CN115124252B - Sealing and thinning method of fingerprint panel - Google Patents
Sealing and thinning method of fingerprint panel Download PDFInfo
- Publication number
- CN115124252B CN115124252B CN202210884512.3A CN202210884512A CN115124252B CN 115124252 B CN115124252 B CN 115124252B CN 202210884512 A CN202210884512 A CN 202210884512A CN 115124252 B CN115124252 B CN 115124252B
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- Prior art keywords
- fingerprint
- curing
- jig
- module
- fingerprint panel
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- 238000000034 method Methods 0.000 title claims abstract description 39
- 238000007789 sealing Methods 0.000 title claims abstract description 35
- 239000003292 glue Substances 0.000 claims abstract description 32
- 239000002253 acid Substances 0.000 claims abstract description 15
- 238000007711 solidification Methods 0.000 claims abstract description 4
- 230000008023 solidification Effects 0.000 claims abstract description 4
- 239000000758 substrate Substances 0.000 claims abstract description 4
- 238000012937 correction Methods 0.000 claims description 10
- 238000005530 etching Methods 0.000 claims description 10
- 238000012546 transfer Methods 0.000 claims description 10
- 239000011521 glass Substances 0.000 claims description 9
- 238000005286 illumination Methods 0.000 claims description 8
- 238000013519 translation Methods 0.000 claims description 5
- 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
- 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
- 238000005520 cutting process Methods 0.000 description 2
- 238000007599 discharging Methods 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
- 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
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 239000011159 matrix material Substances 0.000 description 1
- 239000012528 membrane Substances 0.000 description 1
- 238000001179 sorption measurement Methods 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
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, which are characterized in that sealing equipment with a solid module and a side solid module is adopted, fingerprint areas of two fingerprint panels are opposite, UV glue is adopted for bonding, and the sealing effect of the two fingerprint panels is achieved through surface solidification and side solidification; after sealing, the substrate is etched and thinned through strong acid, and the fingerprint area is protected after sealing, so that an acid-resistant film is not needed, consumable use is reduced, cost is reduced, process steps are simplified, and meanwhile, 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 sealing and thinning method of a fingerprint panel.
Background
In order to protect the fingerprint area from being corroded by strong acid, an acid-resistant film needs to be stuck to the fingerprint area, and then the fingerprint area is put into the strong acid for etching and thinning, and the acid-resistant film is removed after the thinning is finished. The technical scheme has the following problems: 1. acid-resistant films are expensive and are consumable materials, so that the cost of the fingerprint panel is high; 2. the film pasting equipment, the film tearing equipment and the like are required to be used for film pasting, film tearing and other processes, and the process is complex and has many steps; 3. one finished product can only etch and thin one fingerprint panel, so that the efficiency is low, and the productivity is difficult to improve. The above problems limit the development and application of fingerprint panels.
Disclosure of Invention
The invention provides a sealing and thinning method of a fingerprint panel aiming at the defects existing in the prior art.
In order to achieve the above object, the technical scheme of the present invention is as follows:
the sealing method of the fingerprint panels comprises the steps of adhering and sealing two fingerprint panels by adopting sealing equipment, wherein the sealing equipment comprises a self-fixing module and a side-fixing module, the self-fixing module comprises an upper cavity jig, a lower cavity jig, a dispensing module, a first transferring module and a vacuumizing module, and the lower cavity jig is provided with a self-curing UV light source; the side fixing module is provided with a side curing UV light source; the sealing method comprises the following steps:
1) Placing the fingerprint surface of the first fingerprint panel in a lower cavity jig downwards, driving the lower cavity jig to move below an upper cavity jig by a first transfer module, and enabling the upper cavity jig to descend to adsorb the first fingerprint panel and ascend to wait;
2) Placing the fingerprint surface of the second fingerprint panel in the lower cavity jig upwards, driving the lower cavity jig to move to the dispensing module for dispensing UV glue by the first transfer module, and then moving to the lower part of 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, the first fingerprint panel and the second fingerprint panel are attached, the UV glue is solidified from bottom to top by adopting the solidifying UV light source, and the cavity is opened after solidification 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, wherein 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 capturing images of 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 coincide with the first fingerprint panel.
