CN113172323A - BGA solder ball welding method and electromagnetic pulse welding equipment thereof - Google Patents

BGA solder ball welding method and electromagnetic pulse welding equipment thereof Download PDF

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Publication number
CN113172323A
CN113172323A CN202110536140.0A CN202110536140A CN113172323A CN 113172323 A CN113172323 A CN 113172323A CN 202110536140 A CN202110536140 A CN 202110536140A CN 113172323 A CN113172323 A CN 113172323A
Authority
CN
China
Prior art keywords
fixedly connected
electromagnetic pulse
welding
pulse welding
solder ball
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
CN202110536140.0A
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Chinese (zh)
Inventor
尹立孟
杨曼
姚宗湘
王刚
陈玉华
谢吉林
冉洋
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Chongqing University of Science and Technology
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Chongqing University of Science and Technology
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Chongqing University of Science and Technology filed Critical Chongqing University of Science and Technology
Priority to CN202110536140.0A priority Critical patent/CN113172323A/en
Publication of CN113172323A publication Critical patent/CN113172323A/en
Pending legal-status Critical Current

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    • BPERFORMING OPERATIONS; TRANSPORTING
    • B23MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23KSOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
    • B23K20/00Non-electric welding by applying impact or other pressure, with or without the application of heat, e.g. cladding or plating
    • B23K20/06Non-electric welding by applying impact or other pressure, with or without the application of heat, e.g. cladding or plating by means of high energy impulses, e.g. magnetic energy
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B23MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23KSOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
    • B23K20/00Non-electric welding by applying impact or other pressure, with or without the application of heat, e.g. cladding or plating
    • B23K20/26Auxiliary equipment

Abstract

The invention discloses a BGA tin ball welding method and electromagnetic pulse welding equipment thereof, belonging to the field of electromagnetic pulse welding equipment, comprising a welding equipment main body, wherein one side of the welding equipment main body is fixedly connected with an electromagnetic pulse welding system through a wire; according to the invention, when the electromagnetic pulse welding system is carried, the electric wire between the electromagnetic pulse welding system and the welding equipment main body is removed, then a worker screws the control bolt to enable the roller to be in contact with the ground, then the worker pulls the bottom plate out of the through groove by pulling the handle rod to enable the bottom plate to be separated from the rectangular plate, at the moment, the bottom end of the damping spring is not in contact with the ground, and finally the worker pushes the electromagnetic pulse welding system to carry the device, so that time and labor are saved.

