Process and apparatus for the continuous checking of the superme

Details Process and apparatus for the continuous checking of the superme Process and apparatus for the continuous checking of the superme

1987-04-16

1989-01-10

Doll, John

Adhesive bonding and miscellaneous chemical manufacture

Delaminating processes adapted for specified product

Delaminating in preparation for post processing recycling step

1566207, 156601, 422248, 422254, C30B 1316, C30B 3500

Patent

active

047971746

ABSTRACT:
The present invention relates to a process and an apparatus for checking the supercooling of a monocrystal during its formation.
There is a continuous measurement of the potential difference between one point of the forming crystal and one point of a solid part of the material separated from the liquid by a reference interface differing from the solidification front. This potential difference makes is possible to determine the temperature deviation due to the supercooling at the solidification front and the dopant concentration of the crystal being formed.

REFERENCES:
patent: 2813048 (1957-11-01), Pfann
patent: 3592455 (1971-07-01), Gallet et al.
patent: 3922527 (1975-11-01), Witkin et al.
Owen et al., "Thermoelectric Monitoring of the Interface Temperature During Czochralski Growth of InSb", J. Crys. Growth, 42 (1977), 499-502.

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