Fingerprint chip module group with anti-ESD capability

Abstract

The utility model relates to a fingerprint chip module group with anti-ESD capability, comprising a substrate and a fingerprint chip body, the substrate is provided with a protection assembly, the substrate is provided with an illumination assembly, the protection assembly comprises a conductive column fixedly installed on the top of the substrate, the outer side of the fingerprint chip body is provided with a lead, and the conductive column is provided with an LED light source. And a mounting ring is clamped at the top of the conductive column. According to the fingerprint chip module with the anti-ESD capability, through the installation of the protection assembly, when human body fingerprints are collected, human body static electricity can be effectively conducted to the ground through the conductive columns and the lead wires, the static electricity in the fingerprint recognition process is conducted, the phenomena that the fingerprint chip body is broken down by the static electricity, halted or damaged are reduced, and the fingerprint recognition efficiency is improved. The service life of the fingerprint chip body is prolonged, the lighting assembly is installed, so that the device has good light emitting performance, a user can conveniently find the fingerprint module under the condition of insufficient light, and the practicability of the device is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of fingerprint chip modules, in particular to a fingerprint chip module with ESD resistance capability. Background Art

[0002] With the continuous advancement of semiconductor technology and market demand, the rapid development of chip packaging technology, and the continuous emergence of new fingerprint recognition systems, various fingerprint recognition systems have appeared in the market, especially in the fields of mobile phones, computers, access control, attendance and other confidential systems. Most mobile terminals on the market have added fingerprint recognition sensors, so that mobile terminals have fingerprint recognition functions. Fingerprint unlocking, as the current unlocking method of mobile phones, has the advantages of convenience and speed. Compared with traditional passwords and pattern unlocking, its security also has great advantages. The human body's own movements or contact, separation, friction or induction with other objects can generate several thousand volts or even tens of thousands of volts of static electricity. Human body static electricity often causes unstable operation of mobile terminal products.

[0003] When collecting human fingerprints, the finger must press the fingerprint collection area of ​​the capacitive fingerprint sensor. At this time, the electrostatic charge accumulated by the human body and the outside world enters the hardware circuit board directly through contact with the capacitive fingerprint sensor or through the gap in the product shell, causing the capacitive fingerprint sensor to be electrostatically broken down, frozen or damaged. In a dry environment, this phenomenon is more likely to cause damage to the capacitive fingerprint sensor, which in turn seriously affects the normal use and life of the capacitive fingerprint sensor. This application proposes another technical solution to solve this technical problem. Utility Model Content

[0004] In view of the deficiencies in the prior art, the utility model provides a fingerprint chip module with ESD resistance, which has the advantages of anti-static luminescence, etc., and solves the problem that electrostatic charges enter the hardware circuit board directly through contact with the capacitive fingerprint sensor or through the gaps in the product casing, thereby causing the capacitive fingerprint sensor to be broken down by static electricity, freeze or be damaged.

[0005] To achieve the above object, the utility model provides the following technical solution: a fingerprint chip module with ESD resistance, comprising a substrate and a fingerprint chip body, a protection component is installed on the substrate, and a lighting component is installed on the substrate;

[0006] The protective component includes a conductive column fixedly mounted on the top of the substrate, a lead is arranged on the outside of the fingerprint chip body, a mounting ring is clamped on the top of the conductive column, a clamping block is fixedly mounted on the bottom of the mounting ring, and a protective layer is fixedly mounted inside the mounting ring.

[0007] Furthermore, the lighting assembly includes a light-emitting element fixedly mounted on the top of the substrate, and a light-guiding ring is fixedly mounted on the top of the mounting ring.

[0008] Furthermore, a clamping groove is provided on the top of the conductive column, and the clamping block is clamped with the conductive column through the clamping groove.

[0009] Furthermore, a placement groove is provided on the inner side of the conductive column, and there are multiple leads, which are laid at intervals along the circumferential direction of the edge of the fingerprint chip body.

[0010] Furthermore, the protective layer is made of glass or ceramic material, and the conductive pillars and the fingerprint chip body are bonded by adhesive.

[0011] Furthermore, a mounting groove is provided on the top of the mounting ring, and the light guide ring is fixedly connected to the mounting ring through the mounting groove.

[0012] Furthermore, the light guide ring is bonded to the mounting ring through a first adhesive layer, and the number of the light emitting elements is four and they are symmetrically mounted on the substrate.

