Title:
ELECTROMAGNETIC CASTING APPARATUS FOR SILICON
Document Type and Number:
WIPO Patent Application WO/2011/061847
Kind Code:
A1
Abstract:
Disclosed is an electromagnetic casting apparatus for silicon, which is capable of surely producing a high-quality silicon ingot by simple processes. The electromagnetic casting apparatus for silicon comprises a furnace container (100), a conductive crucible (200) that is provided within the furnace container (100), and an induction coil (300) that is provided on the outer periphery of the crucible (200). By setting the inside of the furnace container (100) at a constant pressure using a predetermined gas and applying a voltage to the induction coil (300), the silicon in the crucible (200) is melted by induction heating, and then solidified. The induction coil (300) is obtained by vertically arranging a plurality of induction coils (310, 320) which have different induction frequencies.
Inventors:
KANEKO KYOJIRO (JP)
Application Number:
PCT/JP2009/069685
Publication Date:
May 26, 2011
Filing Date:
November 20, 2009
Export Citation:
Assignee:
KANEKO KYOJIRO (JP)
International Classes:
C01B33/02
Domestic Patent References:
| WO2005019106A1 | 2005-03-03 |
Foreign References:
| JP2000264775A | 2000-09-26 | |||
| JP2008174397A | 2008-07-31 | |||
| JP2007051026A | 2007-03-01 | |||
| JPH0864354A | 1996-03-08 | |||
| JP2004342450A | 2004-12-02 | |||
| JP2007145610A | 2007-06-14 | |||
| JP2001019594A | 2001-01-23 | |||
| JP2001010900A | 2001-01-16 |
Other References:
See also references of EP 2502880A4
Attorney, Agent or Firm:
KOBAYASHI MASAKI (JP)
Kobayashi Masaki (JP)
Kobayashi Masaki (JP)
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