Title:
FOREIGN OBJECT REMOVAL DEVICE AND METHOD FOR PRODUCING SOLAR CELL USING SAME
Document Type and Number:
WIPO Patent Application WO/2014/184876
Kind Code:
A1
Abstract:
In the present invention, a rotating brush (37) of soft hairs produced at high precision and having an outer diameter equivalent to a texture size is contacted to a (solar) cell (10) immediately after CVD film production by an amount corresponding to the texture size; p-n junction breakage resulting from texture chipping is avoided; and only CVD foreign objects such as foreign object microparticles (14) and foreign object coarse particles (14G) are eliminated by means of the rotational force of the rotating brush (37). As a result, it is possible to produce a solar cell without a brush material adhering to the cell surface in a manner so as to cause problems in a printing step or in a manner so as to cause scratches at the cell surface, even while eliminating CVD foreign objects that lead to a hindrance in the printing of a grid electrode having a width of 30-150 μm.
Inventors:
NAKATANI MITSUNORI (JP)
KURODA AKIHIRO (JP)
ASANO TOSHIYA (JP)
OKIMOTO TAKASHI (JP)
KURODA AKIHIRO (JP)
ASANO TOSHIYA (JP)
OKIMOTO TAKASHI (JP)
Application Number:
PCT/JP2013/063439
Publication Date:
November 20, 2014
Filing Date:
May 14, 2013
Export Citation:
Assignee:
MITSUBISHI ELECTRIC CORP (JP)
International Classes:
B08B1/02; B08B1/04; B08B5/02; B08B5/04; H01L21/304; H01L31/042
Foreign References:
| JP2009195968A | 2009-09-03 | |||
| JP2007294809A | 2007-11-08 | |||
| JPS62174687U | 1987-11-06 | |||
| JP2007514177A | 2007-05-31 | |||
| JP2013030665A | 2013-02-07 | |||
| JP2003218368A | 2003-07-31 |
Attorney, Agent or Firm:
SAKAI, HIROAKI (JP)
Hiroaki Sakai (JP)
Hiroaki Sakai (JP)
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