Method of purifying germanium bodies

Details Method of purifying germanium bodies Method of purifying germanium bodies

1977-02-25

1979-08-21

Bernstein, Hiram H.

Adhesive bonding and miscellaneous chemical manufacture

Delaminating processes adapted for specified product

Delaminating in preparation for post processing recycling step

156620, 156DIG66, 148191, B01J 1217

Patent

active

041652495

ABSTRACT:
A germanium body containing impurities therein, such as B or Al is provided with a layer of a gettering material such as pure Si or SiO.sub.2, along at least one surface of the body, a melt zone is generated about the so-coated body and passed a number of times from one end of the body to the other whereby the gettering material binds the impurities within the germanium body and complex-impurity compounds accumulate at the respective ends of the body. After a desired degree of purity is achieved, the melt zone is deenergized and the impurity-containing ends are severed from the remaining body portion and any excess gettering material is removed.

REFERENCES:
patent: 2739088 (1956-03-01), Pfann
patent: 3047380 (1962-07-01), Bloem
patent: 3102828 (1963-09-01), Courvoisier
patent: 3162526 (1964-12-01), Vanik
patent: 3285017 (1966-11-01), Henderson et al.
patent: 3671330 (1972-06-01), Hall
patent: 4000020 (1976-12-01), Gartman
Haller et al., IEEE Transactions on Nuclear Science, vol. NS-23, No. 1, Feb. 1976.

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