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.
More Like This:
JPH01175240 | MANUFACTURE OF SEMICONDUCTOR CHIP |
JP2020047905 | CHIP MANUFACTURING METHOD |
JPS5924617 | SOLID WORKING DEVICE FOR CEILING MATERIAL |
Inventors:
FU LIMING (CN)
MENG XIANGXI (CN)
CAO YUHONG (CN)
XU XIN (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:
Assignee:
CHANGZHOU SHICHUANG ENERGY CO LTD (CN)
International Classes:
B28D5/00; H01L31/18
Foreign References:
CN110466083A | 2019-11-19 | |||
CN110534617A | 2019-12-03 | |||
CN110625834A | 2019-12-31 | |||
CN109747055A | 2019-05-14 | |||
CN109747055A | 2019-05-14 | |||
CN106222738A | 2016-12-14 | |||
TWI539509B | 2016-06-21 | |||
TWI539509B | 2016-06-21 | |||
CN102313865A | 2012-01-11 | |||
CN108437246A | 2018-08-24 | |||
KR20030091540A | 2003-12-03 | |||
JP2005183839A | 2005-07-07 |
Attorney, Agent or Firm:
SUZHOU MAMBO PATENT AGENCY (GENERAL PARTNERSHIP) (CN)
Download PDF:
Previous Patent: ROTOR ASSEMBLY AND MOTOR HAVING SAME
Next Patent: ABNORMAL CELL PROCESSING METHOD, DEVICE, UNIT, AND COMPUTER-READABLE STORAGE MEDIUM
Next Patent: ABNORMAL CELL PROCESSING METHOD, DEVICE, UNIT, AND COMPUTER-READABLE STORAGE MEDIUM