CN114112797A - Hydrophilicity detection mechanism - Google Patents
Hydrophilicity detection mechanism Download PDFInfo
- Publication number
- CN114112797A CN114112797A CN202111391352.0A CN202111391352A CN114112797A CN 114112797 A CN114112797 A CN 114112797A CN 202111391352 A CN202111391352 A CN 202111391352A CN 114112797 A CN114112797 A CN 114112797A
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- China
- Prior art keywords
- hydrophilicity
- cover plate
- workbench
- slide plate
- mechanism according
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- Pending
Links
- 230000007246 mechanism Effects 0.000 title claims abstract description 27
- 238000001514 detection method Methods 0.000 title abstract description 18
- 239000007788 liquid Substances 0.000 claims abstract description 29
- 238000009792 diffusion process Methods 0.000 claims abstract description 21
- 238000012545 processing Methods 0.000 claims description 21
- 230000007480 spreading Effects 0.000 claims description 8
- 238000003892 spreading Methods 0.000 claims description 8
- 238000005259 measurement Methods 0.000 abstract description 22
- 238000012360 testing method Methods 0.000 abstract description 11
- 238000000034 method Methods 0.000 abstract description 9
- 230000008569 process Effects 0.000 abstract description 9
- 239000013078 crystal Substances 0.000 abstract 1
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 description 20
- 229910052710 silicon Inorganic materials 0.000 description 20
- 239000010703 silicon Substances 0.000 description 20
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 8
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 6
- 239000011521 glass Substances 0.000 description 5
- 235000012239 silicon dioxide Nutrition 0.000 description 4
- 239000000377 silicon dioxide Substances 0.000 description 4
- 230000000694 effects Effects 0.000 description 3
- 238000005530 etching Methods 0.000 description 3
- 210000004027 cell Anatomy 0.000 description 2
- 239000008367 deionised water Substances 0.000 description 2
- 229910021641 deionized water Inorganic materials 0.000 description 2
- 125000002887 hydroxy group Chemical group [H]O* 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 238000007747 plating Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 210000002858 crystal cell Anatomy 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000002209 hydrophobic effect Effects 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 230000003647 oxidation Effects 0.000 description 1
- 238000007254 oxidation reaction Methods 0.000 description 1
- 238000005070 sampling Methods 0.000 description 1
- 238000007650 screen-printing Methods 0.000 description 1
- 238000005245 sintering Methods 0.000 description 1
- 230000026676 system process Effects 0.000 description 1
- 238000009827 uniform distribution Methods 0.000 description 1
Images
Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N13/00—Investigating surface or boundary effects, e.g. wetting power; Investigating diffusion effects; Analysing materials by determining surface, boundary, or diffusion effects
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N13/00—Investigating surface or boundary effects, e.g. wetting power; Investigating diffusion effects; Analysing materials by determining surface, boundary, or diffusion effects
- G01N2013/003—Diffusion; diffusivity between liquids
Abstract
The invention relates to the technical field of solar single-crystal cell detection, and particularly discloses a hydrophilicity detection mechanism which comprises a workbench, a slide plate, a cover plate and a measurement system, wherein the slide plate is arranged in a groove on the slide plate of the workbench for placing an element to be detected, the cover plate is hinged with the workbench, the cover plate can be buckled above the slide plate, the measurement system is arranged on the workbench, when the hydrophilicity data of the element to be detected is measured, liquid drops are uniformly dripped to different positions on the surface of the element to be detected, then the diffusion information of the liquid drops at different positions on the surface of the element to be detected is obtained through the measurement system, and the diffusion size of the liquid drops on the element to be detected is obtained after the treatment of the measurement system. According to the invention, the hydrophilicity detection mechanism avoids the process of manual reading when a vernier caliper and the like are used for measurement, so that the hydrophilicity detection mechanism is ensured to have good test stability and accurate measurement.
Description
Technical Field
The invention relates to the technical field of solar single crystal cell detection, in particular to a hydrophilicity detection mechanism.
