发明名称 METHOD AND SYSTEM FOR FORMING A SILICON INGOT USING A LOW-GRADE SILICON FEEDSTOCK
摘要 <p>Techniques for the formation of a silicon ingot using a low-grade silicon feedstock include forming within a crucible device a molten silicon from a low-grade silicon feedstock and performing a directional solidification of the molten silicon to form a silicon ingot within the crucible device. The directional solidification forms a generally solidified quantity of silicon and a generally molten quantity of silicon. The method and system include removing from the crucible device at least a portion of the generally molten quantity of silicon while retaining within the crucible device the generally solidified quantity of silicon. Controlling the directional solidification of the generally solidified quantity of silicon, while removing the more contaminated molten silicon, results in a silicon ingot possessing a generally higher grade of silicon than the low-grade silicon feedstock.</p>
申请公布号 EP2179078(B1) 申请公布日期 2012.03.07
申请号 EP20080796655 申请日期 2008.07.25
申请人 CALISOLAR, INC. 发明人 KIRSCHT, FRITZ;HEUER, MATTHIAS;ABROSIMOVA, VERA;LINKE, DIETER;RAKOTONIAINA, JEAN, PATRICE;OUNADJELA, KAMEL
分类号 C30B29/06;C30B11/00 主分类号 C30B29/06
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