CN203695522U - Sealant front dust removal device between flip chip and flexible printed circuit board - Google Patents
Sealant front dust removal device between flip chip and flexible printed circuit board Download PDFInfo
- Publication number
- CN203695522U CN203695522U CN201420008413.XU CN201420008413U CN203695522U CN 203695522 U CN203695522 U CN 203695522U CN 201420008413 U CN201420008413 U CN 201420008413U CN 203695522 U CN203695522 U CN 203695522U
- Authority
- CN
- China
- Prior art keywords
- blowing mouth
- sealing
- flexible pcb
- bolt
- fixed
- 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.)
- Expired - Lifetime
Links
- 239000000428 dust Substances 0.000 title claims abstract description 49
- 239000000565 sealant Substances 0.000 title abstract 3
- 238000007664 blowing Methods 0.000 claims abstract description 51
- 238000007789 sealing Methods 0.000 claims description 26
- NJPPVKZQTLUDBO-UHFFFAOYSA-N novaluron Chemical compound C1=C(Cl)C(OC(F)(F)C(OC(F)(F)F)F)=CC=C1NC(=O)NC(=O)C1=C(F)C=CC=C1F NJPPVKZQTLUDBO-UHFFFAOYSA-N 0.000 claims description 18
- 239000013078 crystal Substances 0.000 claims description 12
- 238000003756 stirring Methods 0.000 claims description 2
- 238000003825 pressing Methods 0.000 abstract description 3
- 230000000694 effects Effects 0.000 abstract 1
- 210000003128 head Anatomy 0.000 description 11
- 239000002184 metal Substances 0.000 description 6
- 238000010586 diagram Methods 0.000 description 4
- 238000000034 method Methods 0.000 description 4
- 238000003466 welding Methods 0.000 description 4
- 238000004519 manufacturing process Methods 0.000 description 2
- 238000012536 packaging technology Methods 0.000 description 2
- 238000004026 adhesive bonding Methods 0.000 description 1
- 238000004140 cleaning Methods 0.000 description 1
- 230000002950 deficient Effects 0.000 description 1
- 238000005538 encapsulation Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000007667 floating Methods 0.000 description 1
- 239000003292 glue Substances 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 239000007769 metal material Substances 0.000 description 1
- 238000004806 packaging method and process Methods 0.000 description 1
- 238000010926 purge Methods 0.000 description 1
Landscapes
- Laser Beam Processing (AREA)
- Cleaning In General (AREA)
Abstract
The utility model provides a sealant front dust removal device between a flip chip and a flexible printed circuit board. An air blowing nozzle is fixed on an air nozzle seat through a positioning bolt and uses the positioning bolt as a shaft for rotary angle adjustment. The air nozzle seat is fixed on a supporting column through a U-shape groove-shaped air nozzle seat positioning hole and a bolt, and the height of the air blowing nozzle is adjusted along the air nozzle seat positioning hole. The supporting column and a base shaft positioned through a positioning groove and a set screw, and the lateral position of the air blowing nozzle is adjusted by turning the supporting column. A cross beam perpendicular to the main column is horizontally arranged on a main column, perpendicular to the base shaft and fixed on the main column through a U-shape groove-shaped cross beam positioning hole and a knurling screw, and the horizontal position of the air blowing nozzle is adjusted by adjusting the knurling screw. The sealant front dust removal device is further provided with a laser transmitter, a dust sucking and collecting device and a pressing wheel, the problem of lead pin breakage caused by overlarge stress can be effectively solved, the dust removal effect is good, and the working efficiency is greatly improved.
Description
Technical field
The utility model relates to a kind of flat-faced screen and drives the front dust arrester of chip sealing packaging system, the particularly sealing between a kind of crystal covered chip and flexible PCB.
Background technology
Flat-paneled display screens drive the lifting of chip along with flat-paneled display screens resolution ratio, and chip pin quantity is corresponding increase also, and the distance between chip pin is also contracted to 20-25um.In current packaging technology, single chips production time has become an important indicator of equipment performance, requires on this basis equipment to run up and is absolutely necessary.Because most equipment motion is metal material, the friction running up in process must produce the metal micronic dust of some naked eyes impalpables, in the time that metal micronic dust descends slowly and lightly between chip pin, can make pin short circuit, causes driving chip failure.