Background
The production steps of the conventional solar cell generally comprise the main steps of surface texturing, diffusion knot making, etching to remove edge knots and phosphorosilicate glass, antireflection film plating, screen printing, sintering, detection and subpackaging and the like. And some special batteries also comprise a step of growing a silicon dioxide layer on the surface of the silicon wafer after etching and before plating an antireflection film, and the hydrophilicity of the silicon dioxide layer needs to be tested. In the traditional process, after an etching process, the surface of the silicon wafer is clean and does not contain hydrophilic groups, and the surface of the silicon wafer is hydrophobic at the moment. If a layer of silicon dioxide grows on the surface of the silicon wafer, the surface of the silicon dioxide contains hydroxyl, the hydroxyl can be temporarily combined with water molecules, and the surface of the silicon wafer is hydrophilic.
In the prior art, a hydrophilicity detection method is usually a manual test, a certain amount of deionized water is required to be uniformly dropped on a silicon wafer manually, after the water drops are spread on the silicon wafer, the water drops are measured manually by a vernier caliper, the hydrophilicity effect of the silicon wafer can be judged by comparing the diffusion size of the water drops on the silicon wafer, and the oxidation effect of the silicon wafer is determined by using the hydrophilicity result. However, the position of the deionized water added dropwise each time is not well determined by means of manual measurement, the measurement is unstable, and the measurement result of manually using a vernier caliper is also inaccurate.
Therefore, there is a need for a hydrophilicity detecting mechanism, which can replace the manual operation process of measuring hydrophilicity, and has high testing stability and accurate testing.
Disclosure of Invention
The invention aims to provide a hydrophilicity detection mechanism, which aims to solve the problems that in the prior art, the measurement is unstable in a mode of manually measuring the hydrophilicity and the measurement result is inaccurate.
In order to achieve the purpose, the invention adopts the following technical scheme:
the present invention provides a hydrophilicity detecting mechanism, including:
the worktable is provided with a bracket;
the slide plate is arranged on the workbench, and the upper surface of the slide plate is provided with a groove for placing an element to be detected;
the cover plate is arranged on the workbench and is hinged with the workbench, the opening and closing angle of the cover plate ranges from 0 degree to 180 degrees, and the cover plate can be buckled right above the slide plate;
and the measuring system is arranged on the workbench and is used for measuring the diffusion size of the liquid drop on the element to be tested.
Optionally, the measurement system further includes an image collecting component and an image processing system, the image collecting component is electrically connected to the image processing system, the image collecting component is configured to collect image information of the spreading condition of the liquid droplet and transmit the image information to the image processing system, and the image processing system obtains the spreading size of the liquid droplet according to the image information.
Optionally, the image collecting assembly is a camera, and the camera is arranged at the tail end of the bracket and is opposite to the groove.
Optionally, the measuring system comprises a graduated scale disposed around the groove, the graduated scale being configured to mark a diffusion size of the liquid droplet.
Optionally, the graduated scale comprises a transverse graduated scale and a longitudinal graduated scale, and the transverse graduated scale and the longitudinal graduated scale are arranged on two adjacent sides of the slide plate.
Optionally, a plurality of leveling bolts are arranged on the slide plate, and the slide plate is fixed on the workbench through the leveling bolts.
Optionally, a horizontal indicating assembly is further arranged on the slide plate, and the horizontal indicating assembly can indicate that the slide plate is in a horizontal state.
Optionally, a plurality of openings are dispersedly formed in the cover plate, and the plurality of openings are used for dripping the liquid drops on the surface of the element to be tested.
Optionally, the cover is a transparent viewing cover.
Optionally, the cross section of the groove is square, and the groove is compatible with the element to be tested with the side length of 150 mm-230 mm.
The invention has the beneficial effects that:
the present invention provides a hydrophilicity detecting mechanism, including: the measuring system is arranged on the workbench, when the hydrophilic data of the element to be detected is measured, liquid drops are uniformly dripped to different positions on the surface of the element to be detected, then diffusion information of the liquid drops at different positions on the surface of the element to be detected is obtained through the measuring system, and the diffusion size of the liquid drops on the element to be detected is obtained after the processing of the measuring system. The hydrophilicity detection mechanism determines the position of dripping liquid drops on an element to be tested, the uniform distribution of diffusion samples of the liquid drops is ensured, then the diffusion information of the liquid drops is obtained through the measurement system, the diffusion size of the detection element obtained through the measurement system is processed, the process of manual reading when vernier calipers and the like are used for measurement is avoided, and therefore the hydrophilicity detection mechanism is ensured to be good in test stability and accurate in measurement.
