CN106784137B - A kind of device and method of cell piece PN junction edge isolation - Google Patents
A kind of device and method of cell piece PN junction edge isolation Download PDFInfo
- Publication number
- CN106784137B CN106784137B CN201611092437.8A CN201611092437A CN106784137B CN 106784137 B CN106784137 B CN 106784137B CN 201611092437 A CN201611092437 A CN 201611092437A CN 106784137 B CN106784137 B CN 106784137B
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- China
- Prior art keywords
- cell piece
- sandblasting
- edge isolation
- junction edge
- cavity
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- 238000002955 isolation Methods 0.000 title claims abstract description 53
- 238000000034 method Methods 0.000 title claims abstract description 26
- 238000005488 sandblasting Methods 0.000 claims abstract description 41
- 238000005498 polishing Methods 0.000 claims abstract description 10
- 239000002245 particle Substances 0.000 claims description 12
- PNEYBMLMFCGWSK-UHFFFAOYSA-N Alumina Chemical compound [O-2].[O-2].[O-2].[Al+3].[Al+3] PNEYBMLMFCGWSK-UHFFFAOYSA-N 0.000 claims description 9
- 238000005422 blasting Methods 0.000 claims description 7
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 claims description 6
- CDBYLPFSWZWCQE-UHFFFAOYSA-L Sodium Carbonate Chemical compound [Na+].[Na+].[O-]C([O-])=O CDBYLPFSWZWCQE-UHFFFAOYSA-L 0.000 claims description 6
- 239000000377 silicon dioxide Substances 0.000 claims description 3
- 229910000029 sodium carbonate Inorganic materials 0.000 claims description 3
- HBMJWWWQQXIZIP-UHFFFAOYSA-N silicon carbide Chemical compound [Si+]#[C-] HBMJWWWQQXIZIP-UHFFFAOYSA-N 0.000 claims 1
- 229910010271 silicon carbide Inorganic materials 0.000 claims 1
- 238000010586 diagram Methods 0.000 description 4
- 230000005611 electricity Effects 0.000 description 3
- 238000002360 preparation method Methods 0.000 description 3
- 239000000126 substance Substances 0.000 description 3
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 description 2
- 230000002411 adverse Effects 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 238000001020 plasma etching Methods 0.000 description 2
- 229910052710 silicon Inorganic materials 0.000 description 2
- 239000010703 silicon Substances 0.000 description 2
- 238000004140 cleaning Methods 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 238000009792 diffusion process Methods 0.000 description 1
- 238000003912 environmental pollution Methods 0.000 description 1
- 239000008187 granular material Substances 0.000 description 1
- 230000005484 gravity Effects 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000004064 recycling Methods 0.000 description 1
- 230000008929 regeneration Effects 0.000 description 1
- 238000011069 regeneration method Methods 0.000 description 1
- 238000011282 treatment Methods 0.000 description 1
- 238000009966 trimming Methods 0.000 description 1
- 238000004065 wastewater treatment Methods 0.000 description 1
Classifications
-
- H01L31/186—
-
- 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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- Dicing (AREA)
Abstract
This application discloses a kind of device and method of cell piece PN junction edge isolation, wherein, the device includes cavity, hold assembly and sandblasting component are provided in the cavity, the hold assembly is for fixed horizontal positioned cell piece, the ejection section of the sandblasting component is towards the side of the cell piece, and for the side for the cell piece of polishing, this method includes that cell piece is horizontally arranged and is fixed；Side sandblasting polishing to the cell piece.The device and method of above-mentioned cell piece PN junction edge isolation provided by the present application, can reduce the cost of removal cell piece PN junction edge isolation, and have the advantages that environmental-friendly.
Description
Technical field
The invention belongs to photovoltaic apparatus manufacturing technology fields, more particularly to a kind of device of cell piece PN junction edge isolation
And method.
Background technique
In cell piece preparation process, diffusion preparation emitter-base bandgap grading n-type region is needed, side is thus inevitably caused
Face and dorsal edge are spread, and need flash trimming knot and back knot in the subsequent process.
Method used in the prior art includes: chemical attack, Laser edge isolation and plasma etching.However, changing
Learning corrosion will lead to wastewater treatment difficulty, cause environmental pollution, the higher cost of Laser edge isolation, and reduce battery
Effective area reduces battery efficiency, and the mode of plasma etching requires high vacuum and auxiliary gas, and cost is also higher.
Summary of the invention
To solve the above problems, can be dropped the present invention provides a kind of device and method of cell piece PN junction edge isolation
The cost of low removal cell piece PN junction edge isolation, and have the advantages that environmental-friendly.
