CN102686027A - Flexible circuit board and manufacturing method thereof - Google Patents

Flexible circuit board and manufacturing method thereof Download PDF

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Publication number
CN102686027A
CN102686027A CN2012101329074A CN201210132907A CN102686027A CN 102686027 A CN102686027 A CN 102686027A CN 2012101329074 A CN2012101329074 A CN 2012101329074A CN 201210132907 A CN201210132907 A CN 201210132907A CN 102686027 A CN102686027 A CN 102686027A
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China
Prior art keywords
unit
flexible pcb
flexible
pcbs
circuit board
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CN2012101329074A
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Chinese (zh)
Inventor
路宣华
孙睿
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Huawei Device Co Ltd
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Huawei Device Co Ltd
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Priority to CN2012101329074A priority Critical patent/CN102686027A/en
Publication of CN102686027A publication Critical patent/CN102686027A/en
Pending legal-status Critical Current

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Abstract

The embodiment of the invention provides a flexible circuit board and a manufacturing method thereof, and relates to the technical field of flexible circuit boards. The flexible circuit board comprises a plurality of flexible circuit board units which area connected to form the flexible circuit board. Each flexible circuit board unit comprises an insulating substrate and a circuit wire on the insulating substrate. The circuit wire of at least one of the flexible circuit board units is connected with an electronic device. The manufacturing method for the flexible circuit board comprises the following steps of: forming the flexible circuit board units; and connecting the flexible circuit board units to form the flexible circuit board. By the flexible circuit board, the board utilization rate of the flexible circuit board can be increased.

