CN105825194A - Integrated fingerprint identification module and preparation method thereof - Google Patents
Integrated fingerprint identification module and preparation method thereof Download PDFInfo
- Publication number
- CN105825194A CN105825194A CN201610178090.2A CN201610178090A CN105825194A CN 105825194 A CN105825194 A CN 105825194A CN 201610178090 A CN201610178090 A CN 201610178090A CN 105825194 A CN105825194 A CN 105825194A
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- CN
- China
- Prior art keywords
- flexible pcb
- reinforced sheet
- recognition module
- fingerprint recognition
- integrated form
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- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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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
- G06V40/13—Sensors therefor
- G06V40/1306—Sensors therefor non-optical, e.g. ultrasonic or capacitive sensing
Abstract
The present invention relates to an integrated fingerprint identification module. The integrated fingerprint identification module comprises a flexible circuit board, reinforcement pieces, a fingerprint chip and a button. The flexible circuit board includes a first flexible circuit board, a second flexible circuit board arranged opposite to the first flexible circuit board, and a connection part connected with the first flexible circuit board and the second flexible circuit board. The reinforcement piece includes a first reinforcement piece and a second reinforcement piece; the first flexible circuit board, the first reinforcement piece, the second reinforcement piece and the second flexible circuit board are overlaid in order; and the fingerprint chip is arranged at the surface of the first flexible circuit board far away from the first reinforcement piece, and the button is arranged at the surface of the second flexible circuit board far away from the second reinforcement piece. The present invention further provides a preparation method of the integrated fingerprint identification module. The integrated fingerprint identification module avoids the risks that the deformation of a rigid-flex board is easy to happen to cause the identification failure of a fingerprint and ineffectiveness of a button, and is short in preparation period and low in cost.
Description
Technical field
The present invention relates to fingerprint identification technology field, be specifically related to a kind of integrated form fingerprint recognition module and preparation method thereof.
Background technology
Along with the development of biological identification technology and people are for the raising day by day of information security sexual demand, fingerprint identification technology is applied on the electronic equipment such as mobile phone, computer by substantial amounts of, simultaneously more and more higher along with electronic equipment integration degree, more fingerprint recognition module needs integrated keypress function, as fingerprint recognition and Home key be integrated in one, fingerprint recognition is integrated in one with power key.
At present the fingerprint recognition module of band keypress function is by substrate is made Rigid Flex, then fingerprint chip and button are mounted on tow sides respectively realize, but substrate is made the complex process of Rigid Flex, and yield is low, and fabrication cycle is long, and cost is high；And owing to people have a downward pressure using keypress function when, and Rigid Flex thinner thickness, and bending property is strong, long-term pressing easily causes base plate deformation, thus causes fingerprint recognition to lose efficacy and keypress function is malfunctioning.
Summary of the invention
In order to solve the technical problem of the easy deformation of Rigid Flex that above-mentioned fingerprint recognition module exists, the present invention provides a kind of integrated form fingerprint recognition module being difficult to deformation and preparation method thereof.
The invention provides a kind of integrated form fingerprint recognition module, flexible PCB, reinforced sheet, fingerprint chip and button, described flexible PCB includes the first flexible PCB, the second flexible PCB being oppositely arranged with described first flexible PCB, and connect described first flexible PCB and the connecting portion of described second flexible PCB, described first flexible PCB and described second flexible PCB parallel interval are arranged, described reinforced sheet includes the first reinforced sheet and the second reinforced sheet, described first flexible PCB, described first reinforced sheet, described second reinforced sheet and described second flexible PCB are folded successively to be set, described fingerprint chip is located at described first flexible PCB surface away from described first reinforced sheet, described button is located at described second flexible PCB surface away from described second reinforced sheet.
In a kind of preferred embodiment of the integrated form fingerprint recognition module of present invention offer, the center of described button is perpendicular to described reinforced sheet with the line at the center of described fingerprint chip.
In a kind of preferred embodiment of the integrated form fingerprint recognition module of present invention offer, described first flexible PCB, described second flexible PCB and described connecting portion are integrated.
In a kind of preferred embodiment of the integrated form fingerprint recognition module of present invention offer, described first reinforced sheet includes the adhesive surface that installed surface is oppositely arranged and a plurality of opisthotonos para-position reference line etched on described installed surface with described installed surface, and the edge line of described opisthotonos para-position reference line and the second reinforced sheet overlaps.
