TWI552090B - Smart card fingerprint press device - Google Patents

Description

Smart card fingerprint pressing device

The invention relates to a portable plastic card with an integrated circuit chip, in particular to a smart card fingerprint pressing device capable of obtaining a stable fixed position of the fingerprint identification module.

Smart cards (also known as IC cards, integrated circuit cards or smart cards) are portable plastic cards with integrated circuit chips. They can be accessed by sensing and contact methods. They are widely used in mass transportation. Tools for leisure cards, e-wallets, chip financial cards, credit cards, e-tickets and employee identification cards...etc. Among them, in order to improve the anti-counterfeiting function and security of smart cards, and to prevent the risk of smart card being stolen or stolen, the applicant has previously proposed fingerprint identification functions such as China's certificate numbers M372978, M407449 and I423142. The smart card uses the fingerprint identification module to receive the input signal and identify whether it is the user's own fingerprint, effectively solving the risk of the smart card being stolen or stolen.

The structure of the smart card having the fingerprint identification function is substantially as shown in FIG. 7. The smart card 90 mainly includes a carrier 91 in the form of a sheet, a flexible circuit board 92 fixed on the top surface of the carrier 91, and a fixing device. On the top surface 93 of the flexible circuit board 92, a chip 94 and a fingerprint identification module 95 electrically connected to the chip 94 are fixed on the top surface of the flexible circuit board 92, and corresponding to the surface layer 93. There is a chip window 931 and a fingerprint module window 932 for the chip 94 and the fingerprint recognition module 95. The fingerprint module 95 is provided with a fingerprint sensing chip 951 and a fingerprint sensing chip 951. The flexible circuit board 952, and the fingerprint module window 932 is pressed against the outer periphery of the fingerprint sensing chip 951 of the fingerprint recognition module 95 through a frame 96 having a rectangular frame shape, so that the fingerprint identification module 95 is provided. Combined positioning.

Referring to FIG. 7 , the fingerprint identification module 95 of the existing smart card 90 is directly attached to the flexible circuit board 92 and lacks an appropriate support structure. The user manually presses the fingerprint recognition module 95 to facilitate fingerprints. When reading, or when the smart card 90 is placed in a wallet or a pocket and is bent and pressed, it is quite easy to cause damage to the fingerprint recognition module 95, resulting in damage, disconnection or fingerprint sensing of the fingerprint recognition module 95. The phenomenon that the wafer 951 is stripped, etc., causes the existing smart card 90 having the fingerprint recognition function to have problems of poor durability, resistance to bending, and easy induction failure.

In order to solve the existing smart card fingerprint pressing structure, there is a deficiency and limitation that the fingerprint identification module is easy to break and is not resistant to bending. The main purpose of the present invention is to provide a smart card fingerprint pressing device capable of obtaining a stable fixed position of the fingerprint identification module. The invention provides a rigid positioning frame on the flexible circuit board to provide the fingerprint identification module to be inserted and fitted, which can form a stable and reliable support positioning function for the fingerprint identification module, and effectively solve the problem that the existing smart card fingerprint pressing device is easy to break. And the problem of not being able to bend.

The invention provides a smart card fingerprint pressing device, which comprises: a carrier, which is a thin and flexible sheet; a flexible circuit board, which is attached to the top surface of the carrier and provided with at least one a singularly-arranged circuit; a locating frame, which is a rigid frame structure and abuts against the flexible circuit board, the positioning frame is recessed with a slot and is formed through one of the side walls of the slot a fingerprint identification module, which is embedded in the recessed groove of the positioning frame and includes a fingerprint sensing chip having a shape matching the groove, and a flexible circuit connector electrically connecting the fingerprint sensing chip And a rigid substrate under the fingerprint sensing chip, the flexible circuit tab is pierced by the through hole of the positioning frame and electrically connected to the flexible circuit board; and a layer is attached to the top of the flexible circuit board Surface, the surface layer is provided with a fingerprint sensing crystal The exposed fingerprint module window hole is pressed against the peripheral portion of the positioning frame seat by the peripheral edge of the fingerprint module window.

