CN204210139U - For making printing screen plate and the solar cell of electrode of solar battery - Google Patents
For making printing screen plate and the solar cell of electrode of solar battery Download PDFInfo
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- CN204210139U CN204210139U CN201420644145.0U CN201420644145U CN204210139U CN 204210139 U CN204210139 U CN 204210139U CN 201420644145 U CN201420644145 U CN 201420644145U CN 204210139 U CN204210139 U CN 204210139U
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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 utility model provides a kind of printing screen plate for making electrode of solar battery and solar cell.This printing screen plate comprises grenadine layer and printing pattern layer.Printing pattern layer is arranged between grenadine layer and semiconductor substrate.Printing pattern layer has electrode feeding zone, occlusion part and at least one strong point, and wherein occlusion part is adjacent to electrode feeding zone, and the strong point is arranged in electrode feeding zone.Electrode feeding zone has first side and the second side relative to first side.First side has at least one first supporting lug, and second side has at least one second supporting lug.Arbitrary straight line between first side and second side have the first supporting lug, the second supporting lug, the strong point or its combination.Use the electrode of the solar cell made by this Printing screen to have uniform thickness, welding pulling force and increasing contact area of electrode structure and module termination electrode can be improved.
Description
Technical field
The utility model is about a kind of printing screen plate, particularly about a kind of printing screen plate for making electrode of solar battery.
Background technology
Screen painting method is the technology that making electrode of solar battery the most often uses always.Generally speaking, be placed in by electrocondution slurry on printing screen plate, electrocondution slurry brush enters and penetrates the grenadine layer of printing screen plate by recycling scraper, makes electrocondution slurry fall into the surface of semiconductor substrate, to form the bus electrode of solar cell.
But when using scraper, need to apply pressure and electrocondution slurry can be made to penetrate the grenadine layer of printing screen plate, therefore formed bus electrode can produce sunk surface, causes the welding pulling force of follow-up module termination electrode to reduce, and easily produces open circuit.In addition, because above-mentioned bus electrode has sunk surface, the contact area of bus electrode and module termination electrode is reduced, thus causes the poor electrical contact of bus electrode and module termination electrode, and reduce the yield of solar cell.
Therefore, the printing screen plate needing a kind of novelty at present badly and the solar cell using it to make, in order to solve the problem of the bus electrode surface indentation that traditional printing half tone and the solar cell that uses it to make produce.
Utility model content
Because prior art institute problems faced, the utility model discloses a kind of printing screen plate of novelty, the bus electrode of the solar cell made by this Printing screen is used to have uniform thickness, that can improve electrode structure and module termination electrode welds pulling force, and increase the contact area of bus electrode and module termination electrode, to promote the in electrical contact of bus electrode and module termination electrode, and then promote the qualification rate of solar cell.
One side of the present utility model is to provide a kind of printing screen plate for making electrode of solar battery.This printing screen plate comprises grenadine layer and printing pattern layer.
Printing pattern layer is arranged between grenadine layer and semiconductor substrate.Printing pattern layer has electrode feeding zone, occlusion part and at least one strong point, and wherein occlusion part is adjacent to electrode feeding zone, and the strong point is arranged in electrode feeding zone.
Electrode feeding zone has first side and the second side relative to first side.First side has at least one first supporting lug be made up of occlusion part, and second side has at least one second supporting lug be made up of occlusion part.Arbitrary straight line between first side and second side have the first supporting lug, the second supporting lug, the strong point or its combination.
According to embodiment of the present utility model, above-mentioned electrode feeding zone comprises multiple bus electrode feeding zone, multiple finger electrode feeding zone or its combination.
According to embodiment of the present utility model, above-mentioned all bus electrode feeding zones have multiple first section and multiple second section, and all first sections and all second sections are alternately arranged with each other and connect.
According to embodiment of the present utility model, all first sections of above-mentioned bus electrode feeding zone have the first bus electrode feeding zone width.According to embodiment of the present utility model, above-mentioned first bus electrode feeding zone width is 0.5 ~ 2.5 millimeter.
According to embodiment of the present utility model, all second sections of above-mentioned bus electrode feeding zone have the second bus electrode feeding zone width.According to embodiment of the present utility model, above-mentioned second bus electrode feeding zone width is between 0.05 ~ 2 millimeter.
According to embodiment of the present utility model, at least one in all bus electrode feeding zones of above-mentioned printing pattern layer has the first feeding zone and one second feeding zone, and the first feeding zone is not connected with the second feeding zone.
According to embodiment of the present utility model, above-mentioned all bus electrode feeding zones extend along first direction, and all finger electrode feeding zones extend along second direction, and one end of all finger electrode feeding zones is connected with all bus electrode feeding zones.
According to embodiment of the present utility model, the width of above-mentioned all finger electrode feeding zones is 0.02 ~ 0.2 micron.
According to embodiment of the present utility model, above-mentioned first supporting lug, the second supporting lug, the strong point have geometric figure.
According to embodiment of the present utility model, above-mentioned geometric figure comprises triangle, quadrangle, pentagon, hexagon, circle, strip or its combination.
According to embodiment of the present utility model, the diameter of above-mentioned all strong points is 0.05 ~ 2.4 millimeter.
According to embodiment of the present utility model, the above-mentioned every two adjacent strong point, the strong point and the first supporting lugs, the strong point and the second supporting lug or its combine between distance be 0.05 ~ 2.4 millimeter.
Another aspect of the present utility model is to provide a kind of solar cell.This solar cell comprises semiconductor substrate, upper electrode arrangement and lower electrode arrangement.
Semiconductor substrate has upper surface and the lower surface relative to upper surface.Upper electrode arrangement is positioned at the upper surface of semiconductor substrate, and is utilize above-mentioned printing screen plate to be formed.Upper electrode arrangement has first side and the second side relative to first side, and wherein first side has at least one first recess, and second side has at least one second recess, and upper electrode arrangement has at least one first shrinkage pool.Arbitrary straight line between first side and second side have the first recess, the second recess, the first shrinkage pool or its combination.