Description

BGA solder ball welding method and electromagnetic pulse welding equipment thereof
Technical Field
The invention relates to the field of electromagnetic pulse welding equipment, in particular to a BGA tin ball welding method and electromagnetic pulse welding equipment thereof.
Background
The soldering tin is melted into liquid state by heating under the action of the soldering flux and enters the gaps of the metals to be soldered, and a metal alloy is formed on the surface of a soldered object to firmly connect the two metal bodies, but the soldering does not simply adhere the pins of the element and the bonding pads through the melted soldering flux, but tin in the soldering flux and copper are subjected to chemical reaction, the formed metal alloy is a new substance generated by the fact that tin and lead atoms in the soldering tin enter crystal lattices of the metals to be soldered, and the two metals are permanently and firmly connected together by virtue of the cohesion force between the atoms due to the mutual diffusion of shell layers of the tin and lead atoms; at present, most of the existing BGA solder ball welding methods adopt a hot melting welding method, but the method can generate a larger heat affected zone, so that the PCB has heat stress, and in order to avoid damaging other elements in an overheat environment, the heat treatment cannot be carried out after welding, so that the service life of the PCB can be influenced by the traditional welding method.
Electromagnetic pulse welds the striking that utilizes high-pressure electromagnetic force to produce in the twinkling of an eye, makes the novel welding method of two weldment seam, for traditional heat welding comes, can not produce great heat affected zone, but current equipment exists because of the great inconvenient transport that leads to of electromagnetic pulse welding system volume and leads to the relatively poor problem of steadiness to appointed position and installation back in the transport.
Disclosure of Invention
The present invention is directed to a method for soldering a BGA solder ball and an electromagnetic pulse soldering apparatus thereof, so as to solve the problems mentioned in the background art.
In order to achieve the purpose, the invention provides the following technical scheme:
an electromagnetic pulse welding device for BGA tin ball welding comprises a welding device main body, wherein one side of the welding device main body is fixedly connected with an electromagnetic pulse welding system through an electric wire, the bottom of the welding device main body is fixedly connected with a top plate, the bottom of the top plate is fixedly connected with a box body, an electronic component is arranged in the box body, rectangular grooves are fixedly connected to two sides of the box body respectively, a rectangular box is fixedly connected to the inside of each rectangular groove, fixing grooves are formed in two sides of the rectangular box respectively, a dustproof net is fixedly connected to the inside of each fixing groove, a plug board is inserted into the inside of the rectangular box, a heat dissipation fan is fixedly installed in the inside of each plug board, a threaded hole is formed in one side of the rectangular box, a fixing bolt is connected to the inside of each threaded hole, connecting pieces are fixedly installed on two sides of the electromagnetic pulse welding system through screws, one side of the connecting sheet is fixedly connected with a sleeve plate, one side of the sleeve plate is fixedly connected with a slide rail, the inside of the slide rail is connected with a connecting rod in a sliding manner, a vertical plate is inserted in the sleeve plate, the bottom end of the vertical plate and one end of the connecting rod are both fixedly connected with idler wheels, the front surface and the back surface of the sleeve plate are both provided with holes, control bolts are inserted in the holes, one end of each control bolt is connected with a nut in a threaded manner, the top end of the sleeve plate is fixedly connected with a handle, when the electromagnetic pulse welding system is carried, an electric wire between the electromagnetic pulse welding system and a welding equipment main body is removed, then a worker enables the idler wheels to be in contact with the ground by screwing the control bolts, then the worker pulls a handle rod to pull out the bottom plate from the through groove, so that the bottom plate is separated from the rectangular plate, and at the time, the bottom end of the damping spring is not in contact with the ground, at last the staff can conveniently carry this device through promoting electromagnetic pulse welding system, time saving and labor saving, the practicality of this device has been improved, the staff of being convenient for uses, when the distance between regulating wheel and ground, through controlling the quantity of control bolt and nut, and peg graft in the hole of difference, thereby can adjust the distance between gyro wheel and the ground, and carry to appointed position after, insert logical inslot with the floor, then adjust control bolt, make bottom plate and ground contact, thereby can prevent that this device from removing, the steadiness of this device has been improved.