Drawings
Fig. 1 is a front view of a hydrophilicity detecting mechanism provided in an embodiment of the present invention;
fig. 2 is a top view of a hydrophilicity detecting mechanism provided in an embodiment of the present invention.
In the figure:
1. a work table; 11. a support; 2. a slide plate; 21. leveling bolts; 22. a level indicating assembly; 3. an element to be detected; 4. a cover plate; 41. opening a hole; 5. an image collection assembly; 61. a transverse graduated scale; 62. a longitudinal graduated scale.
Detailed Description
The technical solutions of the present invention will be described clearly and completely with reference to the accompanying drawings, and it should be understood that the described embodiments are some, but not all embodiments of the present invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplicity of description, but do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first," "second," and the like are used for descriptive purposes only and are not to be construed as indicating or implying relative importance. Where the terms "first position" and "second position" are two different positions, and where a first feature is "over", "above" and "on" a second feature, it is intended that the first feature is directly over and obliquely above the second feature, or simply means that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature includes the first feature being directly under and obliquely below the second feature, or simply meaning that the first feature is at a lesser elevation than the second feature.
In the description of the present invention, it should be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.
Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below with reference to the accompanying drawings are illustrative only for the purpose of explaining the present invention, and are not to be construed as limiting the present invention.
The embodiment provides a hydrophilicity detection mechanism, as shown in fig. 1 and fig. 2, the hydrophilicity detection mechanism is suitable for detecting hydrophilicity of a silicon wafer in a solar cell, in the embodiment, an element 3 to be detected is illustrated by taking a silicon wafer as an example, the hydrophilicity detection mechanism comprises a workbench 1, a slide plate 2, a cover plate 4 and a measurement system, wherein the slide plate 2 is arranged on the workbench 1, a groove is arranged on the upper surface of the slide plate 2, the bottom surface of the groove is parallel to the upper surface of the slide plate 2, the cross section of the groove is square, the groove is compatible with a silicon wafer with a side length of 150 mm-230 mm, the cover plate 4 is arranged on the workbench 1 at a position on one side of the slide plate 2, the cover plate 4 is connected with the workbench 1 through a hinge, the cover plate 4 can be buckled right above the slide plate 2, the opening and closing angle of the cover plate 4 is 0-180 degrees, when the cover plate 4 is opened, the silicon wafer can be placed in the groove on the slide plate 2, during measurement, the cover plate 4 is buckled right above the slide glass plate 2, the workbench 1 is also provided with a measuring system, and the measuring system can measure the diffusion size of liquid drops on the silicon chip. The step of manual measurement of the diffusion size of the liquid drop is replaced by the arrangement of the measuring system, the testing stability is high, and the testing is accurate.
Further, with reference to fig. 1, the measuring system further includes an image collecting assembly 5 and an image processing system (not shown in the figure), a support 11 is disposed on the worktable 1, the image collecting assembly 5 is fixed at the end of the support 11, the image collecting assembly 5 is disposed opposite to the groove on the slide plate 2, the image collecting assembly 5 can clearly obtain image information of the spreading condition of the liquid droplets on the silicon wafer, the image processing system is electrically connected to the image collecting assembly 5, the image collecting assembly 5 can transmit the image information to the image processing system, and the image processing system calculates the spreading size of the liquid droplets according to the obtained image information. The image processing system omits the process of manual reading measurement, simplifies the operation steps of hydrophilicity detection, and has accurate measurement result and short data processing time.
In some embodiments, the image collecting component 5 is a camera, the camera is disposed at the end of the support 11 and directly faces the slide holder 2, so that a picture of the spreading condition of the liquid droplets on the silicon wafer can be clearly taken, the picture is transmitted to the image processing system, the image processing system processes the picture to obtain the spreading size of the liquid droplets, and the specific setting of the image processing system is a mature technology in the field and is not described herein again.