Description

Flexible PCB and manufacturing approach thereof
Technical field
The present invention relates to the circuit board technology field, relate in particular to a kind of flexible PCB and manufacturing approach thereof.
Background technology
Flexible PCB is the printed circuit board (PCB) of processing with flexible insulating substrate; Can free bend, coiling, folding; Can according to space layout and require to arrange arbitrarily, and mobile arbitrarily and flexible at three dimensions, thus reach integrated that the components and parts assembling is connected with lead.
Owing to flexible PCB designs, makes for special applications, so the common more complicated of its contour structures and irregular, in manufacture process, the utilance of sheet material is lower.
Summary of the invention
Technical problem to be solved by this invention is to provide a kind of flexible PCB and manufacturing approach thereof, improves the sheet material utilance of flexible PCB.
For solving the problems of the technologies described above, embodiments of the invention adopt following technical scheme:
A kind of flexible PCB comprises:
A plurality of flexible PCBs unit, said a plurality of flexible PCBs unit connects and composes said flexible PCB;
Said flexible PCB unit comprises insulating substrate and is arranged on the circuit trace on the said insulating substrate in said a plurality of flexible PCBs unit, to have at least the circuit trace of a flexible PCB unit to be connected with electronic device.
A kind of manufacturing approach of flexible PCB comprises:
Form a plurality of flexible PCBs unit;
Connect said a plurality of flexible PCBs unit, constitute said flexible PCB;
Said flexible PCB unit comprises insulating substrate and is arranged on the circuit trace on the said insulating substrate in said a plurality of flexible PCBs unit, to have at least the circuit trace of a flexible PCB unit to be connected with electronic device.
The flexible PCB that the embodiment of the invention provides connects into complete flexible PCB through a plurality of flexible PCBs unit, makes that the allomeric function of flexible PCB is accomplished.Because a plurality of flexible PCBs unit wants high a lot of with respect to the layout utilance of complex-shaped flexible circuit slab integral in actual production process; Therefore; Make the flexible PCB unit earlier; Again the flexible PCB unit is connected and composed the flexible circuit slab integral, can improve the layout utilance in the flexible PCB production process greatly, reduce production costs.
Description of drawings
In order to be illustrated more clearly in the embodiment of the invention or technical scheme of the prior art; To do to introduce simply to the accompanying drawing of required use in embodiment or the description of the Prior Art below; Obviously, the accompanying drawing in describing below only is some embodiments of the present invention, for those of ordinary skills; Under the prerequisite of not paying creative work property, can also obtain other accompanying drawing according to these accompanying drawings.
The sketch map of the flexible PCB that Fig. 1 provides for the embodiment of the invention;
The sketch map of another flexible PCB that Fig. 2 provides for the embodiment of the invention;
The sketch map of a flexible PCB again that Fig. 3 provides for the embodiment of the invention;
The connection sketch map of the flexible PCB unit that Fig. 4 provides for Fig. 3;
The manufacturing approach flow chart of the flexible PCB that Fig. 5 provides for the embodiment of the invention.
Embodiment
To combine the accompanying drawing in the embodiment of the invention below, the technical scheme in the embodiment of the invention is carried out clear, intactly description, obviously, described embodiment only is the present invention's part embodiment, rather than whole embodiment.Based on the embodiment among the present invention, those of ordinary skills are not making the every other embodiment that is obtained under the creative work prerequisite, all belong to the scope of the present invention's protection.
The embodiment of the invention provides a kind of flexible PCB, and is as shown in Figure 1, and this flexible PCB 1 comprises:
Two flexible PCB unit 2, said two flexible PCB unit 2 connect and compose said flexible PCB 1.Though it will be understood by those skilled in the art that among Fig. 1, the quantity of flexible PCB unit 2 is two, and this is exemplary introduction, does not constitute the qualification to it.Said two flexible PCB unit 2 comprise insulating substrate; Said insulating substrate is provided with circuit trace (not shown); In said two flexible PCB unit 2; Have at least on the circuit trace of a flexible PCB unit 2 to be connected with electronic device (not shown), make that the allomeric function of flexible PCB is accomplished.If with existing mode, integral manufacturing flexible PCB 1 will need the larger area raw material, make two flexible PCB unit 2 ways of connecting more earlier and adopt, and then not need the larger area raw material.Further, said flexible PCB unit 2 is the quadrangle of regular shape.
Above Fig. 1 only is exemplary; And the shape of flexible PCB is very complicated usually; Concrete shape according to flexible PCB; Can improve raw-material utilance is that principle is divided into a plurality of flexible PCBs unit, and the shape of each flexible PCB unit will be more more regular with respect to the shape of whole flexible PCB.As shown in Figure 2; Flexible PCB 1 is made up of the first flexible PCB unit 11 and the second flexible PCB unit 12; Flexible PCB 1 complex-shaped; If on the raw material of making flexible PCB, directly form flexible PCB 1 in process of production, will waste wide variety of materials, the material of promptly scheming the empty zone can't be utilized.If can improve raw-material utilance is principle; Flexible PCB 1 is divided into the first flexible PCB unit 11 and the second comparatively regular flexible PCB unit 12 of shape; Both are produced; Again both are connected to form flexible PCB 1, the problem of above-mentioned waste material will be solved accordingly, with respect to the mode of direct formation flexible PCB; Use the raw material of identical size, formation flexible PCB unit carries out ways of connecting to it again and can make more flexible PCB.Therefore, make the flexible PCB unit earlier, again the flexible PCB unit is connected and composed the flexible circuit slab integral, can improve the layout utilance in the flexible PCB production process greatly, reduce production costs.
Optional, in embodiments of the present invention, in said a plurality of flexible PCBs unit, the flexible PCB unit that to have a flexible PCB unit at least be regular shape is such as quadrangle or triangle etc.Complex-shaped flexible PCB is divided into; Flexible PCB unit such as quadrangle or triangle; The layout utilance of the flexible PCB unit of quadrangle or triangle is higher, can further improve the layout utilance of flexible PCB, reduces production costs.
Further; In embodiments of the present invention; As shown in Figure 3, the circuit board number of plies of said flexible PCB unit and/or structure and its function are complementary, and the structure of flexible PCB unit promptly refers to the single-sided structure or the bilateral structure of flexible PCB; The more flexible PCB unit 3 of function is individual layer bilateral structure or sandwich construction; And the simple flexible PCB of function unit 4 adopts individual layer single face or individual layer bilateral structure, in said a plurality of flexible PCBs unit, has at least the circuit board number of plies of two flexible PCB unit and/or structure different; Function complicacy in the flexible circuit slab integral is divided into different flexible PCB unit with the simple zone of function; With Fig. 3 is example, and the required circuit board number of plies or the structure in the more flexible PCB unit 3 of function and the simple flexible PCB of function unit 4 is different, and perhaps the circuit board number of plies and structure are all inequality; Respectively the more flexible PCB unit 3 of function is produced with the simple flexible PCB of function unit 4, be connected to form the overall structure of flexible PCB 1 then.With respect to flexible circuit slab integral of the prior art; The embodiment of the invention is divided into different flexible PCB unit according to the required circuit board number of plies of zones of different in the flexible PCB or the difference of structure; The simple flexible PCB element circuit of function flaggy number is few, simple in structure, has further improved the utilance of the layout of flexible PCB.
