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Patent Searching and Data


Title:
UTILIZATION METHOD FOR SILICON ROD LEFTOVER MATERIAL
Document Type and Number:
WIPO Patent Application WO/2021/022960
Kind Code:
A1
Abstract:
A utilization method for a silicon rod leftover material. The qualified leftover material is selected according to the extreme difference of minority carrier lifetime in the length direction and the extreme difference of resistivity in the length direction, and the leftover material is cut into silicon wafers. Compared with an existing method for melting and returning the leftover material to a furnace, the method can utilize the leftover material more effectively, the utilization rate of the silicon rod is improved, and the energy waste is reduced.

Inventors:
FU LIMING (CN)
MENG XIANGXI (CN)
CAO YUHONG (CN)
XU XIN (CN)
Application Number:
PCT/CN2020/100650
Publication Date:
February 11, 2021
Filing Date:
July 07, 2020
Export Citation:
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Assignee:
CHANGZHOU SHICHUANG ENERGY CO LTD (CN)
International Classes:
B28D5/00; H01L31/18
Foreign References:
CN110466083A2019-11-19
CN110534617A2019-12-03
CN110625834A2019-12-31
CN109747055A2019-05-14
CN109747055A2019-05-14
CN106222738A2016-12-14
TWI539509B2016-06-21
TWI539509B2016-06-21
CN102313865A2012-01-11
CN108437246A2018-08-24
KR20030091540A2003-12-03
JP2005183839A2005-07-07
Attorney, Agent or Firm:
SUZHOU MAMBO PATENT AGENCY (GENERAL PARTNERSHIP) (CN)
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