CN106709408B - Detection method and detection equipment of fingerprint sensor - Google Patents
Detection method and detection equipment of fingerprint sensor Download PDFInfo
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- CN106709408B CN106709408B CN201510788589.0A CN201510788589A CN106709408B CN 106709408 B CN106709408 B CN 106709408B CN 201510788589 A CN201510788589 A CN 201510788589A CN 106709408 B CN106709408 B CN 106709408B
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- fingerprint sensor
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06V—IMAGE OR VIDEO RECOGNITION OR UNDERSTANDING
- G06V40/00—Recognition of biometric, human-related or animal-related patterns in image or video data
- G06V40/10—Human or animal bodies, e.g. vehicle occupants or pedestrians; Body parts, e.g. hands
- G06V40/12—Fingerprints or palmprints
- G06V40/1335—Combining adjacent partial images (e.g. slices) to create a composite input or reference pattern; Tracking a sweeping finger movement
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Abstract
The invention discloses a detection method of a fingerprint sensor and detection equipment thereof, mainly providing a fingerprint sensor which is statically arranged on a test seat; then, the controller controls the pressing mechanism to move downwards to approach the test seat, and the pressing mechanism comprises a conductive element; and the conductive element is contacted with the fingerprint sensor on the test seat to detect the fingerprint sensor. Therefore, the controller is used for controlling the whole detection, the traditional manual detection mode is replaced by the pressing mechanism and the conductive element thereof, and the traditional manual detection mode is replaced by the automatic detection of the machine, so that the detection efficiency and the detection accuracy can be improved, and the cost can be effectively reduced.
Description
Technical Field
The present invention relates to a method and apparatus for detecting a fingerprint sensor, and more particularly, to a method and apparatus for automatically detecting a fingerprint sensor.
Background
Fingerprint identification is the most common one of the current biometric identification methods, and it mainly uses a fingerprint sensor to sense the fingerprint of a user and compare the fingerprint to identify the identity of the user.
Furthermore, after the fingerprint sensor is manufactured, the current conventional quality inspection is still performed mainly manually. Further, the detection of the conventional fingerprint sensor is performed in the following manner: firstly, a detection person properly places a fingerprint sensor to be tested in a detection seat, and certainly, in a factory with higher automation degree, the step may replace the manual work with a robot arm; then, the inspector presses his finger against the fingerprint sensor to perform the inspection.
However, the common manual detection method not only has difficulty in reducing the detection cost due to high labor cost; moreover, the detection process has a lot of variables generated by manual operations, such as uneven sensing area of the fingerprint or uneven fingerprint definition caused by uneven manual pressing force, which affects the detection accuracy.
Furthermore, because of the limitation of the shape of the artificial fingerprint, it is difficult to completely cover the entire sensing area of the fingerprint sensor, i.e. it is impossible to completely test all the sensing electrodes of the fingerprint sensor. In addition, the conventional manual detection method inevitably causes the fingerprint sensor to be polluted or even causes the sensor to be damaged due to manual operation errors or improper force application.
Disclosure of Invention
The present invention is directed to a method and an apparatus for detecting a fingerprint sensor, which uses automatic material feeding, carrying, placing, testing and classifying to replace the conventional manual detection method, thereby improving the detection efficiency and accuracy and reducing the cost.
In order to achieve the above object, the present invention provides a detecting apparatus for a fingerprint sensor, which mainly comprises a testing seat, a pressing mechanism and a controller; the test seat is used for standing a fingerprint sensor, and the front end of the pressing mechanism comprises a conductive element; a controller electrically connected to the pressing mechanism and electrically connected to the fingerprint sensor through the test socket; the controller controls the pressing mechanism to move to approach the test seat, and the conductive element contacts the fingerprint sensor on the test seat to detect the fingerprint sensor. Accordingly, the controller is utilized to control the whole detection, and the traditional manual detection method is replaced by the pressing mechanism and the conductive element thereof.
