CN108012406A - Stretchable FPC plates and preparation method thereof - Google Patents
Stretchable FPC plates and preparation method thereof Download PDFInfo
- Publication number
- CN108012406A CN108012406A CN201711276943.7A CN201711276943A CN108012406A CN 108012406 A CN108012406 A CN 108012406A CN 201711276943 A CN201711276943 A CN 201711276943A CN 108012406 A CN108012406 A CN 108012406A
- Authority
- CN
- China
- Prior art keywords
- copper foil
- rolled copper
- fpc plates
- base plate
- elastic base
- 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
- H05K1/0277—Bendability or stretchability details
- H05K1/028—Bending or folding regions of flexible printed circuits
-
- 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
- H05K3/0011—Working of insulating substrates or insulating layers
- H05K3/0044—Mechanical working of the substrate, e.g. drilling or punching
-
- 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
- H05K2201/00—Indexing scheme relating to printed circuits covered by H05K1/00
- H05K2201/03—Conductive materials
- H05K2201/0332—Structure of the conductor
- H05K2201/0335—Layered conductors or foils
- H05K2201/0355—Metal foils
-
- 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
- H05K2203/00—Indexing scheme relating to apparatus or processes for manufacturing printed circuits covered by H05K3/00
- H05K2203/06—Lamination
- H05K2203/068—Features of the lamination press or of the lamination process, e.g. using special separator sheets
Landscapes
- Engineering & Computer Science (AREA)
- Microelectronics & Electronic Packaging (AREA)
- Manufacturing & Machinery (AREA)
- Parts Printed On Printed Circuit Boards (AREA)
Abstract
The present invention relates to a kind of stretchable FPC plates and preparation method thereof, the stretchable FPC plates include elastic base plate, the first rolled copper foil and the second rolled copper foil.First rolled copper foil is sticked to be sticked in the another side of the elastic base plate in the wherein one side of the elastic base plate, second rolled copper foil.Above-mentioned stretchable FPC plates, elastic base plate, the first rolled copper foil and the second rolled copper foil can not only freely bend, fold, and can also be stretched to a certain extent, resilient, therefore will not cause product rejection after above-mentioned stretchable FPC plate stretchings again after being stretched.
Description
Technical field
The present invention relates to a kind of FPC plates, more particularly to a kind of stretchable FPC plates and preparation method thereof.
Background technology
Traditional FPC (Flexible Printed Circui t, flexible PCB) plate is generally by copper foil+glue+backing material plate
Or copper foil+backing material plate composition, wherein backing material plate is polyimide plate, and polyimide plate has excellent flexural property, so that
So that FPC plates have excellent flexural property.Although FPC plates freely can bend and fold, do not possess tensility energy, if
Repeatedly stretching FPC plates the circuit on FPC plates will be caused to occur opening a way and scrapping, thus FPC plates can not be applied to it is stretchable
In product.
The content of the invention
Based on this, it is necessary to the defects of overcoming the prior art, there is provided a kind of stretchable FPC plates and preparation method thereof, it
It can be stretched, product rejection will not be caused after being stretched.
Its technical solution is as follows：A kind of stretchable FPC plates, including：Elastic base plate, the first rolled copper foil and the second calendering
Copper foil, first rolled copper foil is sticked to be sticked in institute in the wherein one side of the elastic base plate, second rolled copper foil
State the another side of elastic base plate.
A kind of production method of FPC plates, includes the following steps：Prepare elastic base plate and two pieces of rolled copper foils；By the bullet
Property substrate is placed between two pieces of rolled copper foils；The rolled copper foil, the elastic base plate carried out pressing handle to be covered
Copper coin；Figure is produced on the two sides of the copper-clad plate respectively.
Above-mentioned stretchable FPC plates, elastic base plate, the first rolled copper foil and the second rolled copper foil can not only be scratched freely
Bent, folding, and can also be stretched to a certain extent, resilient, therefore above-mentioned stretchable FPC plates are drawn again after being stretched
It will not cause product rejection after stretching.
Further, the elastic base plate is TPU plates.Pressed between TPU plates and the first rolled copper foil, the second rolled copper foil
After can effectively be combined together, be not easy to because of stress divide between the first rolled copper foil, the second rolled copper foil
From phenomenon.
