CN208140822U - A kind of anti-interference test device of fingerprint chip - Google Patents
A kind of anti-interference test device of fingerprint chip Download PDFInfo
- Publication number
- CN208140822U CN208140822U CN201820639162.3U CN201820639162U CN208140822U CN 208140822 U CN208140822 U CN 208140822U CN 201820639162 U CN201820639162 U CN 201820639162U CN 208140822 U CN208140822 U CN 208140822U
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- China
- Prior art keywords
- fingerprint chip
- test
- conducting resinl
- circuit board
- test device
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Abstract
The utility model provides a kind of anti-interference test device of fingerprint chip, including the copper-plated test circuit board of test machine and surface many places, the test machine and test circuit board electrical connection, the conducting resinl being equipped with for being electrically connected fingerprint chip is tested at each copper facing of circuit board, it is not attached between conducting resinl at each copper facing, whole plate fingerprint chip is placed on when being tested on conducting resinl, due to being not attached between the conducting resinl at each copper facing, after pressing whole plate fingerprint chip, the current signal in conducting resinl under each fingerprint chip will not interact, therefore it will not be interfered with each other between each fingerprint chip, improve measuring accuracy.
Description
Technical field
The utility model relates to apparatus for testing chip, in particular to a kind of anti-interference test device of fingerprint chip.
Background technique
In recent years, with the fast development of fingerprint recognition and mobile payment, the demand of fingerprint chip has welcome explosive growth,
And during employing fingerprint chip, good picture quality, fingerprint chip have to pass through test in order to obtain, are referred to judgement
Whether the performance of line chip is good.
In volume production fingerprint chip, it is contemplated that efficiency needs to test more fingerprints on whole plate fingerprint chip simultaneously
Chip.Currently, the coupling of simulation finger and more fingerprint chips generallys use when testing more fingerprint chip synchronizations
Full wafer conducting resinl contacts the mode of more fingerprint chips simultaneously.When pressing whole plate fingerprint chip using this kind of mode, full wafer is led
Current signal in electric glue can interact, to make to interfere with each other between each fingerprint chip, reduce measuring accuracy.
Utility model content
The purpose of this utility model is to avoid interfering with each other between each fingerprint chip when testing whole plate fingerprint chip,
Improve measuring accuracy.
In order to achieve the above object, the utility model provides a kind of anti-interference test device of fingerprint chip, including test machine
With the copper-plated test circuit board in surface many places, the test machine and test circuit board electrical connection test each copper facing of circuit board
Place is equipped with the conducting resinl for being electrically connected fingerprint chip, is not attached between the conducting resinl at each copper facing.
It preferably, further include multiple for pressing the simulation finger for the fingerprint chip being placed on conducting resinl.
It preferably, further include the driving device for being electrically connected test machine, the driving device is for driving simulation finger.
Preferably, the quantity of the simulation finger is identical as the quantity of conducting resinl, the synchronous driving of driving device all simulations
Finger.
Preferably, the driving device is hydraulically operated equipment or pneumatic device.
Preferably, the test machine is equipped with display device, is used to show test result.
The utility model has the advantages that：Whole plate fingerprint chip is placed on when being tested on conducting resinl, due to
It is not attached between conducting resinl at each copper facing, after pressing whole plate fingerprint chip, in the conducting resinl under each fingerprint chip
Current signal will not interact, therefore will not interfere with each other between each fingerprint chip, improve measuring accuracy.
Detailed description of the invention
Fig. 1 is the structural schematic diagram of the anti-interference test device of fingerprint chip；
Fig. 2 is the schematic surface for testing circuit board.
Appended drawing reference：1- test machine；2- tests circuit board；21- copper；3- conducting resinl；4- simulates finger；5- driving device；
6- fingerprint chip.
Specific embodiment
As shown in Figure 1, the electrical connection of test machine 1 test circuit board 2 and driving device 5, test surface such as Fig. 2 of circuit board 2
20 copper facing 21 everywhere are shown with, but due to angle problem, Fig. 1 is merely illustrated at therein six.In Fig. 1, test circuit board 2
One piece is equipped at each copper facing for being electrically connected the conducting resinl 3 of fingerprint chip 6, therefore conducting resinl 3 has 24 pieces, but Fig. 1 by
Six pieces therein are merely illustrated in angle problem.