A kind of device of cell piece PN junction edge isolation provided by the invention, including cavity are provided with folder in the cavity
Component and sandblasting component are held, the hold assembly is for fixed horizontal positioned cell piece, the ejection section court of the sandblasting component
Side to the side of the cell piece, for the cell piece of polishing.
Preferably, in the device of above-mentioned cell piece PN junction edge isolation, the hold assembly includes for fixing battery
The upper plate and lower roof plate of piece, and the top of the upper plate and the lower part of the lower roof plate are provided with and are located along the same line
Shaft, the shaft connect with motor drive component.
Preferably, in the device of above-mentioned cell piece PN junction edge isolation, the side of the cavity is further fixed on jet portion
Part, for clearing up the shot blasting particles remained on the cell piece.
Preferably, in the device of above-mentioned cell piece PN junction edge isolation, the bottom surface of the cavity is additionally provided with sandblasting receipts
Collect component, the underface in sandblasting collecting part region between the sandblasting component and the hold assembly.
Preferably, in the device of above-mentioned cell piece PN junction edge isolation, the quantity of the sandblasting component is 2 to 4.
Preferably, in the device of above-mentioned cell piece PN junction edge isolation, the quantity of the air ejection member is 2 to 4.
Preferably, in the device of above-mentioned cell piece PN junction edge isolation, the upper plate and the lower roof plate are at least complete
Portion covers the cell piece.
A kind of method of cell piece PN junction edge isolation provided by the invention, comprising:
Cell piece is horizontally arranged and is fixed；
Side sandblasting polishing to the cell piece.
Preferably, in the method for above-mentioned cell piece PN junction edge isolation,
It further include that the cell piece is rotated with the speed of 0.1rad/min to 0.5rad/min.
Preferably, in the method for above-mentioned cell piece PN junction edge isolation,
The side sandblasting to the cell piece is polished are as follows: the aluminium oxide for being 5 μm to 20 μm using diameter range is carbonized
Silicon, silica or sodium carbonate particle polish to the side sandblasting of the cell piece.
As can be seen from the above description, the device and method of above-mentioned cell piece PN junction edge isolation provided by the invention, due to
Including cavity, hold assembly and sandblasting component are provided in the cavity, the hold assembly is for fixed horizontal positioned electricity
Pond piece, the ejection section of the sandblasting component is towards the side of the cell piece, for the side for the cell piece of polishing, therefore energy
Enough costs for reducing removal cell piece PN junction edge isolation, and have the advantages that environmental-friendly.
Detailed description of the invention
In order to more clearly explain the embodiment of the invention or the technical proposal in the existing technology, to embodiment or will show below
There is attached drawing needed in technical description to be briefly described, it should be apparent that, the accompanying drawings in the following description is only this
The embodiment of invention for those of ordinary skill in the art without creative efforts, can also basis
The attached drawing of offer obtains other attached drawings.
Fig. 1 is the schematic diagram of the device of the first cell piece PN junction edge isolation provided by the embodiments of the present application；
Fig. 2 is the schematic diagram of the method for the first cell piece PN junction edge isolation provided by the embodiments of the present application.
Specific embodiment
Core of the invention thought is to provide a kind of device and method of cell piece PN junction edge isolation, can reduce
Except the cost of cell piece PN junction edge isolation, and have the advantages that environmental-friendly.
Following will be combined with the drawings in the embodiments of the present invention, and technical solution in the embodiment of the present invention carries out clear, complete
Site preparation description, it is clear that described embodiments are only a part of the embodiments of the present invention, instead of all the embodiments.It is based on
Embodiment in the present invention, it is obtained by those of ordinary skill in the art without making creative efforts every other
Embodiment shall fall within the protection scope of the present invention.
As shown in FIG. 1, FIG. 1 is the application for the device of the first cell piece PN junction edge isolation provided by the embodiments of the present application
The schematic diagram of the device for the first cell piece PN junction edge isolation that embodiment provides.The device includes cavity 1, the inside cavity
All parts are accommodated with certain space, and hold assembly 2 and sandblasting component 3, the clamping part are provided in the cavity 1
Part 2 is for fixed horizontal positioned cell piece 4, that is to say, that cell piece fixation is in a horizontal position using the hold assembly, it can
Multi-disc cell piece is handled simultaneously, the side of all cell pieces is exposed, the ejection section of the sandblasting component 3 is towards the battery
The side of piece 4, the side for the cell piece 4 of polishing, it should be noted that constantly strike electricity using the particle ejected
The isolation at PN junction edge is realized so that the substance of cell piece side be struck in the side of pond piece.
