CN115124252A - Fingerprint panel sealing and thinning method - Google Patents
Fingerprint panel sealing and thinning method Download PDFInfo
- Publication number
- CN115124252A CN115124252A CN202210884512.3A CN202210884512A CN115124252A CN 115124252 A CN115124252 A CN 115124252A CN 202210884512 A CN202210884512 A CN 202210884512A CN 115124252 A CN115124252 A CN 115124252A
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- China
- Prior art keywords
- fingerprint
- curing
- module
- fingerprint panel
- jig
- Prior art date
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Links
- 238000000034 method Methods 0.000 title claims abstract description 41
- 238000007789 sealing Methods 0.000 title claims abstract description 36
- 239000003292 glue Substances 0.000 claims abstract description 43
- 239000002253 acid Substances 0.000 claims abstract description 16
- 239000000758 substrate Substances 0.000 claims abstract description 4
- 238000012546 transfer Methods 0.000 claims description 17
- 238000005530 etching Methods 0.000 claims description 9
- 239000011521 glass Substances 0.000 claims description 9
- 238000005286 illumination Methods 0.000 claims description 8
- 238000012937 correction Methods 0.000 claims description 7
- 238000013519 translation Methods 0.000 claims description 5
- 238000005520 cutting process Methods 0.000 claims description 4
- 239000011248 coating agent Substances 0.000 claims description 3
- 238000000576 coating method Methods 0.000 claims description 3
- 238000003698 laser cutting Methods 0.000 claims description 3
- 238000007711 solidification Methods 0.000 claims description 3
- 230000008023 solidification Effects 0.000 claims description 3
- 230000000694 effects Effects 0.000 abstract description 3
- 239000007787 solid Substances 0.000 abstract 2
- KRHYYFGTRYWZRS-UHFFFAOYSA-N Fluorane Chemical compound F KRHYYFGTRYWZRS-UHFFFAOYSA-N 0.000 description 2
- QAOWNCQODCNURD-UHFFFAOYSA-N Sulfuric acid Chemical compound OS(O)(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-N 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000000926 separation method Methods 0.000 description 2
- 239000000853 adhesive Substances 0.000 description 1
- 230000001070 adhesive effect Effects 0.000 description 1
- 230000001458 anti-acid effect Effects 0.000 description 1
- 230000001174 ascending effect Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000010030 laminating Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 239000011159 matrix material Substances 0.000 description 1
- 238000001179 sorption measurement Methods 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
Images
Classifications
-
- C—CHEMISTRY; METALLURGY
- C03—GLASS; MINERAL OR SLAG WOOL
- C03C—CHEMICAL COMPOSITION OF GLASSES, GLAZES OR VITREOUS ENAMELS; SURFACE TREATMENT OF GLASS; SURFACE TREATMENT OF FIBRES OR FILAMENTS MADE FROM GLASS, MINERALS OR SLAGS; JOINING GLASS TO GLASS OR OTHER MATERIALS
- C03C15/00—Surface treatment of glass, not in the form of fibres or filaments, by etching
-
- C—CHEMISTRY; METALLURGY
- C03—GLASS; MINERAL OR SLAG WOOL
- C03B—MANUFACTURE, SHAPING, OR SUPPLEMENTARY PROCESSES
- C03B33/00—Severing cooled glass
- C03B33/02—Cutting or splitting sheet glass or ribbons; Apparatus or machines therefor
- C03B33/0222—Scoring using a focussed radiation beam, e.g. laser
-
- C—CHEMISTRY; METALLURGY
- C03—GLASS; MINERAL OR SLAG WOOL
- C03C—CHEMICAL COMPOSITION OF GLASSES, GLAZES OR VITREOUS ENAMELS; SURFACE TREATMENT OF GLASS; SURFACE TREATMENT OF FIBRES OR FILAMENTS MADE FROM GLASS, MINERALS OR SLAGS; JOINING GLASS TO GLASS OR OTHER MATERIALS
- C03C27/00—Joining pieces of glass to pieces of other inorganic material; Joining glass to glass other than by fusing
- C03C27/06—Joining glass to glass by processes other than fusing
Abstract
The invention discloses a sealing method and a thinning method of fingerprint panels, wherein a sealing device with a solid module and a side solid module is adopted to enable fingerprint areas of two fingerprint panels to be opposite, UV glue is adopted for bonding, and the sealing effect of the two fingerprint panels is achieved through surface curing and side curing; the substrate is etched and thinned through strong acid after being sealed, and the fingerprint area is protected after being sealed, so that an acid-resistant film is not needed, the consumption of consumables is reduced, the cost is reduced, the process steps are simplified, and the working efficiency is improved.