As a further scheme of the invention: one side fixedly connected with baffle of riser, electromagnetic pulse welding system's bottom fixedly connected with damping spring, the baffle plays and carries out spacing effect to the riser, and damping spring plays and makes bottom plate and ground in close contact with's effect after removing to the assigned position, and then has improved the frictional force between bottom plate and the ground, has further improved the steadiness of this device.
As a still further scheme of the invention: the quantity of damping spring is a plurality of, a plurality of damping spring uses the form fixed connection of rectangle array at electromagnetic pulse welding system's lower surface, and a plurality of damping spring not only make the connection between rectangular plate and the electromagnetic pulse welding system more firm.
As a still further scheme of the invention: damping spring's bottom fixedly connected with rectangular plate, logical groove has been seted up to one side of rectangular plate, and the setting that leads to the groove plays and is convenient for dismantle the bottom plate and play and carry out spacing effect to the bottom plate.
As a still further scheme of the invention: the bottom plate is inserted in the through groove, a handle rod is fixedly connected to one side of the bottom plate, and the handle rod is arranged to take out the bottom plate from the through groove conveniently.
As a still further scheme of the invention: the lower surface fixedly connected with supporting shoe of box, the bottom of supporting shoe is provided with anti-skidding granule, and the supporting shoe plays the effect of supporting the box.
As a still further scheme of the invention: the one end fixedly connected with fixed block of connecting rod, the one end fixedly connected with dead lever of fixed block, the effect of steadiness between connecting rod and the riser can be strengthened in the setting of fixed block and dead lever.
As a still further scheme of the invention: the outer fixed surface of control bolt is connected with the non slipping spur, the one end fixedly connected with handle pole of picture peg, the non slipping spur makes the staff revolve soon more easily and revolves control bolt, and the setting of handle pole plays the effect that makes things convenient for the staff to carry and take the picture peg.
Compared with the prior art, the invention has the beneficial effects that:
1. according to the electromagnetic pulse welding device, the connecting piece, the sleeve plate, the sliding rail, the connecting rod, the vertical plate, the idler wheel, the hole, the control bolt and the nut are arranged, when the electromagnetic pulse welding system is carried, an electric wire between the electromagnetic pulse welding system and the welding equipment main body is detached, then a worker enables the idler wheel to be in contact with the ground by screwing the control bolt, then the worker pulls the bottom plate out of the through groove by pulling the handle rod, the bottom plate is separated from the rectangular plate, at the moment, the bottom end of the damping spring is not in contact with the ground, and finally the worker can carry the device conveniently by pushing the electromagnetic pulse welding system.
2. According to the invention, through the arrangement of the box body, the rectangular box, the dustproof net, the plug board, the heat dissipation fan and the fixing bolt, when the temperature in the box body is higher due to the fact that the electronic component works for a long time, the worker starts the heat dissipation fan, the heat dissipation fan is matched with the dustproof net to be arranged, the effect of accelerating air exchange between the inside and the outside of the box body is achieved, dust can be prevented from entering the box body in the air exchange process, the practicability of the device is further improved, when the heat dissipation fan is maintained, the worker can conveniently maintain and maintain the heat dissipation fan by holding the handle rod tightly and then taking out the plug board from the rectangular box body, and the worker can conveniently maintain and repair the heat dissipation fan.
3. According to the invention, when the distance between the roller and the ground is adjusted, the number of the control bolts and the control nuts are controlled and are inserted into different holes, so that the distance between the roller and the ground can be adjusted, the floor is inserted into the through groove after the roller is carried to a designated position, then the control bolts are adjusted, so that the bottom plate is in contact with the ground, the device can be prevented from moving, and the stability of the device is improved.
Drawings