Lower electrode arrangement is positioned at the lower surface of semiconductor substrate, and is utilize above-mentioned printing screen plate to be formed.Lower electrode arrangement has the 3rd side and the four side relative to the 3rd side, and wherein the 3rd side has at least one 3rd recess, and four side has at least one 4th recess, and lower electrode arrangement has at least one second shrinkage pool.Arbitrary straight line between the 3rd side and four side have the 3rd recess, the 4th recess, the second shrinkage pool or its combination.
According to embodiment of the present utility model, above-mentioned upper electrode arrangement comprises many upper bus electrodes, many upper finger electrodes or its combination, and lower electrode arrangement comprises many lower bus electrodes, many lower finger electrodes or its combination.
According to embodiment of the present utility model, above-mentioned all upper bus electrodes and all lower bus electrodes extend along first direction, all upper finger electrodes and all lower finger electrodes extend along second direction, and one end of all upper finger electrodes and all lower finger electrodes is connected with all upper bus electrodes or all lower bus electrodes respectively, wherein second direction and first direction different.
According to embodiment of the present utility model, above-mentioned all upper bus electrodes, all lower bus electrodes or its combination have multiple first section and multiple second section, and all first sections and all second sections are alternately arranged with each other and connect.
According to embodiment of the present utility model, above-mentioned all first sections have bus electrode width on first.According to embodiment of the present utility model, on above-mentioned first, bus electrode width is 0.5 ~ 2.5 millimeter.
According to embodiment of the present utility model, above-mentioned all second sections have bus electrode width on second.According to embodiment of the present utility model, on above-mentioned second, bus electrode width is between 0.05 ~ 2 millimeter.
According to embodiment of the present utility model, in above-mentioned all upper bus electrodes, all lower bus electrodes or its combination, at least one there is first section of confluxing and second section of confluxing, and first section of confluxing is not connected with second section of confluxing.
According to embodiment of the present utility model, above-mentioned first recess, the second recess, the 3rd recess, the 4th recess, the first shrinkage pool and the second shrinkage pool have a geometric figure separately.
According to embodiment of the present utility model, above-mentioned geometric figure comprises triangle, quadrangle, pentagon, hexagon, circle, strip or its combination.
According to embodiment of the present utility model, the aperture of above-mentioned first shrinkage pool and the second shrinkage pool is independently 0.05 ~ 2.4 millimeter separately.
According to embodiment of the present utility model, above-mentioned every two adjacent the first shrinkage pool, the first shrinkage pool and the first recesses, the first shrinkage pool and the second recess or its combine between distance be 0.05 ~ 2.4 millimeter.
According to embodiment of the present utility model, above-mentioned every two adjacent the second shrinkage pool, the second shrinkage pool and the 3rd recesses, the second shrinkage pool and the 4th recess or its combine between distance be 0.05 ~ 2.4 millimeter.
According to embodiment of the present utility model, above-mentioned all upper finger electrodes, lower finger electrode or its width combined are 0.02 ~ 0.2 micron.
Accompanying drawing explanation
Fig. 1 is the top view of a kind of traditional printing screen plate 100 illustrated;
The partial enlarged drawing of the printing screen plate 100 that Fig. 2 illustrates for Fig. 1;
Fig. 3 ~ 4 form the stage schematic diagram of the bus electrode of solar cell for the printing screen plate 100 utilizing Fig. 1 to illustrate;
The profile of the bus electrode of the solar cell that Fig. 5 is formed for the printing screen plate 100 utilizing Fig. 1 to illustrate;
Fig. 6 is the top view of the printing screen plate 200 illustrated according to an embodiment of the present utility model;
The partial enlarged drawing of the printing screen plate 200 that Fig. 7 illustrates for Fig. 6;
Fig. 8 ~ 9 form the stage schematic diagram of the bus electrode of solar cell for the printing screen plate 200 utilizing Fig. 6 to illustrate;
The profile of the bus electrode of the solar cell that Figure 10 is formed for the printing screen plate 200 utilizing Fig. 6 to illustrate;
Figure 11 is the top view of the solar cell 300a illustrated according to an embodiment of the present utility model;
Figure 12 is the lower view of the solar cell 300b illustrated according to embodiment of the present utility model;
Figure 13 is the top view of the printing screen plate 400 illustrated according to an embodiment of the present utility model;
Figure 14 is the top view of the solar cell 500a illustrated according to an embodiment of the present utility model;
Figure 15 is the lower view of the solar cell 500b illustrated according to an embodiment of the present utility model;
Figure 16 is the top view of the printing screen plate 600 illustrated according to an embodiment of the present utility model;
Figure 17 is the top view of the solar cell 700 illustrated according to an embodiment of the present utility model;
Figure 18 is the top view of the printing screen plate 800 illustrated according to an embodiment of the present utility model; And
Figure 19 is the top view of the solar cell 900 illustrated according to an embodiment of the present utility model.
Detailed description of the invention
Then coordinate accompanying drawing to describe the utility model in detail with embodiment, at accompanying drawing or in describing, similar or identical part uses identical symbol or numbering.In the accompanying drawings, the shape of embodiment or thickness may expand, and to simplify or convenient sign, and in accompanying drawing, the part of element will with text description.Apprehensible, the element not illustrating or do not describe can be the various patterns be familiar with known to this those skilled in the art.
Term as used herein is only object for describing specific embodiment and is not intended to limit the utility model.As used herein, singulative " one " (a, an) and " being somebody's turn to do " (the) is intended to also comprise plural form, clearly indicates unless separately had herein.Should understand further, when using in this manual, term " comprises " (comprises and/or comprising) and specifies the feature described in existing, integer, step, running, element and/or component, but does not get rid of existence or add one or more further feature, integer, step, running, element, component and/or its group.Illustrate with reference to the cross section schematically illustrated for idealized embodiments of the present utility model (and intermediate structure) herein and describe embodiment of the present utility model.So, expection is departed from the change due to (such as) manufacturing technology and/or tolerance of these shapes illustrated by us.Therefore, embodiment of the present utility model should be interpreted as the specific region shape illustrated by being limited to herein, and will comprise and result from the alteration of form that (such as) manufacture, and region illustrated in these figure is essentially schematically, and its shape is not intended to the true form in the region of devices illustrated and is not intended to limit category of the present utility model.