Description
Technical Field
The invention belongs to the technical field of manufacturing processes of fingerprint panels, and particularly relates to a method for sealing and thinning a fingerprint panel.
Background
The traditional large-size fingerprint panel needs to be subjected to a strong acid etching thinning process to reduce the thickness of a fingerprint module, in order to protect a fingerprint area from being corroded by strong acid, an acid-resistant film needs to be pasted on the fingerprint area, then the fingerprint area is put into strong acid to be etched and thinned, and the acid-resistant film is removed after the thinning is finished. The above process scheme has the following problems: firstly, the acid-resistant film is expensive and is a consumable material, so that the cost of the fingerprint panel is high; secondly, film sticking equipment, film tearing equipment and the like are needed to carry out film sticking, film tearing and other processes, and the process is complex and has many steps; and thirdly, only one fingerprint panel can be etched and thinned by one finished product, the efficiency is low, and the productivity is difficult to improve. The above-mentioned problems have restricted the development and application of fingerprint panels.
Disclosure of Invention
Aiming at the defects in the prior art, the invention provides a method for sealing and thinning a fingerprint panel.
In order to achieve the above purpose, the technical scheme of the invention is as follows:
a sealing method of a fingerprint panel is characterized in that two fingerprint panels are attached and sealed by adopting sealing equipment, the sealing equipment comprises a main fixing module and a side fixing module, the main fixing module comprises an upper cavity jig, a lower cavity jig, a glue dispensing module, a first transfer module and a vacuumizing module, and the lower cavity jig is provided with a curing UV light source; the side fixing module is provided with a side fixing UV light source; the sealing method comprises the following steps:
1) placing the first fingerprint panel in the lower cavity jig with the fingerprint surface facing downwards, driving the lower cavity jig to move to the position below the upper cavity jig by the first transfer module, and enabling the upper cavity jig to descend to adsorb the first fingerprint panel and ascend for waiting;
2) placing the second fingerprint panel in the lower cavity jig with the fingerprint surface facing upwards, driving the lower cavity jig to move to the dispensing module by the first transfer module to dispense UV (ultraviolet) glue, and then moving to the position below the upper cavity jig;
3) the upper cavity jig is lowered to be closed with the lower cavity jig, the cavity is sealed and vacuumized through the vacuumizing module, so that the first fingerprint panel and the second fingerprint panel are attached, the UV glue is cured by the curing UV light source from bottom to top, and the cavity is opened after curing is completed;
4) and transferring the attached product to a side-fixing module, and curing the UV glue from the side direction by adopting a side-curing UV light source.
Optionally, the fixing module further comprises an alignment module, the alignment module comprises a camera and a correction platform, and the correction platform is arranged in the lower cavity jig; in the step 3), the method further comprises the steps of carrying out image capture and alignment on the first fingerprint panel and the second fingerprint panel through a camera, and correcting the position of the second fingerprint panel through a correction platform to be overlapped with the first fingerprint panel.
Optionally, the side curing module further comprises a side curing jig, a second transfer module and a manipulator, in the step 4), the attached product is placed in the side curing jig through the manipulator, and the second transfer module drives the side curing jig to move to the side curing UV light source for side curing.
