CN114698249A - Method for improving processing efficiency of mounting and pasting electromagnetic shielding film on flexible printed board - Google Patents
Method for improving processing efficiency of mounting and pasting electromagnetic shielding film on flexible printed board Download PDFInfo
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- CN114698249A CN114698249A CN202210351355.XA CN202210351355A CN114698249A CN 114698249 A CN114698249 A CN 114698249A CN 202210351355 A CN202210351355 A CN 202210351355A CN 114698249 A CN114698249 A CN 114698249A
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- Prior art keywords
- electromagnetic shielding
- shielding film
- flexible printed
- board
- pin
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- 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
- H05K3/00—Apparatus or processes for manufacturing printed circuits
- H05K3/0058—Laminating printed circuit boards onto other substrates, e.g. metallic substrates
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- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Microelectronics & Electronic Packaging (AREA)
- Shielding Devices Or Components To Electric Or Magnetic Fields (AREA)
Abstract
The invention discloses a method for improving the processing efficiency of mounting and pasting an electromagnetic shielding film on a flexible printed board, a manufacturing process of the flexible printed board, and the scheme is provided aiming at the problem of low film pasting and tearing efficiency in the prior art. The technical key point is that at least one end part of the electromagnetic shielding film transversely extends out of the jointed board to form an outer-board film stripping hand tearing position; respectively arranging PIN PINs in at least two different gaps in the same row of flexible printed boards on the jointed boards; and the electromagnetic shielding film is provided with a matched PIN sleeving hole at the position corresponding to the PIN needle. The electromagnetic shielding film packaging method has the advantages that the manual strip pasting process and the manual film tearing process are easier to carry out, and the mounting efficiency can be improved under the condition that the utilization rate of the electromagnetic shielding film is not reduced.
Description
Technical Field
The invention relates to a manufacturing process of a flexible printed board, in particular to a method for improving the processing efficiency of mounting and pasting an electromagnetic shielding film on the flexible printed board.
Background
The shielding film is one of important measures for improving the electromagnetic compatibility of electronic systems and electronic equipment, is a measure for preventing or reducing electromagnetic energy interference, can effectively control various electromagnetic interferences propagating in a space, improves the signal transmission quality of a circuit board, and is widely applied to flexible printed boards.
In the prior art, as shown in fig. 1 to 3, an old electromagnetic shielding film 20 is applied, and flexible printed boards 11 are arranged in rows and columns on a jointed board 10. The flexible printed boards 11 in the same row are covered by the same old electromagnetic shielding film 20, and only the pin 12 is left. The two side ends of the old electromagnetic shielding film 20 are located inside the jointed boards 10 to form an in-board film stripping hand tearing position 21.
Introduction of the mounting and pasting process: 1. the old electromagnetic shielding film 20 is processed into a desired size and shape; 2. heating and pre-attaching the flexible printed board 11; 3. pressing and fixing a quick press; 4. tearing off the protective film on the old electromagnetic shielding film 20; 5. and (5) baking and curing at high temperature.
The step 2 is manual strip pasting, manual alignment is needed, marking lines are made on the flexible printed board surface, and the electromagnetic shielding film is mounted and pasted according to the marking lines. The working procedure 4 is manual film tearing, and the utilization rate of the electromagnetic shielding film is obviously inversely proportional to the mounting and pasting efficiency due to the characteristics of the flexible printed board, such as shortness, thinness, shortness and the like. The higher the utilization rate of the electromagnetic shielding film is, the greater the mounting and pasting operation difficulty is, and the main reason is that after mounting and pasting pressing, the protective layer on the surface of the electromagnetic shielding film is extremely difficult to peel.
Disclosure of Invention
The invention aims to provide a method for improving the processing efficiency of mounting and pasting an electromagnetic shielding film on a flexible printed board, so as to solve the problems in the prior art.
The invention relates to a method for improving the processing efficiency of mounting and pasting an electromagnetic shielding film on a flexible printed board, which is characterized in that at least one end part of the electromagnetic shielding film transversely extends out of a jointed board to form an outer-board film stripping hand tearing position;
respectively arranging PIN PINs in at least two different gaps in the same row of flexible printed boards on the jointed boards; and the electromagnetic shielding film is provided with a matched PIN sleeving hole at the position corresponding to the PIN needle.
The material of the first end part of the electromagnetic shielding film is adjusted to the second end part in design and production, the first end part is close to the outer side of the flexible printed board at the edge, and the second end part extends out of the jointed board to form the outer film stripping hand tearing position of the board.
The number of the PIN needles is two in the same row of flexible printed boards, the first PIN needle is located in a gap between the two flexible printed boards closest to the first end, and the second PIN needle is located in a gap between the two flexible printed boards closest to the second end.