Fig. 1 is the top view of a kind of traditional printing screen plate 100 illustrated.In FIG, printing screen plate 100 has grenadine layer 110 and printing pattern layer 120.Printing pattern layer 120 is arranged on grenadine layer 110, and have bus electrode feeding zone 122 and occlusion part 124.Occlusion part 124 is adjacent to bus electrode feeding zone 122.
Then please refer to Fig. 2.Fig. 2 is the partial enlarged drawing of region A in Fig. 1.In fig. 2, printing pattern layer 120 is arranged on grenadine layer 110, and have bus electrode feeding zone 122 and occlusion part 124.Occlusion part 124 is adjacent to bus electrode feeding zone 122.Then, the bus electrode utilizing printing screen plate 100 to form solar cell is described along hatching B-B ', please refer to Fig. 3, Fig. 4.
Fig. 3 ~ 4 form the stage schematic diagram of the bus electrode of solar cell for the printing screen plate 100 utilizing Fig. 1 to illustrate.In figure 3, Printing screen 100 is placed on semiconductor substrate 130, and wherein printing pattern layer 120 is between grenadine layer 110 and semiconductor substrate 130.Then, be placed in by electrocondution slurry 140a on grenadine layer 110, electrocondution slurry 140a is penetrated grenadine layer 110 by recycling scraper 150, and electrocondution slurry 140b can drop in the bus electrode feeding zone 122 of printing pattern layer 120, to form bus electrode 160a, as shown in Figure 4.It should be noted that occlusion part 124 is the downforce in order to supporting network layer 110 and scraper 150, but because there is no supporter, so the depressed phenomenon of grenadine layer 110 can be produced in the bus electrode feeding zone 122 of printing pattern layer 120.When grenadine layer 110 produces depression, the bus electrode 160b formed also can produce the identical sunk surface of profile, and has obvious cup depth (H), as shown in Figure 5.
The sunk surface that above-mentioned traditional bus electrode has reduces causing the welding pulling force of follow-up module termination electrode, and easily produces open circuit.In addition, because above-mentioned bus electrode has sunk surface, the contact area of bus electrode and module termination electrode is reduced, thus causes the poor electrical contact of bus electrode and module termination electrode, and reduce the yield of solar cell.
For the surface dimple phenomenon that the electrode solving above-mentioned conventional solar cell produces, embodiment of the present utility model a kind of printing screen plate with the strong point is provided.The bus electrode of the solar cell made by printing screen plate utilizing embodiment of the present utility model to provide has uniform thickness, that can improve electrode structure and module termination electrode welds pulling force, and increase the contact area of bus electrode and module termination electrode, to promote the in electrical contact of bus electrode and module termination electrode, and then promote the yield of solar cell.
Fig. 6 is the top view of the printing screen plate 200 illustrated according to an embodiment of the present utility model.In figure 6, printing screen plate 200 comprises grenadine layer 210 and printing pattern layer 220.
Printing pattern layer 220 is arranged on grenadine layer 210.Printing pattern layer 220 has electrode feeding zone 222, occlusion part 224 and at least one strong point 226, and wherein occlusion part 224 is adjacent to electrode feeding zone 222, and the strong point 226 is arranged in electrode feeding zone 222.
In figure 6, electrode feeding zone 222 has multiple bus electrode feeding zone and multiple finger electrode feeding zone, and one end of finger electrode feeding zone is connected with bus electrode feeding zone, wherein bus electrode feeding zone extends along first direction 201, and finger electrode feeding zone extends along second direction 202.According to embodiment of the present utility model, the width of above-mentioned all finger electrode feeding zones is 0.02 ~ 0.2 micron.According to embodiment of the present utility model, first direction 201 and second direction 202 are in vertical.According to embodiment of the present utility model, the angle between first direction 201 and second direction 202 is greater than 0 degree and is less than 90 degree.
Fig. 7 is the partial enlarged drawing of region C in Fig. 6.In the figure 7, electrode feeding zone 222 has first side 221 and the second side 223 relative to first side 221.First side 221 has at least one first supporting lug 225 be made up of occlusion part 224, and second side 223 has at least one second supporting lug 227 be made up of occlusion part 224.Arbitrary straight line between first side 221 and second side 223 have the first supporting lug 225, second supporting lug 227, the strong point 226 or its combination.According to embodiment of the present utility model, along arbitrary straight line of first direction 201 extension having the first supporting lug 225, second supporting lug 227, the strong point 226 or its combination between first side 221 and second side 223.
According to embodiment of the present utility model, above-mentioned first supporting lug 225, second supporting lug 227, the strong point 226 have geometric figure.According to embodiment of the present utility model, above-mentioned geometric figure comprises triangle, quadrangle, pentagon, hexagon, circle, strip or its combination.
According to embodiment of the present utility model, the diameter (r1) of above-mentioned all strong points 226 is 0.05 ~ 2.4 millimeter.According to embodiment of the present utility model, the above-mentioned every two adjacent strong point 226, the strong point 226 and the first supporting lugs 225, the strong point 226 and the second supporting lug 227 or its combine between distance (d1) be 0.05 ~ 2.4 millimeter.
Then, the bus electrode utilizing printing screen plate 200 to form solar cell is described along hatching D-D ', please refer to Fig. 8, Fig. 9.Fig. 8 ~ 9 form the stage schematic diagram of the bus electrode of solar cell for the printing screen plate 200 utilizing Fig. 6 to illustrate.
In fig. 8, Printing screen 200 is placed on semiconductor substrate 230, and wherein printing pattern layer 220 is between grenadine layer 210 and semiconductor substrate 230.Then, be placed in by electrocondution slurry 240a on grenadine layer 210, electrocondution slurry 240a is penetrated grenadine layer 210 by recycling scraper 250, and electrocondution slurry 240b can drop in the bus electrode feeding zone 222 of printing pattern layer 220, to form bus electrode 260a, as shown in Figure 9.
It should be noted that occlusion part 224 and the strong point 226 are the downforce in order to supporting network layer 210 and scraper 250, therefore grenadine layer 210 can not produce depressed phenomenon.Then please refer to Figure 10, the profile of the bus electrode of the solar cell that Figure 10 is formed for the printing screen plate 200 utilizing Fig. 6 to illustrate.When grenadine layer 210 does not produce depression, the flat surfaces that the bus electrode 260b formed has.