In a kind of preferred embodiment of the integrated form fingerprint recognition module of present invention offer, the width of described opisthotonos para-position reference line is 0.1～0.3mm.
In a kind of preferred embodiment of the integrated form fingerprint recognition module of present invention offer, described first flexible PCB, described first reinforced sheet, described second reinforced sheet and described second flexible PCB pass sequentially through conducting resinl pressing and connect.
In a kind of preferred embodiment of the integrated form fingerprint recognition module of present invention offer, described fingerprint chip is electrically connected with described first flexible PCB by scolding tin, and described button is electrically connected with described second flexible PCB by scolding tin.
In a kind of preferred embodiment of the integrated form fingerprint recognition module of present invention offer, described flexible PCB also includes the inner surface being connected with described reinforcement version and the outer surface being oppositely arranged with described inner surface.
Present invention simultaneously provides a kind of preparation method based on above-mentioned integrated form fingerprint recognition module, it is characterised in that comprise the following steps:
Step one, offer flexible PCB, fingerprint chip, button and two reinforced sheets, described flexible PCB includes the second flexible PCB that the first flexible PCB is oppositely arranged with described first flexible PCB and is connected described first flexible PCB and the connecting portion of described second flexible PCB, and reinforced sheet described in two is divided into the first reinforced sheet and the second reinforced sheet；
Step 2, described first reinforced sheet include the adhesive surface that installed surface is oppositely arranged with described installed surface, etch a plurality of opisthotonos para-position reference line on described installed surface；
Step 3, the adhesive surface of described first reinforced sheet is connected with described first flexible PCB, and described second reinforced sheet is connected with described second flexible PCB；
Step 4, described fingerprint chip is made to electrically connect with described first flexible PCB by scolding tin, and arrange with described first reinforced sheet relative spacing, make described button electrically connect with described second flexible PCB by scolding tin, and arrange with described second reinforced sheet relative spacing；
Step 5, described flexible PCB is bent from connecting portion it described, and with reference to described opisthotonos para-position reference line position, described first reinforced sheet and described second reinforced sheet is connected by conducting resinl, described first flexible PCB and described second flexible PCB parallel interval are arranged, the center of described button is perpendicular to described reinforced sheet with the line at the center of described fingerprint chip, prepares integrated form fingerprint recognition module.
Compared to prior art, integrated form fingerprint recognition module that the present invention provides and preparation method thereof has the advantages that
One, by described flexible PCB and described reinforced sheet being equipped with replacement Rigid Flex of the prior art, it is to avoid Rigid Flex presses for a long time to deform upon and causes fingerprint recognition to lose efficacy and the risk of button malfunction；
Two, by using described flexible PCB to make to manufacture, described integrated form fingerprint recognition module technique simplifies, fabrication cycle is short, low cost；
Three, by arrange described opisthotonos para-position reference line make to align described button and described fingerprint chip more directly perceived easy；
Four, by arranging described first reinforced sheet and described second reinforced sheet so that described fingerprint recognition module is more sturdy and durable, the described para-position reference line that aligns is easier to, more convenient bonding.
Accompanying drawing explanation
For the technical scheme being illustrated more clearly that in the embodiment of the present invention, in describing embodiment below, the required accompanying drawing used is briefly described, apparently, accompanying drawing in describing below is only some embodiments of the present invention, for those of ordinary skill in the art, on the premise of not paying creative work, it is also possible to obtain other accompanying drawing according to these accompanying drawings, wherein:
Fig. 1 is the structural representation that the present invention provides a preferred embodiment of integrated form fingerprint recognition module；
Fig. 2 is the stereo decomposing structural representation of integrated form fingerprint recognition module shown in Fig. 1；
Fig. 3 is the flexible PCB of integrated form fingerprint recognition module shown in Fig. 1 structural representation of angle when not bending；
Fig. 4 is the flexible PCB of integrated form fingerprint recognition module shown in Fig. 1 structural representation of another angle when not bending.
Detailed description of the invention
Below in conjunction with the accompanying drawing in the embodiment of the present invention, the technical scheme in the embodiment of the present invention is clearly and completely described, it is clear that described embodiment is only a part of embodiment of the present invention rather than whole embodiments.Based on the embodiment in the present invention, all other embodiments that those of ordinary skill in the art are obtained under not making creative work premise, broadly fall into the scope of protection of the invention.