And rounding all inner corners of the electromagnetic shielding film.
The method for improving the processing efficiency of mounting and pasting the electromagnetic shielding film on the flexible printed board has the advantages that the manual strip pasting process and the manual film tearing process are easier to carry out, and the mounting and pasting efficiency can be improved under the condition that the utilization rate of the electromagnetic shielding film is not reduced. The design of radius angle makes the reduction loss when tearing the membrane, reduces the number of times of doing over again, also is one of the reasons that promote whole machining efficiency.
Drawings
FIG. 1 is a schematic structural view of a panel of the prior art;
fig. 2 is a schematic structural view of a prior art old electromagnetic shielding film;
FIG. 3 is a schematic structural diagram of a jointed board after a row of flexible printed boards and an old electromagnetic shielding film are laminated in the prior art;
FIG. 4 is a schematic structural view of an electromagnetic shielding film according to the present invention;
FIG. 5 is a schematic structural evolution of the electro-magnetic shielding film according to the present invention;
fig. 6 is a schematic structural view of a laminated structure of one row of flexible printed boards and the electromagnetic shielding film shown in fig. 4 according to the present invention.
Reference numerals:
10-jointed board, 11-flexible printed board, 12-PIN and 13-PIN PIN;
20-old electromagnetic shielding film, 21-inner-plate film stripping hand tearing position;
30-electromagnetic shielding film, 31-outer-plate stripping film hand-tearing position and 32-PIN hole.
Detailed Description
As shown in fig. 4 to 6, the method for improving the processing efficiency of mounting and attaching the electromagnetic shielding film on the flexible printed board according to the present invention specifically includes: in the same row of flexible printed boards 11 of panel 10, two PIN PINs 13 are provided. One PIN 13 is located in a gap between two adjacent flexible printed boards 11 on one side closest to the jointed board 10, and the other PIN 13 is located in a gap between two adjacent flexible printed boards 11 on the other side closest to the jointed board 10. The two PIN needles 13 are perpendicular to the plane of the jointed board 10 towards the direction of the electromagnetic shielding film 30. Each row of flexible printed boards 11 in panel 10 has the same PIN 13 arrangement.
The electromagnetic shielding film 30 is formed in a mold at one time, and at least one end of the electromagnetic shielding film is arranged to extend out of the jointed board 10 to form a board outer film stripping hand tearing position 31. And two positions of the electromagnetic shielding film 30 close to the end parts are respectively provided with a set of PIN holes 32, and the set of PIN holes 32 are matched with the PIN needles 13 on the splicing board 10. All inner corner positions within the electro-magnetic shielding film 30 are chamfered, with a round corner being preferred.
The working principle of the invention is as follows: when the film is pasted, the PIN holes 32 are in one-to-one correspondence with the PIN PINs 13, so that the electromagnetic shielding film 30 is quickly attached to a row of flexible printed boards 11, and only the PIN 12 part is exposed. When the film is torn, the protective film of the electromagnetic shielding film 30 can be quickly lifted at the film-peeling hand-tearing position 31 outside the board.
On the prior art basis, increase and mutually cooperate PIN needle 13 and cover PIN hole 32, can need not this time-consuming process of artifical counterpoint, directly cover PIN dress subsides. The interior angle design can avoid the film stripping time for two or more times caused by the fracture of the right angle when the protective film is stripped. At least one end of the electromagnetic shielding film 30 is pulled out of the outer side of the jointed board 10, and the outer-board stripping hand tearing position 31 is directly provided, so that a time-consuming cutter or other tool methods are not needed for manufacturing a stripping point.
Further optimization: in order not to increase the material cost of the electro-magnetic shielding film 30, the material utilization rate is maintained. One side of the electromagnetic shielding film 30 is shrunk to have a size, and the shrunk material is attached to the other side of the electromagnetic shielding film in a one-time forming die. The outer membrane stripping hand tearing position 31 extending out of the jointed board 10 does not consume extra materials. Of course, one skilled in the art will recognize that one edge of the reduced material will still cover flexible printed board 11 at the very edge of the marginal panel 10.
The method can greatly improve the laminating efficiency and precision and the processing efficiency of stripping the protective film, and is suitable for mounting and pasting products with all sizes and shapes except single-piece mounting and pasting.
It will be apparent to those skilled in the art that various other changes and modifications may be made in the above-described embodiments and concepts and all such changes and modifications are intended to be within the scope of the appended claims.
