CN206251438U - A kind of fingerprint identification device based on FPC - Google Patents
A kind of fingerprint identification device based on FPC Download PDFInfo
- Publication number
- CN206251438U CN206251438U CN201621337600.8U CN201621337600U CN206251438U CN 206251438 U CN206251438 U CN 206251438U CN 201621337600 U CN201621337600 U CN 201621337600U CN 206251438 U CN206251438 U CN 206251438U
- Authority
- CN
- China
- Prior art keywords
- hole
- fpc
- cover layer
- identification device
- fingerprint recognition
- Prior art date
- 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.)
- Expired - Fee Related
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Abstract
The utility model discloses a kind of fingerprint identification device based on FPC, including FPC and fingerprint recognition chip, FPC includes the first cover layer, second cover layer, first conductive layer, basic unit, second conductive layer and the 3rd cover layer, there is welding region on first conductive layer, the fingerprint recognition chip is welded in the welding region, first cover layer has the first through hole of rectangle, second cover layer has the second through hole of rectangle, the first through hole and the second through hole are arranged such that first, one is formed between two cover layers and encloses stage portion, the FPC also includes through hole；There is adhesive glue in the first through hole and the second through hole.Fingerprint identification device fingerprint recognition chip of the present utility model and FPC fixing-stable.
Description
Technical field
The utility model is related to FPC field, and in particular to a kind of fingerprint recognition dress based on FPC
Put.
Background technology
Fingerprint recognition has been widely used for every field at present, such as on the electronic product such as mobile phone, computer, and with
Requirement more and more higher to miniaturization of electronic products, starting to coordinate FPC with fingerprint recognition chip in the prior art makes
With, fingerprint recognition chip is welded on FPC, recycle adhesive glue to add fingerprint recognition chip and FPC
It is strong fixed, but existing construction bonds glue is difficult to apply sometimes.
Utility model content
Utility model purpose：The utility model is intended to overcome the defect of prior art, there is provided one kind is based on FPC
Fingerprint identification device.
Technical scheme：A kind of fingerprint identification device based on FPC, including FPC and fingerprint recognition core
Piece, the FPC includes the first cover layer, the second cover layer, the first conductive layer, basic unit, the successively from top to bottom
Two conductive layers and the 3rd cover layer, the fingerprint recognition chip welding region with rectangle, the finger on first conductive layer
Line identification chip is welded in the welding region, and first cover layer has the first through hole of rectangle, second covering
There is film the second through hole of rectangle, the first through hole and the second through hole to be formed between being arranged such that first and second cover layer
One circle stage portion, the fingerprint recognition chip is located in second through hole, and the FPC also includes through hole, described
The upper surface of the conductive layer of through hole insertion first and the lower surface of the 3rd cover layer, the upper end open of the through hole are located at institute
State between the edge of fingerprint recognition chip and the second through hole；There is adhesive glue in the first through hole and the second through hole.
Further, the through hole has 4.
Further, each side of welding region has 1 through hole.
Further, first conductive layer and the second conductive layer are Copper Foil.
Further, the basic unit is polyimides basic unit.
Further, the area of the first through hole connects more than the face of the second through hole.
Further, the first through hole and the second through hole can not be rectangular through-hole, but manhole, first through hole
With the radius that the radius of the axis collinear of the second through hole, and first through hole is more than the second through hole.Such setting is more beneficial for gluing
Gum deposit enters the second through hole by through hole, enters back into first through hole.
Beneficial effect：Fingerprint identification device based on FPC of the present utility model, bonds glue and is easier to apply, and
It is not in the situation of bubbles in excessive glue and glue.
Brief description of the drawings
Fig. 1 is the schematic cross-section of fingerprint identification device；
Fig. 2 is fingerprint identification device top view.
Specific embodiment
Reference：1 first cover layer；2 second cover layers；3 first conductive layers；4 basic units；5 second conductive layers；6
3rd cover layer；11 through holes；12 adhesive glues.
A kind of fingerprint identification device based on FPC, including FPC and fingerprint recognition chip 10, it is described
FPC includes the first cover layer 1, the second cover layer 2, the first conductive layer 3, basic unit 4, second successively from top to bottom
The cover layer 6 of conductive layer 5 and the 3rd, the fingerprint recognition chip welding region with rectangle, the finger on first conductive layer 1
Line identification chip is welded in the welding region, and first cover layer has the first through hole of rectangle, second covering
There is film the second through hole of rectangle, the first through hole and the second through hole to be formed between being arranged such that first and second cover layer
One circle stage portion, the fingerprint recognition chip is located in second through hole, and the FPC also includes through hole 11, institute
State the upper surface of the first conductive layer of insertion 3 of through hole 11 and the lower surface of the 3rd cover layer 6, the upper end open of the through hole
Between the fingerprint recognition chip and the edge of the second through hole；There is adhesive glue in the first through hole and the second through hole.