FIG. 1 is a schematic structural view of the present invention;
FIG. 2 is a schematic view of the construction of the deck of the present invention;
FIG. 3 is a schematic view of a control bolt according to the present invention;
FIG. 4 is an enlarged view of the structure at A in FIG. 1 according to the present invention;
FIG. 5 is a schematic structural view of a base plate according to the present invention;
FIG. 6 is an enlarged view of the structure at B in FIG. 2 according to the present invention;
FIG. 7 is a schematic view of a rectangular box according to the present invention.
In the figure: 1. welding the device body; 2. an electric wire; 3. an electromagnetic pulse welding system; 4. a top plate; 5. a box body; 6. a rectangular box; 7. a dust screen; 8. inserting plates; 9. a heat dissipation fan; 10. fixing the bolt; 11. connecting sheets; 12. sheathing; 13. a slide rail; 14. a connecting rod; 15. a vertical plate; 16. a roller; 17. a hole; 18. a control bolt; 19. a nut; 20. a handle; 21. a baffle plate; 22. a damping spring; 23. a rectangular plate; 24. a through groove; 25. a base plate; 26. a handle bar; 27. a support block; 28. a fixed block; 29. fixing the rod; 30. anti-skid blocks; 31. a handle bar.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. 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.
Referring to fig. 1 to 7, in the embodiment of the present invention, an electromagnetic pulse welding apparatus for BGA solder ball welding includes a welding apparatus main body 1, one side of the welding apparatus main body 1 is fixedly connected to an electromagnetic pulse welding system 3 through a wire 2, a top plate 4 is fixedly connected to the bottom of the welding apparatus main body 1, a case 5 is fixedly connected to the bottom of the top plate 4, an electronic component is disposed inside the case 5, rectangular grooves are fixedly connected to both sides of the case 5, a rectangular case 6 is fixedly connected to the inside of the rectangular groove, fixing grooves are formed on both sides of the rectangular case 6, a dust screen 7 is fixedly connected to the inside of the fixing grooves, a plug board 8 is inserted into the inside of the rectangular case 6, a heat dissipation fan 9 is fixedly mounted inside the plug board 8, a threaded hole is formed on one side of the rectangular case 6, a fixing bolt 10 is threadedly connected to the inside of the threaded hole, connecting pieces 11 are fixedly mounted on both sides of the electromagnetic pulse welding system 3 through screws, one side of the connecting sheet 11 is fixedly connected with a sleeve plate 12, one side of the sleeve plate 12 is fixedly connected with a slide rail 13, the inside of the slide rail 13 is connected with a connecting rod 14 in a sliding manner, a vertical plate 15 is inserted into the sleeve plate 12, the bottom end of the vertical plate 15 and one end of the connecting rod 14 are both fixedly connected with idler wheels 16, the front surface and the back surface of the sleeve plate 12 are both provided with holes 17, control bolts 18 are inserted into the holes 17, one end of each control bolt 18 is connected with a nut 19 in a threaded manner, the top end of the sleeve plate 12 is fixedly connected with a handle 20, when the electromagnetic pulse welding system 3 is carried, an electric wire 2 between the electromagnetic pulse welding system 3 and a welding equipment main body 1 is disassembled, then an operator enables the idler wheels 16 to be in contact with the ground by screwing the control bolts 18, then the operator pulls out a bottom plate 25 from a through pulling a handle rod 26 to separate the bottom plate 25 from a rectangular plate 23, at the time, the bottom end of a damping spring 22 is not in contact with the ground, finally, the worker can conveniently carry the device by pushing the electromagnetic pulse welding system 3, time and labor are saved, the practicability of the device is improved, the use of the device is convenient, when the temperature inside the box body 5 is high due to the long-time work of electronic components, the worker starts the heat dissipation fan 9, the heat dissipation fan 9 is matched with the dust screen 7 to play a role in accelerating the air exchange inside and outside the box body 5 by arranging the box body 5, the rectangular box 6, the dust screen 7, the plug board 8, the heat dissipation fan 9 and the fixing bolt 10, dust can be prevented from entering the box body 5 in the air exchange process by starting the heat dissipation fan 9, the practicability of the device is further improved, when the heat dissipation fan 9 is maintained, the worker can conveniently maintain and maintain the heat dissipation fan 9 by tightly holding the handle rod 31 and then taking the plug board 8 out of the rectangular box 6, make things convenient for the staff to overhaul, when the distance between adjusting roller 16 and the ground, through controlling the quantity of control bolt 18 and nut 19, and peg graft in different hole 17 to can adjust the distance between roller 16 and the ground, and carry to appointed position after, insert logical groove 24 with the floor in, then adjust control bolt 18, make bottom plate 25 and ground contact, thereby can prevent that this device from removing, improved the steadiness of this device.