Optional, in embodiments of the present invention, in said a plurality of flexible PCBs unit; Each said flexible PCB unit is provided with the connection pads (pad) that is used to connect other said flexible PCB unit; Said circuit trace on the flexible PCB unit at the said connection pads on each flexible PCB unit and said connection pads place is connected, leaves the port of the circuit trace that is attached thereto like this on each said connection pads, when a plurality of flexible PCBs of connection unit; Connection pads to each flexible PCB unit connects; Can fix said flexible PCB unit on the one hand, also the port of the feasible connection pads that connects interconnects, and then makes the cabling of a plurality of flexible PCBs unit be communicated with; Thereby can make signal communication, form flexible PCB.Optional, in embodiments of the present invention, said a plurality of flexible PCBs unit connects and composes said flexible PCB and comprises:
Said a plurality of flexible PCBs unit connects, or is welded to connect through anisotropy conductiving glue connection, anisotropic conductive film.In embodiments of the present invention, can connect through interconnect scheme between other ripe flexible PCB plates, concrete connected mode is not done qualification here yet.
For example; In embodiments of the present invention; As shown in Figure 4, on the more flexible PCB unit 3 of function, join domain 5 is arranged, join domain 5 is provided with anisotropic conductive film or anisotropic conductive film; One end of the simple flexible PCB of function unit 4 is arranged on anisotropic conductive film or the anisotropic conductive film, realizes the connection of two flexible PCB unit.It is understandable that; Not shown connection pads on the accompanying drawing, the more flexible PCB unit 3 of function and the simple flexible PCB of function unit 4 at join domain 5 through connection pads and utilize anisotropic conductive film or anisotropic conductive film is connected.
The flexible PCB that the embodiment of the invention provides is spliced into complete complex-shaped flexible PCB through a plurality of flexible PCBs unit, makes that the allomeric function of flexible PCB is accomplished.Because a plurality of flexible PCBs unit wants high a lot of with respect to the layout utilance of complex-shaped flexible circuit slab integral in actual production process; Therefore; Make the flexible PCB unit earlier; Again the flexible PCB unit is connected and composed the flexible circuit slab integral, can improve the layout utilance in the flexible PCB production process greatly, reduce production costs.Simultaneously; With respect to flexible circuit slab integral of the prior art; The embodiment of the invention is divided into different flexible PCB unit according to the required circuit board number of plies of zones of different in the flexible PCB or the difference of structure; The simple flexible PCB element circuit of function flaggy number is few, simple in structure, has further improved the utilance of the layout of flexible PCB.
The embodiment of the invention also provides a kind of manufacturing approach of flexible PCB, and is as shown in Figure 5, and this method comprises:
101, form a plurality of flexible PCBs unit;
102, connect said a plurality of flexible PCBs unit, constitute said flexible PCB.
Said flexible PCB unit comprises insulating substrate and is arranged on the circuit trace on the said insulating substrate in said a plurality of flexible PCBs unit, to have at least the circuit trace of a flexible PCB unit to be connected with electronic device.
Because the shape of flexible PCB is very complicated usually; Concrete shape according to flexible PCB; Can improve raw-material utilance is that principle is divided into a plurality of flexible PCBs unit, and the shape of each flexible PCB unit will be more more regular with respect to the shape of whole flexible PCB.Because the shape comparatively flexible PCB unit of rule wants high a lot of with respect to the layout utilance of complex-shaped flexible circuit slab integral in actual production process; Therefore; Make the flexible PCB unit earlier; Again the flexible PCB unit is connected and composed the flexible circuit slab integral, can improve the layout utilance in the flexible PCB production process greatly, reduce production costs.
Optional, in embodiments of the present invention, in said a plurality of flexible PCBs unit, comprise the flexible PCB unit of regular shape, be quadrangle or triangle such as having a flexible PCB unit at least.Complex-shaped flexible PCB is divided into; Flexible PCB unit such as quadrangle or triangle; The layout utilance of the flexible PCB unit of quadrangle or triangle is higher, can further improve the layout utilance of flexible PCB, reduces production costs.
Further, in embodiments of the present invention, step 101, a plurality of flexible PCBs of formation unit also comprise:
Form the different said flexible PCB unit of at least two circuit board numbers of plies and/or structure, wherein, the circuit board number of plies of said flexible PCB unit and/or structure and its function are complementary.Respectively function more flexible PCB unit and the simple flexible PCB of function unit are produced, be connected to form the overall structure of flexible PCB then.With respect to formation flexible circuit slab integral of the prior art; The embodiment of the invention is divided into different flexible PCB unit according to the required circuit board number of plies of zones of different in the flexible PCB or the difference of structure; And produce respectively and accomplish; The simple flexible PCB element circuit of function flaggy number is few, simple in structure, has further improved the utilance of the layout of flexible PCB.
Optional; In embodiments of the present invention; The a plurality of flexible PCBs of said formation unit comprises: on each said flexible PCB unit, connection pads is set; Each said connection pads is connected with the said circuit trace of the flexible PCB unit at said connection pads place, and said a plurality of flexible PCBs unit connects and composes said flexible PCB and comprises that the said connection pads through connecting on a plurality of flexible PCBs unit constitutes said flexible PCB.
Further, in embodiments of the present invention, the said a plurality of flexible PCBs of said connection unit constitutes said flexible PCB and comprises:
Connect, or be welded to connect said a plurality of flexible PCBs unit through anisotropy conductiving glue connection, anisotropic conductive film.In embodiments of the present invention, can connect through interconnect scheme between other ripe flexible PCB plates, concrete connected mode is not done qualification here yet.
The manufacturing approach of the flexible PCB that the embodiment of the invention provides is spliced into complete complex-shaped flexible PCB through a plurality of flexible PCBs unit, makes that the allomeric function of flexible PCB is accomplished.Because a plurality of flexible PCBs unit wants high a lot of with respect to the layout utilance of complex-shaped flexible circuit slab integral in actual production process; Therefore; Make the flexible PCB unit earlier; Again the flexible PCB unit is connected and composed the flexible circuit slab integral, can improve the layout utilance in the flexible PCB production process greatly, reduce production costs.Simultaneously; With respect to flexible circuit slab integral of the prior art; The embodiment of the invention is divided into different flexible PCB unit according to the required circuit board number of plies of zones of different in the flexible PCB or the difference of structure; The simple flexible PCB element circuit of function flaggy number is few, simple in structure, has further improved the utilance of the layout of flexible PCB.
The above; Be merely embodiment of the present invention, but protection scope of the present invention is not limited thereto, any technical staff who is familiar with the present technique field is in the technical scope that the present invention discloses; Can expect easily changing or replacement, all should be encompassed within protection scope of the present invention.Therefore, protection scope of the present invention should be as the criterion with the protection range of said claim.

