CN102306683A - Processing method of silicon chip reworked after screen printing - Google Patents
Processing method of silicon chip reworked after screen printing Download PDFInfo
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- CN102306683A CN102306683A CN201110276340A CN201110276340A CN102306683A CN 102306683 A CN102306683 A CN 102306683A CN 201110276340 A CN201110276340 A CN 201110276340A CN 201110276340 A CN201110276340 A CN 201110276340A CN 102306683 A CN102306683 A CN 102306683A
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- silicon chip
- screen printing
- processing method
- reworked
- hydrochloric acid
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P70/00—Climate change mitigation technologies in the production process for final industrial or consumer products
- Y02P70/50—Manufacturing or production processes characterised by the final manufactured product
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Abstract
The invention relates to a processing method of a silicon chip reworked after screen printing. The method comprises the following steps: cleaning the silicon chip by adopting alcohol mixed with terpineol; then putting the silicon chip in hydrochloric acid with the mass percent concentration of 3-8% and immersing for 1-3 hours; then removing the residual hydrochloric acid on the surface of the silicon chip by utilizing de-ionized water; and finally putting the wetted silicon chip into alcohol for soaking and dehydration. By adopting the method provided by the invention, the problem of aluminum being residual on the surface of the silicon chip of the screen printing reworked chip in the treating process can be reduced, the generation of rejected products is reduced, and the solar conversion efficiency of the silicon chip is improved.
Description
Technical field
The present invention relates to a kind of processing method of the silicon chip of after silk screen printing, doing over again.
Background technology
At present; Existing solar cell can produce many silicon chips of doing over again in screen printing process; Traditional processing method adopts terpinol to add the manual cleaning of alcohol; Perhaps using alcohol to do the solvent supersonic ripple cleans; These two kinds of methods can make the part aluminium paste remain in silicon chip surface; Finally cause battery sheet dark current higher, open circuit voltage is on the low side, thereby has reduced qualification rate and conversion efficiency that the battery sheet is produced.
Summary of the invention
The purpose of this invention is to provide that to reduce silicon chip surface aluminium residual, thereby improve a kind of processing method of the silicon chip of after silk screen printing, doing over again of the solar energy converting efficient of silicon chip.
The technical scheme that the present invention takes is: a kind of processing method of the silicon chip of after silk screen printing, doing over again; It is characterized in that adopting alcohol to add terpinol earlier cleans up silicon chip; Then silicon slice placed was soaked 1～3 hour in the hydrochloric acid of mass percent concentration 3～8%; Afterwards; Use the deionized water hydrochloric acid that silicon chip surface is residual to remove; At last, the silicon chip of band water is put into alcohol and soak dehydration.
Adopt the inventive method, can reduce the silk screen printing residual problem of silicon chip surface aluminium in the sheet processing procedure of doing over again, reduce the generation of defective item, improve the solar energy converting efficient of silicon chip.
Embodiment
Embodiment below in conjunction with concrete is described further the present invention.
This a kind of processing method of after silk screen printing, doing over again silicon chip comprises the following steps:
One, adopt alcohol to add terpinol earlier, manual front, the back side with silicon chip cleans up.
Two, silicon slice placed is soaked taking-up in 1～3 hour in the hydrochloric acid of mass percent concentration 3～8%.
Three, use the deionized water rinsing silicon chip, the hydrochloric acid that silicon chip surface is residual is removed.
Four, will put into alcohol with the silicon chip of water and soak more than 20 seconds, make the silicon chip surface dehydration.
Adopt above-mentioned steps, show, can reach the generation that reduces defective item, improve the purpose of the solar energy converting efficient of silicon chip fully with silicon chip surface aluminium residue removal through actual test result.