Optionally, the lateral surface curing device comprises two groups of lateral curing UV light sources which are oppositely arranged, the lateral surface curing jig moves between the two groups of lateral curing UV light sources, and the lateral surface curing jig can horizontally rotate; simultaneously curing two sides of the attached product; and then the lateral surface curing jig rotates by 90 degrees to cure the other two sides of the attached product.
Optionally, the fixed module is further provided with a pre-curing UV light source matched with the dispensing module, and in step 2), the dispensing includes
a) Performing # -shaped glue dispensing on the second fingerprint panel;
b) carrying out square glue dispensing on the second fingerprint panel to form inner frame glue positioned at the outer side of the square glue dispensing;
c) pre-curing by adopting a pre-curing UV light source;
d) and carrying out square glue dispensing on the second fingerprint panel to form outer frame glue positioned on the outer side of the inner frame glue.
Optionally, the pre-curing is performed in a manner that the pre-curing UV light source and the second fingerprint panel are relatively translated, and the pre-curing UV illumination intensity is 400-600 mw/cm 2 The translation speed is 10-30 mm/s.
Optionally, in the step 3), the intensity of the UV light for curing is 150-300 mw/cm 2 The time is 20-40 s; in the step 4), the UV illumination intensity of side curing is 1400-1600 mw/cm 2 The time is 8-15 s.
A thinning method of a fingerprint panel comprises the following steps:
1) combining and sealing the two fingerprint panels according to the sealing method;
2) etching the back of the attached product to thin the product;
3) the two fingerprint panels were separated.
Optionally, the fingerprint panel includes a glass substrate, and in step 2), the attached product is etched and thinned in strong acid.
Optionally, the fingerprint panel is provided with a plurality of fingerprint areas, and the UV glue is coated in intervals of the fingerprint areas; in the step 3), cutting the UV glue coating area through laser cutting equipment.
The invention has the beneficial effects that:
1) the fingerprint areas of the 2 fingerprint panels face inwards, UV glue is adopted for bonding and the glue is solidified, the sealing effect of the 2 pieces of glass is achieved, and the sealed fingerprint areas are protected, so that an acid-resistant film is not needed, the consumption of consumables is reduced, the cost is reduced, and the process steps are simplified;
2) the 2 fingerprint panels after sealing and attaching can be etched and thinned at the back simultaneously, so that the working efficiency is improved.
Drawings
FIG. 1 is a schematic structural view of a sealing apparatus of example 1;
FIG. 2 is a process flow diagram of the sealing method of example 1;
fig. 3 is a flowchart of a dispensing process in embodiment 1.
Detailed Description
The invention is further explained below with reference to the figures and the specific embodiments. The drawings are only schematic and can be easily understood, and the specific proportion can be adjusted according to design requirements.
Example 1
Referring to fig. 1, the sealing method of the fingerprint panel of the embodiment adopts a sealing device comprising a fixed module 1 and a side fixed module 2. Wherein the content of the first and second substances,
the fixing module 1 comprises an upper cavity jig 11, a lower cavity jig 12, a dispensing module 13, a first transfer module 14, a vacuumizing module 15, a camera module 16 and a pre-curing UV light source 17. The lower cavity jig 12 is provided with the present curing UV light source and a calibration platform (not shown in the figure); the lower cavity jig 12 is driven by the first transfer module 14 to translate, and the dispensing module 13 and the upper cavity jig 11 are sequentially arranged in a translation path; the upper cavity jig 11 can move up and down and is connected with the vacuumizing module 15 to have a vacuum adsorption function; the pre-curing UV light source 17 is matched with the dispensing module 13; the camera module 16 is arranged near the upper cavity jig 11, and the camera module 16 and the correction platform are matched to form an alignment module;
the side fixing module 2 comprises a side curing jig 21, a second transferring module 22, a manipulator 23 and a side curing UV light source 24, wherein the manipulator 23 is used for transferring a product from the lower cavity jig 12 to the side curing jig 21, and the side curing jig 21 is driven by the second transferring module 22 to translate; the two sets of side curing UV light sources 24 are oppositely disposed and located in the translation path of the side curing jig 21, and the side curing jig 21 can be horizontally and rotatably disposed.