Preferably, the fingerprint sensor includes a sensing area and a non-sensing area; the pressing mechanism of the detecting device of the fingerprint sensor of the invention can further comprise a push block which can be arranged on the lower end surface of the pressing mechanism. When the controller controls the pressing mechanism to move to approach the test seat, the pushing block pushes the non-sensing area of the fingerprint sensor. Therefore, the fingerprint sensor is pushed by the push block, and the fingerprint sensor can be completely statically placed on the test seat, so that the fingerprint sensor is ensured to be completely and electrically contacted with the probes or the contacts in the test seat. In addition, preferably, at this time, the controller can perform a conduction electrical test, that is, detect whether all the contacts of the fingerprint sensor are conducted with the probes in the test socket.
Furthermore, the pressing mechanism of the detecting device of the fingerprint sensor of the present invention may further comprise a lifting actuator electrically connected to the controller and to the conductive element. When the controller controls the pressing mechanism to move to approach the test seat and the pushing block pushes the non-sensing area of the fingerprint sensor, the controller can control the lifting actuator to drive the conductive element to descend so as to contact the sensing area of the fingerprint sensor. Therefore, the invention can adopt two-stage type pressing action, the first stage pressing pushes the fingerprint sensor through the push block, so that the fingerprint sensor is more stably kept in the test seat and can carry out electrical conduction test; and the second section of pressing down utilizes the lifting actuator to lower the conductive element to make the conductive element contact with the fingerprint sensor so as to test the fingerprint sensor.
In addition, the pressing mechanism of the detecting device of the fingerprint sensor of the invention can further comprise a translation actuating module which is electrically connected to the controller and is connected to the conductive element. When the controller controls the pressing mechanism to move to approach the test seat and the pushing block pushes the non-sensing area of the fingerprint sensor, the controller controls the translation actuating module to drive the conductive element to contact and slide on the sensing area of the fingerprint sensor. Therefore, the pressing mechanism of the invention can adopt two-stage action, the first stage action pushes the fingerprint sensor through the push block, and the second stage action utilizes the translation actuating module to slide the conductive element, so that the conductive element is in sliding contact with the fingerprint sensor, and the invention is suitable for testing the sliding fingerprint sensor.
In addition, the detecting device of the fingerprint sensor of the invention can further comprise a horizontal displacement module which is electrically connected with the controller and the testing seat. When the controller controls the pushing mechanism to move to approach the test seat and the conductive element contacts the fingerprint sensor on the test seat, the controller can control the horizontal displacement module to drive the test seat to slide. Therefore, the invention can utilize the horizontal displacement module to slide the test seat, so that the fingerprint sensor slides through the conductive element, thereby testing the sliding fingerprint sensor.
Furthermore, a type of fingerprint lines can be formed on the surface of the conductive element of the detection equipment of the fingerprint sensor, which is used for contacting the fingerprint sensor; the controller may include a memory unit that stores a fingerprint sample corresponding to the fingerprint-like texture. Wherein, the controller can compare the lines sensed by the fingerprint sensor with the fingerprint samples. Therefore, the invention can automatically judge whether the fingerprint sensor is qualified or not by comparing the lines sensed by the fingerprint sensor with the fingerprint sample. However, the detection device provided by the present invention is not limited to the comparison of fingerprint patterns, and can also determine whether the fingerprint sensor is qualified or not through other detection methods, such as triggered charge variation.
To achieve the above object, the present invention provides a method for detecting a fingerprint sensor, comprising the steps of: firstly, providing a fingerprint sensor and statically placing the fingerprint sensor on a test seat; then, the pressing mechanism is driven to approach the testing seat, and the front end of the pressing mechanism comprises a conductive element which is contacted with the fingerprint sensor on the testing seat so as to detect the fingerprint sensor.