When testing fingerprint chip 6, whole plate fingerprint chip 6 need to be placed on conducting resinl 3, therefore whole plate fingerprint chip
6 have 24, but Fig. 1 is six therein since angle problem merely illustrates.
The lower section of driving device 5 is equipped with the simulation finger 4 for pressing fingerprint chip 6, and every simulation finger 4 is one corresponding
Fingerprint chip 6, therefore simulating finger has 24, but Fig. 1 since angle problem merely illustrates the six roots of sensation therein.
Driving device 5 uses hydraulically operated equipment or pneumatic device, for example, driving device 5 can be cylinder.Using surging or
The pneumatic driving device 5 of person, and unconventional motor driven simulate finger 4, it is ensured that pressing force in a certain range, avoid by
Pressure is excessive to damage fingerprint chip 6.
In test, test machine 1 controls driving device 5 and whole simulation fingers 4 is driven to press corresponding fingerprint chip simultaneously
6, fingerprint chip 6 issues current signal after being pressed, which successively reaches test through conducting resinl 3 and test circuit board 2
In machine 1, test machine 1 simultaneously tests whole fingerprint chips 6 according to whole current signals, so as to save the testing time,
Improve testing efficiency.
The current signal that fingerprint chip 6 issues is when by conducting resinl 3, due to being not attached between each conducting resinl 3, each conduction
Current signal in glue 3 will not interact, therefore will not interfere with each other between each fingerprint chip 6, improve measuring accuracy.
Test machine 1 be equipped with display device 11, the test result real-time display of whole plate fingerprint chip 6 in display device 11,
Staff is facilitated to judge whether the performance of fingerprint chip 6 is good.
Claims (6)
1. a kind of anti-interference test device of fingerprint chip, including the copper-plated test circuit board of test machine and surface many places, the survey
Test-run a machine and test circuit board electrical connection, it is characterized in that：It tests at each copper facing of circuit board and is equipped with for being electrically connected fingerprint chip
Conducting resinl, be not attached between the conducting resinl at each copper facing.
2. the anti-interference test device of fingerprint chip according to claim 1, it is characterized in that：It further include multiple for by pressing
The simulation finger of fingerprint chip on conducting resinl.
3. the anti-interference test device of fingerprint chip according to claim 2, it is characterized in that：It further include electrical connection test machine
Driving device, the driving device is for driving simulation finger.
4. the anti-interference test device of fingerprint chip according to claim 3, it is characterized in that：It is described simulation finger quantity with
The quantity of conducting resinl is identical, and finger is all simulated in the synchronous driving of driving device.
5. the anti-interference test device of fingerprint chip according to claim 3, it is characterized in that：The driving device is the dress that surges
It sets or pneumatic device.
6. the anti-interference test device of fingerprint chip according to claim 1, it is characterized in that：The test machine is equipped with display dress
It sets, is used to show test result.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820639162.3U CN208140822U (en) | 2018-04-28 | 2018-04-28 | A kind of anti-interference test device of fingerprint chip |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820639162.3U CN208140822U (en) | 2018-04-28 | 2018-04-28 | A kind of anti-interference test device of fingerprint chip |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208140822U true CN208140822U (en) | 2018-11-23 |
Family
ID=64310768
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201820639162.3U Active CN208140822U (en) | 2018-04-28 | 2018-04-28 | A kind of anti-interference test device of fingerprint chip |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN208140822U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115825702A (en) * | 2023-02-06 | 2023-03-21 | 镇江矽佳测试技术有限公司 | Fingerprint chip anti-interference testing device |
-
2018
- 2018-04-28 CN CN201820639162.3U patent/CN208140822U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115825702A (en) * | 2023-02-06 | 2023-03-21 | 镇江矽佳测试技术有限公司 | Fingerprint chip anti-interference testing device |
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