[0013] Compared with the prior art, the technical solution of this application has the following beneficial effects:

[0014] The fingerprint chip module with ESD resistance is equipped with a protective component. When collecting human fingerprints, it can effectively conduct human static electricity to the ground through conductive columns and leads, conduct static electricity in the fingerprint recognition process, and reduce the phenomenon of static electricity breakdown, freezing or damage of the fingerprint chip body, which is beneficial to prolonging the service life of the fingerprint chip body. By installing a lighting component, the device has better luminous performance, which can solve the problem of users finding the fingerprint module in insufficient light conditions, which is beneficial to improving the practicality of the device. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 This is a cross-sectional view of the structure of the utility model;

[0016] Figure 2 It is a three-dimensional diagram of the structure of the utility model.

[0017] In the figure: 1. substrate; 2. fingerprint chip body; 3. conductive column; 4. lead; 5. mounting ring; 6. clamping block; 7. protective layer; 8. light-emitting element; 9. light-guiding ring. DETAILED DESCRIPTION

[0018] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0019] See also Figure 1-2 In this embodiment, a fingerprint chip module with ESD resistance includes a substrate 1 and a fingerprint chip body 2. A protection component is installed on the substrate 1, and a lighting component is installed on the substrate 1.

[0020] The protection component includes a conductive column 3 fixedly mounted on the top of the substrate 1. The conductive column 3 and the fingerprint chip body 2 are bonded by adhesive, which facilitates better installation of the device, further improves the conductive performance of the device, and improves the quality of use of the device.

[0021] A lead 4 is provided on the outside of the fingerprint chip body 2, and a ground terminal is installed on the top of the substrate 1. The lead 4 is connected to the ground terminal line so that the device forms a passage. When collecting human fingerprints, it is convenient to guide the static electricity generated, reduce the electrostatic breakdown, freeze or damage of the fingerprint chip body 2, and help extend the service life of the fingerprint chip body 2.

[0022] A placement groove is provided on the inner side of the conductive column 3, and there are multiple leads 4. The leads 4 are laid at circumferential intervals along the edge of the fingerprint chip body 2, so that the leads 4 can be distributed and fixedly installed on the inner side of the conductive column 3, so that the leads 4 are likened to a pointed end, which is convenient for conducting static electricity when collecting human fingerprints, reducing damage to the capacitive fingerprint sensor caused by static electricity, and thus seriously affecting the normal use and life of the capacitive fingerprint sensor.

[0023] A mounting ring 5 is clamped on the top of the conductive column 3, a clamping block 6 is fixedly installed on the bottom of the mounting ring 5, a clamping groove is provided on the top of the conductive column 3, and the clamping block 6 is clamped with the conductive column 3 through the clamping groove, so that the mounting ring 5 can be quickly and accurately installed and clamped with the conductive column 3 during installation, and then the mounting ring 5 and the conductive column 3 are fixedly installed through the second adhesive layer.

[0024] A protective layer 7 is fixedly installed inside the mounting ring 5. The protective layer 7 is made of glass or ceramic material, which is convenient for installing protection on the top of the fingerprint chip body 2. When collecting human fingerprints, electrostatic charges enter the hardware circuit board directly through contact with the capacitive fingerprint sensor or through the gap in the product shell, thereby causing the capacitive fingerprint sensor to be broken down by static electricity, freeze or be damaged, which is convenient for improving the use quality of the fingerprint chip body 2.

[0025] It should be noted that the fingerprint chip module with ESD resistance is equipped with a protective component. When collecting human fingerprints, it can effectively conduct human static electricity to the ground through the conductive column 3 and the lead 4, and conduct the static electricity in the fingerprint recognition process, which is beneficial to reduce the phenomenon of static electricity breakdown, freezing or damage of the fingerprint chip body 2, and is beneficial to improve the service life of the fingerprint chip body 2.

[0026] Specifically, when the fingerprint chip module with ESD resistance is in use, the lead 4 on the outside of the fingerprint chip body 2 is likened to a tip. When the protective layer 7 located above the fingerprint chip body 2 senses static electricity from the human body, the fingerprint chip body 2 is interconnected with the lead 4, the substrate 1 and the ground terminal through the wire to form a path, and the external static electricity is preferentially conducted out through the ground terminal through the conductive column 3 and the lead 4, thereby reducing the phenomenon of the fingerprint chip body 2 being broken down, frozen or damaged by static electricity, which is beneficial to improving the service life of the fingerprint chip body 2.

[0027] The lighting assembly includes a light emitting element 8 fixedly mounted on the top of the substrate 1. The light emitting element 8 is made of PC, which makes the light emitting element 8 stronger and more impact-resistant, and can maintain stable performance in a high temperature environment and is not easily deformed.