Further, first rolled copper foil, second rolled copper foil are tensile strength in 350N/mm2~
450N/mm2And rolled copper foil of the elongation more than 20%.In this way, the first rolled copper foil, the second rolled copper foil and TPU plates
With reference to rear, enable to FPC plates that there is good tensility energy.Specifically, the first rolled copper foil, the second rolled copper foil are
Tensile strength is in 400N/mm2~420N/mm2And rolled copper foil of the elongation more than 20%.
Further, first rolled copper foil, the thickness of second rolled copper foil are 14um~22um.In this way,
FPC plates have good tensility energy.
Further, silver coated, layer gold or solder mask on first rolled copper foil and second rolled copper foil.
In this way, silver layer, layer gold or solder mask can play a protective role the first rolled copper foil and the second rolled copper foil, FPC plates can be extended
Service life.In addition, the draftability of silver coated, layer gold FPC plates, flexure bending performance are still preferable.
Further, first rolled copper foil is line layer, and being pressed on first rolled copper foil has TPU layer or covering
Film；Second rolled copper foil is pad and/or golden finger, silver coated or layer gold on second rolled copper foil.In this way,
TPU layer, cover layer can play a protective role line layer, can extend the service life of FPC plates.Silver layer, layer gold to pad and/or
Golden finger can play a protective role.In addition, TPU's is of low cost, silver layer or gold are replaced by pressing TPU layer on line layer
Layer, can reduce the manufacture cost of FPC plates.
Further, first rolled copper foil, second rolled copper foil are line layer and pad and/or golden hand
Refer to, being pressed on the line layer has TPU layer；Silver coated or layer gold on the pad and/or golden finger.
Further, first rolled copper foil and/or the second rolled copper foil are line layer, the conducting wire in the line layer
In wavy.In this way, when FPC plate stretchings or bending, wavy conducting wire is not easy to be broken by pulling force.
Further, the elastic base plate is TPU plates, the pressing temperature that the rolled copper foil is pressed with the TPU plates
Spend for 130 DEG C~190 DEG C, pressing time is 300S~500S.In this way, it can guarantee that knot good between rolled copper foil and TPU plates
Close effect.
Brief description of the drawings
Fig. 1 is the structure diagram of the stretchable FPC plates described in the embodiment of the present invention；
Fig. 2 is the rolled copper foil in the stretchable FPC plates described in the embodiment of the present invention and showing in TPU plate bonding processes
It is intended to.
Reference numeral：
10th, elastic base plate, the 20, first rolled copper foil, 21, line layer, 22, pad, the 30, second rolled copper foil, 31, circuit
Layer, 32, pad, 41, silver layer, 42, TPU layer, 50, release film, 60, backing plate, 70, rolled copper foil.
Embodiment
In order to make the foregoing objectives, features and advantages of the present invention clearer and more comprehensible, below in conjunction with the accompanying drawings to the present invention
Embodiment be described in detail.Many details are elaborated in the following description in order to fully understand this hair
It is bright.But the invention can be embodied in many other ways as described herein, those skilled in the art can be not
Similar improvement is done in the case of running counter to intension of the present invention, therefore the present invention is from the limitation of following public specific embodiment.
In the description of the present invention, it is to be understood that term " first ", " second " are only used for description purpose, and cannot
It is interpreted as indicating or implies relative importance or imply the quantity of the technical characteristic indicated by indicating.Thus, define " the
One ", at least one this feature can be expressed or be implicitly included to the feature of " second ".In the description of the present invention, " multiple "
It is meant that at least two, such as two, three etc., unless otherwise specifically defined.
In the description of the present invention, it is to be understood that, can be with when an element is considered as " connection " another element
It is directly to another element or may be simultaneously present intermediary element.On the contrary, when element for be referred to as " direct " with it is another
When element connects, there is no intermediary element.
In one embodiment, referring to Fig. 1, a kind of stretchable FPC plates, including elastic base plate 10, first roll copper
20 and second rolled copper foil 30 of paper tinsel.First rolled copper foil 20 is sticked in the wherein one side of the elastic base plate 10, described
Second rolled copper foil 30 is sticked in the another side of the elastic base plate 10.
Above-mentioned stretchable FPC plates, elastic base plate 10, the first rolled copper foil 20 and the second rolled copper foil 30 can not only
Freely bend, fold, and can also be stretched to a certain extent, resilient, therefore above-mentioned stretchable again after being stretched
It will not cause product rejection after FPC plate stretchings.