Figure 11 is the top view of the solar cell 300a illustrated according to an embodiment of the present utility model.In fig. 11, solar cell 300a comprises semiconductor substrate 310, upper electrode arrangement 303 and lower electrode arrangement (not illustrating).
Semiconductor substrate 310 has upper surface 312 and the lower surface (not illustrating) relative to upper surface 312.Upper electrode arrangement 303 is positioned at the upper surface 312 of semiconductor substrate 310, and is utilize printing screen plate 200 as shown in Figure 6 to be formed.Upper electrode arrangement 303 has first side 321 and the second side 323 relative to first side 321, wherein first side 321 has at least one first recess 325, and second side 323 has at least one second recess 327, and upper electrode arrangement 303 has at least one first shrinkage pool 324.Arbitrary straight line between first side 321 and second side 323 have the first recess 325, second recess 327, first shrinkage pool 324 or its combination.
According to embodiment of the present utility model, the first recess 325, second recess 327 and the first shrinkage pool 324 have a geometric figure separately.According to embodiment of the present utility model, above-mentioned geometric figure comprises triangle, quadrangle, pentagon, hexagon, circle, strip or its combination.
According to embodiment of the present utility model, the aperture of the first shrinkage pool 324 is 0.05 ~ 2.4 millimeter separately.According to embodiment of the present utility model, above-mentioned every two adjacent the first shrinkage pool 324, first shrinkage pools 324 and the first recess 325, first shrinkage pool 324 and the second recess 327 or its combine between distance be 0.05 ~ 2.4 millimeter.
According to embodiment of the present utility model, upper electrode arrangement 303 comprises many upper bus electrodes 320, many upper finger electrodes 340 or its combination.According to embodiment of the present utility model, all upper bus electrodes 320 extend along first direction 301, all upper finger electrodes 340 extend along second direction 302, and one end of all upper finger electrodes 340 is connected with all upper bus electrodes 320, and wherein second direction 302 is different with first direction 301.According to embodiment of the present utility model, the width of above-mentioned all upper finger electrodes 340 is 0.02 ~ 0.2 micron.
According to embodiment of the present utility model, the lower electrode arrangement (not illustrating) of solar cell 300a is identical with upper electrode arrangement 303.
Figure 12 is the lower view of the solar cell 300b illustrated according to embodiment of the present utility model.In fig. 12, solar cell 300b comprises semiconductor substrate 310, upper electrode arrangement (not illustrating) and lower electrode arrangement 330.According to embodiment of the present utility model, the upper electrode arrangement (not illustrating) of solar cell 300b is identical with the upper electrode arrangement 303 of solar cell 300a.
Semiconductor substrate 310 has upper surface (not illustrating) and the lower surface 314 relative to upper surface (not illustrating).Lower electrode arrangement 330 is positioned at the lower surface 314 of semiconductor substrate 310.Lower electrode arrangement 330 has the 3rd side 331 and the four side 343 relative to the 3rd side 331, wherein the 3rd side 331 has at least one 3rd recess 335, and four side 343 has at least one 4th recess 337, and lower electrode arrangement 330 has at least one second shrinkage pool 334.Arbitrary straight line between the 3rd side 331 and four side 343 have the 3rd recess 335, the 4th recess 337, second shrinkage pool 334 or its combination.
According to embodiment of the present utility model, the 3rd recess 335, the 4th recess 337 and the second shrinkage pool 334 have a geometric figure separately.According to embodiment of the present utility model, above-mentioned geometric figure comprises triangle, quadrangle, pentagon, hexagon, circle, strip or its combination.
According to embodiment of the present utility model, the aperture of the second shrinkage pool 334 is 0.05 ~ 2.4 millimeter separately.According to embodiment of the present utility model, above-mentioned every two adjacent the second shrinkage pool 334, second shrinkage pools 334 and the 3rd recess 335, second shrinkage pool 334 and the 4th recess 337 or its combine between distance be 0.05 ~ 2.4 millimeter.
According to embodiment of the present utility model, lower electrode arrangement 330 comprises many lower bus electrodes.According to embodiment of the present utility model, all lower bus electrodes extend along first direction 301.
Figure 13 is the top view of the printing screen plate 400 illustrated according to an embodiment of the present utility model.In fig. 13, printing screen plate 400 comprises grenadine layer 410 and printing pattern layer 420.
Printing pattern layer 420 is arranged on grenadine layer 410.Printing pattern layer 420 has electrode feeding zone 422, occlusion part 424 and at least one strong point 426, and wherein occlusion part 424 is adjacent to electrode feeding zone 422, and the strong point 426 is arranged in electrode feeding zone 422.
In fig. 13, electrode feeding zone 422 has multiple bus electrode feeding zone and multiple finger electrode feeding zone, and one end of finger electrode feeding zone is connected with bus electrode feeding zone, wherein bus electrode feeding zone extends along first direction 401, and finger electrode feeding zone extends along second direction 402.According to embodiment of the present utility model, the width of above-mentioned all finger electrode feeding zones is 0.02 ~ 0.2 micron.According to embodiment of the present utility model, first direction 401 and second direction 402 are in vertical.According to embodiment of the present utility model, the angle between first direction 401 and second direction 402 is greater than 0 degree and is less than 90 degree.
Printing screen plate 400 shown in Figure 13 is similar to the printing screen plate 200 shown in Fig. 6, but its difference part is, all bus electrode feeding zones 422 of the printing screen plate 400 shown in Figure 13 have multiple first section 432 and multiple second section 434, and all first sections 432 and all second sections 434 are alternately arranged with each other and connect.According to embodiment of the present utility model, all first sections 432 of bus electrode feeding zone 422 have the first bus electrode feeding zone width (W1).According to embodiment of the present utility model, the first bus electrode feeding zone width (W1) is 0.5 ~ 2.5 millimeter.According to embodiment of the present utility model, all second sections 434 of bus electrode feeding zone 422 have the second bus electrode feeding zone width (W2).According to embodiment of the present utility model, above-mentioned second bus electrode feeding zone width (W2) is between 0.05 ~ 2 millimeter.
Figure 14 is the top view of the solar cell 500a illustrated according to an embodiment of the present utility model.In fig. 14, solar cell 500a comprises semiconductor substrate 510, upper electrode arrangement 503 and lower electrode arrangement (not illustrating).