Referring to Fig. 1 and Fig. 2, wherein, Fig. 1 is the structural representation that the present invention provides integrated form fingerprint recognition module one preferred embodiment, and Fig. 2 is the stereo decomposing structural representation of integrated form fingerprint recognition module shown in Fig. 1.
Described a kind of integrated form fingerprint recognition module 1 includes the flexible PCB 11 with fold-back characteristic, reinforced sheet 12, fingerprint chip 13 and button 14.
Described flexible PCB 11 includes the second flexible PCB 113 that the first flexible PCB 111 is oppositely arranged with described first flexible PCB 111 and is connected described first flexible PCB 111 and the connecting portion 115 of described second flexible PCB 113.Described first flexible PCB 111, described second flexible PCB 113 and described connecting portion 115 are integrated, and described first flexible PCB 111 and described second flexible PCB 113 parallel interval are arranged.
Described reinforced sheet 12 includes the first reinforced sheet 121 and the second reinforced sheet 123.Described first flexible PCB 111, described first reinforced sheet 121, described second reinforced sheet 123 and described second flexible PCB 113 are folded successively to be set and is connected by conducting resinl pressing.
Described first reinforced sheet 121 includes the adhesive surface (not shown) that installed surface 1211 and described installed surface 1211 are oppositely arranged and a plurality of opisthotonos para-position reference line 1215 etched on described installed surface 1211, the width of described opisthotonos para-position reference line 1215 is 0.1～0.3mm, and overlaps with the edge line of described second reinforced sheet 123.
Described fingerprint chip 13 is electrically connected away from the surface of described first reinforced sheet 121 with described first flexible PCB 111 by scolding tin.
Described button 14 is electrically connected away from the surface of described second reinforced sheet 123 with described second flexible PCB 113 by scolding tin.The center of described button 14 is perpendicular to described reinforced sheet 12 with the line at the center of described fingerprint chip 13.
Referring again to Fig. 2, and combining refering to Fig. 3 and Fig. 4, wherein, Fig. 3 is the flexible PCB of integrated form fingerprint recognition module shown in Fig. 1 structural representation of angle when not bending；Fig. 4 is the flexible PCB of integrated form fingerprint recognition module shown in Fig. 1 structural representation of another angle when not bending.
A kind of preparation method preparing integrated form fingerprint recognition module 1, comprises the following steps:
Step S1, offer flexible PCB 11, fingerprint chip 13, button 14 and two reinforced sheets 12, described flexible PCB 11 includes the second flexible PCB 113 that the first flexible PCB 111 is oppositely arranged with described first flexible PCB 111 and is connected described first flexible PCB 111 and the connecting portion 115 of described second flexible PCB 113, and reinforced sheet 12 described in two is divided into the first reinforced sheet 121 and the second reinforced sheet 123；
Step S2, described first reinforced sheet 121 include the adhesive surface that installed surface 1211 is oppositely arranged with described installed surface, etch a plurality of opisthotonos para-position reference line 1215 on described installed surface 1211；
Specifically, the position of described opisthotonos para-position reference line 1215 is by precalculating, make in prepared described integrated form fingerprint recognition module 1, during all side superimposed of described opisthotonos para-position reference line 1215 and described second reinforced sheet 123, the line at the center of described fingerprint chip 13 and the center of described button 14 can be perpendicular to described reinforced sheet 12, and the described opisthotonos para-position reference line 1215 of 3 a width of 0.1mm of etching is to observe and aliging in the present embodiment.
Step S3, respectively the adhesive surface of described first reinforced sheet 121 is connected with described first flexible PCB 111, described second reinforced sheet 123 is connected with described second flexible PCB 113；
Specifically, respectively the adhesive surface of described first reinforced sheet 121 is connected with described first flexible PCB 111 pressing by conducting resinl, described second reinforced sheet 123 is connected with described second flexible PCB 113 pressing, and described first reinforced sheet 121 and described second reinforced sheet 123 relative spacing are arranged.
Step S4, described fingerprint chip 13 is made to electrically connect with described first flexible PCB 111 by scolding tin, and arrange with described first reinforced sheet 121 relative spacing, make described button 14 electrically connect with described second flexible PCB 113 by scolding tin, and arrange with described second reinforced sheet 123 relative spacing；
Specifically, pass through surface mounting technology, scolding tin makes described fingerprint chip 13 electrically connect with described first flexible PCB 111, and arrange with described first reinforced sheet 121 relative spacing, make described button 14 electrically connect with described second flexible PCB 113 by scolding tin, and arrange with described second reinforced sheet 123 relative spacing.