Specifically, the elastic base plate 10 is TPU plates.TPU (Thermoplastic Urethane, thermoplastic polyurethane
Elastomer) can effectively it be combined together after pressing between plate and the first rolled copper foil 20, the second rolled copper foil 30, it is not easy to
Occurs segregation phenomenon because of stress between the first rolled copper foil 20, the second rolled copper foil 30.In another embodiment, bullet
Property substrate 10 can also be silica gel plate or rubber slab.
Wherein, the first rolled copper foil 20, the second rolled copper foil 30 and TPU using different tensile strength from different elongations
Plate is pressed to obtain FPC plates, the first rolled copper foil 20, the tensile strength of the second rolled copper foil 30 and elongation and FPC plates
Shown in the following form of tensile property：
| Tensile strength (Nmm2) | Elongation | The tensile property of FPC plates |
| 300 | 10% | Difference |
| 350 | 10% | Generally |
| 400 | 10% | Generally |
| 450 | 10% | Generally |
| 500 | 10% | Difference |
| 300 | 20% | Generally |
| 350 | 20% | It is good |
| 400 | 20% | It is excellent |
| 450 | 20% | It is good |
| 500 | 20% | Generally |
| 300 | 30% | Generally |
| 350 | 30% | It is good |
| 400 | 30% | It is excellent |
| 450 | 30% | It is good |
| 500 | 30% | Difference |
In the present embodiment, further, first rolled copper foil 20, second rolled copper foil 30 are tensile strength
In 350N/mm2~450N/mm2And rolled copper foil of the elongation more than 20%.In this way, the first rolled copper foil 20, second is pressed
Prolong copper foil 30 with after the hardened conjunctions of TPU, enabling to FPC plates that there is good tensility energy.Specifically, the first rolled copper foil
20th, the second rolled copper foil 30 is tensile strength in 400N/mm2~420N/mm2And calendering copper of the elongation more than 20%
Paper tinsel.
Further, first rolled copper foil 20, the thickness of second rolled copper foil 30 are 14um~22um.Such as
This, FPC plates have good tensility energy.Specifically, the first rolled copper foil 20, the thickness of the second rolled copper foil 30 are
18um。
Further, on first rolled copper foil 20 and second rolled copper foil 30 silver coated 41, layer gold or
Solder mask.Make in this way, silver layer 41, layer gold or solder mask can play the first rolled copper foil 20 and the second rolled copper foil 30 protection
With the service life of FPC plates can be extended.In addition, the draftability of the FPC plates of silver coated 41, layer gold, flexure bending performance are still
Preferably.
Further, first rolled copper foil 20 is line layer 21, and being pressed on first rolled copper foil 20 has TPU layer
42 or cover layer；Second rolled copper foil 30 is pad 32 and/or golden finger, and silver is coated with second rolled copper foil 30
Layer 41 or layer gold.In this way, TPU layer 42, cover layer can play a protective role line layer 21, the service life of FPC plates can be extended.
Silver layer 41, layer gold can play a protective role pad 32 and/or golden finger.In addition, TPU's is of low cost, lead on line layer 21
Pressing TPU layer 42 is crossed to replace silver layer 41 or layer gold, the manufacture cost of FPC plates can be reduced.
Further, first rolled copper foil 20, second rolled copper foil 30 are line layer (21,31) and pad
(22,32) and/or golden finger, on the line layer (21,31) pressing have TPU layer 42；The pad (22,32) and/or golden hand
Silver coated 41 or layer gold on finger.
Further, 20 and/or second rolled copper foil 30 of the first rolled copper foil is line layer (21,31), the line
Conducting wire in road floor (21,31) is in wavy.In this way, when FPC plate stretchings or bending, wavy conducting wire be not easy to by pulling force and
Fracture.