Although before chip and flexible PCB welding press, pin is carried out to dedusting action.But to before sealing, pin still can expose a period of time in air after welding press.Can see because micronic dust size is not naked eyes, thus be difficult to take precautions against, if now in air floating metal micronic dust be adsorbed to around pin, in later stage sealing process, can there is metal micronic dust and flow and be shifted with glue material.When metal micronic dust touches between two pins of chip, just likely cause pin short circuit, and then cause chip failure, Here it is need to design the major reason of dust arrester before sealing.In the time of sealing, the existence of micronic dust foreign matter also can increase the generation of sealing bubble in addition.So before sealing, can around carry out again one-time dedusting action to the chip of pressing, can effectively reduce the short-circuit failure that metal micronic dust causes and the generation that reduces sealing bubble.
Because chip before sealing and flexible PCB have completed welding press, the pin after welding press is quite fragile.If use sticky wheel to stick dedusting, can cause pin breakage, heavy damage chip quality, causes defective products to scrap.If remove micronic dust by blowing device, the micronic dust blowing down due to part does not thoroughly disappear to encapsulation operating mode scene, and the micronic dust that makes to blow down is produced to secondary pollution.
Utility model content
The purpose of this utility model is to solve current flat-paneled display screens to drive the chip technical problem that sealing front surface micronic dust cannot thoroughly be removed after crystal covered chip and flexible PCB pressing.
For achieving the above object, the technical solution of the utility model is as follows:
Provide the sealing between a kind of crystal covered chip and flexible PCB front dust arrester, comprise pedestal axle, be placed on pedestal axle and two the parallel support posts vertical with pedestal axle, the head tree being fixedly connected with pedestal axle one end, be fixed on the tuyere seat on head tree one side support post and be installed on the blowing mouth on tuyere seat, described blowing mouth is fixed on tuyere seat by bolt, and blowing mouth rotates adjusting angle taking bolt as axle; Described tuyere seat is fixed on described support post with bolt by U-shaped groove shape tuyere seat locating hole, and the height of blowing mouth regulates along tuyere seat locating hole; Between described support post and described pedestal axle, position by locating slot and set screw, regulate described blowing mouth left and right to position by stirring support post; On described head tree, be provided with crossbeam perpendicular to head tree level, beam vertical is in described pedestal axle, and crossbeam is fixed on head tree with knurly screw by U-shaped groove shape crossbeam locating hole, regulates described blowing mouth fore-and-aft direction position by degree of tightness knurly screw.
Described tuyere seat top planes is provided with generating laser.
Described blowing mouth adopts upper two next circle three hole tuyeres.
On described pedestal axle, between described two support posts, be provided with flexible PCB base for supporting.
A support post away from described head tree is provided with suction dust collector, and suction dust collector is fixed on described support post outside by U-shaped groove shape locating hole with bolt, and elasticity bolt regulates suction dust collector height; The suction nozzle of suction dust collector is circular-arc, and after suction nozzle, STH is connected with external vacuum extractor.In described suction nozzle inner chamber, also can be provided with pinch roller, suction nozzle peak with heading position exceeds the inclined to one side inner side of pinch roller.
In the gas circuit between described blowing mouth and source of the gas, be provided with air pressure flowmeter.
The air-flow of described blowing mouth is sent to blowing mouth by magnetic valve, and the open and close controlling end of this magnetic valve is connected with sealing board fixture actuating signal.
Compared with prior art, the utility model adopts air pressure to blow down mode, removes with respect to using sticky wheel to be stained with, and can effectively avoid because of the stressed excessive problem that causes pin breakage.For the inside of chip and flexible PCB combination, the whirlpool wind post that blowing mouth forms can effectively enter and remove in addition, and sticky wheel cannot complete; Suction dust collector of the present utility model can be collected the micronic dust being blown down effectively, avoids micronic dust to form secondary pollution to chip; The signal that adopts board fixture location is controlled in the utility model blowing in addition, can coordinate the automatic operation of board to carry out real time cleaning, accomplish clean and produce synchronously, not affect the effective production time of board, can improve the yield of sealing packaging technology, effectively reduce chip failure rate.
