Invention Grant
- Patent Title: Graphite crucible for electromagnetic induction melting silicon and apparatus for silicon melting and refining using the graphite crucible
- Patent Title (中): 用于电磁感应熔化硅的石墨坩埚和使用石墨坩埚进行硅熔化和精炼的设备
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Application No.: US13123897Application Date: 2008-11-17
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Publication No.: US09001863B2Publication Date: 2015-04-07
- Inventor: Bo Yun Jang , Young Soo Ahn , Joon Soo Kim , Sang Hyun Park , Dong Kook Kim , Gwon Jong Yu
- Applicant: Bo Yun Jang , Young Soo Ahn , Joon Soo Kim , Sang Hyun Park , Dong Kook Kim , Gwon Jong Yu
- Applicant Address: KR Daejeon-Si
- Assignee: Korea Institute of Energy Research
- Current Assignee: Korea Institute of Energy Research
- Current Assignee Address: KR Daejeon-Si
- Agency: Lowe Hauptman & Ham, LLP
- Priority: KR10-2008-0101659 20081016
- International Application: PCT/KR2008/006766 WO 20081117
- International Announcement: WO2010/044508 WO 20100422
- Main IPC: H05B6/22
- IPC: H05B6/22 ; C30B13/14

Abstract:
A graphite crucible for electromagnetic induction-based silicon melting and an apparatus for silicon melting/refining using the same, which performs a melting operation by a combination of indirect melting and direct melting. The crucible is formed of a graphite material and includes a cylindrical body having an open upper part through which a silicon raw material is charged into the crucible, and an outer wall surround by an induction coil, wherein a plurality of first slits are vertically formed through the outer wall and an inner wall of the crucible, and a plurality of second slits are vertically formed from an edge of the disc-shaped bottom of the crucible toward a center of the bottom.
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