Chemistry: physical processes – Physical processes – Crystallization
Patent
1975-03-17
1977-04-19
Yudkoff, Norman
Chemistry: physical processes
Physical processes
Crystallization
156601, 156609, 156610, 156616A, 423111, 423299, B01J 1708, B01J 1706
Patent
active
040185664
ABSTRACT:
In apparatus for the preparation of a semiconductor compound such as gallium phosphide using the Bridgman method in a horizontal system equipped with a heating device and disposed in a pressure vessel, the reaction tube is mounted in a stationary fashion in a reaction boat and the heating device supported so that it is moveable in the direction of the horizontal axis of the system to permit synthesis of the semiconductor compound along with zone melting and drawing of single crystals. A light guide having its free end arranged below the reaction tube is mounted to the heating device for movement therewith and is used to measure the temperature at the reaction boat.
REFERENCES:
patent: 986180 (1911-03-01), Koenig
patent: 2893847 (1959-07-01), Schweickert et al.
patent: 3188373 (1965-06-01), Brunet et al.
patent: 3366454 (1968-01-01), Folberth et al.
patent: 3877883 (1975-04-01), Berkman
patent: 3884642 (1975-05-01), Benedict
C. J. Frosch, et al., J. of the Electrochemical Soc., vol. 108, 1961, pp. 251-257.
F. A. Cunnell, et al., J. of Scientific Instruments, vol. 37, Nov. 1960, pp. 410-414.
Stadter Josef
Zeuch Klaus
Hollander Barry I.
Siemens Aktiengesellschaft
Yudkoff Norman
LandOfFree
Light responsive measuring device for heater control does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Light responsive measuring device for heater control, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Light responsive measuring device for heater control will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-100648