Claims (12)

1. a flexible PCB is characterized in that, comprising:
A plurality of flexible PCBs unit, said a plurality of flexible PCBs unit connects and composes said flexible PCB; Said flexible PCB unit comprises insulating substrate and is arranged on the circuit trace on the said insulating substrate in said a plurality of flexible PCBs unit, to have at least the circuit trace of a flexible PCB unit to be connected with electronic device.
2. flexible PCB according to claim 1; It is characterized in that; In said a plurality of flexible PCBs unit; Have at least the circuit board number of plies and/or the structure of two flexible PCB unit different, wherein, the circuit board number of plies of said flexible PCB unit and/or structure and its function are complementary.
3. flexible PCB according to claim 1 and 2; It is characterized in that; In said a plurality of flexible PCBs unit; Each said flexible PCB unit is provided with connection pads, and each said connection pads is connected with the said circuit trace of the flexible PCB unit at said connection pads place, and said a plurality of flexible PCBs unit connects and composes said flexible PCB and comprises that the said connection pads through connecting on said a plurality of flexible PCBs unit constitutes said flexible PCB.
4. according to each described flexible PCB of claim 1-3, it is characterized in that said a plurality of flexible PCBs unit connects and composes said flexible PCB and comprises:
Said a plurality of flexible PCBs unit connects through anisotropy conductiving glue connection, anisotropic conductive film, or is welded to connect the said flexible PCB of formation.
5. according to each described flexible PCB of claim 1-4, it is characterized in that said a plurality of flexible PCBs unit comprises the flexible PCB unit of regular shape.
6. flexible PCB according to claim 5 is characterized in that, in said a plurality of flexible PCBs unit, having a flexible PCB unit at least is quadrangle or triangle.
7. the manufacturing approach of a flexible PCB is characterized in that, comprising:
Form a plurality of flexible PCBs unit;
Connect said a plurality of flexible PCBs unit, constitute said flexible PCB;
Said flexible PCB unit comprises insulating substrate and is arranged on the circuit trace on the said insulating substrate in said a plurality of flexible PCBs unit, to have at least the circuit trace of a flexible PCB unit to be connected with electronic device.
8. manufacturing approach according to claim 7 is characterized in that, a plurality of flexible PCBs of said formation unit also comprises:
Form the different said flexible PCB unit of at least two circuit board numbers of plies and/or structure, wherein, the circuit board number of plies of said flexible PCB unit and/or structure and its function are complementary.
9. according to claim 7 or 8 described flexible PCBs, it is characterized in that a plurality of flexible PCBs of said formation unit also comprises:
On each said flexible PCB unit, connection pads is set; Each said connection pads is connected with the said circuit trace of the flexible PCB unit at said connection pads place, and said a plurality of flexible PCBs unit connects and composes said flexible PCB and comprises that the said connection pads through connecting on a plurality of flexible PCBs unit constitutes said flexible PCB.
10. according to each described manufacturing approach of claim 7-9, it is characterized in that the said a plurality of flexible PCBs of said connection unit constitutes said flexible PCB and comprises:
Through anisotropy conductiving glue connect, anisotropic conductive film connects, or be welded to connect said a plurality of flexible PCBs unit and constitute said flexible PCB.
11., it is characterized in that a plurality of flexible PCBs of said formation unit also comprises according to each described manufacturing approach of claim 7-10:
Formation comprises the flexible PCB unit of regular shape.
12. manufacturing approach according to claim 11 is characterized in that, being formed up to a rare flexible PCB unit is quadrangle or triangle.
CN2012101329074A 2012-04-28 2012-04-28 Flexible circuit board and manufacturing method thereof Pending CN102686027A (en)