Claims (1)
1. processing method of silicon chip of after silk screen printing, doing over again; It is characterized in that adopting alcohol to add terpinol earlier cleans up silicon chip; Then silicon slice placed was soaked 1～3 hour in the hydrochloric acid of mass percent concentration 3～8%; Afterwards; Use the deionized water hydrochloric acid that silicon chip surface is residual to remove; At last, the silicon chip of band water is put into alcohol and soak dehydration.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201110276340A CN102306683A (en) | 2011-09-09 | 2011-09-09 | Processing method of silicon chip reworked after screen printing |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201110276340A CN102306683A (en) | 2011-09-09 | 2011-09-09 | Processing method of silicon chip reworked after screen printing |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN102306683A true CN102306683A (en) | 2012-01-04 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201110276340A Pending CN102306683A (en) | 2011-09-09 | 2011-09-09 | Processing method of silicon chip reworked after screen printing |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN102306683A (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103337563A (en) * | 2013-07-15 | 2013-10-02 | 山东力诺太阳能电力股份有限公司 | Method for reworking defective printing piece of crystalline silicon solar cell |
| CN104009122A (en) * | 2014-05-26 | 2014-08-27 | 奥特斯维能源（太仓）有限公司 | Processing method for reworking silicon wafers in silk-screen printing |
| CN104624566A (en) * | 2013-11-15 | 2015-05-20 | 浙江鸿禧能源股份有限公司 | Method for wiping screen printing plate in silk-screen printing |
| CN105449036A (en) * | 2015-12-03 | 2016-03-30 | 通威太阳能（合肥）有限公司 | Reworking treatment method for poor screen printing sheet |
| CN105537181A (en) * | 2015-12-17 | 2016-05-04 | 欧贝黎新能源科技股份有限公司 | Cleaning device and method for screen printing defective pieces |
| CN108198874A (en) * | 2017-12-28 | 2018-06-22 | 南京日托光伏科技股份有限公司 | A kind of processing method of MWT battery silk-screen printing defective products |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101217169A (en) * | 2007-12-27 | 2008-07-09 | 江阴浚鑫科技有限公司 | A reworking method on degraded products after the printing of crystal silicon solar battery |
| CN102074617A (en) * | 2010-12-02 | 2011-05-25 | 上海超日(洛阳)太阳能有限公司 | Processing method for screen-printing reworked silicon slice |
-
2011
- 2011-09-09 CN CN201110276340A patent/CN102306683A/en active Pending
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101217169A (en) * | 2007-12-27 | 2008-07-09 | 江阴浚鑫科技有限公司 | A reworking method on degraded products after the printing of crystal silicon solar battery |
| CN102074617A (en) * | 2010-12-02 | 2011-05-25 | 上海超日(洛阳)太阳能有限公司 | Processing method for screen-printing reworked silicon slice |
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103337563A (en) * | 2013-07-15 | 2013-10-02 | 山东力诺太阳能电力股份有限公司 | Method for reworking defective printing piece of crystalline silicon solar cell |
| CN104624566A (en) * | 2013-11-15 | 2015-05-20 | 浙江鸿禧能源股份有限公司 | Method for wiping screen printing plate in silk-screen printing |
| CN104009122A (en) * | 2014-05-26 | 2014-08-27 | 奥特斯维能源（太仓）有限公司 | Processing method for reworking silicon wafers in silk-screen printing |
| CN104009122B (en) * | 2014-05-26 | 2016-05-18 | 奥特斯维能源（太仓）有限公司 | The do over again processing method of silicon chip of a kind of serigraphy |
| CN105449036A (en) * | 2015-12-03 | 2016-03-30 | 通威太阳能（合肥）有限公司 | Reworking treatment method for poor screen printing sheet |
| CN105449036B (en) * | 2015-12-03 | 2017-10-03 | 通威太阳能（合肥）有限公司 | Reworking treatment method for poor screen printing sheet |
| CN105537181A (en) * | 2015-12-17 | 2016-05-04 | 欧贝黎新能源科技股份有限公司 | Cleaning device and method for screen printing defective pieces |
| CN108198874A (en) * | 2017-12-28 | 2018-06-22 | 南京日托光伏科技股份有限公司 | A kind of processing method of MWT battery silk-screen printing defective products |
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| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20120104 |