METHOD OF PREPARING SILICON MONOCRYSTALS INVOLVING MONOCRYSTAL GROWTH DISRUPTION Russian patent published in 2002 - IPC

Abstract RU 2189407 C2

FIELD: crystal growing. SUBSTANCE: method includes drawing ingot from melt toward seed, detaching ingot from melt, filling up the melt, and drawing following ingot. Method is characterized by that, when ingot is being drawn, its morphology is being controlled and, in case a disruption or interruption of the growth of monocrystal faces is fixed, detachment of ingot from the melt is accomplished. EFFECT: increased yield of valid product due to elevated degree of the melt purity, reduced polycrystalline part in grown ingot, and enabled use of raw material with greater degree of pollution. 1 tbl

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RU 2 189 407 C2

Authors

Beringov Sergej Borisovich

Ushankin Jurij Vladimirovich

Shul'Ga Jurij Grigor'Evich

Dates

2002-09-20Published

2000-01-31Filed