Brief description of the drawings
Fig. 1 is the utility model structural representation.
Fig. 2 is blowing mouth structural representation.
Fig. 3 is the beam mounting structure schematic diagram of adjusting for blowing mouth fore-and-aft direction position.
Fig. 4 is the support post mounting structure schematic diagram that blowing mouth left and right directions position is adjusted.
Fig. 5 is blowing mouth height and angle adjustment mechanism schematic diagram.
Fig. 6 is suction dust collector and pressure roller structure schematic diagram.
In figure: 1 blowing mouth, 101 blowing mouth holes, 102 blowing mouth installing holes, 2 tuyere seats, 201 tuyere seat locating holes, 3 support posts, 4 pedestal axles, 5 crossbeams, 501 knurly screws, 502 crossbeam locating holes, 6 base for supporting, 7 pinch rollers, 8 suction dust collectors, 801 suction dust collector locating holes, 802 suction nozzles, 9 generating lasers, 10 bolts, 11 head trees, 12 bolts.
Detailed description of the invention
Below in conjunction with accompanying drawing, the utility model is further described.
Blowing mouth 1 is fixed on tuyere seat 2 by bolt 12, blowing mouth 1 can bolt 12 be axle rotation adjusting blowing angle, blowing mouth hole 101 is upper two next three circular holes, upper two vent needles carry out dedusting to chip both sides, next vent needle carries out dedusting to chip and flexible PCB connecting inner pin, reaches chip internal and carries out all standing purging around; Tuyere seat 2 is fixed on support post 3 with bolt 10 by U-shaped groove shape tuyere seat locating hole 201, and the height of blowing mouth 1 can regulate by moving up and down tuyere seat 2 along tuyere seat locating hole 201; Between support post 3 and pedestal axle 4, position by locating slot and set screw, in the time producing the flexible PCB of different in width, as long as support post 3 is stirred in left and right, adjustable blowing mouth 1 left and right is to position; On head tree 11, be provided with crossbeam 5 perpendicular to head tree 1 level, crossbeam 5 is perpendicular to pedestal axle 4, and crossbeam 5 is fixed on head tree 11 with knurly screw 501 by U-shaped groove shape crossbeam locating hole 502, regulates blowing mouth 1 fore-and-aft direction position by degree of tightness knurly screw 501.When dedusting, for different length chip, by adjust the angle of blowing mouth 1, highly, front and back and position, left and right, make blast points fall within the front position of chip minor face.
Tuyere seat 2 top planes are provided with generating laser 9, adjusting when blowing mouth 1 position, assist location to control the position of blowing mouth 1 by the launch point of laser, guarantee that blowing mouth 1 can aim at chip exactly.
On pedestal axle 4, between two support posts 3, be provided with flexible PCB base for supporting 6, in dust arrester blowing process, by support base, 6 support at the flexible PCB back side, prevent that flexible PCB is subject to swirl type wind post to affect and shake, and avoids board gluing to impact.
A support post 3 away from head tree 11 is provided with suction dust collector 8, and suction dust collector 8 is fixed on support post 3 outsides by U-shaped groove shape locating hole 801 with bolt, and elasticity bolt regulates suction dust collector 8 height; The suction nozzle 802 of suction dust collector 8 is circular-arc, and the rear STH of suction nozzle 802 is connected with external vacuum extractor, makes suction nozzle 802 produce the interior pressure of inhaling and realizes dust-absorbing function.In suction nozzle 802 inner chambers, be provided with pinch roller 7, suction nozzle 802 peak with heading positions exceed pinch roller 7 inner side partially, in dust arrester blowing process, press, and 7 push down flexible PCB, avoid because the impact of wind post causes flexible PCB shake.
Gas circuit between blowing mouth 1 and source of the gas is provided with air pressure flowmeter, quantizes high accuracy control air pressure and flow, avoids that air pressure is excessive blows disconnected chip pin, and air pressure is too small can not dedusting.
