductor material to be processed. An infrared radiation source is optically coupled to the interior of the chamber through a wall of the chamber for irradiating one surface of the semiconductor body. A metallic cooling block is placed in direct heat conductive engagement with the exterior of the tubular work chamber opposite to the infrared source to remove heat from the surface of the body opposite said one surface, thus making the temperature gradient set up in the body more uniform and unidirectional. The semiconductor body is supported in the chamber by support means making minimal thermal contact with the surface of the body opposite the said one surface. The chamber may be provided with closure means so that a closed atmosphere can be established therein.
REFERENCES:
patent: 2252963 (1941-08-01), Fahrenwald
patent: 2981819 (1961-04-01), Gregory
patent: 3427435 (1969-02-01), Webb
patent: 3480151 (1969-11-01), Schmitt
patent: 3623712 (1971-11-01), McNeilly et al.
patent: 3626154 (1971-12-01), Reed
patent: 3627590 (1971-12-01), Mammel
patent: 3660585 (1972-05-01), Waldron
patent: 3836751 (1974-09-01), Anderson
patent: 3895967 (1975-07-01), Anthony et al.
patent: 3897277 (1975-07-01), Blumenfeld
Bartis A.
General Electric Company
Mooney R. J.
Stoner D. E.
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