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1. (WO2015046746) CRUCIBLE AND INGOT GROWING DEVICE COMPRISING SAME

Pub. No.:    WO/2015/046746    International Application No.:    PCT/KR2014/007282
Publication Date: Fri Apr 03 01:59:59 CEST 2015 International Filing Date: Thu Aug 07 01:59:59 CEST 2014
IPC: C30B 15/22
C30B 15/14
C30B 29/06
Applicants: LG SILTRON INC.
엘지실트론 주식회사
Inventors: JUNG, Han-Sol
정한솔
KIM, Do-Yeon
김도연
Title: CRUCIBLE AND INGOT GROWING DEVICE COMPRISING SAME
Abstract:
An ingot growing device according to the present embodiment comprises: a quartz crucible containing a silicon melted liquid; a graphite crucible containing the quartz crucible; a crucible stand for supporting the lower portion of the graphite crucible; and a heater unit for providing heat towards the graphite crucible, wherein the graphite crucible comprises an inner body, which contacts the quartz crucible, and an outer body, which is arranged at a predetermined distance from the inner body, and an inert gas layer is formed between the inner and outer bodies, inert gas being injected into the insert gas layer. The present invention described above is advantageous in that the crucible interior is insulated during melting of polysilicon, thereby reducing heater power, and a phenomenon of concentration of degradation at a specific part of the crucible inner wall is prevented, thereby avoiding damage by degradation and lengthening the life of the crucible.