Preferably, the pressing mechanism further comprises a pushing block, which is disposed on the lower end surface of the pressing mechanism and located at the periphery of the conductive element; in the detection method of the fingerprint sensor, when the driving pressing mechanism approaches the test seat, the pushing block pushes the fingerprint sensor, and a controller performs an electrical conduction test between the fingerprint sensor and the test seat. Therefore, the invention can carry out the electrical conduction test before the function test of the fingerprint sensor, and can effectively preliminarily eliminate the misjudgment caused by poor contact.
Furthermore, the pressing mechanism may further include a lifting actuator connected to the conductive element; in the detection method of the fingerprint sensor, when the pushing mechanism is driven to approach the test seat and the pushing block pushes against the fingerprint sensor, the conductive element is driven by the lifting actuator to descend and contact the fingerprint sensor, and the controller controls the fingerprint sensor to detect lines on the surface of the conductive element or charge variation when the fingerprint sensor is triggered. Therefore, the invention can adopt two-stage pressing action, the first stage of pressing pushes the fingerprint sensor through the push block, and the second stage of pressing utilizes the lifting actuator to lower the conductive element to make the conductive element contact the fingerprint sensor, so as to be beneficial to testing the fingerprint sensor.
In addition, the pressing mechanism may further include a translational actuating module connected to the conductive element; in the detection method of the fingerprint sensor, when the pushing mechanism is driven to approach the test seat and the pushing block pushes the fingerprint sensor, the conductive element can contact and slide on the fingerprint sensor by the driving of the translation actuating module, and the controller controls the fingerprint sensor to detect the lines on the surface of the conductive element. Therefore, the pressing mechanism of the invention can adopt two-stage action, the first stage of action pushes the fingerprint sensor through the pushing block, and the second stage of action makes the conductive element contact the fingerprint sensor in a sliding way, so the invention can also test the sliding fingerprint sensor.
In the fingerprint sensor detecting method of the present invention, when the pressing mechanism is driven to approach the test seat and the conductive element contacts the fingerprint sensor, the test seat produces a horizontal slip, and the controller controls the fingerprint sensor to detect the lines on the surface of the conductive element. Therefore, when in testing, the testing seat horizontally slides to enable the fingerprint sensor to slide through the conductive element, so that the sliding type fingerprint sensor can be tested.
In addition, in the detection method of the fingerprint sensor, after the controller controls the fingerprint sensor to detect the lines on the surface of the conductive element, the method further comprises a step that the controller compares the lines sensed by the fingerprint sensor with a fingerprint sample to judge whether the fingerprint sensor is qualified or not, so that full-automatic detection is formed. However, the detection method provided by the present invention is not limited to the comparison of fingerprint patterns, and other methods, such as triggered charge variation, can be used to determine whether the fingerprint sensor is qualified or not.
Drawings
Fig. 1A is a schematic cross-sectional view of a first embodiment of the present invention.
FIG. 1B is a system architecture diagram of the first embodiment of the present invention.
Fig. 2A is a schematic cross-sectional view of a second embodiment of the present invention.
Fig. 2B is a system architecture diagram of a second embodiment of the present invention.
FIG. 2C is a flowchart illustrating the testing process according to the second embodiment of the present invention.
Fig. 3A is a schematic cross-sectional view of a third embodiment of the present invention.
Fig. 3B is a system architecture diagram of a third embodiment of the present invention.
Fig. 4A is a schematic cross-sectional view of a fourth embodiment of the present invention.
Fig. 4B is a system architecture diagram of a fourth embodiment of the present invention.