The bottom of the electromagnetic pulse welding system 3 is fixedly connected with a damping spring 22, the damping spring 22 plays a role in limiting the vertical plate 15, and the damping spring 22 plays a role in enabling the bottom plate 25 to be in close contact with the ground after moving to a specified position, so that the friction force between the bottom plate 25 and the ground is improved, and the stability of the device is further improved; the number of the damping springs 22 is several, the damping springs 22 are fixedly connected to the lower surface of the electromagnetic pulse welding system 3 in a rectangular array mode, and the damping springs 22 not only enable the connection between the rectangular plate 23 and the electromagnetic pulse welding system 3 to be more stable; the bottom of the damping spring 22 is fixedly connected with a rectangular plate 23, one side of the rectangular plate 23 is provided with a through groove 24, and the through groove 24 is arranged to facilitate the disassembly of the bottom plate 25 and limit the bottom plate 25; a bottom plate 25 is inserted into the through groove 24, a handle rod 26 is fixedly connected to one side of the bottom plate 25, and the handle rod 26 is arranged to take the bottom plate 25 out of the through groove 24 conveniently; the lower surface of the box body 5 is fixedly connected with a supporting block 27, the bottom of the supporting block 27 is provided with anti-skid particles, and the supporting block 27 plays a role in supporting the box body 5; one end of the connecting rod 14 is fixedly connected with a fixing block 28, one end of the fixing block 28 is fixedly connected with a fixing rod 29, and the fixing block 28 and the fixing rod 29 are arranged to enhance the stability between the connecting rod 14 and the vertical plate 15; the outer fixed surface of control bolt 18 is connected with non slipping spur 30, and the one end fixedly connected with handle pole 31 of picture peg 8, non slipping spur 30 make the staff twist soon more easily and control bolt 18, and the setting of handle pole 31 plays the effect that makes things convenient for the staff to carry picture peg 8.
The working principle of the invention is as follows: when the electromagnetic pulse welding system 3 is carried, the electric wire 2 between the electromagnetic pulse welding system 3 and the welding equipment main body 1 is removed, then a worker screws the control bolt 18 to enable the roller 16 to be contacted with the ground, then the worker pulls the handle rod 26 to pull the bottom plate 25 out of the through groove 24 to enable the bottom plate 25 to be separated from the rectangular plate 23, at the moment, the bottom end of the damping spring 22 is not contacted with the ground, finally, the worker can conveniently carry the device by pushing the electromagnetic pulse welding system 3, time and labor are saved, the practicability of the device is improved, the device is convenient for the worker to use, when the temperature inside the box body 5 is high due to long-time work of electronic components, the worker starts the heat dissipation fan 9, the heat dissipation fan 9 is matched with the dust screen 7 to play a role in accelerating air exchange inside and outside the box body 5, but also can avoid in the in-process dust that carries out the air exchange enters into box 5, the practicality of this device has further been improved, when maintaining heat dissipation fan 9, the staff is through holding handle pole 31 tightly, then take out picture peg 8 from rectangle case 6, and then can conveniently maintain and safeguard heat dissipation fan 9, make things convenient for the staff to overhaul, when adjusting the distance between gyro wheel 16 and the ground, through controlling control bolt 18 and nut 19's quantity, and peg graft in different hole 17, thereby can adjust the distance between gyro wheel 16 and the ground, and carry to the assigned position after, insert logical groove 24 with the floor, then adjust control bolt 18, make bottom plate 25 and ground contact, thereby can prevent this device from removing, the steadiness of this device has been improved.
A method for BGA solder ball soldering includes: the welding method comprises the steps of workpiece alignment, soldering flux coating, hot air drying, welding and cleaning after welding, wherein electromagnetic pulse welding is used for welding, and electromagnetic pulse welding equipment is the device.
The above description is only for the preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art should be considered to be within the technical scope of the present invention, and the technical solutions and the inventive concepts thereof according to the present invention should be equivalent or changed within the scope of the present invention.

