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Title:
WAFER FOR SOLAR CELL, SOLAR CELL, AND PRODUCTION METHOD THEREFOR
Document Type and Number:
WIPO Patent Application WO/2013/002060
Kind Code:
A1
Abstract:
A production method for a silicon wafer (1) for a solar cell, including: a step in which a silicon crystal ingot (50) is sliced by an electrodeposition wire (53) comprising abrasive grains (22) having an average particle diameter of 8-11 µm; and a step in which a crystal silicon wafer (11) obtained by said slicing of the silicon crystal ingot (50) is etched so as to have a facet (62) having a width of 10-150 µm in the surface of said crystal silicon wafer (11).

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Inventors:
TAKAKI AKIHIDE
NAKAMURA MASATSUGU
HOJO YOSHIYUKI
KUMADA HIROSHI
WAKUDA JUNZOH
HAYASHI TETSUYA
Application Number:
PCT/JP2012/065574
Publication Date:
January 03, 2013
Filing Date:
June 19, 2012
Export Citation:
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Assignee:
SHARP KK (JP)
TAKAKI AKIHIDE
NAKAMURA MASATSUGU
HOJO YOSHIYUKI
KUMADA HIROSHI
WAKUDA JUNZOH
HAYASHI TETSUYA
International Classes:
H01L31/04; B28D5/04; H01L21/304
Domestic Patent References:
WO2009041266A12009-04-02
WO2011024910A12011-03-03
Foreign References:
JP2011079106A2011-04-21
JP2010167509A2010-08-05
Attorney, Agent or Firm:
Fukami Patent Office, p. c. (JP)
Patent business corporation Fukami patent firm (JP)
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