Process and apparatus for the cyclical manufacture of silicon sh

Details Process and apparatus for the cyclical manufacture of silicon sh Process and apparatus for the cyclical manufacture of silicon sh

1985-06-26

1988-09-06

Doll, John

Adhesive bonding and miscellaneous chemical manufacture

Delaminating processes adapted for specified product

Delaminating in preparation for post processing recycling step

156DIG64, 1641222, C30B 1114, C30B 904

Patent

active

047691077

ABSTRACT:
A process and apparatus for the manufacture of silicon blocks having a columnar structure comprising monocrystalline crystal zones having a crystallographic preferred orientation. In a casting process, each mold filled with molten silicon is transferred, before the silicon has solidified completely, to a separate crystallization station where the silicon can then crystallize completely. During this process, the exposed surface of the silicon is maintained in a molten state until the end of the solidification process has almost been reached. The process allows the various, necessary steps to be carried out simultaneously and yields high-quality solar cell base material.

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patent: 3771586 (1973-11-01), Waring
patent: 4175610 (1979-11-01), Zauhar et al.
patent: 4312700 (1982-01-01), Helmreich et al.
patent: 4341589 (1982-07-01), Grabmaier
patent: 4382838 (1983-05-01), Authier
patent: 4561930 (1985-12-01), Schwirtlich et al.
patent: 4665970 (1987-05-01), Ohno

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