Optionally, as shown in fig. 2, the measuring system in this embodiment includes a graduated scale disposed around the groove, and the graduated scale is capable of marking the diffusion size of the liquid drop on the silicon wafer. More preferably, the graduated scale comprises a transverse graduated scale 61 and a longitudinal graduated scale 62, and the transverse graduated scale 61 and the longitudinal graduated scale 62 are arranged on two adjacent sides of the slide plate 2, so that the graduated scale can measure the diffusion size of the liquid drop in the transverse direction and the longitudinal direction, and the measurement result obtained by integrating the two data is more accurate.
With reference to fig. 2, a plurality of leveling bolts 21 are disposed on the slide plate 2, and in this embodiment, three leveling bolts 21 are taken as an example for description, wherein one leveling bolt 21 is disposed at a middle position of one side of the slide plate 2, two leveling bolts 21 are disposed at the other side opposite to the one side, and the two leveling bolts 21 are disposed in a dispersed manner and are respectively located at positions close to corners of the slide plate 2. On the one hand, can fix slide glass board 2 on workstation 1 through leveling bolt 21, on the other hand, can adjust the height of slide glass platform through knob leveling bolt 21, make the whole horizontally state that is in of slide glass platform, the diffusion effect of test liquid drop is better this moment, and measuring result is more accurate, and uses when can be applicable to the condition of some unevenness in ground, and it is more convenient, nimble to be suitable for the scene.
Furthermore, a horizontal indicating assembly 22 is further arranged at one corner of the slide plate 2, the horizontal indicating assembly 22 can indicate that the slide plate 2 is in a horizontal state, whether the slide holder is in a horizontal state or not can be identified through the arrangement, and the reliability of the leveling process of the slide holder is ensured. The arrangement of the specific level indicating assembly 22 is well known in the art and will not be described in detail herein.
In the present embodiment, the cover plate 4 is provided with a plurality of holes 41 in a distributed manner, and the present embodiment is described by taking five holes 41 as an example, five holes 41 are uniformly arranged at the middle position of the cover plate 4, and droplets can be dropped onto the surface of the silicon wafer through the five holes 41. Of course, in other embodiments, three, four, six or other numbers of the openings 41 may be provided, which is not limited in this embodiment. Through setting up a plurality of trompils 41 and dripping liquid drop on the silicon chip uniformly, can obtain a plurality of reference samples, avoid the interference of other factors in the testing process, reduced the error of experimental operation, improved the stability of test.
Preferably, the above-mentioned cover plate 4 is provided as a transparent viewing cover plate 4. By providing the cover plate 4 as a transparent cover plate 4, the image collecting assembly 5 is facilitated to collect image information of the condition of droplet spread.
The specific working process is as follows:
firstly, opening a cover plate 4, placing an element 3 to be detected in a groove on a slide plate 2, then buckling the cover plate 4 above the slide plate 2, uniformly dripping five droplets on the surface of the element 3 to be detected through five openings 41 on the cover plate 4, standing for a period of time, then taking a picture of the diffusion condition of the droplets on the element 3 to be detected by an image collecting component 5 of a measuring system, and sampling, wherein the picture is taken by the image collecting component 5 and transmitted to an image processing system, so that the diffusion sample of the five droplets obtained by the image processing system is processed by the image processing system to obtain the diffusion size of the droplets on the surface of the element 3 to be detected, then opening the cover plate 4 and taking out the element 3 to be detected, and the hydrophilicity test of the element 3 to be detected is finished.
It should be understood that the above-described embodiments of the present invention are merely examples for clearly illustrating the present invention, and are not intended to limit the embodiments of the present invention. Other variations and modifications will be apparent to persons skilled in the art in light of the above description. And are neither required nor exhaustive of all embodiments. Any modification, equivalent replacement, and improvement made within the spirit and principle of the present invention should be included in the protection scope of the claims of the present invention.
