CN202262057U - Breaking-resisting structure of flexible printed circuit (FPC) pad - Google Patents
Breaking-resisting structure of flexible printed circuit (FPC) pad Download PDFInfo
- Publication number
- CN202262057U CN202262057U CN201120253151XU CN201120253151U CN202262057U CN 202262057 U CN202262057 U CN 202262057U CN 201120253151X U CN201120253151X U CN 201120253151XU CN 201120253151 U CN201120253151 U CN 201120253151U CN 202262057 U CN202262057 U CN 202262057U
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- pad
- fpc
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- green oil
- solder mask
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Abstract
The utility model discloses a breaking-resisting structure of a flexible printed circuit (FPC) pad, which is arranged on an FPC board body and comprises a pad arranged on the FPC board body and a solder mask window area arranged on the pad in overlaying mode. The breaking-resisting structure of the FPC pad is characterized in that area of the pad is larger than that of the solder mask window area. In the embodiment, due to the fact that the area of the pad is larger than that of the solder mask window area, a solder mask is covered on a connection position of the pad and a non-pad so as to enable the pad to be connected with the FPC firmly by enlarging the pad and reducing the solder mask window. Therefore, the pad is not easy to break during folding and welding, service life of products is prolonged, and the structure is simple and easy to obtain.
Description
Technical field
The utility model relates to the circuit board technology field, the anti-fracture structure of in particular a kind of FPC pad.
Background technology
The a lot of situation of FPC (FPC) need be with hardboard or in addition-and FPC links together, and the form that can adopt connector to connect also can directly be carried out the form of plate to the plate welding.Because plate is ripe to the plate welding procedure, equipment requirements is simple, so using the most extensively in electron trade is the form of plate to the plate welding.
At present, under most situation, the pad at conventional FPC plate (flexible PCB) edge is the right and wrong SMD design (abbreviation of SMD:Surface Mounted Devices all; Mean: surface mount device), promptly green oil window bigger than actual pad, so pad can better not be connected with plank; As shown in Figure 1, the green oil district 130 of windowing is bigger than actual pad 120 on FPC plate 100, when pad bending, welding; Can make the pad root bigger stress occur, add the edge effect of scolding tin in welding process, the pad root can produce very big fragility; Therefore, in welding, especially in process of rework, be easy to cause solder pad to rupture at pad root place; As shown in Figure 1ly make product failure, greatly reduce the useful life of product in the just fracture easily of pad of pad with unusual pad junction 110.
Therefore, prior art awaits to improve and development.
The utility model content
In view of the deficiency of above-mentioned prior art, the purpose of the utility model is to provide a kind of FPC pad anti-fracture structure, and it is connected pad more firmly with FPC, thereby makes this kind pad in bending, easy fracture not during welding, and it is simple in structure, and it is easy to realize.
The technical scheme of the utility model is following:
The anti-fracture structure of a kind of FPC pad is arranged on the FPC plate body, comprise the pad that is arranged on the said FPC plate body and with the overlapping green oil district of windowing that is provided with of said pad, wherein, the area of said pad is bigger than the window area in district of said green oil.
The anti-fracture structure of said FPC pad, wherein, the area of said pad than said green oil window the district area big 0.6 square millimeter.
The anti-fracture structure of FPC pad that the utility model provided is because the area that has adopted said pad is bigger than the window area in district of said green oil, through adding large bonding pad; Dwindle green oil and window, thereby make pad and non-pad junction cover green oil pad is connected more firmly with FPC, thereby makes this kind pad in bending; Easy fracture not during welding; Prolonged the useful life of product, and it is simple in structure, realizes easily.
Description of drawings
Fig. 1 is the FPC pad structure sketch map of prior art.
Fig. 2 is the anti-fracture structure chart of FPC pad of the utility model embodiment.
Embodiment
The utility model provides a kind of FPC pad anti-fracture structure, for purpose, technical scheme and the effect that makes the utility model is clearer, clear and definite, below with reference to accompanying drawing and give an actual example to the utility model further explain.Should be appreciated that specific embodiment described herein only in order to explanation the utility model, and be not used in qualification the utility model.
The anti-fracture structure of a kind of FPC pad that the utility model embodiment provides, as shown in Figure 2, be arranged on the FPC plate body 200, comprise the pad 220 that is arranged on the said FPC plate body 200 and with the overlapping green oil district 230 of windowing that is provided with of said pad 220.Wherein, green oil is windowed: pad that promptly need weld or circuit do not need green oil protection; This part zone is called green oil and windows; Green oil as shown in Figure 2 is windowed and is distinguished 230, is that FPC production is accomplished the actual pad size of seeing, this zone is not cover green oil.