Adopt above-mentioned sealing equipment to laminate two fingerprint panels and seal, refer to fig. 2, process flow is:
1) placing the first fingerprint panel into the lower cavity jig 12, enabling the fingerprint surface to face downwards, moving the first transfer module 14 to be right below the upper cavity jig 11, descending the upper cavity jig 11, adsorbing the first fingerprint panel through vacuum, and ascending for waiting;
2) placing the second fingerprint panel into the lower cavity jig 12, enabling the fingerprint surface to face upwards, moving the first transfer module 14 to the position below the glue dispensing module 13, taking images of products, dispensing glue and pre-curing, and moving the first transfer module 14 to the position right below the upper cavity jig 11 after the product is obtained; referring to fig. 3, the dispensing of UV glue to the surface of the second fingerprint panel comprises: a) performing # -shaped glue dispensing, b) performing first square-shaped glue dispensing to form inner frame glue positioned at the outer side of the # -shaped glue dispensing; c) the lower cavity jig 11 is translated to enable the second fingerprint panel to be pre-cured through the linear pre-curing UV light source 17 at a constant speed, and the illumination intensity of the pre-curing UV light source 17 is 500mw/cm 2 The translation speed of the platform is 20mm/s, and the aim of pre-curing is to properly increase the viscosity of the UV glue and ensure stable form; d) is carried out for the second timeDispensing in a shape like a Chinese character 'kou', and forming outer frame glue positioned on the outer side of the inner frame glue; specifically, the fingerprint panel is provided with a plurality of fingerprint areas arranged in a matrix manner, and the # -shaped dispensing in the step a) is coated in the interval between the adjacent fingerprint areas so as to facilitate subsequent cutting and separation;
3) the camera module 16 moves to the image capturing position to capture and position the first fingerprint panel and the second fingerprint panel, and the calibration platform coincides the calibration position of the second fingerprint panel with the first fingerprint panel;
4) go up cavity tool 11 and descend to and lower cavity tool 12 closure, the cavity is sealed and through the 15 evacuation of evacuation module, two fingerprint panels reach the laminating position in advance from top to bottom, then laminate to preset position slowly with invariable speed, and this solidification UV light source is from up UV glue on shining the second fingerprint panel down, and illumination intensity is 200mw/cm 2 The time is 30s, the UV light source is turned off after the preset time is reached, the cavity is opened, and the attached product is left on the lower cavity jig 12;
5) the manipulator 23 takes out the product and puts into the side curing jig 21, the second transfer module 22 moves to the side curing position, 2 side curing UV light sources 24 irradiate simultaneously, and the illumination intensity is 1500mw/cm 2 The time is 10s, the curing of 2 long sides is completed, the side curing jig 21 is rotated by 90 degrees, 2 side curing UV light sources 24 irradiate simultaneously, and the curing of 2 short sides is completed; due to the shielding of the process coating and the positioning mark, the energy irradiated on the glue after the UV light passes through is weak and is not enough to be completely cured, so a side curing process is needed, and the UV light source irradiates from the side to cure the uncured glue;
6) the second transfer module 22 moves to the unloading position to unload.
Example 2
A thinning method of a fingerprint panel is characterized in that two fingerprint panels are combined and sealed according to the sealing method of embodiment 1; the jointed product is placed in strong acid for etching and thinning the glass substrate, and the strong acid is 58-62% of hydrofluoric acid and 58-62% of sulfuric acid; after etching is finished, the upper layer glass and the lower layer glass of the UV adhesive are cut through by adopting a laser cutting process, only the glass containing a fingerprint area is left, and separation of two fingerprint panels and cutting of the fingerprint area are realized.
