Pressure head and fingerprint module test device

A fingerprint module and testing device technology, applied in the field of fingerprint identification, can solve problems such as inaccurate test results and affecting the accuracy of test results, and achieve the effect of reducing maintenance costs and ensuring accuracy

Pending Publication Date: 2019-06-25
昆山丘钛生物识别科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the rubber block is relatively soft, and the concave and convex zebra stripes will have a certain amount of compression when pressed, which will affect the result of the output signal and cause inaccurate test results. Moreover, the fingerprint module will also be damaged by the conductive rubber block. Common mode noise is generated in the test data, which affects the accuracy of the test results

Method used

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  • Pressure head and fingerprint module test device
  • Pressure head and fingerprint module test device
  • Pressure head and fingerprint module test device

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Embodiment Construction

[0019] In order to make the object, technical solution and advantages of the present invention clearer, the implementation manners of the present invention will be further described below in conjunction with the accompanying drawings.

[0020] Such as Figure 1 to Figure 3 As shown, in this embodiment, the fingerprint module testing device includes an indenter 11 and a test platform 13 , and the indenter 11 includes a fixing block 111 , a circuit board 113 and a base 15 . The circuit board 113 includes a testing part 115 and a connecting part 117 , and the circuit board 113 includes a front side 1132 and a back side 1134 opposite to each other. The test portion 115 of the front side 1132 is provided with a pattern, and the test portion 115 of the back side 1134 is connected to the fixed block 111, the test portion 115 is electrically connected to the connection portion 117, and the connection portion 117 is electrically connected to the ground port of the test platform 13, to...

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Abstract

The invention discloses a pressure head and a fingerprint module test device. The pressure head comprises a fixing block and a circuit board. The circuit board comprises a test part, and opposite front and back sides. The front side is provided with a pattern at the test part. The test part on the back side is connected to the fixing block. In the pressure head and the fingerprint module test device of the invention, since the pattern is placed on the circuit board, the pattern cannot be compressed and deformed when the pressure head is pressed down such that a test result cannot be affected,thereby ensuring the test accuracy. Moreover, since the circuit board provided with the pattern is separated from the fixing block, when the pattern has problems such as damage, the circuit board canbe replaced, and the fixing block can be reused, thereby reducing maintenance costs.

Description

technical field [0001] The invention relates to the technical field of fingerprint identification, in particular to an indenter and a fingerprint module testing device. Background technique [0002] At present, fingerprint recognition technology is widely used. Not only can fingerprint recognition technology be seen in access control and attendance systems, but there are more fingerprint recognition applications on the market: such as laptops, mobile phones, cars, bank payments, etc. The performance of the fingerprint module needs to be tested before leaving the factory. At present, a conductive black rubber block is generally used as the base material, and a concave-convex zebra pattern is set on the contact surface of the rubber block and the fingerprint module, and the rubber block is used as the pressure head to press the fingerprint module to obtain the corresponding fingerprint test. The data is then used to evaluate the performance of the fingerprint module. However...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01R1/04G01R31/28
Inventor 高涛涛张海吉王茂
Owner 昆山丘钛生物识别科技有限公司
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