210 zones are the pad and the non-pad junction of present embodiment among Fig. 2, adopt in the present embodiment, and the area of said pad 220 is bigger than said green oil district's 230 the area of windowing.Be that present embodiment is in order to prevent the fracture of FPC panel edges pad; On the basis of existing technology through adding the green oil area coverage of large bonding pad 220, dwindle the green oil area in district 230 of windowing, thereby make pad pad is connected more firmly with FPC with non-pad junction 210 covering green oils; Thereby improve the test percent of pass; And the newspaper loss rate in the minimizing assembling process, finally can reduce the repair rate that produces by FPC pad fracture, prolong product useful life.
Preferably; The area that adopts said pad 220 is bigger 0.6 square millimeter than the window area in district 230 of said green oil; Pad 220 and green oil 230 width of windowing are identical in the present embodiment; Than the green oil 230 long 0.6mm that window, a-quadrant as shown in Figure 2 is that the area of pad 220 is bigger 0.6 square millimeter than the window area in district 230 of said green oil at length direction pad 220, and this a-quadrant is covered by green oil.It is bigger to make pad and non-pad junction 210 cover the green oil area, thereby pad is connected with FPC more firmly.
In sum, the anti-fracture structure of FPC pad that the utility model provided is because the area that has adopted said pad is bigger than the window area in district of said green oil; Through adding large bonding pad, dwindle green oil and window, thereby make pad and non-pad junction cover green oil pad is connected more firmly with FPC; Thereby make this kind pad in bending, easy fracture not during welding has prolonged useful life of product; And it is simple in structure, realizes easily.
Should be understood that; The application of the utility model is not limited to above-mentioned giving an example; Concerning those of ordinary skills, can improve or conversion according to above-mentioned explanation, all these improvement and conversion all should belong to the protection range of the utility model accompanying claims.
Claims (2)
1. anti-fracture structure of FPC pad; Be arranged on the FPC plate body; Comprise the pad that is arranged on the said FPC plate body and with the overlapping green oil district of windowing that is provided with of said pad, it is characterized in that the area of said pad is bigger than the window area in district of said green oil.
2. according to the anti-fracture structure of the said FPC pad of claim 1, it is characterized in that, the area of said pad than said green oil window the district area big 0.6 square millimeter.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201120253151XU CN202262057U (en) | 2011-07-18 | 2011-07-18 | Breaking-resisting structure of flexible printed circuit (FPC) pad |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201120253151XU CN202262057U (en) | 2011-07-18 | 2011-07-18 | Breaking-resisting structure of flexible printed circuit (FPC) pad |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202262057U true CN202262057U (en) | 2012-05-30 |
Family
ID=46123230
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201120253151XU Expired - Fee Related CN202262057U (en) | 2011-07-18 | 2011-07-18 | Breaking-resisting structure of flexible printed circuit (FPC) pad |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202262057U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105142337A (en) * | 2015-09-10 | 2015-12-09 | 深圳华麟电路技术有限公司 | Inner layer bonding pad later-windowed rigid-flexible printed circuit board and manufacturing method thereof |
| CN105163501A (en) * | 2015-08-18 | 2015-12-16 | 珠海方正科技高密电子有限公司 | Bonding pad windowing method and printed circuit board (PCB) |
| CN106304627A (en) * | 2015-05-13 | 2017-01-04 | 上海和辉光电有限公司 | A kind of test pad structure and preparation method thereof |
-
2011
- 2011-07-18 CN CN201120253151XU patent/CN202262057U/en not_active Expired - Fee Related
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106304627A (en) * | 2015-05-13 | 2017-01-04 | 上海和辉光电有限公司 | A kind of test pad structure and preparation method thereof |
| CN106304627B (en) * | 2015-05-13 | 2019-10-29 | 上海和辉光电有限公司 | A kind of test pad structure and preparation method thereof |
| CN105163501A (en) * | 2015-08-18 | 2015-12-16 | 珠海方正科技高密电子有限公司 | Bonding pad windowing method and printed circuit board (PCB) |
| CN105163501B (en) * | 2015-08-18 | 2018-08-07 | 珠海方正科技高密电子有限公司 | A kind of pad windowing method and pcb board |
| CN105142337A (en) * | 2015-09-10 | 2015-12-09 | 深圳华麟电路技术有限公司 | Inner layer bonding pad later-windowed rigid-flexible printed circuit board and manufacturing method thereof |
| CN105142337B (en) * | 2015-09-10 | 2018-05-22 | 深圳华麟电路技术有限公司 | A kind of Rigid Flex to open a window after internal layer pad and preparation method thereof |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20120530 Termination date: 20130718 |