Semiconductor substrate 510 has upper surface 512 and the lower surface (not illustrating) relative to upper surface 512.Upper electrode arrangement 503 is positioned at the upper surface 512 of semiconductor substrate 510, and is utilize printing screen plate 400 as shown in fig. 13 that to be formed.Upper electrode arrangement 503 has first side 521 and the second side 523 relative to first side 521, wherein first side 521 has at least one first recess 525, and second side 523 has at least one second recess 526, and upper electrode arrangement 503 has at least one first shrinkage pool 524.Arbitrary straight line between first side 521 and second side 523 have the first recess 525, second recess 526, first shrinkage pool 524 or its combination.
According to embodiment of the present utility model, the first recess 525, second recess 526 and the first shrinkage pool 524 have a geometric figure separately.According to embodiment of the present utility model, above-mentioned geometric figure comprises triangle, quadrangle, pentagon, hexagon, circle, strip or its combination.
According to embodiment of the present utility model, the aperture of the first shrinkage pool 524 is 0.05 ~ 2.4 millimeter separately.According to embodiment of the present utility model, above-mentioned every two adjacent the first shrinkage pool 524, first shrinkage pools 524 and the first recess 525, first shrinkage pool 524 and the second recess 526 or its combine between distance be 0.05 ~ 2.4 millimeter.
According to embodiment of the present utility model, upper electrode arrangement 503 comprises many upper bus electrodes 520, many upper finger electrodes 540 or its combination.According to embodiment of the present utility model, all upper bus electrodes 520 extend along first direction 501, all upper finger electrodes 540 extend along second direction 502, and one end of all upper finger electrodes 540 is connected with all upper bus electrodes 520, and wherein second direction 502 is different with first direction 501.According to embodiment of the present utility model, the width of above-mentioned all upper finger electrodes 540 is 0.02 ~ 0.2 micron.
The solar cell 300a shown in solar cell 500a and Figure 11 shown in Figure 14 is similar, but its difference part is, the all upper bus electrode 520 of the solar cell 500a shown in Figure 14 has multiple first section 542 and multiple second section 544, and all first sections 542 and all second sections 544 are alternately arranged with each other and connect.According to embodiment of the present utility model, all first sections 542 of upper bus electrode 520 have the first bus electrode width (W1).According to embodiment of the present utility model, the first bus electrode width (W1) is 0.5 ~ 2.5 millimeter.According to embodiment of the present utility model, all second sections 544 of upper bus electrode 520 have the second bus electrode width (W2).According to embodiment of the present utility model, above-mentioned second bus electrode width (W2) is between 0.05 ~ 2 millimeter.
According to embodiment of the present utility model, the lower electrode arrangement (not illustrating) of solar cell 500a is identical with upper electrode arrangement 503.
Figure 15 is the lower view of the solar cell 500b illustrated according to embodiment of the present utility model.In fig .15, solar cell 500b comprises semiconductor substrate 510, upper electrode arrangement (not illustrating) and lower electrode arrangement 530.According to embodiment of the present utility model, the upper electrode arrangement (not illustrating) of solar cell 500b is identical with the upper electrode arrangement 503 of solar cell 500a.
Semiconductor substrate 510 has upper surface (not illustrating) and the lower surface 514 relative to upper surface (not illustrating).Lower electrode arrangement 530 is positioned at the lower surface 514 of semiconductor substrate 510.Lower electrode arrangement 530 has the 3rd side 531 and the four side 533 relative to the 3rd side 531, wherein the 3rd side 531 has at least one 3rd recess 535, and four side 533 has at least one 4th recess 537, and lower electrode arrangement 530 has at least one second shrinkage pool 534.Arbitrary straight line between the 3rd side 531 and four side 533 have the 3rd recess 535, the 4th recess 537, second shrinkage pool 534 or its combination.
According to embodiment of the present utility model, the 3rd recess 535, the 4th recess 537 and the second shrinkage pool 534 have a geometric figure separately.According to embodiment of the present utility model, above-mentioned geometric figure comprises triangle, quadrangle, pentagon, hexagon, circle, strip or its combination.
According to embodiment of the present utility model, the aperture of the second shrinkage pool 534 is 0.05 ~ 2.4 millimeter separately.According to embodiment of the present utility model, above-mentioned every two adjacent the second shrinkage pool 534, second shrinkage pools 534 and the 3rd recess 535, second shrinkage pool 534 and the 4th recess 537 or its combine between distance be 0.05 ~ 2.4 millimeter.
According to embodiment of the present utility model, lower electrode arrangement 530 comprises many lower bus electrodes.According to embodiment of the present utility model, all lower bus electrodes extend along first direction 501.
The solar cell 300b shown in solar cell 500b and Figure 12 shown in Figure 15 is similar, but its difference part is, the all lower bus electrode of the solar cell 500b shown in Figure 15 has multiple first section 542 and multiple second section 544, and all first sections 542 and all second sections 544 are alternately arranged with each other and connect.According to embodiment of the present utility model, all first sections 542 of lower bus electrode have the first bus electrode width (W1).According to embodiment of the present utility model, the first bus electrode width (W1) is 0.5 ~ 2.5 millimeter.According to embodiment of the present utility model, all second sections 544 of lower bus electrode have the second bus electrode width (W2).According to embodiment of the present utility model, above-mentioned second bus electrode width (W2) is between 0.05 ~ 2 millimeter.
Figure 16 is the top view of the printing screen plate 600 illustrated according to an embodiment of the present utility model.In figure 16, printing screen plate 600 comprises grenadine layer 610 and printing pattern layer 620.
Printing pattern layer 620 is arranged on grenadine layer 610.Printing pattern layer 620 has electrode feeding zone 622, occlusion part 624 and at least one strong point 626, and wherein occlusion part 624 is adjacent to electrode feeding zone 622, and the strong point 626 is arranged in electrode feeding zone 622.
In figure 16, electrode feeding zone 622 has multiple bus electrode feeding zone and multiple finger electrode feeding zone, and one end of finger electrode feeding zone is connected with bus electrode feeding zone, wherein bus electrode feeding zone extends along first direction 601, and finger electrode feeding zone extends along second direction 602.According to embodiment of the present utility model, the width of above-mentioned all finger electrode feeding zones is 0.02 ~ 0.2 micron.According to embodiment of the present utility model, first direction 601 and second direction 602 are in vertical.According to embodiment of the present utility model, the angle between first direction 601 and second direction 602 is greater than 0 degree and is less than 90 degree.