As can be seen from the above description, the dress of the first above-mentioned cell piece PN junction edge isolation provided by the embodiments of the present application
It sets, due to including cavity, hold assembly and sandblasting component is provided in the cavity, the hold assembly is put for the level of fixing
The cell piece set, the ejection section of the sandblasting component is towards the side of the cell piece, for the side for the cell piece of polishing,
Therefore it can reduce the cost of removal cell piece PN junction edge isolation, and have the advantages that environmental-friendly.
The device of second of cell piece PN junction edge isolation provided by the embodiments of the present application is in the first above-mentioned cell piece
Further include following technical characteristic on the basis of the device of PN junction edge isolation:
It continues to refer to figure 1, the hold assembly includes the upper plate and lower roof plate for fixing cell piece, and the upper top
The top of plate and the lower part of the lower roof plate are provided with the shaft 7 being located along the same line, the shaft 7 and motor drive portion
Part connection.Wherein, it should be noted that shaft is to can guarantee four cell piece in this way to allow cell piece to rotate
Side can polish off.Cell piece is clipped in the middle, and two upper and lower planks are exactly to play the role of fixed clamp.
The device of the third cell piece PN junction edge isolation provided by the embodiments of the present application is in above-mentioned second of cell piece
Further include following technical characteristic on the basis of the device of PN junction edge isolation:
It continues to refer to figure 1, the side of the cavity is further fixed on air ejection member 5, remains in the cell piece for clearing up
On shot blasting particles.
Due to after sandblasting cell piece side or upper and lower surface may some shot blasting particles of remaining, this can be to rear afterflow
Journey adversely affects, and therefore, air ejection member is provided in the preferred embodiment, these shot blasting particles are removed, are conducive to
The cleaning of cell piece.
The device of 4th kind of cell piece PN junction edge isolation provided by the embodiments of the present application, be it is above-mentioned the first the third
In the device of cell piece PN junction edge isolation it is any on the basis of, further include following technical characteristic:
It continues to refer to figure 1, the bottom surface of the cavity 1 is additionally provided with sandblasting collecting part 6, the sandblasting collecting part 6
The underface in region between the sandblasting component 3 and the hold assembly 2.
In this case, the particle for being sprayed onto cell piece side is just able to enter the sandblasting collecting part under the effect of gravity
In, by the way that certain pipeline is arranged, it can be sent in sandblasting component and continue with, realize the regeneration of sandblasting, effectively
Save production cost.
The device of 5th kind of cell piece PN junction edge isolation provided by the embodiments of the present application, is in the first above-mentioned cell piece
Further include following technical characteristic on the basis of the device of PN junction edge isolation:
The quantity of the sandblasting component is 2 to 4.
It should be noted that can be according to the quantity of the cell piece of processing simultaneously, to be fitted to the quantity of sandblasting component
The adjustment of answering property, when simultaneously processing cell piece it is more when, the quantity of sandblasting component be also required to be arranged to it is more so that each electricity
The side of pond piece receives same grit blasting operation.
The device of 6th kind of cell piece PN junction edge isolation provided by the embodiments of the present application, is in the third above-mentioned cell piece
Further include following technical characteristic on the basis of the device of PN junction edge isolation:
The quantity of the air ejection member is 2 to 4.
It should be noted that the quantity of the air ejection member can be set according to the quantity of sandblasting component, it can be preferred
The quantity of the two is arranged to it is equal, this makes it possible to which each cell piece being grit blasted is cleared up in time correspondingly,
Its residual particles is avoided to have an adverse effect follow-up process.
The device of 7th kind of cell piece PN junction edge isolation provided by the embodiments of the present application, is in above-mentioned second of cell piece
Further include following technical characteristic on the basis of the device of PN junction edge isolation:
The upper plate and the lower roof plate at least all cover the cell piece.
Specifically, both sides grip size can be preferably 165mm*165mm when cell piece is having a size of 156mm*156mm,
It can guarantee that the surface of upper and lower two panels cell piece is not grit blasted damage in this way.
The method of the first cell piece PN junction edge isolation provided by the embodiments of the present application is as shown in Fig. 2, Fig. 2 is the application
The schematic diagram of the method for the first cell piece PN junction edge isolation that embodiment provides.This method comprises the following steps:
S1: cell piece is horizontally arranged and is fixed；
S2: it polishes the side sandblasting of the cell piece.
It should be noted that it is above-mentioned using sandblasting polishing come the method for carrying out PN junction edge isolation, step is simple, granular material
Expect at low cost, recyclable recycling, it is environmental-friendly not using chemical liquid, it is suitable for single side and double-side cell.
The method of second of cell piece PN junction edge isolation provided by the embodiments of the present application is in the first above-mentioned cell piece
Further include following technical characteristic on the basis of the method for PN junction edge isolation:
It further include that the cell piece is rotated with the speed of 0.1rad/min to 0.5rad/min.