Description of the symbols:
2 test seat
20 wafer accommodating groove
21 Probe
3 pressing mechanism
30 lower end surface
31 conductive element
311 type fingerprint pattern
32 push block
33 Lift actuator
331 actuating rod
34 translational actuating module
4 controller
41 memory cell
5 horizontal displacement module
C fingerprint sensor
C1 contact
Ca sensing region
Cb non-sensing region
Cs sliding type fingerprint sensor
Fs fingerprint sample
SI inner space
Detailed Description
Before the detecting method and the detecting apparatus of the fingerprint sensor of the present invention are described in detail in the present embodiment, it should be particularly noted that similar elements will be denoted by the same reference numerals in the following description. Moreover, the drawings of the present disclosure are illustrative only, and are not necessarily to scale, nor are all details presented in the figures.
Referring to fig. 1A and fig. 1B, fig. 1A is a schematic cross-sectional view of a first embodiment of a detecting apparatus of a fingerprint sensor according to the present invention, and fig. 1B is a system architecture diagram of the first embodiment of the detecting apparatus of the fingerprint sensor according to the present invention. As shown in the figure, the present embodiment mainly includes a test socket 2, a pressing mechanism 3 and a controller 4. The testing socket 2 includes a chip receiving slot 20 for holding and fixing the fingerprint sensor C to be tested, and a plurality of probes 21 are disposed on a bottom surface of the chip receiving slot 20 for electrically contacting the contact points C1 of the fingerprint sensor C.
Furthermore, the lower end surface 30 of the pressing mechanism 3 is provided with a conductive element 31, which is made of conductive material, preferably with elastic characteristic, so as to absorb the impact force when the object is contacted, thereby achieving the buffering effect. The conductive element 31 of the present embodiment is made of conductive rubber or conductive foam. Furthermore, the surface of the conductive element 31 contacting the fingerprint sensor C is formed with a fingerprint pattern 311 similar to a pattern of a human finger.
In addition, the controller 4 is electrically connected to the pressing mechanism 3 and the plurality of probes 21 of the test socket 2, and is thereby electrically connected to the fingerprint sensor C. Furthermore, the controller 4 includes a Memory unit 41, which may be any type of fixed or removable Random Access Memory (RAM), Read-Only Memory (ROM), Flash Memory (Flash Memory), hard disk, or other similar device or combination of these devices. The memory unit 41 of the present embodiment stores a fingerprint sample Fs corresponding to the fingerprint-like pattern 311.
In the testing process of the present embodiment, a robot arm or other pick-and-place mechanism (not shown) is used to place a fingerprint sensor C on a testing base 2. Then, the controller 4 controls the pressing mechanism 3 to move downward to approach the test socket 2, and the conductive element 31 contacts the fingerprint sensor C on the test socket 2, and the controller 4 starts to perform the detection, that is, the fingerprint sensor C senses the fingerprint-like pattern 311 on the conductive element 31. After the detection is finished, the controller 4 compares the lines sensed by the fingerprint sensor C with the fingerprint sample Fs to determine whether the detected fingerprint sensor C is qualified. However, although the present embodiment adopts the comparison of fingerprint patterns as the basis for determining whether the fingerprint sensor C is qualified, the present invention is not limited thereto, and other means may be used to achieve the detection and determination in other implementation modes, such as detecting the triggered charge variation.
Referring to fig. 2A and 2B together, fig. 2A is a schematic cross-sectional view of a second embodiment of a detecting apparatus of a fingerprint sensor according to the present invention, and fig. 2B is a system architecture diagram of the second embodiment of the detecting apparatus of the fingerprint sensor according to the present invention. First, as shown in fig. 2A, the fingerprint sensor C includes a sensing region Ca and a non-sensing region Cb. The detecting apparatus of this embodiment is different from the first embodiment mainly in that the lower end surface 30 of the pressing mechanism 31 is provided with a pushing block 32, and the pressing mechanism 3 is internally provided with a lifting actuator 33.
The pushing block 32 of the present embodiment is a rectangular ring frame, and is used for pushing the non-sensing area Cb of the fingerprint sensor C when the controller 4 drives the pushing mechanism 3 to approach the test socket 2, so that the fingerprint sensor C is completely placed and fixed on the test socket 2, and the contact point C1 of the fingerprint sensor C is ensured to be in complete electrical contact with the probe 21 in the test socket 2.