Claims (10)
1. A hydrophilicity detecting mechanism characterized by comprising:
the device comprises a workbench (1), wherein a support (11) is arranged on the workbench (1);
the chip carrying plate (2) is arranged on the workbench (1), and a groove is formed in the upper surface of the chip carrying plate (2) and used for placing an element (3) to be detected;
the cover plate (4) is arranged on the workbench (1), the cover plate (4) is hinged with the workbench (1), the opening and closing angle of the cover plate (4) is 0-180 degrees, and the cover plate (4) can be buckled right above the slide plate (2);
the measuring system is arranged on the workbench (1) and is used for measuring the diffusion size of liquid drops on the element to be tested.
2. The hydrophilicity detecting mechanism according to claim 1, wherein the measuring system includes an image collecting component (5) and an image processing system, the image collecting component (5) is electrically connected with the image processing system, the image collecting component (5) is used for collecting image information of the spreading condition of the liquid drop and transmitting the image information to the image processing system, and the image processing system obtains the spreading size of the liquid drop according to the image information.
3. The hydrophilicity detecting mechanism according to claim 2, wherein said image collecting member (5) is a camera, and said camera is disposed at a distal end of said holder (11) opposite to said groove.
4. The hydrophilicity sensing mechanism according to claim 2, wherein said measuring system includes a graduated scale disposed around said groove, said graduated scale being for marking a diffusion size of said liquid droplet.
5. The hydrophilicity detecting mechanism according to claim 4, wherein said graduated scale comprises a transverse graduated scale (61) and a longitudinal graduated scale (62), said transverse graduated scale (61) and said longitudinal graduated scale (62) being disposed on adjacent sides of said slide plate (2).
6. The hydrophilicity detecting mechanism according to claim 1, wherein a plurality of leveling bolts (21) are provided on said slide plate (2), and said leveling bolts (21) fix said slide plate (2) on said table (1).
7. The hydrophilicity detecting mechanism according to claim 6, wherein a level indicating component (22) is further provided on the slide plate (2), and the level indicating component (22) can indicate that the slide plate (2) is in a horizontal state.
8. The hydrophilicity detecting mechanism according to claim 1, wherein a plurality of openings (41) are dispersedly disposed on said cover plate (4), and a plurality of said openings (41) are used for dripping said liquid drop on the surface of said element to be tested.
9. The hydrophilicity detecting mechanism according to claim 1, wherein said cover plate (4) is a transparent viewing cover plate (4).
10. The hydrophilicity detecting mechanism according to claim 1, wherein said groove has a square cross section, and said groove is compatible with said element to be tested having a side length of 150mm to 230 mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111391352.0A CN114112797A (en) | 2021-11-23 | 2021-11-23 | Hydrophilicity detection mechanism |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111391352.0A CN114112797A (en) | 2021-11-23 | 2021-11-23 | Hydrophilicity detection mechanism |
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| Publication Number | Publication Date |
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| CN114112797A true CN114112797A (en) | 2022-03-01 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202111391352.0A Pending CN114112797A (en) | 2021-11-23 | 2021-11-23 | Hydrophilicity detection mechanism |
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Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105334141A (en) * | 2015-12-01 | 2016-02-17 | 浙江晶科能源有限公司 | Silicon wafer hydrophilic testing platform |
| CN208420616U (en) * | 2018-05-07 | 2019-01-22 | 苏州中世太新能源科技有限公司 | Silicon wafer hydrophily tester |
| CN211122425U (en) * | 2019-11-29 | 2020-07-28 | 横店集团东磁股份有限公司 | Hydrophilicity testboard |
| CN112284983A (en) * | 2020-10-16 | 2021-01-29 | 中航华东光电有限公司 | Method for measuring contact angle by image processing |
-
2021
- 2021-11-23 CN CN202111391352.0A patent/CN114112797A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105334141A (en) * | 2015-12-01 | 2016-02-17 | 浙江晶科能源有限公司 | Silicon wafer hydrophilic testing platform |
| CN208420616U (en) * | 2018-05-07 | 2019-01-22 | 苏州中世太新能源科技有限公司 | Silicon wafer hydrophily tester |
| CN211122425U (en) * | 2019-11-29 | 2020-07-28 | 横店集团东磁股份有限公司 | Hydrophilicity testboard |
| CN112284983A (en) * | 2020-10-16 | 2021-01-29 | 中航华东光电有限公司 | Method for measuring contact angle by image processing |
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