The smart card fingerprint pressing device, wherein the positioning frame seat forms a ring frame and a card portion lower than the ring frame in the outer periphery of the slot; the fingerprint module window hole The matching corresponds to the outer circumference of the ring frame and can be pressed against the click portion.

The smart card fingerprint pressing device, wherein the positioning frame seat is a one-piece construction formed by stamping a metal sheet.

In the smart card fingerprint pressing device, the depth of the slot of the positioning frame is greater than the thickness of the fingerprint recognition module.

The smart card fingerprint pressing device, wherein the length of the rigid substrate of the fingerprint recognition module is greater than the length of the fingerprint sensing chip, and the connection between the fingerprint sensing chip and the flexible circuit tab is formed. The end of the substrate passes through the through hole of the positioning frame.

The smart card fingerprint pressing device, wherein the fingerprint sensing chip, the flexible circuit tab and the rigid substrate of the fingerprint identification module are arranged in a stack from top to bottom.

Enhancements to the efficiencies available to the techniques of the present invention include:

1. The fingerprint identification module of the invention is combined with the positioning frame arranged in the frame groove shape, so that the fingerprint identification module obtains a stable and reliable supporting function, and can fully withstand the user pressing the fingerprint identification module to read the fingerprint. Shili effectively solves the problem that the fingerprint identification module of the existing smart card is easily damaged or inductively disabled.

2. The invention forms a reliable supporting function for the fingerprint identification module by using the positioning frame seat, and even if the smart card is pressed and bent due to being placed in the wallet or the pocket, the fingerprint identification module can be effectively protected from damage and wisdom. The card's resistance to bending and durability.

3. The invention allows the fingerprint identification module to be directly embedded in the recessed groove of the positioning frame seat, and is matched with the positioning frame seat to match the alignment of the fingerprint module window of the card portion and the surface layer, thereby effectively simplifying the fingerprint recognition mode. Group Assembling the work and improving the structural stability of the fingerprint pressing device.

10‧‧‧ Carrier

20‧‧‧Soft circuit board

21‧‧‧ wafer

22‧‧‧Display module

30‧‧‧Face

31‧‧‧ wafer window aperture

32‧‧‧Fingerprint module window

33‧‧‧ display window

40, 40A‧‧‧ fingerprint identification module

41‧‧‧Fingerprinting chip

42‧‧‧Soft circuit connectors

43‧‧‧hard substrate

50‧‧‧ positioning frame

51‧‧‧Inlay

52‧‧‧ ring frame

53‧‧‧Card Department

54‧‧‧through hole

90‧‧‧Smart Card

91‧‧‧ Carrier

92‧‧‧Soft circuit board

93‧‧‧Face

931‧‧‧Size window aperture

932‧‧‧Fingerprint module window

94‧‧‧ wafer

95‧‧‧Fingerprint Identification Module

951‧‧‧Fingerprinting chip

952‧‧‧Soft circuit connectors

96‧‧‧Frame

BRIEF DESCRIPTION OF THE DRAWINGS Figure 1 is a perspective view of a first preferred embodiment of the present invention.

Figure 2 is an exploded view of the components of the first preferred embodiment of the present invention.

3 is a diagram showing the assembly relationship between the fingerprint recognition module and the positioning frame of the first preferred embodiment of the present invention.

Figure 4 is a cross-sectional view showing the combination of the first preferred embodiment of the present invention.

Figure 5 is a sectional view showing the combination of a second preferred embodiment of the present invention.

Figure 6 is a perspective view of a third preferred embodiment of the present invention.

Fig. 7 is an exploded perspective view showing the components of the conventional smart card.

