Method of producing silicon useful for semiconductor component m

Details Method of producing silicon useful for semiconductor component m Method of producing silicon useful for semiconductor component m

1977-05-19

1978-06-27

Stern, Edward

Chemistry of inorganic compounds

Silicon or compound thereof

Elemental silicon

423278, 423290, 423299, 423DIG12, C01B 3302, C01B 3508, C01B 3510, C01B 2506

Patent

active

040975843

ABSTRACT:
Technical-grade silicon is purified to produce silicon having less than 1 ppm of electrically effective impurities therein, particularly boron and phosphorus, by treating molten technical silicon with a hydrogen containing gas in the presence of water so as to remove such impurities from the molten silicon.

REFERENCES:
patent: 1180968 (1916-04-01), Brockbank
patent: 2402662 (1946-06-01), Ohl
patent: 3008887 (1961-11-01), Herglotz

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