Seed-crystal holder for single-crystal pulling devices with magnetic field applied thereto
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United States of America Patent
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-
Dec 7, 1999
Grant Date -
N/A
app pub date -
Dec 8, 1997
filing date -
Dec 6, 1996
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
The hold member has a small-diameter portion and a large-diameter portion. An inner cylinder and an outer cylinder are disposed around the hold member in a concentric manner. The upper end of the hold member is affixed to a wire and suspended therefrom. A clearance is formed between the small-diameter portion and the inner cylinder. Clearances are created between the outer peripheral surface of the inner cylinder and the inner peripheral surface of the outer cylinder.
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