The first preferred embodiment of the smart card fingerprint pressing device of the present invention is as shown in FIG. 1 to FIG. 4 . The smart card comprises: a carrier 10 , a flexible circuit board 20 attached to the carrier 10 , A surface layer 30 bonded to the flexible circuit board 20 is attached to the surface layer 30 of the flexible circuit board 20, and a fingerprint identification module 40 coupled between the flexible circuit board 20 and the surface layer 30 is assembled by using a positioning frame 50, and is pressed by heat. In a manner, the components are combined and fixed; wherein, as shown in FIG. 1 and FIG. 2, the carrier 10 is a substantially rectangular flexible thin sheet, and the flexible circuit board 20 is fixedly bonded to the top surface of the carrier 10. The flexible circuit board 20 is provided with a related circuit structure, a memory unit, and at least one wafer 21 formed by an integrated circuit. The related circuit structure, the memory unit, and the wafer 21 and the like of the smart card belong to the prior art. Regardless of the technical features of the present invention, it will not be described in detail.

As shown in FIG. 3 and FIG. 4, the fingerprint recognition module 40 is adhesively bonded to the positioning frame 50, and includes a fingerprint sensing chip 41 and a flexible circuit connector which are arranged in a stack from top to bottom. 42 and a rigid substrate 43, the fingerprint sensing chip 41 is electrically connected to the flexible circuit tab 42 and the flexible circuit tab 42 is electrically connected to the circuit structure of the flexible circuit board 20, which is a rigid sheet having a suitable supporting rigidity such as a metal foil, a plastic sheet or a composite sheet, and the length of the hard substrate 43 is larger than the fingerprint sensing. The length of the wafer 41 is such that when the fingerprint sensing wafer 41 is electrically connected to the flexible circuit tab 42, it provides sufficient support for the wiring location.

The positioning frame 50 is a rectangular frame structure having sufficient rigidity and is fixedly fixed to an appropriate position on one end side of the flexible circuit board 20. The positioning frame 50 can be made of a rigid material such as a metal sheet or a plastic material. The one-piece molding is one-piece. The positioning frame 50 of the preferred embodiment is formed by stamping a metal sheet. The positioning frame 50 is provided with a shape matching the fingerprint sensing wafer 41 and the depth is greater than The rectangular slot 51 of the thickness of the fingerprint recognition module 40 is provided to be attached to the slot 51 of the positioning frame 50. The positioning frame 50 is outwardly disposed around the slot 51. Forming a rectangular ring frame 52 and a latching portion 53 having a rectangular shape and a lower height than the ring frame 52, and a flexible circuit tab 42 is formed through one of the side walls of the recess 51. The through hole 54 is formed in the rigid substrate 43.

As shown in FIG. 1 , FIG. 2 and FIG. 4 , the surface layer 30 has the same shape and shape as the carrier 10 and is fixedly attached to the top surface of the flexible circuit board 20 , corresponding to the chip 21 and the fingerprint identification module. 40, a wafer window 31 for exposing the chip 21 and a fingerprint module window 32 for exposing the fingerprint module 40 are formed on the surface layer 30, and the shape and shape of the fingerprint module window 32 are matched. Corresponding to the outer periphery of the ring frame 52 of the positioning frame 50, the surface layer 30 can be pressed against the latching portion 53 of the positioning frame 50 and the ring frame 52 of the positioning frame 50 is exposed. The frame 50 is firmly coupled between the surface layer 30 and the flexible circuit board 20.

As shown in FIG. 2 to FIG. 4 , when the invention is assembled and formed, the fingerprint recognition module 40 is inserted into the slot 51 of the positioning frame 50 from the through hole 54 of the positioning frame 50 and is fixed and fixed. The positioning frame 50 abuts against the set position of the flexible circuit board 20, and all the components are placed in the mold to be combined and fixed by thermocompression bonding, and the smart card shown in FIG. 1 is assembled. The fingerprint of the invention The identification module 40 is directly embedded in the slot 51 of the positioning frame 50, and is matched with the surface layer 30 to match the matching alignment of the fingerprint module window 32, which can effectively simplify the fingerprint identification module 40. Assembly work and improve the stability of the finger joint construction.

As shown in FIG. 1 , FIG. 2 and FIG. 4 , the present invention provides the fingerprint recognition module 40 with a comprehensive and stable supporting function, and can fully withstand the user's pressing of the fingerprint identification module 40. The urging of the fingerprint can effectively prevent the fingerprint recognition module 40 from being damaged or inductively disabled due to the pressing force. At the same time, the support card of the positioning frame 50 can be pressed and bent on the smart card. At the same time, the fingerprint recognition module 40 is effectively protected from damage, and the bending resistance and durability of the smart card with the fingerprint recognition function are greatly improved.

