Apparatus for producing a controlled radial path of resistance i

Details Apparatus for producing a controlled radial path of resistance i Apparatus for producing a controlled radial path of resistance i

1975-08-22

1977-08-02

Yudkoff, Norman

Chemistry: physical processes

Physical processes

Crystallization

156606, 156620, B01J 1710

Patent

active

040392830

ABSTRACT:
An apparatus for controlling a radial path of resistance in a semiconductor monocrystalline rod produced by a crucible-free zone melting whereby the material flow path and heat distribution in the melt zone is controlled by a guided stream of protective gas.

REFERENCES:
patent: 2907642 (1959-10-01), Rummel
patent: 2914397 (1959-11-01), Sterling
patent: 2914397 (1959-11-01), Sterling
patent: 3002824 (1961-10-01), Francois
patent: 3232716 (1966-02-01), Quast et al.
patent: 3234009 (1966-02-01), Siebertz
patent: 3293002 (1966-12-01), Spielmann et al.
patent: 3442622 (1969-05-01), Monnier et al.
patent: 3804682 (1974-04-01), Keller
O'Connor et al., "Growth of Silicon and Germanium Disks," J. Applied Physics, vol. 29, No. 2, p. 222, (Feb. 1957).

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