CN214225340U - Low-cost simple and easy tool of distinguishing fingerprint chip quality - Google Patents
Low-cost simple and easy tool of distinguishing fingerprint chip quality Download PDFInfo
- Publication number
- CN214225340U CN214225340U CN202023159882.6U CN202023159882U CN214225340U CN 214225340 U CN214225340 U CN 214225340U CN 202023159882 U CN202023159882 U CN 202023159882U CN 214225340 U CN214225340 U CN 214225340U
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- fingerprint chip
- pcb board
- chip
- upper cover
- base
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Abstract
The utility model provides a low-cost simple and easy tool of resolving fingerprint chip good or bad, including the PCB board, install the base of placing the fingerprint chip on the PCB board, be fixed with probe module on the base, be fixed with a plurality of probes on the probe module, simple and easy tool still includes the upper cover, the upper cover is used for compressing tightly fingerprint chip and makes the pin on the fingerprint chip pass through the probe and be connected with the pin electricity that corresponds on the PCB board, still be equipped with on the PCB board and be used for the row's needle interface of being connected with the external circuit electricity. The utility model provides a simple and easy tool of good or bad of fingerprint chip is distinguished to low-cost need not be in the same place fingerprint chip and PCB board welding, just can accomplish fingerprint chip's electrical property test, can not waste the manufacturing cost of anterior segment, also can not bring very big puzzlement for the reworking of back end.
Description
Technical Field
The utility model relates to a fingerprint chip detection area especially relates to a low-cost simple and easy tool of resolving fingerprint chip quality.
Background
The IQC (incoming material quality control) of the current factory chip can only detect the external dimension of the chip, and the electrical property of the chip can not be distinguished at all, and the chip can be judged whether the chip is good or not through testing after being welded on a PCB. However, once the electrical properties of the chip incoming material are degraded, the raw rice is cooked late. Not only wastes the production cost of the front section, but also brings great trouble to the rework of the rear section.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to overcome prior art's defect, provide a low-cost simple and easy tool of resolving fingerprint chip good or bad, need not weld fingerprint chip and PCB board together, just can accomplish fingerprint chip's electrical property test, the manufacturing cost of anterior segment can not be wasted, can not bring very big puzzlement for the reworking of back end yet.
The utility model discloses a realize like this:
the utility model provides a low-cost simple and easy tool of resolving fingerprint chip good or bad, including the PCB board, install the base of placing the fingerprint chip on the PCB board, be fixed with probe module on the base, be fixed with a plurality of probes on the probe module, simple and easy tool still includes the upper cover, the upper cover is used for compressing tightly fingerprint chip and makes the pin on the fingerprint chip pass through the probe and be connected with the pin electricity that corresponds on the PCB board, still be equipped with on the PCB board and be used for the row's needle interface of being connected with the external circuit electricity.
Preferably, the fingerprint chip is arranged on the chip mounting plate, the base is provided with a first groove for clamping the chip mounting plate, and the probe module is fixed in the first groove.
Preferably, a second groove for clamping the fingerprint chip is formed in the chip mounting plate, and the fingerprint chip is fixedly clamped with the chip mounting plate.
Preferably, the probe module faces the second groove.
Preferably, one end of the upper cover is hinged with the base.
Preferably, the other end of the upper cover is clamped and fixed with the base through a buckle.
Preferably, the upper cover is provided with an opening for exposing the fingerprint chip.
Preferably, the opening is a stepped hole.
The utility model discloses following beneficial effect has:
1. the utility model provides a low-cost simple and easy tool of resolving fingerprint chip good or bad, the fingerprint chip has formed a complete return circuit through the PCB board under probe and the base, be equal to fingerprint chip beading on the PCB board, the row's needle interface through the PCB board forms with the computer and is connected and just can accomplish the electrical property test to the fingerprint chip, the chip is then opened the upper cover again and takes out the chip to the test, put into the operation above the next chip that awaits measuring is repeated again, can circulate and test the electrical property of chip repeatedly. Therefore, the adverse chip inflow can be avoided, and the adverse effect on the rear end can be avoided. And maintenance personnel can conveniently overhaul the product.
2. The utility model provides a simple and easy tool of good or bad of fingerprint chip is distinguished to low-cost need not be in the same place fingerprint chip and PCB board welding, just can accomplish fingerprint chip's electrical property test, can not waste the manufacturing cost of anterior segment, also can not bring very big puzzlement for the reworking of back end.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the drawings without creative efforts.
Fig. 1 is a schematic diagram of a PCB board provided in an embodiment of the present invention;
fig. 2 is a partial enlarged view of fig. 1 according to an embodiment of the present invention;
fig. 3 is a top view of the upper cover according to the embodiment of the present invention;
fig. 4 is a partial enlarged view of fig. 3 according to an embodiment of the present invention;
fig. 5 is a side view of an upper cover according to an embodiment of the present invention;
fig. 6 is a schematic diagram of the upper cover according to the embodiment of the present invention being mounted on a PCB board through a base (when no chip is mounted);
fig. 7 is a partial enlarged view of fig. 6 according to an embodiment of the present invention;
fig. 8 is a side view of the upper cover disposed on the PCB board through the base according to the embodiment of the present invention;
fig. 9 is a partially enlarged view of the probe portion in fig. 8 according to an embodiment of the present invention.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts belong to the protection scope of the present invention.
In the description of the present invention, it is to be understood that the terms "center", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", and the like indicate orientations or positional relationships based on those shown in the drawings, and are merely for convenience of description and simplicity of description, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore, are not to be construed as limiting the present invention.
The terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature; in the description of the present invention, "a plurality" means two or more unless otherwise specified.
As shown in fig. 1-9, the embodiment of the utility model provides a low-cost simple and easy tool of resolving fingerprint chip quality, including PCB board 1, install the base 3 of placing fingerprint chip 2 on the PCB board 1, be fixed with probe module on the base 3, be fixed with a plurality of probes 4 on the probe module, simple and easy tool still includes upper cover 5, upper cover 5 is used for compressing tightly fingerprint chip 2 and makes first pin 6 on the fingerprint chip connect through probe 4 and PCB board 1 second pin 7 electricity that corresponds, still be equipped with on the PCB board 1 and be used for arranging needle interface 8 with the external circuit electricity is connected.
The utility model provides a simple and easy tool of good or bad of fingerprint chip is distinguished to low-cost need not be in the same place fingerprint chip and PCB board welding, just can accomplish fingerprint chip's electrical property test, can not waste the manufacturing cost of anterior segment, also can not bring very big puzzlement for the reworking of back end.
One end of the upper cover 5 is hinged with the base 3. The other end of the upper cover 5 is fixedly connected with the base 3 in a clamping mode through a buckle 9.
The upper cover 5 is provided with an opening 10 for exposing the fingerprint chip. The opening 10 is a stepped hole.
The utility model provides a low-cost simple and easy tool of resolving fingerprint chip is good or bad, its specific test method: put fingerprint chip 2 in the constant head tank, then close upper cover 5, under the effect of upper cover 5 this moment, the good ohmic contact of PIN foot and the 4 atress formation of probe that correspond on the fingerprint chip 2. Because probe 4 one end and chip PIN foot contact, the other end contacts with PCB board 1 below the base 3, and when 5 lids of upper cover closed on base 3, fingerprint chip 2 has formed a complete return circuit through probe 4 and PCB board 1 under the base 3, is equivalent to 2 direct welding of fingerprint chip on PCB board 1. And then the module is connected with a computer through the pin header 8 of the PCB 1 to complete the electrical performance test of the fingerprint chip 2, one chip is tested, then the upper cover is opened to take out the chip, the next chip to be tested is put in, the operation is repeated again, and the electrical performance of the chip can be tested repeatedly. Therefore, the adverse chip inflow can be avoided, and the adverse effect on the rear end can be avoided. And maintenance personnel can conveniently overhaul the product.
The utility model provides a low-cost simple and easy tool is used for differentiateing fingerprint chip supplied materials good or bad.
The utility model discloses low-cost, simple and easy, maneuverability is high, and it is effective to differentiate the method.
The utility model provides a low-cost simple and easy tool of resolving fingerprint chip is good or bad, easy operation differentiates the rate of accuracy and reaches 100%.
The utility model provides a low-cost simple and easy tool of resolving fingerprint chip is good or bad has considered in the aspect of structural design: the positioning precision of the chip is high, and the chip is convenient to take and place; considerations in PCBA design are: the counterpoint precision, anti ESD, EMC etc. disturb.
The above description is only a preferred embodiment of the present invention, and should not be taken as limiting the invention, and any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (8)
1. The utility model provides a low-cost simple and easy tool of distinguishing fingerprint chip is good or bad which characterized in that: including the PCB board, install the base of placing the fingerprint chip on the PCB board, be fixed with probe module on the base, be fixed with a plurality of probes on the probe module, simple and easy tool still includes the upper cover, the upper cover is used for compressing tightly the fingerprint chip and makes the pin on the fingerprint chip pass through the probe and is connected with the pin electricity that corresponds on the PCB board, still be equipped with on the PCB board and be used for the row needle interface of being connected with external circuit electricity.
2. The simple jig for discriminating the quality of a fingerprint chip according to claim 1, wherein: the fingerprint chip is installed on the chip mounting panel, set up the first recess of joint chip mounting panel on the base, probe module fixes in first recess.
3. The simple jig for discriminating the quality of a fingerprint chip according to claim 1, wherein: set up the second recess of joint fingerprint chip on the chip mounting panel, fingerprint chip is fixed with chip mounting panel joint.
4. The simple jig for discriminating the quality of a fingerprint chip according to claim 3, wherein: the probe module is opposite to the second groove.
5. The simple jig for discriminating the quality of a fingerprint chip according to claim 1, wherein: one end of the upper cover is hinged with the base.
6. The simple jig for discriminating the quality of a fingerprint chip according to claim 5, wherein: the other end of the upper cover is clamped and fixed with the base through a buckle.
7. The simple jig for discriminating the quality of a fingerprint chip according to claim 1, wherein: the upper cover is provided with an opening for exposing the fingerprint chip.
8. The simple jig for discriminating the quality of a fingerprint chip according to claim 7, wherein: the opening is a stepped hole.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202023159882.6U CN214225340U (en) | 2020-12-24 | 2020-12-24 | Low-cost simple and easy tool of distinguishing fingerprint chip quality |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202023159882.6U CN214225340U (en) | 2020-12-24 | 2020-12-24 | Low-cost simple and easy tool of distinguishing fingerprint chip quality |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN214225340U true CN214225340U (en) | 2021-09-17 |
Family
ID=77705160
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202023159882.6U Active CN214225340U (en) | 2020-12-24 | 2020-12-24 | Low-cost simple and easy tool of distinguishing fingerprint chip quality |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN214225340U (en) |
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2020
- 2020-12-24 CN CN202023159882.6U patent/CN214225340U/en active Active
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