发明名称 |
METHOD AND DEVICE FOR OBTAINING A MULTICRYSTALLINE SEMICONDUCTOR MATERIAL, IN PARTICULAR SILICON |
摘要 |
<p>A device (1) for obtaining multicrystalline silicon, including: at least one crucible (3) made of quartz for the silicon, removably housed in a cup-shaped graphite container (4); a fluid-tight casing (5), including a fixed bottom half-shell (6) and a vertically mobile top half-shell (7); a top induction coil (12), set facing, with interposition of a graphite plate (14), the crucible, a lateral induction coil (16), set around a side wall (17) of the graphite container, and a bottom induction coil (18), set facing a bottom wall (19) of the graphite container and vertically mobile for varying the distance (D) from the bottom wall; and means (20) for a. c. electrical supply of the induction coils separately from one another; at least the lateral induction coil (16) includes a plurality of plane turns (13a...13e) set on top of one another, and means (25) for selectively short-circuiting, supplying or not supplying the turns, all together or separately one or more at a time and for varying the frequency of supply thereof all together or separately one or more at a time.</p> |
申请公布号 |
WO2011048473(A1) |
申请公布日期 |
2011.04.28 |
申请号 |
WO2010IB02685 |
申请日期 |
2010.10.20 |
申请人 |
SAET S.P.A.;DUGHIERO, FABRIZIO;FORZAN, MICHELE;CISCATO, DARIO;CESANO, MARIOLINO;CRIVELLO, FABRIZIO;BERNABINI, PAOLO |
发明人 |
DUGHIERO, FABRIZIO;FORZAN, MICHELE;CISCATO, DARIO;CESANO, MARIOLINO;CRIVELLO, FABRIZIO;BERNABINI, PAOLO |
分类号 |
C30B11/00;B22D27/04;C30B29/06;C30B35/00;F27B14/14;H05B6/36;H05B6/44 |
主分类号 |
C30B11/00 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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