In the second preferred embodiment of the present invention, as shown in FIG. 5, the change from the first preferred embodiment is in the fingerprint identification module 40A. The fingerprint identification module 40A of the present embodiment includes a fingerprint. The inductive chip 41, a flexible circuit tab 42 and a rigid substrate 43 that is coupled to the bottom surface of the fingerprint sensing chip 41 to form a supporting protection, the flexible circuit tab 42 is electrically connected to the fingerprint sensing chip 41 corresponding to the The terminal of the through hole 54 is electrically connected to the circuit configuration of the flexible circuit board 20, and the length of the hard substrate 43 is larger than the length of the fingerprint sensing chip 41, so that a sufficient supporting role of the wiring position can be provided.

In the third preferred embodiment of the present invention as shown in FIG. 6, a modification different from the first preferred embodiment is that a display module 22 is additionally provided, and a display module is provided corresponding to the surface layer 30. The display window 33 exposed by the group 22 allows the fingerprint pressing device of the present invention to be applied to a smart card having a display function.

The above is only a preferred embodiment of the present invention, and is not intended to limit the scope of the present invention. Any one of ordinary skill in the art can use the present invention without departing from the technical features of the present invention. Equivalent embodiments of the local changes or modifications made by the disclosed technology are still within the scope of the technical features of the present invention.

40 Fingerprint Identification Module 41 Fingerprint Sensing Chips 42 Flexible Circuit Blocks 43 Hard Substrate 50 Positioning Frame Blocks 51 Grooves 52 Ring Frames 53 Clamping Parts 54 Through Holes

Claims (7)

A smart card fingerprint pressing device comprises: a carrier which is a flexible thin sheet; a flexible circuit board which abuts against a top surface of the carrier and is provided with at least one wafer formed by an integrated circuit a positioning frame, which is a rigid frame structure and is abutted to the flexible circuit board, the positioning frame is recessed with a recessed groove and a through hole is formed in one of the side walls of the recess; The module is embedded in the slot of the positioning frame and includes a fingerprint sensing chip with a shape matching the slot, a flexible circuit connector electrically connecting the fingerprint sensing chip, and a fingerprint sensing chip a flexible substrate, the flexible circuit tab is passed through the through hole of the positioning frame and electrically connected to the flexible circuit board; and a layer is attached to the top surface of the flexible circuit board, and the surface layer is opened The fingerprint module window for the fingerprint sensing chip is exposed and pressed against the peripheral portion of the positioning frame by the peripheral edge of the fingerprint module window. The smart card fingerprint pressing device of claim 1, wherein the positioning frame is formed with a ring frame and a lower portion of the ring frame than the ring frame; The module window hole is matched to the outer circumference of the ring frame and can be pressed against the card portion. The smart card fingerprint pressing device according to claim 2, wherein the positioning frame seat is configured in a single piece stamped and formed of a metal sheet. The smart card fingerprint pressing device of claim 3, wherein the depth of the slot of the positioning frame is greater than the thickness of the fingerprint recognition module. The smart card fingerprint pressing device according to any one of claims 1 to 4, wherein a length of the rigid substrate of the fingerprint recognition module is greater than a length of the fingerprint sensing chip, and the fingerprint sensing chip and the flexible circuit The connection portion of the tab forms a support, and the end of the rigid substrate passes through the through hole of the positioning frame. The smart card fingerprint pressing device according to claim 5, wherein the fingerprint sensing chip, the flexible circuit tab and the rigid substrate of the fingerprint recognition module are arranged in a stack from top to bottom. The smart card fingerprinting device of claim 5, wherein the rigid substrate of the fingerprint recognition module is attached to the bottom surface of the fingerprint sensing chip, and the flexible circuit chip is connected to the fingerprint sensing chip. The terminal of the through hole.