Air-flow is sent to blowing mouth 1 by magnetic valve, the open and close controlling end of this magnetic valve is connected with sealing board fixture actuating signal, adopt the fixture actuating signal of sealing board to control the opening and closing of tuyere air-out, when board fixture clamps after flexible PCB, blowing magnetic valve is opened again, guarantees to blow action after flexible PCB is fixed again.
Claims (8)
1. dust arrester before the sealing between a crystal covered chip and flexible PCB, comprise pedestal axle, be placed on pedestal axle and two the parallel support posts vertical with pedestal axle, the head tree being fixedly connected with pedestal axle one end, be fixed on the tuyere seat on head tree one side support post and be installed on the blowing mouth on tuyere seat, it is characterized in that: described blowing mouth is fixed on tuyere seat by bolt, blowing mouth rotates adjusting angle taking bolt as axle; Described tuyere seat is fixed on described support post with bolt by U-shaped groove shape tuyere seat locating hole, and the height of blowing mouth regulates along tuyere seat locating hole; Between described support post and described pedestal axle, position by locating slot and set screw, regulate described blowing mouth left and right to position by stirring support post; On described head tree, be provided with crossbeam perpendicular to head tree level, beam vertical is in described pedestal axle, and crossbeam is fixed on head tree with knurly screw by U-shaped groove shape crossbeam locating hole, regulates described blowing mouth fore-and-aft direction position by degree of tightness knurly screw.
2. dust arrester before the sealing between crystal covered chip according to claim 1 and flexible PCB, is characterized in that: described tuyere seat top planes is provided with generating laser.
3. dust arrester before the sealing between crystal covered chip according to claim 1 and flexible PCB, is characterized in that: described blowing mouth adopts upper two next circle three hole tuyeres.
4. dust arrester before the sealing between crystal covered chip according to claim 1 and flexible PCB, is characterized in that: on described pedestal axle, between described two support posts, be provided with flexible PCB base for supporting.
5. dust arrester before the sealing between crystal covered chip according to claim 1 and flexible PCB, it is characterized in that: a support post away from described head tree is provided with suction dust collector, suction dust collector is fixed on described support post outside by U-shaped groove shape locating hole with bolt, and elasticity bolt regulates suction dust collector height; The suction nozzle of suction dust collector is circular-arc, and after suction nozzle, STH is connected with external vacuum extractor.
6. dust arrester before the sealing between crystal covered chip according to claim 5 and flexible PCB, is characterized in that: in described suction nozzle inner chamber, be provided with pinch roller, suction nozzle peak with heading position exceeds the inclined to one side inner side of pinch roller.
7. dust arrester before the sealing between crystal covered chip according to claim 1 and flexible PCB, is characterized in that: in the gas circuit between described blowing mouth and source of the gas, be provided with air pressure flowmeter.
8. dust arrester before the sealing between crystal covered chip according to claim 1 and flexible PCB, is characterized in that: the air-flow of described blowing mouth is sent to blowing mouth by magnetic valve, and the open and close controlling end of this magnetic valve is connected with sealing board fixture actuating signal.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420008413.XU CN203695522U (en) | 2014-01-07 | 2014-01-07 | Sealant front dust removal device between flip chip and flexible printed circuit board |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420008413.XU CN203695522U (en) | 2014-01-07 | 2014-01-07 | Sealant front dust removal device between flip chip and flexible printed circuit board |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203695522U true CN203695522U (en) | 2014-07-09 |
Family
ID=51046021
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420008413.XU Expired - Lifetime CN203695522U (en) | 2014-01-07 | 2014-01-07 | Sealant front dust removal device between flip chip and flexible printed circuit board |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203695522U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108080347A (en) * | 2017-09-27 | 2018-05-29 | 苏州诺百斯自动化科技有限公司 | A kind of blowing dust collector for semiconductor packaging device |
-
2014
- 2014-01-07 CN CN201420008413.XU patent/CN203695522U/en not_active Expired - Lifetime
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108080347A (en) * | 2017-09-27 | 2018-05-29 | 苏州诺百斯自动化科技有限公司 | A kind of blowing dust collector for semiconductor packaging device |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20140709 |