CORE WIRE HOLDER, APPARATUS FOR PREPARING SILICON, AND METHOD FOR PREPARING SILICON

CORE WIRE HOLDER, APPARATUS FOR PREPARING SILICON, AND METHOD FOR PREPARING SILICON

An object is to improve deposition of silicon on a base portion of a silicon filament. A filament holder (10A) includes a filament holding portion (12A) which has a substantially truncated cone shape. The filament holding portion (12A) has, in a top surface (12a) thereof, a filament insert hole (13A...

Ausführliche Beschreibung

Gespeichert in:
Bibliographische Detailangaben
Hauptverfasser: AIMOTO, Yasumasa, IMURA, Tetsuya, ISHIKAWA, Kohichi
Format: Patent
Sprache:eng
Schlagworte:
CHEMISTRY
COMPOUNDS THEREOF
INORGANIC CHEMISTRY
METALLURGY
NON-METALLIC ELEMENTS
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Beschreibung
Zusammenfassung:An object is to improve deposition of silicon on a base portion of a silicon filament. A filament holder (10A) includes a filament holding portion (12A) which has a substantially truncated cone shape. The filament holding portion (12A) has, in a top surface (12a) thereof, a filament insert hole (13A) configured to hold a silicon filament (4A). The angle (0) between the axis and the generatrix of the substantially truncated cone shape is not less than 10 degrees and not more than 30 degrees. The margin width (L) of the filament holding portion (12A) between the outer periphery of the top surface (12a) of the filament holding portion (12A) and an inner wall surface (13a), which is contacted by the silicon filament (4A) of the filament insert hole (13A) is not more than 3 mm at at least one location.