A kind of production method of FPC plates, includes the following steps：
Step 100, prepare elastic base plate 10 and two pieces of rolled copper foils 70；
The elastic base plate 10, be placed between two pieces of rolled copper foils 70 by step 200；
Step 300, carry out pressing by the rolled copper foil 70, the elastic base plate 10 and handle to obtain copper-clad plate；
Specifically, it see Fig. 2, there is provided two pieces of backing plates, 60, two pieces of release films 50, by one of backing plate 60, wherein one
Block release film 50 is placed in one the side of a rolled copper foil 70, another backing plate 60, another piece of release film 50 is placed in another
The side of a rolled copper foil 70, comes assisted compression rolled copper foil 70 and elastic base plate 10 by backing plate 60, release film 50.More specifically
Elastic base plate 10 before pressing processing is carried out, is fixed on by ground, rolled copper foil 70 with elastic base plate 10 using several rivets
On backing plate 60, effect is preferably pressed between rolled copper foil 70 and elastic base plate 10 so as to can guarantee that.
Step 400, by the two sides of the copper-clad plate produce figure respectively.
Specifically, after copper-clad plate sidepiece carries out pattern transfer, the sidepiece of copper-clad plate can be fixed on frame, by side
Frame enters in production line with copper-clad plate etches line pattern.
The production method of above-mentioned FPC plates, it is identical with the beneficial effect of FPC plates, herein without repeating.
TPU plates are laminated to obtain FPC under different pressing-in temps from rolled copper foil 70 with different pressing times
Plate, the combination effect and the relation of pressing-in temp, pressing time of FPC plates are as shown in the table：
| Pressing-in temp (DEG C) | Pressing time (S) | The combination effect of FPC plates |
| 100 | 300 | Generally |
| 130 | 300 | Generally |
| 160 | 300 | Generally |
| 190 | 300 | It is good |
| 220 | 300 | It is good |
| 100 | 400 | It is good |
| 130 | 400 | It is good |
| 160 | 400 | It is excellent |
| 190 | 400 | It is good |
| 220 | 400 | It is good |
| 100 | 500 | It is good |
| 130 | 500 | It is good |
| 160 | 500 | Generally |
| 190 | 500 | Generally |
| 220 | 500 | Generally |
In the present embodiment, further, the elastic base plate 10 is TPU plates, the rolled copper foil 70 and the TPU plates into
The pressing-in temp of row pressing is 130 DEG C~190 DEG C, and pressing time is 300S~500S.In this way, can guarantee that rolled copper foil 70 with
Good combination effect between TPU plates.Specifically, the pressing-in temp that the rolled copper foil 70 is pressed with the TPU plates is
160 DEG C, pressing time 400S.
Each technical characteristic of embodiment described above can be combined arbitrarily, to make description succinct, not to above-mentioned reality
Apply all possible combination of each technical characteristic in example to be all described, as long as however, the combination of these technical characteristics is not deposited
In contradiction, the scope that this specification is recorded all is considered to be.
Embodiment described above only expresses the several embodiments of the present invention, its description is more specific and detailed, but simultaneously
Cannot therefore it be construed as limiting the scope of the patent.It should be pointed out that come for those of ordinary skill in the art
Say, without departing from the inventive concept of the premise, various modifications and improvements can be made, these belong to the protection of the present invention
Scope.Therefore, the protection domain of patent of the present invention should be determined by the appended claims.
Claims (10)
- A kind of 1. stretchable FPC plates, it is characterised in that including：Elastic base plate, the first rolled copper foil and the second rolled copper foil, First rolled copper foil is sticked to be sticked in the elasticity in the wherein one side of the elastic base plate, second rolled copper foil The another side of substrate.
- 2. stretchable FPC plates according to claim 1, it is characterised in that the elastic base plate is TPU plates.
- 3. stretchable FPC plates according to claim 2, it is characterised in that first rolled copper foil, second pressure It is tensile strength in 350N/mm to prolong copper foil2~450N/mm2And rolled copper foil of the elongation more than 20%.
- 4. stretchable FPC plates according to claim 1, it is characterised in that first rolled copper foil, second pressure The thickness for prolonging copper foil is 14um~22um.
- 5. stretchable FPC plates according to claim 1, it is characterised in that first rolled copper foil and described second Silver coated on rolled copper foil, layer gold or solder mask.
- 6. stretchable FPC plates according to claim 1, it is characterised in that first rolled copper foil is line layer, institute Stating pressing on the first rolled copper foil has TPU layer or cover layer；Second rolled copper foil is pad and/or golden finger, described Silver coated or layer gold on two rolled copper foils.
- 7. the stretchable FPC plates according to claim 1, it is characterised in that first rolled copper foil, described second Rolled copper foil is line layer and pad and/or golden finger, and being pressed on the line layer has TPU layer；The pad and/or golden hand Silver coated or layer gold on finger.