Of course, the push block 32 of the present embodiment is not limited to the rectangular frame, and other structures, such as blocks, bars, or other geometric structures corresponding to the non-sensing area Cb of the fingerprint sensor C, can be applied. Moreover, the material of the pushing block 32 is preferably non-magnetic, non-conductive and elastic, such as rubber, which can absorb the excessive impact force when the pushing block 32 contacts the fingerprint sensor C.
In addition, in the embodiment, an electrical conduction test is further performed, that is, the controller 4 applies a low voltage and a micro current to the probes 21 on the test socket 2 and measures the feedback voltage or current, so as to determine whether the contact C1 of the fingerprint sensor C is completely electrically contacted with the probes 21 in the test socket 2, thereby effectively preliminarily eliminating the misjudgment caused by poor contact.
On the other hand, the lifting actuator 33 is electrically connected to the controller 4. Here, the lift actuator 33 of the present embodiment employs a pneumatic cylinder, which is set to provide a contact force of 1kgf to 10 kgf. However, the present invention is not limited to the pneumatic cylinder, and a linear motor or other equivalent devices capable of linear lifting may be used. Furthermore, the conductive element 31 is assembled on the actuating rod 331 protruding out of the pneumatic cylinder body, and the conductive element 31 can be lifted and lowered by the driving of the pneumatic cylinder.
Referring to fig. 2C, fig. 2C is a testing flowchart of a second embodiment of the detecting apparatus of the fingerprint sensor according to the present invention. The testing process of this embodiment is as follows, a fingerprint sensor C is mounted on a testing base 2 by a robot or other pick-and-place mechanism (not shown), as shown in step SA. Then, the controller 4 drives the pressing mechanism 3 to approach the testing base 2, so that the pushing block 32 pushes the non-sensing area Cb of the fingerprint sensor C, and performs an electrical conduction test between the fingerprint sensor C and the testing base 2, as shown in step SB.
After the fingerprint sensor C passes the electrical conduction test, the controller 4 controls the lifting actuator 33 to drive the conductive element 31 to descend to contact the sensing area Ca of the fingerprint sensor C, and detects the fingerprint sensor C, i.e. the fingerprint-like pattern 311 on the conductive element 31 is sensed by the fingerprint sensor C, as shown in step SC. However, in step SB, the fingerprint sensor C that has not passed the electrical conduction test is taken out and placed in the test socket 2 again by a robot arm or other pick-and-place mechanism (not shown), or directly placed in a wafer tray (not shown) for waiting for re-testing or directly listed as a defective product.
After the detection in step SC is completed, the controller 4 compares the texture sensed by the fingerprint sensor C with the fingerprint sample Fs to determine whether the detected fingerprint sensor C is qualified, as shown in step SD. Finally, the controller 4 controls a robot arm or other pick-and-place mechanism (not shown) to place the detected fingerprint sensor C into a good chip tray or a bad chip tray (not shown) according to the detection result.
Referring to fig. 3A and 3B together, fig. 3A is a schematic cross-sectional view of a detecting apparatus of a fingerprint sensor according to a third embodiment of the present invention, and fig. 3B is a system architecture diagram of the detecting apparatus of the fingerprint sensor according to the third embodiment of the present invention. As shown in the drawings, the difference between the present embodiment and the second embodiment is that the present embodiment is particularly suitable for the sliding fingerprint sensor Cs. In detail, the pressing mechanism 3 of the present embodiment further includes a translation actuating module 34 electrically connected to the controller 4 and the conductive element 31. The translational actuating module 34 may also be a pneumatic cylinder, a linear motor or other equivalent devices capable of achieving translational motion.