Optionally, the side fixing module further includes a side curing jig, a second transferring module and a manipulator, in the step 4), the product after being attached is placed in the side curing jig by the manipulator, and the second transferring module drives the side curing jig to move to a side curing UV light source for side curing.
Optionally, the side curing jig comprises two sets of side curing UV light sources which are oppositely arranged, the side curing jig is moved between the two sets of side curing UV light sources, and the side curing jig can horizontally rotate; curing the two sides of the bonded product at the same time; and then the side curing jig rotates 90 degrees to cure the other two sides of the bonded product.
Optionally, the present fixing module is further provided with a pre-curing UV light source matched with the dispensing module, and in the step 2), the dispensing includes
a) Performing cross-shaped dispensing on the second fingerprint panel;
b) Performing mouth-shaped dispensing on the second fingerprint panel to form inner frame glue positioned at the outer side of the well-shaped dispensing;
c) Pre-curing by adopting a pre-curing UV light source;
d) And performing font dispensing on the second fingerprint panel to form outer frame glue positioned outside the inner frame glue.
Optionally, the pre-curing is performed in a mode that the pre-curing UV light source and the second fingerprint panel relatively translate, and the UV illumination intensity of the pre-curing is 400-600 mw/cm 2 The translation speed is 10-30 mm/s.
Optionally, in the step 3), the UV light 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 the 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) The two fingerprint panels are combined and sealed according to the sealing method;
2) Carrying out back etching thinning on the bonded product;
3) The two fingerprint panels are separated.
Optionally, the fingerprint panel includes a glass substrate, and in step 2), the bonded product is placed in a strong acid for etching and thinning.
Optionally, the fingerprint panel is provided with a plurality of fingerprint areas, and the UV glue is coated in the intervals of the fingerprint areas; in the step 3), the UV glue coating area is cut by a laser cutting device.
The beneficial effects of the invention are as follows:
1) The fingerprint areas of the 2 fingerprint panels are inwards adhered by adopting UV glue and the glue is solidified, so that the sealing effect of 2 pieces of glass is achieved, and the sealed fingerprint areas are protected, so that acid-resistant films are not needed, the consumption of consumables is reduced, the cost is reduced, and the process steps are simplified;
2) The sealed and attached 2 fingerprint panels can be simultaneously etched and thinned on the back, so that the working efficiency is improved.
Drawings
Fig. 1 is a schematic structural view of a sealing apparatus of embodiment 1;
FIG. 2 is a process flow diagram of the sealing method of example 1;
fig. 3 is a flow chart of the dispensing process of embodiment 1.
Detailed Description
The invention is further explained below with reference to the drawings and specific embodiments. The drawings of the present invention are merely schematic to facilitate understanding of the present invention, and specific proportions thereof may be adjusted according to design requirements.
Example 1
Referring to fig. 1, in the sealing method of the fingerprint panel of the embodiment, the adopted sealing device comprises a present fixing module 1 and a side fixing module 2. Wherein,
the fixing module 1 comprises an upper cavity jig 11, a lower cavity jig 12, a dispensing module 13, a first transferring 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 a curing UV light source and a correction 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 so as 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 products 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 disposed opposite to each other and in the translation path of the side curing jig 21, and the side curing jig 21 is horizontally rotatable.