Printing screen plate 600 shown in Figure 16 is similar to the printing screen plate 400 shown in Figure 13.All bus electrode feeding zones 622 of the printing screen plate 600 shown in Figure 16 have multiple first section 632 and multiple second section 634, and all first sections 632 and all second sections 634 are alternately arranged with each other and connect.According to embodiment of the present utility model, all first sections 632 of bus electrode feeding zone 622 have the first bus electrode feeding zone width (W1).According to embodiment of the present utility model, the first bus electrode feeding zone width (W1) is 0.5 ~ 2.5 millimeter.According to embodiment of the present utility model, all second sections 634 of bus electrode feeding zone 622 have the second bus electrode feeding zone width (W2).According to embodiment of the present utility model, above-mentioned second bus electrode feeding zone width (W2) is between 0.05 ~ 2 millimeter.
Printing screen plate 600 shown in Figure 16 is with the difference part of the printing screen plate 400 shown in Figure 13, at least one in all bus electrode feeding zones of the printing pattern layer 620 of the printing screen plate 600 shown in Figure 16 has the first feeding zone 642 and one second feeding zone 644, and the first feeding zone 642 is not connected with the second feeding zone 644.
Figure 17 is the top view of the solar cell 700 illustrated according to an embodiment of the present utility model.In fig. 17, solar cell 700 comprises semiconductor substrate 710, upper electrode arrangement 703 and lower electrode arrangement (not illustrating).
Semiconductor substrate 710 has upper surface 712 and the lower surface (not illustrating) relative to upper surface 712.Upper electrode arrangement 703 is positioned at the upper surface 712 of semiconductor substrate 710, and is utilize printing screen plate 600 as shown in figure 16 to be formed.Upper electrode arrangement 703 has first side 721 and the second side 723 relative to first side 721, wherein first side 721 has at least one first recess 725, and second side 723 has at least one second recess 727, and upper electrode arrangement 703 has at least one first shrinkage pool 724.Arbitrary straight line between first side 721 and second side 723 have the first recess 725, second recess 727, first shrinkage pool 724 or its combination.
According to embodiment of the present utility model, the first recess 725, second recess 727 and the first shrinkage pool 724 have a geometric figure separately.According to embodiment of the present utility model, above-mentioned geometric figure comprises triangle, quadrangle, pentagon, hexagon, circle, strip or its combination.
According to embodiment of the present utility model, the aperture of the first shrinkage pool 724 is 0.05 ~ 2.4 millimeter separately.According to embodiment of the present utility model, above-mentioned every two adjacent the first shrinkage pool 724, first shrinkage pools 724 and the first recess 725, first shrinkage pool 724 and the second recess 727 or its combine between distance be 0.05 ~ 2.4 millimeter.
According to embodiment of the present utility model, upper electrode arrangement 703 comprises many upper bus electrodes 720, many upper finger electrodes 740 or its combination.According to embodiment of the present utility model, all upper bus electrodes 720 extend along first direction 701, all upper finger electrodes 740 extend along second direction 702, and one end of all upper finger electrodes 740 is connected with all upper bus electrodes 720, and wherein second direction 702 is different with first direction 701.According to embodiment of the present utility model, the width of above-mentioned all upper finger electrodes 740 is 0.02 ~ 0.2 micron.
Solar cell 700 shown in Figure 17 is similar to the solar cell 500a shown in Figure 14.The all upper bus electrode 720 of the solar cell 700 shown in Figure 17 has multiple first section 742 and multiple second section 744, and all first sections 742 and all second sections 744 are alternately arranged with each other and connect.According to embodiment of the present utility model, all first sections 742 of upper bus electrode 720 have the first bus electrode width (W1).According to embodiment of the present utility model, the first bus electrode width (W1) is 0.5 ~ 2.5 millimeter.According to embodiment of the present utility model, all second sections 744 of upper bus electrode 720 have the second bus electrode width (W2).According to embodiment of the present utility model, above-mentioned second bus electrode width (W2) is between 0.05 ~ 2 millimeter.
Solar cell 700 shown in Figure 17 is with the difference part of the solar cell 500a shown in Figure 14, at least one in all upper bus electrode 720 of the solar cell 700 shown in Figure 17 has the first section of confluxing 752 and the second section of confluxing 754, and the first section of confluxing 752 is not connected with the second section of confluxing 754.According to embodiment of the present utility model, the lower electrode arrangement (not illustrating) of solar cell 700 is identical with upper electrode arrangement 703.
Figure 18 is the top view of the printing screen plate 800 illustrated according to an embodiment of the present utility model.In figure 18, printing screen plate 800 comprises grenadine layer 810 and printing pattern layer 820.
Printing pattern layer 820 is arranged on grenadine layer 810.Printing pattern layer 820 has electrode feeding zone 822, occlusion part 824 and at least one strong point 826, and wherein occlusion part 824 is adjacent to electrode feeding zone 822, and the strong point 826 is arranged in electrode feeding zone 822.
In figure 18, electrode feeding zone 822 has multiple bus electrode feeding zone and multiple finger electrode feeding zone, and one end of finger electrode feeding zone is connected with bus electrode feeding zone, wherein bus electrode feeding zone extends along first direction 801, and finger electrode feeding zone extends along second direction 802.According to embodiment of the present utility model, the width of above-mentioned all finger electrode feeding zones is 0.02 ~ 0.2 micron.According to embodiment of the present utility model, first direction 801 and second direction 802 are in vertical.According to embodiment of the present utility model, the angle between first direction 801 and second direction 802 is greater than 0 degree and is less than 90 degree.