The main difference between the test procedure of the present embodiment and the second embodiment is that when the controller 4 drives the pushing mechanism 3 to approach the test socket 2 and the pushing block 32 pushes the non-sensing area Cb of the sliding fingerprint sensor Cs, the controller 4 controls the translational actuating module 34 to drive the conductive element 31 to contact and slide on the sensing area Ca of the sliding fingerprint sensor Cs. Accordingly, the pressing mechanism 3 of the present embodiment takes a two-stage operation, the first stage of pressing is to push the sliding fingerprint sensor Cs through the pushing block 32, and the second stage of operation is to slide the conductive element 31 by the translational actuating module 34, so that the conductive element slides and contacts the sliding fingerprint sensor Cs.
In addition, in other embodiments of the present invention, the translational actuating module 34 of the third embodiment can be replaced by other two-dimensional or three-dimensional actuating modules, that is, a driving mechanism at least providing the operation modes of lifting, translating and the like. In detail, in other embodiments of the present invention, when the pushing block 32 pushes against the non-sensing region Cb of the sliding fingerprint sensor Cs, the two-dimensional or three-dimensional actuating module (not shown) can drive the conductive element 31 to descend to contact the sliding fingerprint sensor Cs and slide on the sensing region Ca, thereby performing the detection. However, the two-dimensional or three-dimensional actuator module may be constructed by a guide member such as a guide rail, a guide groove, a screw, or a crank mechanism, together with a drive source such as a pneumatic cylinder or a motor.
Referring to fig. 4A and 4B, fig. 4A is a schematic cross-sectional view of a detecting apparatus of a fingerprint sensor according to a fourth embodiment of the present invention, and fig. 4B is a system architecture diagram of the detecting apparatus of the fingerprint sensor according to the fourth embodiment of the present invention. The present embodiment is the same as the third embodiment, and can be applied to the detection of the sliding fingerprint sensor Cs; however, the difference between the present embodiment and the third embodiment is that the conductive element 31 of the present embodiment does not move in a translational manner, but the testing base 2 drives the sliding fingerprint sensor Cs to be tested to move in a translational manner.
To explain, compared with the first embodiment, the present embodiment further includes a horizontal displacement module 5 electrically connected to the controller 4 and the test socket 2. The main difference between the test process of this embodiment and the first embodiment is that when the controller 4 drives the pushing mechanism 3 to approach the test socket 2 and the conductive element 31 to contact the sliding fingerprint sensor Cs on the test socket 2, the controller 4 controls the horizontal displacement module 5 to drive the test socket 2 to slide, so that the sensing area Ca of the sliding fingerprint sensor Cs slides on the lower surface of the conductive element 31 in a contact manner, and the sliding fingerprint sensor Cs is tested at the same time, thereby achieving the detection of the sliding fingerprint sensor Cs.
Preferably, the testing base 2 of the present embodiment includes a fixing means (not shown) for firmly fixing the sliding fingerprint sensor Cs in the testing base 2, so that the sliding fingerprint sensor Cs will not be separated from the testing base 2 due to the friction between the contact surfaces when the conductive element 31 contacts the sliding fingerprint sensor Cs and slides. However, the fixing means of the present embodiment is to form an adsorption fixing manner by using a negative pressure between the testing seat 2 and the sliding fingerprint sensor Cs; that is, a negative pressure source (not shown) is used to suck out the air in the test socket 2, so that the internal space SI forms a negative pressure to suck the sliding fingerprint sensor Cs. Of course, the fixing means of the present embodiment is not limited to the negative pressure adsorption manner, and may be replaced by a mechanism that is equipped on the test socket 2 to clamp the sliding fingerprint sensor Cs, however, other equivalent fixing means such as magnetic adsorption should be applicable to the present embodiment.
The above-described embodiments are merely exemplary for convenience in explanation, and the scope of the claims of the present invention should be determined by the claims rather than by the limitations of the above-described embodiments.