Adopt above-mentioned sealing device to laminate two fingerprint panels and seal, refer to fig. 2, the process flow is:
1) Placing the first fingerprint panel into a lower cavity jig 12, enabling the fingerprint surface to be downward, enabling a first transfer module 14 to move to the position right below an upper cavity jig 11, enabling the upper cavity jig 11 to descend, adsorbing the first fingerprint panel through vacuum, and ascending and waiting;
2) Placing the second fingerprint panel into the lower cavity jig 12, enabling the fingerprint surface to face upwards, enabling the first transfer module 14 to move to the position below the dispensing module 13, taking an image of a product, dispensing and pre-curing, and enabling the first transfer module 14 to move to the position right below the upper cavity jig 11 after the product is dispensed and pre-cured; referring to fig. 3, dispensing UV glue on a surface of a second fingerprint panel includes: a) Performing cross-shaped dispensing, b) performing first-time mouth-shaped dispensing to form inner frame glue positioned at the outer side of the cross-shaped dispensing; c) The translational lower cavity jig 11 enables the second fingerprint panel to be pre-cured at a constant speed through the linear pre-curing UV light source 17, 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 stabilize the shape; d) Performing secondary mouth-shaped dispensing to form outer frame glue positioned outside the inner frame glue; specifically, the fingerprint panel is provided with a plurality of fingerprint areas arranged in a matrix, and the groined 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 an image capturing position to capture and position the first fingerprint panel and the second fingerprint panel, and the correction platform overlaps the correction position of the second fingerprint panel and the first fingerprint panel;
4) The upper cavity jig 11 is lowered to be closed with the lower cavity jig 12, the cavity is sealed and vacuumized through the vacuumizing module 15, the upper fingerprint panel and the lower fingerprint panel reach the pre-attaching position, then the upper fingerprint panel and the lower fingerprint panel are slowly attached to the preset positions at a constant speed, the curing UV light source irradiates UV glue on the second fingerprint panel from bottom to top, and the illumination intensity is 200mw/cm 2 The time is 30s, and the switch is closed after reaching the preset timeClosing the UV light source, opening the cavity, and leaving the attached product on the lower cavity jig 12;
5) The mechanical arm 23 takes out the product and puts it into the side curing jig 21, the second transfer module 22 moves to the side curing position, the 2 side curing UV light sources 24 irradiate simultaneously, the illumination intensity is 1500mw/cm 2 The time is 10s, the curing of 2 long sides is completed, the side curing jig 21 rotates by 90 degrees, and 2 side curing UV light sources 24 irradiate simultaneously, so that the curing of 2 short sides is completed; because the energy of UV light irradiated to the glue after passing through the process coating and the positioning mark is weak and insufficient for complete curing, a side curing process is required, and the UV light source irradiates from the side to cure the uncured complete glue;
6) The second transfer module 22 moves to the discharging position to perform discharging.
Example 2
A thinning method of fingerprint panels combines and seals two fingerprint panels according to the sealing method of embodiment 1; placing the bonded product in strong acid for etching and thinning the glass substrate, wherein the strong acid comprises 58% -62% of hydrofluoric acid and 58% -62% of sulfuric acid; after etching, the upper glass layer and the lower glass layer on the UV adhesive are cut by adopting a laser cutting process, and only the glass containing the fingerprint area is left, so that the separation of two fingerprint panels and the cutting of the fingerprint area are realized.
2 fingerprint area of fingerprint panel inwards, glass area outwards seals, and strong acid only can contact with glass and glue in the outside after the seal, and fingerprint area is protected, consequently need not acid-fast membrane, and once can realize the etching simultaneously of two fingerprint panels, efficient. The UV glue between two fingerprint panels, the supporting role is realized in inside groined type, and interior mouthful font frame glue plays the effect of barricade, and outer mouthful font frame glue and interior mouthful font frame glue cooperation can effectively prevent that strong acid etching solution from getting into inside, and protection fingerprint region is not corroded. In addition, each area of the panel can be sealed relatively independently and integrally, so that the purpose of strong acid etching resistance is achieved.
The above embodiments are only used for further explaining a sealing and thinning method of a fingerprint panel of the present invention, but the present invention is not limited to the embodiments, and any simple modification, equivalent variation and modification of the above embodiments according to the technical substance of the present invention falls within the scope of the technical solution of the present invention.