Printing screen plate 800 shown in Figure 18 is similar to the printing screen plate 600 shown in Figure 16.All bus electrode feeding zones of the printing screen plate 800 shown in Figure 18 have multiple first section 832 and multiple second section 834.Printing screen plate 800 shown in Figure 18 is with the difference part of the printing screen plate 600 shown in Figure 16, and the printing screen plate 800 shown in Figure 18 has the pattern unit be made up of two the first sections 832 and second section 834, and is sequentially formed by connecting.According to embodiment of the present utility model, all first sections 832 of bus electrode feeding zone have the first bus electrode feeding zone width (W1).According to embodiment of the present utility model, the first bus electrode feeding zone width (W1) is 0.5 ~ 2.5 millimeter.According to embodiment of the present utility model, all second sections 834 of bus electrode feeding zone 822 have the second bus electrode feeding zone width (W2).According to embodiment of the present utility model, above-mentioned second bus electrode feeding zone width (W2) is between 0.05 ~ 2 millimeter.
In addition, at least one in all bus electrode feeding zones 822 of the printing pattern layer 820 of the printing screen plate 800 shown in Figure 18 has the first feeding zone 842 and one second feeding zone 844, and the first feeding zone 842 is not connected with the second feeding zone 844.
Figure 19 is the top view of the solar cell 900 illustrated according to an embodiment of the present utility model.In Figure 19, solar cell 900 comprises semiconductor substrate 910, upper electrode arrangement 903 and lower electrode arrangement (not illustrating).
Semiconductor substrate 910 has upper surface 912 and the lower surface (not illustrating) relative to upper surface 912.Upper electrode arrangement 903 is positioned at the upper surface 912 of semiconductor substrate 910, and is utilize printing screen plate 800 as shown in figure 18 to be formed.Upper electrode arrangement 903 has first side 921 and the second side 923 relative to first side 921, wherein first side 921 has at least one first recess 925, and second side 923 has at least one second recess 927, and upper electrode arrangement 903 has at least one first shrinkage pool 924.Arbitrary straight line between first side 921 and second side 923 have the first recess 925, second recess 927, first shrinkage pool 924 or its combination.
According to embodiment of the present utility model, the first recess 925, second recess 927 and the first shrinkage pool 924 have a geometric figure separately.According to embodiment of the present utility model, above-mentioned geometric figure comprises triangle, quadrangle, pentagon, hexagon, circle, strip or its combination.
According to embodiment of the present utility model, the aperture of the first shrinkage pool 924 is 0.05 ~ 2.4 millimeter separately.According to embodiment of the present utility model, above-mentioned every two adjacent the first shrinkage pool 924, first shrinkage pools 924 and the first recess 925, first shrinkage pool 924 and the second recess 927 or its combine between distance be 0.05 ~ 2.4 millimeter.
According to embodiment of the present utility model, upper electrode arrangement 903 comprises many upper bus electrodes 920, many upper finger electrodes 940 or its combination.According to embodiment of the present utility model, all upper bus electrodes 920 extend along first direction 901, all upper finger electrodes 940 extend along second direction 902, and one end of all upper finger electrodes 940 is connected with all upper bus electrodes 920, and wherein second direction 902 is different with first direction 901.According to embodiment of the present utility model, the width of above-mentioned all upper finger electrodes 940 is 0.02 ~ 0.2 micron.
Solar cell 900 shown in Figure 19 is similar to the solar cell 700 shown in Figure 17.The all upper bus electrode 920 of the solar cell 900 shown in Figure 19 has multiple first section 942 and multiple second section 944.Solar cell 900 shown in Figure 19 is with the difference part of the solar cell 700 shown in Figure 17, and the solar cell 900 shown in Figure 19 has the pattern unit be made up of two the first sections 942 and second section 944, and is sequentially formed by connecting.According to embodiment of the present utility model, all first sections 942 of upper bus electrode 920 have the first bus electrode width (W1).According to embodiment of the present utility model, the first bus electrode width (W1) is 0.5 ~ 2.5 millimeter.According to embodiment of the present utility model, all second sections 944 of upper bus electrode 920 have the second bus electrode width (W2).According to embodiment of the present utility model, above-mentioned second bus electrode width (W2) is between 0.05 ~ 2 millimeter.
In addition, at least one in all upper bus electrode 920 of the solar cell 900 shown in Figure 19 has the first section of confluxing 952 and the second section of confluxing 954, and the first section of confluxing 952 is not connected with the second section of confluxing 954.According to embodiment of the present utility model, the lower electrode arrangement (not illustrating) of solar cell 900 is identical with upper electrode arrangement 903.
There is disclosed by the utility model the printing screen plate of the strong point, the bus electrode of the solar cell made by this Printing screen is used to have uniform thickness, that can improve electrode structure and module termination electrode welds pulling force, and increase the contact area of bus electrode and module termination electrode, to promote the in electrical contact of bus electrode and module termination electrode, and then promote the yield of solar cell.
Although embodiment of the present utility model has disclosed as above; so itself and be not used to limit the utility model; anyly be familiar with this those skilled in the art; not departing from spirit and scope of the present utility model; when doing a little change and retouching, the scope that therefore protection domain of the present utility model ought define with appending claims is as the criterion.
Claims (25)
1. for making a printing screen plate for electrode of solar battery, it is characterized in that, comprising:
One grenadine layer; And
One printing pattern layer, be arranged between this grenadine layer and semiconductor substrate, this printing pattern layer has an electrode feeding zone, an occlusion part and at least one strong point, and wherein this occlusion part is adjacent to this electrode feeding zone, and this strong point is arranged in this electrode feeding zone,
Wherein this electrode feeding zone has a first side and the second side relative to this first side, wherein this first side has at least one first supporting lug be made up of this occlusion part, and this second side has at least one second supporting lug be made up of this occlusion part, and arbitrary straight line between this first side and this second side have this first supporting lug, this second supporting lug, this strong point or its combination.
2. the printing screen plate for making electrode of solar battery according to claim 1, is characterized in that, this electrode feeding zone comprises multiple bus electrode feeding zone, multiple finger electrode feeding zone or its combination.
3. the printing screen plate for making electrode of solar battery according to claim 2, it is characterized in that, described bus electrode feeding zone has multiple first section and multiple second section, and described first section and described second section are alternately arranged with each other and connect.
4. the printing screen plate for making electrode of solar battery according to claim 3, it is characterized in that, described first section of described bus electrode feeding zone has one first bus electrode feeding zone width, and this first bus electrode feeding zone width is 0.5 ~ 2.5 millimeter.
5. the printing screen plate for making electrode of solar battery according to claim 3, it is characterized in that, described second section of described bus electrode feeding zone has one second bus electrode feeding zone width, and this second bus electrode feeding zone width is between 0.05 ~ 2 millimeter.