Claims (10)

1. The utility model provides an electromagnetic pulse welding equipment for BGA tin ball welding, includes welding equipment main part (1), its characterized in that: one side of the welding equipment main body (1) is fixedly connected with an electromagnetic pulse welding system (3) through an electric wire (2), the bottom of the welding equipment main body (1) is fixedly connected with a top plate (4), the bottom of the top plate (4) is fixedly connected with a box body (5), an electronic component is arranged inside the box body (5), rectangular grooves are fixedly connected to the two sides of the box body (5), a rectangular box (6) is fixedly connected to the inside of each rectangular groove, fixing grooves are formed in the two sides of the rectangular box (6), a dust screen (7) is fixedly connected to the inside of each fixing groove, a plug board (8) is inserted into the inside of the rectangular box (6), a heat dissipation fan (9) is fixedly installed inside the plug board (8), a threaded hole is formed in one side of the rectangular box (6), and a fixing bolt (10) is connected to the internal thread of the threaded hole, the utility model discloses an electromagnetic pulse welding system, including electromagnetic pulse welding system (3), connection piece (11) all have through screw fixed mounting in the both sides of electromagnetic pulse welding system (3), one side fixedly connected with lagging (12) of connection piece (11), one side fixedly connected with slide rail (13) of lagging (12), the inside sliding connection of slide rail (13) has connecting rod (14), peg graft in the inside of lagging (12) has riser (15), the bottom of riser (15) and the equal fixedly connected with gyro wheel (16) of one end of connecting rod (14), hole (17) have all been seted up at the front and the back of lagging (12), peg graft in the inside of hole (17) has control bolt (18), the one end threaded connection of control bolt (18) has nut (19), the top fixedly connected with handle (20) of lagging (12).
2. An electromagnetic pulse soldering apparatus for BGA solder ball bonding as claimed in claim 1 wherein: one side fixedly connected with baffle (21) of riser (15), the bottom fixedly connected with damping spring (22) of electromagnetic pulse welding system (3).
3. An electromagnetic pulse soldering apparatus for BGA solder ball bonding as claimed in claim 2, wherein: the number of the damping springs (22) is a plurality, and the damping springs (22) are fixedly connected to the lower surface of the electromagnetic pulse welding system (3) in a rectangular array mode.
4. An electromagnetic pulse soldering apparatus for BGA solder ball bonding as claimed in claim 2, wherein: the bottom of damping spring (22) fixedly connected with rectangular plate (23), logical groove (24) have been seted up to one side of rectangular plate (23).
5. An electromagnetic pulse soldering apparatus for BGA solder ball bonding as claimed in claim 4 wherein: a bottom plate (25) is inserted into the through groove (24), and a handle rod (26) is fixedly connected to one side of the bottom plate (25).
6. An electromagnetic pulse soldering apparatus for BGA solder ball bonding as claimed in claim 1 wherein: the lower surface of the box body (5) is fixedly connected with a supporting block (27), and anti-skid particles are arranged at the bottom of the supporting block (27).
7. An electromagnetic pulse soldering apparatus for BGA solder ball bonding as claimed in claim 1 wherein: one end of the connecting rod (14) is fixedly connected with a fixing block (28), and one end of the fixing block (28) is fixedly connected with a fixing rod (29).
8. An electromagnetic pulse soldering apparatus for BGA solder ball bonding as claimed in claim 1 wherein: the outer surface of the control bolt (18) is fixedly connected with an anti-skid block (30), and one end of the inserting plate (8) is fixedly connected with a handle rod (31).
9. A method for welding BGA solder balls is characterized in that: the method comprises the following steps: aligning a workpiece, coating soldering flux, drying by hot air, welding, and cleaning after welding, wherein the welding uses electromagnetic pulse welding.
10. The method of claim 9, wherein: the electromagnetic pulse welding is processed by the electromagnetic pulse welding equipment for BGA solder ball welding of claims 1-8.
CN202110536140.0A 2021-05-17 2021-05-17 BGA solder ball welding method and electromagnetic pulse welding equipment thereof Pending CN113172323A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202110536140.0A CN113172323A (en) 2021-05-17 2021-05-17 BGA solder ball welding method and electromagnetic pulse welding equipment thereof

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202110536140.0A CN113172323A (en) 2021-05-17 2021-05-17 BGA solder ball welding method and electromagnetic pulse welding equipment thereof

Publications (1)

Publication Number Publication Date
CN113172323A true CN113172323A (en) 2021-07-27

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Application publication date: 20210727

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