Claims (4)
1. A method for improving the processing efficiency of mounting and pasting an electromagnetic shielding film on a flexible printed board is characterized in that at least one end part of the electromagnetic shielding film (30) transversely extends out of a jointed board (10) to form an outer-board film stripping hand tearing position (31);
on the jointed board (10), PIN PINs (13) are respectively arranged in at least two different gaps in the same line of flexible printed boards (11); the electromagnetic shielding film (30) is provided with a matched PIN sleeving hole (32) at the position corresponding to the PIN needle (13).
2. The method for improving the processing efficiency of the flexible printed board mounting and electromagnetic shielding film processing according to claim 1, wherein the material of the first end portion of the electromagnetic shielding film (30) is adjusted to the second end portion during design and production, the first end portion is close to the outer side of the flexible printed board (11) at the edge, and the second end portion extends out of the jointed board (10) to form the board outer film-peeling hand-tearing position (31).
3. The method for improving the processing efficiency of mounting the electromagnetic shielding film on the flexible printed board according to claim 2, wherein two PIN PINs (13) are respectively arranged in the same row of flexible printed boards (11), a first PIN (13) is located in the gap between the two flexible printed boards (11) closest to the first end portion, and a second PIN (13) is located in the gap between the two flexible printed boards (11) closest to the second end portion.
4. The method for improving the processing efficiency of the flexible printed circuit board mounted electromagnetic shielding film according to claim 2, wherein all inner corners of the electromagnetic shielding film (30) are rounded.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210351355.XA CN114698249A (en) | 2022-04-02 | 2022-04-02 | Method for improving processing efficiency of mounting and pasting electromagnetic shielding film on flexible printed board |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210351355.XA CN114698249A (en) | 2022-04-02 | 2022-04-02 | Method for improving processing efficiency of mounting and pasting electromagnetic shielding film on flexible printed board |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN114698249A true CN114698249A (en) | 2022-07-01 |
Family
ID=82142606
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202210351355.XA Pending CN114698249A (en) | 2022-04-02 | 2022-04-02 | Method for improving processing efficiency of mounting and pasting electromagnetic shielding film on flexible printed board |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN114698249A (en) |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201873640U (en) * | 2010-11-08 | 2011-06-22 | 昆山上艺电子有限公司 | Double-sided adhesive tape with quickly removable release paper |
| KR101337979B1 (en) * | 2012-06-22 | 2013-12-09 | (주)우리엔지니어링 | Emi shield film removal method and removal device |
| CN204506069U (en) * | 2015-03-03 | 2015-07-29 | 宸鸿科技(厦门)有限公司 | Dyestripping structure |
| CN205040101U (en) * | 2015-09-30 | 2016-02-17 | 景旺电子科技(龙川)有限公司 | Cover membrane cover laminating device |
| CN106102351A (en) * | 2016-07-05 | 2016-11-09 | 惠州市金百泽电路科技有限公司 | A kind of manufacture method of coverlay protection electromagnetic shielding film rigid-flex combined board |
| CN209845440U (en) * | 2019-03-21 | 2019-12-24 | 信利半导体有限公司 | FPC (flexible printed circuit) |
| CN112135423A (en) * | 2020-09-03 | 2020-12-25 | 华通精密线路板(惠州)有限公司 | Processing technology for improving EMI film tearing convenience |
| CN213835144U (en) * | 2020-11-25 | 2021-07-30 | 苏州龙方电子有限公司 | Electronic shielding film |
-
2022
- 2022-04-02 CN CN202210351355.XA patent/CN114698249A/en active Pending
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201873640U (en) * | 2010-11-08 | 2011-06-22 | 昆山上艺电子有限公司 | Double-sided adhesive tape with quickly removable release paper |
| KR101337979B1 (en) * | 2012-06-22 | 2013-12-09 | (주)우리엔지니어링 | Emi shield film removal method and removal device |
| CN204506069U (en) * | 2015-03-03 | 2015-07-29 | 宸鸿科技(厦门)有限公司 | Dyestripping structure |
| CN205040101U (en) * | 2015-09-30 | 2016-02-17 | 景旺电子科技(龙川)有限公司 | Cover membrane cover laminating device |
| CN106102351A (en) * | 2016-07-05 | 2016-11-09 | 惠州市金百泽电路科技有限公司 | A kind of manufacture method of coverlay protection electromagnetic shielding film rigid-flex combined board |
| CN209845440U (en) * | 2019-03-21 | 2019-12-24 | 信利半导体有限公司 | FPC (flexible printed circuit) |
| CN112135423A (en) * | 2020-09-03 | 2020-12-25 | 华通精密线路板(惠州)有限公司 | Processing technology for improving EMI film tearing convenience |
| CN213835144U (en) * | 2020-11-25 | 2021-07-30 | 苏州龙方电子有限公司 | Electronic shielding film |
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