Claims (9)
1. A sealing method of a fingerprint panel is characterized in that: the fingerprint panel assembling and sealing method comprises the steps that sealing equipment is adopted to attach and seal two fingerprint panels, the sealing equipment comprises a self-fixing module and a side-fixing module, the self-fixing module comprises an upper cavity jig, a lower cavity jig, a dispensing module, a first transferring module and a vacuumizing module, and the lower cavity jig is provided with a self-curing UV light source; the side fixing module is provided with a side curing UV light source; the sealing method comprises the following steps:
1) Placing the fingerprint surface of the first fingerprint panel in a lower cavity jig downwards, driving the lower cavity jig to move below an upper cavity jig by a first transfer module, and enabling the upper cavity jig to descend to adsorb the first fingerprint panel and ascend to wait;
2) Placing the fingerprint surface of the second fingerprint panel in the lower cavity jig upwards, driving the lower cavity jig to move to the dispensing module for dispensing UV glue by the first transfer module, and then moving to the lower part of the upper cavity jig; the present module that fixes is equipped with the complex pre-curing UV light source of dispensing module, the point is glued and is included:
a) Performing cross-shaped dispensing on the second fingerprint panel,
b) Performing the mouth-shaped dispensing on the second fingerprint panel to form an inner frame glue positioned at the outer side of the well-shaped dispensing,
c) The pre-curing is performed using a pre-curing UV light source,
d) Performing font dispensing on the second fingerprint panel to form outer frame glue positioned outside the inner frame glue;
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, the first fingerprint panel and the second fingerprint panel are attached, the UV glue is solidified from bottom to top by adopting the solidifying UV light source, and the cavity is opened after solidification 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 further comprises an alignment module, wherein 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 capturing images of 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 coincide 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 transferring module and a manipulator, wherein in the step 4), the attached product is placed in the side curing jig through the manipulator, and the second transferring module drives the side curing jig to move to a side curing UV light source for side curing.
4. A method of sealing a fingerprint panel as claimed in claim 3, wherein: the side curing jig comprises two sets of side curing UV light sources which are oppositely arranged, wherein the side curing jig moves between the two sets of side curing UV light sources and can horizontally rotate; curing the two sides of the bonded product at the same time; and then the side curing jig rotates 90 degrees to cure the other two sides of the bonded product.
5. The sealing method of a fingerprint panel according to claim 1, wherein: and carrying out pre-curing in a mode that the pre-curing UV light source and the second fingerprint panel relatively translate, wherein the UV illumination intensity of the pre-curing is 400-600 mW/cm, and the translation speed is 10-30 mm/s.
6. 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, and the time is 20-40 s; in the step 4), the UV illumination intensity of the side curing is 1400-1600 mW/cm, and the time is 8-15 s.
7. The thinning method of the fingerprint panel is characterized by comprising the following steps of:
1) Performing combined sealing on two fingerprint panels according to the sealing method of any one of claims 1-6;
2) Carrying out back etching thinning on the bonded product;
3) The two fingerprint panels are separated.
8. The method of thinning a fingerprint panel according to claim 7, wherein: the fingerprint panel comprises a glass substrate, and in the step 2), the bonded product is placed in strong acid for etching and thinning.
9. The method of thinning a fingerprint panel according to claim 7, wherein: the fingerprint panel is provided with a plurality of fingerprint areas, and the UV glue is coated in the intervals of the fingerprint areas; in the step 3), the UV glue coating area is cut by a laser cutting device.
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 CN115124252A (en) | 2022-09-30 |
| CN115124252B true CN115124252B (en) | 2023-11-21 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202210884512.3A Active CN115124252B (en) | 2022-07-25 | 2022-07-25 | Sealing and thinning method of fingerprint panel |
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| Country | Link |
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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 |
|---|---|
| CN115124252A (en) | 2022-09-30 |
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