Step S5, described flexible PCB 11 is bent from connecting portion it described 115, with reference to described opisthotonos para-position reference line 1215 position, described first reinforced sheet 121 and described second reinforced sheet 123 is connected by conducting resinl, described first flexible PCB 111 and described second flexible PCB 113 parallel interval are arranged, the center of described button 14 is perpendicular to described reinforced sheet 12 with the line at the center of described fingerprint chip 13, prepares described integrated form fingerprint recognition module 1.
Integrated form fingerprint recognition module 1 that the present invention provides and preparation method thereof has the advantages that
One, it is equipped with by described flexible PCB 11 and described reinforced sheet 12 and instead of Rigid Flex of the prior art, it is to avoid Rigid Flex presses for a long time to deform upon and causes fingerprint recognition to lose efficacy and the risk of button malfunction；
Two, the preparation method technique by using described flexible PCB 11 to make to manufacture described integrated form fingerprint recognition module 1 simplifies, fabrication cycle is short, low cost；
Three, making described flexible PCB 11 collapsed position accurate by arranging described opisthotonos para-position reference line 1215, the line at the center of described button 14 and the center of described fingerprint chip 13 is perpendicular to described reinforced sheet 12 accurately；
Four, by arranging described first reinforced sheet 121 and described second reinforced sheet 123 so that described fingerprint recognition module 1 is more sturdy and durable, the described para-position reference line 1215 that aligns is easier to, more convenient bonding.
The foregoing is only embodiments of the invention; not thereby the scope of the claims of the present invention is limited; every equivalent structure utilizing description of the invention and accompanying drawing content to be made or equivalence flow process conversion; or directly or indirectly it is used in other relevant technical field, the most in like manner it is included in the scope of patent protection of the present invention.
Claims (8)
1. an integrated form fingerprint recognition module, it is characterized in that, including flexible PCB, reinforced sheet, fingerprint chip and button, described flexible PCB includes the first flexible PCB, the second flexible PCB being oppositely arranged with described first flexible PCB, and connect described first flexible PCB and the connecting portion of described second flexible PCB, described first flexible PCB and described second flexible PCB parallel interval are arranged, described reinforced sheet includes the first reinforced sheet and the second reinforced sheet, described first flexible PCB, described first reinforced sheet, described second reinforced sheet and described second flexible PCB are folded successively to be set, described fingerprint chip is located at described first flexible PCB surface away from described first reinforced sheet, described button is located at described second flexible PCB surface away from described second reinforced sheet.
Integrated form fingerprint recognition module the most according to claim 1, it is characterised in that the center of described button is perpendicular to described reinforced sheet with the line at the center of described fingerprint chip.
Integrated form fingerprint recognition module the most according to claim 1, it is characterised in that described first flexible PCB, described second flexible PCB and described connecting portion are integrated.
Integrated form fingerprint recognition module the most according to claim 1, it is characterized in that, described first reinforced sheet includes the adhesive surface that installed surface is oppositely arranged and a plurality of opisthotonos para-position reference line etched on described installed surface with described installed surface, and the edge line of described opisthotonos para-position reference line and the second reinforced sheet overlaps.
Integrated form fingerprint recognition module the most according to claim 4, it is characterised in that the width of described opisthotonos para-position reference line is 0.1～0.3mm.
Integrated form fingerprint recognition module the most according to claim 1, it is characterised in that described first flexible PCB, described first reinforced sheet, described second reinforced sheet and described second flexible PCB pass sequentially through conducting resinl pressing and connect.
Integrated form fingerprint recognition module the most according to claim 1, it is characterised in that described fingerprint chip is electrically connected with described first flexible PCB by scolding tin, described button is electrically connected with described second flexible PCB by scolding tin.
8. the preparation method of an integrated form fingerprint recognition module, it is characterised in that comprise the following steps:
Step one, offer flexible PCB, fingerprint chip, button and two reinforced sheets, described flexible PCB includes the second flexible PCB that the first flexible PCB is oppositely arranged with described first flexible PCB and is connected described first flexible PCB and the connecting portion of described second flexible PCB, and reinforced sheet described in two is divided into the first reinforced sheet and the second reinforced sheet；
Step 2, described first reinforced sheet include the adhesive surface that installed surface is oppositely arranged with described installed surface, etch a plurality of opisthotonos para-position reference line on described installed surface；
Step 3, the adhesive surface of described first reinforced sheet is connected with described first flexible PCB, and described second reinforced sheet is connected with described second flexible PCB；
Step 4, described fingerprint chip is made to electrically connect with described first flexible PCB by scolding tin, and arrange with described first reinforced sheet relative spacing, make described button electrically connect with described second flexible PCB by scolding tin, and arrange with described second reinforced sheet relative spacing；
Step 5, described flexible PCB is bent from connecting portion it described, and with reference to described opisthotonos para-position reference line position, described first reinforced sheet and described second reinforced sheet is connected by conducting resinl, described first flexible PCB and described second flexible PCB parallel interval are arranged, the center of described button is perpendicular to described reinforced sheet with the line at the center of described fingerprint chip, prepares integrated form fingerprint recognition module.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610178090.2A CN105825194A (en) | 2016-03-25 | 2016-03-25 | Integrated fingerprint identification module and preparation method thereof |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610178090.2A CN105825194A (en) | 2016-03-25 | 2016-03-25 | Integrated fingerprint identification module and preparation method thereof |
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| CN105825194A true CN105825194A (en) | 2016-08-03 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201610178090.2A Pending CN105825194A (en) | 2016-03-25 | 2016-03-25 | Integrated fingerprint identification module and preparation method thereof |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN106304622A (en) * | 2016-11-11 | 2017-01-04 | 深圳天珑无线科技有限公司 | A kind of FPC plate |
| CN106446646A (en) * | 2016-08-16 | 2017-02-22 | 深圳天珑无线科技有限公司 | Fingerprint identification module and electronic device |
| CN106778483A (en) * | 2016-11-16 | 2017-05-31 | 江西合力泰科技有限公司 | A kind of bio-identification module with keypress function and its manufacture method |
| CN107145254A (en) * | 2017-03-24 | 2017-09-08 | 江西合力泰科技有限公司 | Bio-identification module with pressure inducing function |
| CN111970812A (en) * | 2020-08-10 | 2020-11-20 | 闻泰通讯股份有限公司 | Fingerprint button module and electronic equipment |
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| CN204375609U (en) * | 2014-12-12 | 2015-06-03 | 联想(北京)有限公司 | A kind of button and electronic equipment |
| CN105025650A (en) * | 2014-04-29 | 2015-11-04 | 南茂科技股份有限公司 | Flexible circuit film structure |
| CN205644574U (en) * | 2016-03-25 | 2016-10-12 | 邓力 | Integrated form fingerprint identification module |
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2016
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Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105025650A (en) * | 2014-04-29 | 2015-11-04 | 南茂科技股份有限公司 | Flexible circuit film structure |
| CN204375609U (en) * | 2014-12-12 | 2015-06-03 | 联想(北京)有限公司 | A kind of button and electronic equipment |
| CN205644574U (en) * | 2016-03-25 | 2016-10-12 | 邓力 | Integrated form fingerprint identification module |
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106446646A (en) * | 2016-08-16 | 2017-02-22 | 深圳天珑无线科技有限公司 | Fingerprint identification module and electronic device |
| CN106304622A (en) * | 2016-11-11 | 2017-01-04 | 深圳天珑无线科技有限公司 | A kind of FPC plate |
| CN106778483A (en) * | 2016-11-16 | 2017-05-31 | 江西合力泰科技有限公司 | A kind of bio-identification module with keypress function and its manufacture method |
| CN106778483B (en) * | 2016-11-16 | 2023-08-22 | 江西合力泰科技有限公司 | Biological recognition module with key function and manufacturing method thereof |
| CN107145254A (en) * | 2017-03-24 | 2017-09-08 | 江西合力泰科技有限公司 | Bio-identification module with pressure inducing function |
| CN107145254B (en) * | 2017-03-24 | 2023-05-23 | 江西合力泰科技有限公司 | Biological identification module with pressure sensing function |
| CN111970812A (en) * | 2020-08-10 | 2020-11-20 | 闻泰通讯股份有限公司 | Fingerprint button module and electronic equipment |
| CN111970812B (en) * | 2020-08-10 | 2024-03-19 | 闻泰通讯股份有限公司 | Fingerprint key module and electronic equipment |
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Application publication date: 20160803 |