- 8. the stretchable FPC plates according to claim 1 to 7 any one, it is characterised in that first rolled copper foil And/or second rolled copper foil be line layer, the conducting wire in the line layer is in wavy.
- 9. a kind of production method of FPC plates, it is characterised in that include the following steps：Prepare elastic base plate and two pieces of rolled copper foils；The elastic base plate is placed between two pieces of rolled copper foils；The rolled copper foil, the elastic base plate are carried out pressing to handle to obtain copper-clad plate；Figure is produced on the two sides of the copper-clad plate respectively.
- 10. the production method of FPC plates according to claim 9, it is characterised in that the elastic base plate is TPU plates, described The pressing-in temp that rolled copper foil is pressed with the TPU plates is 130 DEG C~190 DEG C, and pressing time is 300S~500S.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711276943.7A CN108012406A (en) | 2017-12-06 | 2017-12-06 | Stretchable FPC plates and preparation method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711276943.7A CN108012406A (en) | 2017-12-06 | 2017-12-06 | Stretchable FPC plates and preparation method thereof |
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| Publication Number | Publication Date |
|---|---|
| CN108012406A true CN108012406A (en) | 2018-05-08 |
Family
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201711276943.7A Pending CN108012406A (en) | 2017-12-06 | 2017-12-06 | Stretchable FPC plates and preparation method thereof |
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| Country | Link |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2020123632A (en) * | 2019-01-29 | 2020-08-13 | Dic株式会社 | Flexible wiring board |
| CN111899916A (en) * | 2020-08-04 | 2020-11-06 | 淮南师范学院 | Performance-variable electrode and preparation method thereof |
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| JPH02231790A (en) * | 1989-03-03 | 1990-09-13 | Sumitomo Electric Ind Ltd | Flexible printed wiring board |
| JPH11204898A (en) * | 1998-01-07 | 1999-07-30 | Nec Niigata Ltd | Double-side flexible wiring board |
| WO2001063990A1 (en) * | 2000-02-28 | 2001-08-30 | Zeon Corporation | Composite material and method of manufacturing multilayer circuit board |
| US20060157271A1 (en) * | 2005-01-17 | 2006-07-20 | J. S. T. Mfg. Co., Ltd. | Double-sided flexible printed circuits |
| JP2011233822A (en) * | 2010-04-30 | 2011-11-17 | Nippon Mektron Ltd | Flexible circuit board |
| CN102687598A (en) * | 2009-12-24 | 2012-09-19 | 日本梅克特隆株式会社 | Flexible circuit board and manufacturing method thereof |
| CN102870504A (en) * | 2010-04-19 | 2013-01-09 | 日本梅克特隆株式会社 | Flexible circuit board and production method therefor |
| JP2013187380A (en) * | 2012-03-08 | 2013-09-19 | Nippon Mektron Ltd | Elastic flexible circuit board and manufacturing method of the same |
| JP2015228533A (en) * | 2015-09-24 | 2015-12-17 | 日本メクトロン株式会社 | Method for manufacturing flexible circuit body |
| CN207589269U (en) * | 2017-12-06 | 2018-07-06 | 广州兴森快捷电路科技有限公司 | Stretchable FPC plates |
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2017
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6456841A (en) * | 1987-08-27 | 1989-03-03 | Nippon Mining Co | Copper alloy foil for flexible circuit board |
| JPH02231790A (en) * | 1989-03-03 | 1990-09-13 | Sumitomo Electric Ind Ltd | Flexible printed wiring board |
| JPH11204898A (en) * | 1998-01-07 | 1999-07-30 | Nec Niigata Ltd | Double-side flexible wiring board |
| WO2001063990A1 (en) * | 2000-02-28 | 2001-08-30 | Zeon Corporation | Composite material and method of manufacturing multilayer circuit board |
| US20060157271A1 (en) * | 2005-01-17 | 2006-07-20 | J. S. T. Mfg. Co., Ltd. | Double-sided flexible printed circuits |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2020123632A (en) * | 2019-01-29 | 2020-08-13 | Dic株式会社 | Flexible wiring board |
| CN111899916A (en) * | 2020-08-04 | 2020-11-06 | 淮南师范学院 | Performance-variable electrode and preparation method thereof |
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