The through hole has 4.Each side of welding region has 1 through hole, i.e., 4 through holes are located at fingerprint recognition respectively
Four sides of chip.First conductive layer and the second conductive layer are Copper Foil.The basic unit is polyimides basic unit.
As shown in Figure 1, 2, when FPC of the present utility model makes, fingerprint recognition chip is welded on first conductive
In the welding region of layer, so as to realize the electrical connection of fingerprint recognition chip and FPC, afterwards from flexible circuitry back
The opening of through hole the second through hole is introduced into by through hole to adhesive glue, adhesive glue is injected in first and second through hole, full of
First through hole is entered back into after two through holes, due to the presence of a circle stage portion, adhesive glue is more easily led to full of whole first and second
Hole, fingerprint recognition chip steadily is fixed in welding region, and is not in the situation that glue overflows, and due to viscous
Gum deposit enters back into first through hole from through hole into the second through hole, can effectively prevent bubble from entering in adhesive glue.
Although the utility model is illustrated and described with regard to preferred embodiment, those skilled in the art should manage
Solution, without departing from claim limited range of the present utility model, the utility model can be carried out various change and
Modification.
Claims (5)
1. a kind of fingerprint identification device based on FPC, it is characterised in that including FPC and fingerprint recognition core
Piece, the FPC includes the first cover layer, the second cover layer, the first conductive layer, basic unit, the successively from top to bottom
Two conductive layers and the 3rd cover layer, the fingerprint recognition chip welding region with rectangle, the finger on first conductive layer
Line identification chip is welded in the welding region, and first cover layer has the first through hole of rectangle, second covering
There is film the second through hole of rectangle, the first through hole and the second through hole to be formed between being arranged such that first and second cover layer
One circle stage portion, the fingerprint recognition chip is located in second through hole, and the FPC also includes through hole, described
The upper surface of the conductive layer of through hole insertion first and the lower surface of the 3rd cover layer, the upper end open of the through hole are located at institute
State between the edge of fingerprint recognition chip and the second through hole；There is adhesive glue in the first through hole and the second through hole.
2. the fingerprint identification device based on FPC according to claim 1, it is characterised in that the through hole tool
There are 4.
3. the fingerprint identification device based on FPC according to claim 2, it is characterised in that welding region it is every
Individual side has 1 through hole.
4. the fingerprint identification device based on FPC according to claim 1, it is characterised in that described first is conductive
Layer and the second conductive layer are Copper Foil.
5. the fingerprint identification device based on FPC according to claim 1, it is characterised in that the basic unit is poly-
Acid imide basic unit.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621337600.8U CN206251438U (en) | 2016-12-07 | 2016-12-07 | A kind of fingerprint identification device based on FPC |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621337600.8U CN206251438U (en) | 2016-12-07 | 2016-12-07 | A kind of fingerprint identification device based on FPC |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206251438U true CN206251438U (en) | 2017-06-13 |
Family
ID=59004180
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201621337600.8U Expired - Fee Related CN206251438U (en) | 2016-12-07 | 2016-12-07 | A kind of fingerprint identification device based on FPC |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206251438U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108391368A (en) * | 2018-03-06 | 2018-08-10 | 东莞森玛仕格里菲电路有限公司 | One kind burying copper billet board manufacturing method |
| WO2020182089A1 (en) * | 2019-03-08 | 2020-09-17 | Oppo广东移动通信有限公司 | Electronic device |
| WO2021114266A1 (en) * | 2019-12-13 | 2021-06-17 | 南昌欧菲生物识别技术有限公司 | Fingerprint module and electronic device |
-
2016
- 2016-12-07 CN CN201621337600.8U patent/CN206251438U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108391368A (en) * | 2018-03-06 | 2018-08-10 | 东莞森玛仕格里菲电路有限公司 | One kind burying copper billet board manufacturing method |
| WO2020182089A1 (en) * | 2019-03-08 | 2020-09-17 | Oppo广东移动通信有限公司 | Electronic device |
| WO2021114266A1 (en) * | 2019-12-13 | 2021-06-17 | 南昌欧菲生物识别技术有限公司 | Fingerprint module and electronic device |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20170613 Termination date: 20211207 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |