CN104955270A - Flexible printed circuit (FPC) board - Google Patents
Flexible printed circuit (FPC) board Download PDFInfo
- Publication number
- CN104955270A CN104955270A CN201510344120.8A CN201510344120A CN104955270A CN 104955270 A CN104955270 A CN 104955270A CN 201510344120 A CN201510344120 A CN 201510344120A CN 104955270 A CN104955270 A CN 104955270A
- Authority
- CN
- China
- Prior art keywords
- golden finger
- fpc
- golden
- extension
- cover film
- 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.)
- Pending
Links
Classifications
-
- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
- H05K1/00—Printed circuits
- H05K1/02—Details
- H05K1/11—Printed elements for providing electric connections to or between printed circuits
- H05K1/118—Printed elements for providing electric connections to or between printed circuits specially for flexible printed circuits, e.g. using folded portions
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- Engineering & Computer Science (AREA)
- Microelectronics & Electronic Packaging (AREA)
- Structure Of Printed Boards (AREA)
Abstract
The invention discloses a flexible printed circuit (FPC) board, which comprises a substrate (1), a cover film (3) and golden fingers (2), wherein the golden fingers (2) are arranged in an FPC connection area; the cover film (3) is provided with a window (5); the trace end of each golden finger (2) is provided with a golden finger extension (4); the golden finger extensions (4) are located below the cover film (3); one side, which is at the trace ends of the golden fingers, of the window (5) is wavy, so that the joint of the trace end of each golden finger and the corresponding extension is covered with the cover film (3); by arranging the extensions, the possibility that the golden fingers are fractured at end joints is reduced; meanwhile, by adopting the wavy window, the joint of the trace end of the golden finger and the corresponding extension is covered with the cover film, so that a good protective effect is exerted, and the FPC golden fingers are prevented from fracturing and falling off; the cover film at the edge of the FPC connection area is kept, therefore the thickness of the edge of the FPC is increased, and the possibility that an FPC is fractured at the edge is greatly reduced.
Description
Technical field
The present invention relates to a kind of flexible print circuit board.
Background technology
FPC flexible print circuit board (Flexible Printed Circuit Board is called for short FPC) uses polyimide film to be base material, the wiring board sheet material made together with Copper Foil pressing.It has the many advantages such as excellent bending resistance folding endurance, weldability, ultra-thin volume and cost be low.
FPC is generally arranged golden finger and realize the connection with main circuit board, it is use connector to connect that current connected mode mainly contains two kinds: one, although this kind of method is easy to connect, the shortcomings such as the space needed for existence connects is large, grafting is unstable, use cost is high; Two is use the mode of welding to connect, but will weld, then need to remove coverlay, spill golden finger and form pad, the material of golden finger is generally Copper Foil, because golden finger is very thin, and the ductility of Copper Foil neither be fine, make the ability of FPC welding position resistance to stress very low, be easy to occur fractureing in production and Transportation Engineering, even the problem such as dactylolysis.
Summary of the invention
The object of the present invention is to provide a kind of flexible print circuit board, this wiring board can strengthen the resistance to stress ability of FPC welding position, avoids the phenomenon that FPC golden finger occurs fracture, comes off.
The technical solution adopted for the present invention to solve the technical problems is:
A kind of flexible print circuit board, comprise substrate, coverlay and be located at the golden finger of FPC bonding pad, described coverlay is provided with windows, and the line end of walking of described golden finger is provided with golden finger extension, and golden finger extension site is in the below of coverlay; Described to window in the side that golden finger walks line end be waveform, makes golden finger walk line end and extension and be coated to epiphragma in junction and cover.
Further, the length of described golden finger extension is 3 ~ 5mm.
Further, described in the sidepiece edge of windowing inside contract 1 ~ 2mm, make the side margins of FPC bonding pad retain the coverlay of 1 ~ 2mm.
The invention has the beneficial effects as follows, by arranging extension, reduce the possibility that golden finger ruptures at termination place, simultaneously, adopt corrugated windowing, make golden finger walk line end and extension to be coated to epiphragma in junction and to cover, play a good protection, avoid the phenomenon that FPC golden finger occurs fracture, comes off; The edge of FPC join domain retains coverlay, adds the thickness at FPC edge, FPC is reduced greatly in the possibility of edge breaks.
Accompanying drawing explanation
Below in conjunction with drawings and Examples, the present invention is further described:
Fig. 1 is structural representation of the present invention.
Embodiment
As shown in Figure 1, the invention provides a kind of flexible print circuit board, comprise substrate 1, coverlay 3 and the golden finger 2 being located at FPC bonding pad, described coverlay 3 is provided with windows 5, the line end of walking of described golden finger 2 is provided with golden finger extension 4, and golden finger extension 4 is positioned at the below of coverlay 3; Described windowing 5 is waveform in the side that golden finger walks line end, makes golden finger walk line end and extension and is coated to epiphragma 3 in junction and covers; Preferably, the length of golden finger extension 4 is 3 ~ 5mm, and golden finger 2 and golden finger extension 4 are integrated.Described window 5 sidepiece edge inside contract 1 ~ 2mm, make the side margins of FPC bonding pad retain the coverlay of 1 ~ 2mm.
By arranging extension, reduce the possibility that golden finger ruptures at termination place, simultaneously, adopt corrugated windowing, make golden finger walk line end and extension to be coated to epiphragma in junction and to cover, play a good protection, avoid the phenomenon that FPC golden finger occurs fracture, comes off; The edge of FPC join domain retains coverlay, adds the thickness at FPC edge, FPC is reduced greatly in the possibility of edge breaks.
The above is only preferred embodiment of the present invention, not does any pro forma restriction to the present invention; Any those of ordinary skill in the art, do not departing under technical solution of the present invention ambit, the Method and Technology content of above-mentioned announcement all can be utilized to make many possible variations and modification to technical solution of the present invention, or be revised as the Equivalent embodiments of equivalent variations.Therefore, every content not departing from technical solution of the present invention, according to technical spirit of the present invention to any simple modification made for any of the above embodiments, equivalent replacement, equivalence change and modification, all still belongs in the scope of technical solution of the present invention protection.
Claims (3)
1. a flexible print circuit board, comprise substrate (1), coverlay (3) and be located at the golden finger (2) of FPC bonding pad, described coverlay (3) is provided with window (5), it is characterized in that, the line end of walking of described golden finger (2) is provided with golden finger extension (4), and golden finger extension (4) is positioned at the below of coverlay (3); The side that described window (5) walk line end at golden finger is waveform, makes golden finger walk line end and extension and is coated to epiphragma (3) in junction and covers.
2. a kind of flexible print circuit board according to claim 1, is characterized in that, the length of described golden finger extension (4) is 3 ~ 5mm.
3. a kind of flexible print circuit board according to claim 1 and 2, is characterized in that, described in the window sidepiece edge of (5) inside contract 1 ~ 2mm, make the side margins of FPC bonding pad retain the coverlay of 1 ~ 2mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510344120.8A CN104955270A (en) | 2015-06-22 | 2015-06-22 | Flexible printed circuit (FPC) board |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510344120.8A CN104955270A (en) | 2015-06-22 | 2015-06-22 | Flexible printed circuit (FPC) board |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN104955270A true CN104955270A (en) | 2015-09-30 |
Family
ID=54169503
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510344120.8A Pending CN104955270A (en) | 2015-06-22 | 2015-06-22 | Flexible printed circuit (FPC) board |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104955270A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105578746A (en) * | 2016-02-25 | 2016-05-11 | 广东欧珀移动通信有限公司 | Rigid-flex board and mobile terminal |
| CN106211569A (en) * | 2016-09-06 | 2016-12-07 | 京东方科技集团股份有限公司 | A kind of backlight golden finger structure and display device |
| WO2022087840A1 (en) * | 2020-10-27 | 2022-05-05 | 京东方科技集团股份有限公司 | Display panel and manufacturing method therefor, and display device |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101346035A (en) * | 2007-07-13 | 2009-01-14 | 富葵精密组件(深圳)有限公司 | Flexible circuit board |
| CN103096642A (en) * | 2011-10-27 | 2013-05-08 | 比亚迪股份有限公司 | Manufacture method of flexible circuit board |
| CN103118488A (en) * | 2011-11-17 | 2013-05-22 | 深圳市比亚迪电子部品件有限公司 | Flexible printed circuit board |
| CN204031587U (en) * | 2014-08-13 | 2014-12-17 | 深圳市显创光电有限公司 | A kind of flexible PCB |
| CN204119645U (en) * | 2014-09-28 | 2015-01-21 | 江西鑫力华数码科技有限公司 | There is the flexible circuit board of the anti-jackknifing structure of circuit |
| CN204836793U (en) * | 2015-06-22 | 2015-12-02 | 安徽方兴科技股份有限公司 | Flexible printed circuit board |
-
2015
- 2015-06-22 CN CN201510344120.8A patent/CN104955270A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101346035A (en) * | 2007-07-13 | 2009-01-14 | 富葵精密组件(深圳)有限公司 | Flexible circuit board |
| CN103096642A (en) * | 2011-10-27 | 2013-05-08 | 比亚迪股份有限公司 | Manufacture method of flexible circuit board |
| CN103118488A (en) * | 2011-11-17 | 2013-05-22 | 深圳市比亚迪电子部品件有限公司 | Flexible printed circuit board |
| CN204031587U (en) * | 2014-08-13 | 2014-12-17 | 深圳市显创光电有限公司 | A kind of flexible PCB |
| CN204119645U (en) * | 2014-09-28 | 2015-01-21 | 江西鑫力华数码科技有限公司 | There is the flexible circuit board of the anti-jackknifing structure of circuit |
| CN204836793U (en) * | 2015-06-22 | 2015-12-02 | 安徽方兴科技股份有限公司 | Flexible printed circuit board |
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105578746A (en) * | 2016-02-25 | 2016-05-11 | 广东欧珀移动通信有限公司 | Rigid-flex board and mobile terminal |
| CN105578746B (en) * | 2016-02-25 | 2018-09-04 | 广东欧珀移动通信有限公司 | Rigid Flex and mobile terminal |
| CN106211569A (en) * | 2016-09-06 | 2016-12-07 | 京东方科技集团股份有限公司 | A kind of backlight golden finger structure and display device |
| WO2018045868A1 (en) * | 2016-09-06 | 2018-03-15 | 京东方科技集团股份有限公司 | Backlight gold-terminal structure and display device |
| CN106211569B (en) * | 2016-09-06 | 2019-10-25 | 京东方科技集团股份有限公司 | A kind of backlight golden finger structure and display device |
| US10973121B2 (en) | 2016-09-06 | 2021-04-06 | Boe Technology Group Co., Ltd. | Backlight golden finger structure and display device |
| WO2022087840A1 (en) * | 2020-10-27 | 2022-05-05 | 京东方科技集团股份有限公司 | Display panel and manufacturing method therefor, and display device |
| US11861119B2 (en) | 2020-10-27 | 2024-01-02 | Chengdu Boe Optoelectronics Technology Co., Ltd. | Display panel and method for manufacturing the same, and display apparatus |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| WD01 | Invention patent application deemed withdrawn after publication | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20150930 |