Feasibility of directional solidification of silicon ingot by electromagnetic casting

Feng Huang; Ruirun Chen; Jingjie Guo; Hongsheng Ding; Yanqing Su; Jieren Yang; Hengzhi Fu

doi:10.1016/j.mssp.2011.12.006

Feasibility of directional solidification of silicon ingot by electromagnetic casting

Feng Huang
, Ruirun Chen^*
, Jingjie Guo
, Hongsheng Ding
, Yanqing Su
, Jieren Yang
, Hengzhi Fu

^*Corresponding author for this work

Harbin Institute of Technology

Research output: Contribution to journal › Article › peer-review

13 Scopus citations

Abstract

Electromagnetic casting is a novel technology that combines the advantages of electromagnetic cold crucible and continuous casting. By controlling induction heating and strengthening bottom cooling, multicrystalline silicon ingot with 60 mm×60 mm in cross section was continuously and directionally solidified by this technology. The ingot shows smooth surface and consists of uniform columnar crystals with no precipitate except in the top part. The grain size of the top part is smaller due to higher impurity content and the impurities acting as nucleation sites for grain. The density of dislocations at the bottom and middle parts, about 1×10 ⁶ cm ^-2, is much less than that at the top part.

Original language	English
Pages (from-to)	380-385
Number of pages	6
Journal	Materials Science in Semiconductor Processing
Volume	15
Issue number	4
DOIs	https://doi.org/10.1016/j.mssp.2011.12.006
State	Published - Aug 2012
Externally published	Yes

Keywords

Crystal growth
Defects
Electromagnetic casting
Multicrystalline silicon

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10.1016/j.mssp.2011.12.006

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title = "Feasibility of directional solidification of silicon ingot by electromagnetic casting",

abstract = "Electromagnetic casting is a novel technology that combines the advantages of electromagnetic cold crucible and continuous casting. By controlling induction heating and strengthening bottom cooling, multicrystalline silicon ingot with 60 mm×60 mm in cross section was continuously and directionally solidified by this technology. The ingot shows smooth surface and consists of uniform columnar crystals with no precipitate except in the top part. The grain size of the top part is smaller due to higher impurity content and the impurities acting as nucleation sites for grain. The density of dislocations at the bottom and middle parts, about 1×10 6 cm -2, is much less than that at the top part.",

keywords = "Crystal growth, Defects, Electromagnetic casting, Multicrystalline silicon",

author = "Feng Huang and Ruirun Chen and Jingjie Guo and Hongsheng Ding and Yanqing Su and Jieren Yang and Hengzhi Fu",

year = "2012",

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doi = "10.1016/j.mssp.2011.12.006",

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T1 - Feasibility of directional solidification of silicon ingot by electromagnetic casting

AU - Huang, Feng

AU - Chen, Ruirun

AU - Guo, Jingjie

AU - Ding, Hongsheng

AU - Su, Yanqing

AU - Yang, Jieren

AU - Fu, Hengzhi

PY - 2012/8

Y1 - 2012/8

N2 - Electromagnetic casting is a novel technology that combines the advantages of electromagnetic cold crucible and continuous casting. By controlling induction heating and strengthening bottom cooling, multicrystalline silicon ingot with 60 mm×60 mm in cross section was continuously and directionally solidified by this technology. The ingot shows smooth surface and consists of uniform columnar crystals with no precipitate except in the top part. The grain size of the top part is smaller due to higher impurity content and the impurities acting as nucleation sites for grain. The density of dislocations at the bottom and middle parts, about 1×10 6 cm -2, is much less than that at the top part.

AB - Electromagnetic casting is a novel technology that combines the advantages of electromagnetic cold crucible and continuous casting. By controlling induction heating and strengthening bottom cooling, multicrystalline silicon ingot with 60 mm×60 mm in cross section was continuously and directionally solidified by this technology. The ingot shows smooth surface and consists of uniform columnar crystals with no precipitate except in the top part. The grain size of the top part is smaller due to higher impurity content and the impurities acting as nucleation sites for grain. The density of dislocations at the bottom and middle parts, about 1×10 6 cm -2, is much less than that at the top part.

KW - Crystal growth

KW - Defects

KW - Electromagnetic casting

KW - Multicrystalline silicon

UR - https://www.scopus.com/pages/publications/84863313584

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DO - 10.1016/j.mssp.2011.12.006

M3 - 文章

AN - SCOPUS:84863313584

SN - 1369-8001

VL - 15

SP - 380

EP - 385

JO - Materials Science in Semiconductor Processing

JF - Materials Science in Semiconductor Processing

IS - 4

ER -

Feasibility of directional solidification of silicon ingot by electromagnetic casting

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Keywords

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