[0028] A light guide ring 9 is fixedly installed on the top of the mounting ring 5. A mounting groove is opened on the top of the mounting ring 5. The light guide ring 9 is fixedly connected to the mounting ring 5 through the mounting groove, which facilitates the light guide ring 9 to be accurately fixedly connected to the mounting ring 5. Subsequently, the light guide ring 9 is bonded to the mounting ring 5 through a first adhesive layer, so that the light guide ring 9 is installed more firmly.

[0029] There are four light-emitting elements 8, which are symmetrically installed on the substrate 1. The light-emitting elements 8 are electrically connected to the light-guiding ring 9. The light-emitting elements 8 provide uniform light input around the light-guiding ring 9, making it easier for users to find the fingerprint module in low-light conditions, which is beneficial to improving the practicality of the device.

[0030] It should be noted that the fingerprint chip module with ESD resistance is equipped with a lighting component, so that the device has better luminous performance, which can help users find the fingerprint module in insufficient light conditions, and is conducive to improving the practicality of the device.

[0031] Specifically, when the fingerprint chip module with ESD resistance is used, the light-emitting elements 8 are symmetrically installed on both sides of the substrate 1, and the light-guiding ring 9 is electrically connected to the light-emitting element 8, so that there is uniform light input around the light-guiding ring 9, so that the device has better light-emitting performance, can solve the problem of users finding the fingerprint module in insufficient light conditions, and is conducive to improving the practicality of the device.

[0032] The working principle of the above embodiment is:

[0033] (1) When the fingerprint chip module with ESD resistance is used, the lead 4 on the outside of the fingerprint chip body 2 is compared to a tip. When the protective layer 7 located above the fingerprint chip body 2 senses static electricity from the human body, the fingerprint chip body 2 is interconnected with the lead 4, the substrate 1 and the ground terminal through the wire to form a path. The external static electricity is preferentially conducted out through the ground terminal through the conductive column 3 and the lead 4, thereby reducing the phenomenon of the fingerprint chip body 2 being broken down, frozen or damaged by static electricity, which is beneficial to improving the service life of the fingerprint chip body 2.

[0034] (2) When the fingerprint chip module with ESD resistance is used, the light-emitting elements 8 are symmetrically mounted on both sides of the substrate 1, and the light-guiding ring 9 is electrically connected to the light-emitting element 8, so that there is uniform light input around the light-guiding ring 9, so that the device has better light-emitting performance, can solve the problem of users finding the fingerprint module in insufficient light conditions, and is conducive to improving the practicality of the device.

[0035] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device. In the absence of further restrictions, the elements defined by the sentence "comprise a ..." do not exclude the existence of other identical elements in the process, method, article or device including the elements.

[0036] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A fingerprint chip module with ESD resistance, comprising a substrate (1) and a fingerprint chip body (2), characterized in that: A protection component is mounted on the substrate (1), and a lighting component is mounted on the substrate (1); The protective component comprises a conductive column (3) fixedly mounted on the top of the substrate (1); a lead (4) is arranged on the outside of the fingerprint chip body (2); a mounting ring (5) is clamped on the top of the conductive column (3); a clamping block (6) is fixedly mounted on the bottom of the mounting ring (5); and a protective layer (7) is fixedly mounted inside the mounting ring (5).

2. The fingerprint chip module with ESD resistance according to claim 1, characterized in that: The lighting assembly comprises a light emitting element (8) fixedly mounted on the top of the substrate (1), and a light guide ring (9) is fixedly mounted on the top of the mounting ring (5).

3. The fingerprint chip module with ESD resistance according to claim 1, characterized in that: A clamping groove is provided on the top of the conductive column (3), and the clamping block (6) is clamped to the conductive column (3) via the clamping groove.

4. The fingerprint chip module with ESD resistance according to claim 1, characterized in that: A placement groove is provided on the inner side of the conductive column (3), and the number of the lead wires (4) is multiple, and the lead wires (4) are laid at intervals in the circumferential direction along the edge of the fingerprint chip body (2).

5. The fingerprint chip module with ESD resistance according to claim 1, characterized in that: The protective layer (7) is made of glass or ceramic material, and the conductive column (3) and the fingerprint chip body (2) are bonded together by adhesive.

6. The fingerprint chip module with ESD resistance according to claim 2, characterized in that: The top of the mounting ring (5) is provided with a mounting groove, and the light guide ring (9) is fixedly connected to the mounting ring (5) via the mounting groove.

7. The fingerprint chip module with ESD resistance according to claim 2, characterized in that: The light guide ring (9) is bonded to the mounting ring (5) via a first adhesive layer. The number of the light emitting elements (8) is four and they are symmetrically mounted on the substrate (1).

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