The fingerprint area of 2 fingerprint panels is inwards, and the glass area is sealed outwards, and sealed back strong acid only can contact with the glass and the glue in the outside, and the fingerprint area is protected, consequently need not anti acid film, and once can realize etching when two fingerprint panels, and is efficient. The UV glue between two fingerprint panels, the inside groined type has realized the supporting role, and the frame is glued to interior mouthful font and has played the effect of barricade, and the frame is glued to outer mouthful font and is glued the cooperation with interior mouthful font frame and can effectively prevent that strong acid etching solution from getting into inside, and the protection fingerprint region does not receive the corruption. In addition, each area of the panel can realize relatively independent sealing and integral sealing, thereby realizing the purpose of strong acid etching resistance.
The above embodiments are only used to further illustrate the sealing and thinning method of the fingerprint panel of the present invention, but the present invention is not limited to the embodiments, and any simple modifications, equivalent changes and modifications made to the above embodiments according to the technical essence of the present invention fall within the protection scope of the technical solution of the present invention.
Claims (10)
1. A method of sealing a fingerprint panel, comprising: the method comprises the following steps that two fingerprint panels are attached and sealed through sealing equipment, wherein the sealing equipment comprises a main fixing module and a side fixing module, the main fixing module comprises an upper cavity jig, a lower cavity jig, a glue dispensing module, a first transfer module and a vacuumizing module, and the lower cavity jig is provided with a main curing UV light source; the side fixing module is provided with a side fixing UV light source; the sealing method comprises the following steps:
1) placing the first fingerprint panel in the lower cavity jig with the fingerprint surface facing downwards, driving the lower cavity jig to move to the position below the upper cavity jig by the first transfer module, and enabling the upper cavity jig to descend to adsorb the first fingerprint panel and ascend for waiting;
2) placing the second fingerprint panel in the lower cavity jig with the fingerprint surface facing upwards, driving the lower cavity jig to move to the dispensing module by the first transfer module to dispense UV (ultraviolet) glue, and then moving to the position below the upper cavity jig;
3) the upper cavity jig is lowered to be closed with the lower cavity jig, the cavity is sealed and vacuumized through the vacuumizing module, so that the first fingerprint panel and the second fingerprint panel are attached, the UV glue is cured by the curing UV light source from bottom to top, and the cavity is opened after curing is completed;
4) and transferring the attached product to a side fixing module, and curing the UV glue from the side direction by adopting a side curing UV light source.
2. The sealing method of a fingerprint panel according to claim 1, wherein: the fixing module also comprises an alignment module, the alignment module comprises a camera and a correction platform, and the correction platform is arranged in the lower cavity jig; and in the step 3), the image acquisition and alignment of the first fingerprint panel and the second fingerprint panel are carried out through a camera, and the position of the second fingerprint panel is corrected through a correction platform so as to be superposed with the first fingerprint panel.
3. The sealing method of a fingerprint panel according to claim 1, wherein: the side fixing module further comprises a side curing jig, a second transfer module and a manipulator, in the step 4), the attached product is placed in the side curing jig through the manipulator, and the second transfer module drives the side curing jig to move to a side curing UV light source for side curing.
4. The sealing method of a fingerprint panel according to claim 3, wherein: the lateral solidification jig can horizontally rotate; simultaneously curing two sides of the attached product; and then the lateral solidification fixture rotates by 90 degrees to solidify the other two sides of the jointed product.
5. The sealing method of a fingerprint panel according to claim 1, wherein: the fixed module is also provided with a pre-curing UV light source matched with the dispensing module, and in the step 2), dispensing comprises
a) Carrying out # -shaped dispensing on the second fingerprint panel;
b) carrying out square glue dispensing on the second fingerprint panel to form inner frame glue positioned at the outer side of the square glue dispensing;
c) pre-curing by adopting a pre-curing UV light source;
d) and carrying out square glue dispensing on the second fingerprint panel to form outer frame glue positioned on the outer side of the inner frame glue.
6. The sealing method of a fingerprint panel according to claim 5, wherein: the pre-curing is carried out in a mode that the pre-curing UV light source and the second fingerprint panel are relatively translated, and the pre-curing UV illumination intensity is 400-600 mw/cm 2 The translation speed is 10-30 mm/s.