6. the printing screen plate for making electrode of solar battery according to claim 2, it is characterized in that, at least one in the described bus electrode feeding zone of this printing pattern layer has one first feeding zone and one second feeding zone, and this first feeding zone is not connected with this second feeding zone.
7. the printing screen plate for making electrode of solar battery according to claim 2, it is characterized in that, described bus electrode feeding zone extends along a first direction, described finger electrode feeding zone extends along a second direction, and one end of described finger electrode feeding zone is connected with described bus electrode feeding zone.
8. the printing screen plate for making electrode of solar battery according to claim 2, is characterized in that, the width of described finger electrode feeding zone is 0.02 ~ 0.2 micron.
9. the printing screen plate for making electrode of solar battery according to claim 1, is characterized in that, this first supporting lug, this second supporting lug, this strong point have a geometric figure separately.
10. the printing screen plate for making electrode of solar battery according to claim 9, is characterized in that, this geometric figure comprises triangle, quadrangle, pentagon, hexagon, circle, strip or its combination.
11. printing screen plates for making electrode of solar battery according to claim 1, is characterized in that, the diameter of this strong point is 0.05 ~ 2.4 millimeter.
12. printing screen plates for making electrode of solar battery according to claim 1, it is characterized in that, every two adjacent this strong point, this strong point and this first supporting lugs, this strong point and this second supporting lug or its combine between distance be 0.05 ~ 2.4 millimeter.
13. 1 kinds of solar cells, is characterized in that, comprise:
Semiconductor substrate, has a upper surface and a lower surface relative to this upper surface;
One upper electrode arrangement, be positioned at this upper surface of this semiconductor substrate, this upper electrode arrangement utilizes printing screen plate as claimed in claim 1 to be formed, and there is a first side and the second side relative to this first side, wherein this first side has at least one first recess, and this second side has at least one second recess, this upper electrode arrangement has at least one first shrinkage pool, and arbitrary straight line between this first side and this second side has this first recess, this second recess, this first shrinkage pool or its combination; And
One lower electrode arrangement, be positioned at this lower surface of this semiconductor substrate, this lower electrode arrangement utilizes printing screen plate as claimed in claim 1 to be formed, and there is one the 3rd side and the four side relative to the 3rd side, wherein the 3rd side has at least one 3rd recess, and this four side has at least one 4th recess, this lower electrode arrangement has at least one second shrinkage pool, and arbitrary straight line between the 3rd side and this four side has the 3rd recess, the 4th recess, this second shrinkage pool or its combination.
14. solar cells according to claim 13, it is characterized in that, this upper electrode arrangement comprises many upper bus electrodes, many upper finger electrodes or its combination, and this lower electrode arrangement comprises many lower bus electrodes, many lower finger electrodes or its combination, one end of wherein said upper finger electrode is connected with described upper bus electrode, and one end of described lower finger electrode is connected with described lower bus electrode.
15. solar cells according to claim 14, it is characterized in that, described upper bus electrode and described lower bus electrode extend along a first direction, described upper finger electrode and described lower finger electrode extend along a second direction, and one end of described upper finger electrode and described lower finger electrode is connected with described upper bus electrode or described lower bus electrode respectively, wherein this second direction and this first direction different.
16. solar cells according to claim 14, it is characterized in that, described upper bus electrode, described lower bus electrode or its combination have multiple first section and multiple second section, and described first section and described second section are alternately arranged with each other and connect.
17. solar cells according to claim 16, is characterized in that, described first section has bus electrode width on one first, this on first bus electrode width be 0.5 ~ 2.5 millimeter.
18. solar cells according to claim 16, is characterized in that, described second section has bus electrode width on one second, this on second bus electrode width between 0.05 ~ 2 millimeter.
19. solar cells according to claim 14, it is characterized in that, at least one there is one first section of confluxing and one second section of confluxing in described upper bus electrode, described lower bus electrode or its combination, and this first section of confluxing is not connected with this second section of confluxing.
20. solar cells according to claim 13, is characterized in that, this first recess, this second recess, the 3rd recess, the 4th recess, this first shrinkage pool and this second shrinkage pool have a geometric figure separately.
21. solar cells according to claim 20, is characterized in that, this geometric figure comprises triangle, quadrangle, pentagon, hexagon, circle, strip or its combination.
22. solar cells according to claim 13, is characterized in that, the aperture of this first shrinkage pool and this second shrinkage pool is independently 0.05 ~ 2.4 millimeter separately.
23. solar cells according to claim 13, is characterized in that, every two adjacent this first shrinkage pool, this first shrinkage pool and this first recesses, this first shrinkage pool and this second recess or its combine between distance be 0.05 ~ 2.4 millimeter.
24. solar cells according to claim 13, is characterized in that, every two adjacent this second shrinkage pool, this second shrinkage pool and the 3rd recesses, this second shrinkage pool and the 4th recess or its combine between distance be 0.05 ~ 2.4 millimeter.
25. solar cells according to claim 14, is characterized in that, described upper finger electrode, described lower finger electrode or its width combined are 0.02 ~ 0.2 micron.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420644145.0U CN204210139U (en) | 2014-10-31 | 2014-10-31 | For making printing screen plate and the solar cell of electrode of solar battery |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420644145.0U CN204210139U (en) | 2014-10-31 | 2014-10-31 | For making printing screen plate and the solar cell of electrode of solar battery |
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| Publication Number | Publication Date |
|---|---|
| CN204210139U true CN204210139U (en) | 2015-03-18 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420644145.0U Expired - Fee Related CN204210139U (en) | 2014-10-31 | 2014-10-31 | For making printing screen plate and the solar cell of electrode of solar battery |
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| Country | Link |
|---|---|
| CN (1) | CN204210139U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106335299A (en) * | 2015-07-14 | 2017-01-18 | 正中科技股份有限公司 | Designable printing steel plate structure of solar cell front silver electrodes |
-
2014
- 2014-10-31 CN CN201420644145.0U patent/CN204210139U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106335299A (en) * | 2015-07-14 | 2017-01-18 | 正中科技股份有限公司 | Designable printing steel plate structure of solar cell front silver electrodes |
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Granted publication date: 20150318 Termination date: 20171031 |