Heating resistor of single crystal manufacturing apparatus

Details Heating resistor of single crystal manufacturing apparatus Heating resistor of single crystal manufacturing apparatus

1984-03-22

1985-08-06

Mayewsky, Volodymyr Y.

Electric heating

Heating devices

With heating unit structure

219426, 219539, 338217, 338294, 373134, H05B 310

Patent

active

045338221

ABSTRACT:
A heating resistor of a single crystal manufacturing apparatus, which comprises a cylindrical side wall portion surrounding a melting pot, a bottom portion supporting the side wall portion, and a plurality of slits formed in the side wall portion and bottom portion, wherein said bottom portion has a maximum thickness which is not greater than that of said side wall portion, and said bottom portion has a minimum inner diameter which falls within a range of 20 to 80% of an inner diameter of a lowermost portion of said side wall portion.

REFERENCES:
patent: 2966537 (1960-12-01), Witucki et al.
patent: 3300566 (1967-01-01), Walker
patent: 3381114 (1968-04-01), Nakamura
patent: 3709998 (1973-01-01), Anthony et al.
patent: 3786165 (1974-01-01), Barbier et al.
patent: 3860736 (1975-01-01), Ford
patent: 4297562 (1981-10-01), Kamogawa et al.
patent: 4467185 (1984-08-01), Moritoki et al.
54128990, 03001978 Japan--Patent Abstracts of Japan, vol. 3, No. 152 (C-67), Dec. 14, 1979, p. 72 C 67.

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