7. The sealing method of a fingerprint panel according to claim 1, wherein: in the step 3), the UV illumination intensity of the curing is 150-300 mw/cm 2 The time is 20-40 s; in the step 4), the UV illumination intensity of side curing is 1400-1600 mw/cm 2 The time is 8-15 s.
8. A thinning method of a fingerprint panel is characterized by comprising the following steps:
1) performing combined sealing on two fingerprint panels according to the sealing method of any one of claims 1 to 7;
2) etching the back of the jointed product to thin the product;
3) the two fingerprint panels were separated.
9. The thinning method of the fingerprint panel according to claim 8, wherein: the fingerprint panel comprises a glass substrate, and in the step 2), the attached product is placed in strong acid for etching and thinning.
10. The thinning method of the fingerprint panel according to claim 8, wherein: the fingerprint panel is provided with a plurality of fingerprint areas, and the UV glue is coated in intervals of the fingerprint areas; in the step 3), cutting the UV glue coating area through laser cutting equipment.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210884512.3A CN115124252B (en) | 2022-07-25 | 2022-07-25 | Sealing and thinning method of fingerprint panel |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210884512.3A CN115124252B (en) | 2022-07-25 | 2022-07-25 | Sealing and thinning method of fingerprint panel |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN115124252A true CN115124252A (en) | 2022-09-30 |
| CN115124252B CN115124252B (en) | 2023-11-21 |
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| CN202210884512.3A Active CN115124252B (en) | 2022-07-25 | 2022-07-25 | Sealing and thinning method of fingerprint panel |
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Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2002318378A (en) * | 2001-04-22 | 2002-10-31 | Mikuni Denshi Kk | Method for assembling liquid crystal display device and its device |
| CN1562841A (en) * | 2004-04-09 | 2005-01-12 | 信利半导体有限公司 | Method for fabricating organic electroluminescent display and back cover made from glass |
| TWM390947U (en) * | 2010-06-07 | 2010-10-21 | Lin-Cun Jiang | Systematic structure device for automatically dispensing and adhering of UV hydrogel |
| CN103553369A (en) * | 2013-10-11 | 2014-02-05 | 南京熊猫电子股份有限公司 | Glass fitting device |
| CN203855515U (en) * | 2014-04-11 | 2014-10-01 | 深圳市远东皓星科技有限公司 | Device for laminating and aligning glass panels |
| CN114315164A (en) * | 2021-12-30 | 2022-04-12 | 苏州凯利昂光电科技有限公司 | Method for thinning laminated ultrathin glass |
| CN114591002A (en) * | 2022-04-11 | 2022-06-07 | 业泓科技(成都)有限公司 | Thinning method of fingerprint identification module |
-
2022
- 2022-07-25 CN CN202210884512.3A patent/CN115124252B/en active Active
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2002318378A (en) * | 2001-04-22 | 2002-10-31 | Mikuni Denshi Kk | Method for assembling liquid crystal display device and its device |
| CN1562841A (en) * | 2004-04-09 | 2005-01-12 | 信利半导体有限公司 | Method for fabricating organic electroluminescent display and back cover made from glass |
| TWM390947U (en) * | 2010-06-07 | 2010-10-21 | Lin-Cun Jiang | Systematic structure device for automatically dispensing and adhering of UV hydrogel |
| CN103553369A (en) * | 2013-10-11 | 2014-02-05 | 南京熊猫电子股份有限公司 | Glass fitting device |
| CN203855515U (en) * | 2014-04-11 | 2014-10-01 | 深圳市远东皓星科技有限公司 | Device for laminating and aligning glass panels |
| CN114315164A (en) * | 2021-12-30 | 2022-04-12 | 苏州凯利昂光电科技有限公司 | Method for thinning laminated ultrathin glass |
| CN114591002A (en) * | 2022-04-11 | 2022-06-07 | 业泓科技(成都)有限公司 | Thinning method of fingerprint identification module |
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| Publication number | Publication date |
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| CN115124252B (en) | 2023-11-21 |
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