Claims (5)
1. A detection apparatus of a fingerprint sensor, comprising:
a test seat for standing a fingerprint sensor;
a down-pressure mechanism including a conductive element; and
a controller electrically connected to the pressing mechanism and the fingerprint sensor through the testing seat; wherein, the fingerprint sensor comprises a sensing area and a non-sensing area; the pushing mechanism further comprises a pushing block and a translational actuating module, the pushing block is arranged on the lower end face of the pushing mechanism, and the translational actuating module is electrically connected to the controller and the conductive element; the controller controls the pressing mechanism to move to approach the test seat, the push block pushes against the non-sensing area of the fingerprint sensor, and the controller controls the translation actuating module to drive the conductive element to contact and slide on the sensing area of the fingerprint sensor so as to detect the fingerprint sensor.
2. The fingerprint sensor detecting apparatus according to claim 1, wherein a type of fingerprint pattern is formed on a surface of the conductive member for contacting the fingerprint sensor; the controller comprises a memory unit which stores a fingerprint sample in accordance with the fingerprint lines; the controller compares the texture sensed by the fingerprint sensor with the fingerprint sample.
3. A detection method of a fingerprint sensor is characterized by comprising the following steps:
(A) providing a fingerprint sensor and statically placing the fingerprint sensor on a test seat, wherein the fingerprint sensor comprises a sensing area and a non-sensing area; and
(B) driving a pressing mechanism to approach the test seat, wherein the pressing mechanism comprises a conductive element, and the conductive element is in contact with the fingerprint sensor on the test seat so as to detect the fingerprint sensor; the pushing block is arranged on the lower end face of the pushing mechanism and positioned on the periphery of the conductive element, and the translation actuating module is connected with the conductive element; in the step (B), when the pressing mechanism is driven to approach the test seat, the pushing block pushes against the non-sensing area of the fingerprint sensor, the conductive element is driven by the translational actuating module to contact and slide on the sensing area of the fingerprint sensor, and a controller controls the fingerprint sensor to detect the texture on the surface of the conductive element.
4. The detecting method of fingerprint sensor according to claim 3,
in the step (B), when the pressing mechanism is driven to approach the testing base, the pushing block pushes the fingerprint sensor, and the controller performs an electrical conduction test between the fingerprint sensor and the testing base.
5. The method as claimed in claim 3, wherein in the step (B), when the controller controls the fingerprint sensor to detect the texture on the surface of the conductive element, the method further comprises a step after the step (B):
(C) the controller compares the fingerprint sensed by the fingerprint sensor with a fingerprint sample.
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| CN201510788589.0A CN106709408B (en) | 2015-11-17 | 2015-11-17 | Detection method and detection equipment of fingerprint sensor |
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| WO2018223268A1 (en) * | 2017-06-05 | 2018-12-13 | 深圳市汇顶科技股份有限公司 | Chip testing probe, chip testing device, and testing method |
| CN110542802B (en) * | 2018-05-28 | 2022-03-29 | 致茂电子股份有限公司 | Electronic component testing device |
| CN110879304B (en) * | 2018-09-06 | 2022-12-30 | 致茂电子股份有限公司 | Sliding electronic component testing device |
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| US7183785B2 (en) * | 2004-01-29 | 2007-02-27 | Howard Roberts | Test system and method for reduced index time |
| US20150070037A1 (en) * | 2013-09-09 | 2015-03-12 | Apple Inc. | Test fixture for probe application |
| CN204758729U (en) * | 2015-07-08 | 2015-11-11 | 天宇通讯科技(昆山)有限公司 | Base plate automatic test equipment |
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| CN102385027A (en) * | 2010-08-30 | 2012-03-21 | 致茂电子(苏州)有限公司 | Semiconductor element testing machine platform with single through conveying shuttle car |
| CN102654559A (en) * | 2012-05-10 | 2012-09-05 | 致茂电子(苏州)有限公司 | Test system for testing semiconductor-encapsulated stacked wafer and semiconductor automatic test machine thereof |
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