The program is fixed sandblasting component, and rotates cell piece, realizes surrounding all blasting treatments of cell piece, thus real
The PN junction of existing each side is uniformly isolated.
The method of the third cell piece PN junction edge isolation provided by the embodiments of the present application is in above-mentioned second of cell piece
Further include following technical characteristic on the basis of the method for PN junction edge isolation:
The side sandblasting to the cell piece is polished are as follows: the aluminium oxide for being 5 μm to 20 μm using diameter range is carbonized
Silicon, silica or sodium carbonate particle polish to the side sandblasting of the cell piece.
The particle of these sizes and type can realize effective impact, work with higher to the side of cell piece
Efficiency.
The foregoing description of the disclosed embodiments enables those skilled in the art to implement or use the present invention.
Various modifications to these embodiments will be readily apparent to those skilled in the art, as defined herein
General Principle can be realized in other embodiments without departing from the spirit or scope of the present invention.Therefore, of the invention
It is not intended to be limited to the embodiments shown herein, and is to fit to and the principles and novel features disclosed herein phase one
The widest scope of cause.
Claims (3)
1. a kind of device of cell piece PN junction edge isolation, which is characterized in that including cavity, be provided with clamping part in the cavity
Part and sandblasting component, the hold assembly is for fixed horizontal positioned cell piece, and the ejection section of the sandblasting component is towards institute
The side for stating cell piece, the side for the cell piece of polishing；
The hold assembly includes the upper plate and lower roof plate for fixing cell piece, and the top of the upper plate and it is described under
The lower part of top plate is provided with the shaft being located along the same line, and the shaft is connect with motor drive component；
The upper plate and the lower roof plate at least all cover the cell piece；
The side of the cavity is further fixed on air ejection member, for clearing up the shot blasting particles remained on the cell piece；
The quantity of the sandblasting component is 2 to 4, and the quantity of the air ejection member is 2 to 4.
2. the device of cell piece PN junction edge isolation according to claim 1, which is characterized in that
The bottom surface of the cavity is additionally provided with sandblasting collecting part, and the sandblasting collecting part is located at the sandblasting component and described
The underface in region between hold assembly.
3. a kind of method of cell piece PN junction edge isolation, which is characterized in that
Cell piece is horizontally arranged and is fixed；
The cell piece is rotated with the speed of 0.1rad/min to 0.5rad/min；
Aluminium oxide, silicon carbide, silica or the sodium carbonate particle for being 5 μm to 20 μm using diameter range are to the side of the cell piece
Face sandblasting polishing.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611092437.8A CN106784137B (en) | 2016-11-30 | 2016-11-30 | A kind of device and method of cell piece PN junction edge isolation |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611092437.8A CN106784137B (en) | 2016-11-30 | 2016-11-30 | A kind of device and method of cell piece PN junction edge isolation |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN106784137A CN106784137A (en) | 2017-05-31 |
| CN106784137B true CN106784137B (en) | 2019-07-09 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201611092437.8A Active CN106784137B (en) | 2016-11-30 | 2016-11-30 | A kind of device and method of cell piece PN junction edge isolation |
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Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101204004A (en) * | 2005-03-22 | 2008-06-18 | 应用材料公司 | Scalable photovoltaic cell and solar panel manufacturing with improved wiring |
| CN202607501U (en) * | 2012-04-10 | 2012-12-19 | 上海良时喷涂设备有限公司 | Wet type silicon wafer sand blasting machine |
| CN103056783A (en) * | 2011-10-19 | 2013-04-24 | 浙江昱辉阳光能源有限公司 | Sand blasting equipment |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| NL207969A (en) * | 1955-06-28 | |||
| CN104841602B (en) * | 2015-06-03 | 2018-08-03 | 北京利玛环太科技有限公司 | Isolation structure and sandblasting on the injection apparatus of surface treatment spray all-in-one machine |
| CN205465760U (en) * | 2016-03-04 | 2016-08-17 | 昆山金之光电子科技有限公司 | Sand sprayer |
-
2016
- 2016-11-30 CN CN201611092437.8A patent/CN106784137B/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101204004A (en) * | 2005-03-22 | 2008-06-18 | 应用材料公司 | Scalable photovoltaic cell and solar panel manufacturing with improved wiring |
| CN103056783A (en) * | 2011-10-19 | 2013-04-24 | 浙江昱辉阳光能源有限公司 | Sand blasting equipment |
| CN202607501U (en) * | 2012-04-10 | 2012-12-19 | 上海良时喷涂设备有限公司 | Wet type silicon wafer sand blasting machine |
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| CN106784137A (en) | 2017-05-31 |
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