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Application Number Priority Date Filing Date Title
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Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103687295A (en) * 2013-12-03 2014-03-26 广州杰赛科技股份有限公司 Large flexible printed circuit board produced by butt jointing process
CN107071667A (en) * 2017-05-17 2017-08-18 广东欧珀移动通信有限公司 loudspeaker assembly and mobile terminal
WO2017185340A1 (en) * 2016-04-29 2017-11-02 华为技术有限公司 Mobile terminal
CN108012458A (en) * 2017-12-12 2018-05-08 东莞市奕东电子有限公司 A kind of flexible circuit bridge process
CN112702122A (en) * 2020-12-12 2021-04-23 盐城华昱光电技术有限公司 Flexible circuit board and optical module with same

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN1254252A (en) * 1998-11-12 2000-05-24 明碁电脑股份有限公司 Series-connected circuit board and its manufacture method
JP2008108758A (en) * 2006-10-23 2008-05-08 Funai Electric Co Ltd Flexible substrate
JP2010226006A (en) * 2009-03-25 2010-10-07 Casio Computer Co Ltd Method of manufacturing flexible circuit sheet junction
CN1984528B (en) * 2005-12-15 2010-12-29 日东电工株式会社 Flexible wired circuit board

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN1254252A (en) * 1998-11-12 2000-05-24 明碁电脑股份有限公司 Series-connected circuit board and its manufacture method
CN1984528B (en) * 2005-12-15 2010-12-29 日东电工株式会社 Flexible wired circuit board
JP2008108758A (en) * 2006-10-23 2008-05-08 Funai Electric Co Ltd Flexible substrate
JP2010226006A (en) * 2009-03-25 2010-10-07 Casio Computer Co Ltd Method of manufacturing flexible circuit sheet junction

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103687295A (en) * 2013-12-03 2014-03-26 广州杰赛科技股份有限公司 Large flexible printed circuit board produced by butt jointing process
WO2017185340A1 (en) * 2016-04-29 2017-11-02 华为技术有限公司 Mobile terminal
CN108605408A (en) * 2016-04-29 2018-09-28 华为技术有限公司 Mobile terminal
CN107071667A (en) * 2017-05-17 2017-08-18 广东欧珀移动通信有限公司 loudspeaker assembly and mobile terminal
CN108012458A (en) * 2017-12-12 2018-05-08 东莞市奕东电子有限公司 A kind of flexible circuit bridge process
CN112702122A (en) * 2020-12-12 2021-04-23 盐城华昱光电技术有限公司 Flexible circuit board and optical module with same
CN112702122B (en) * 2020-12-12 2022-09-02 中天通信技术有限公司 Flexible circuit board and optical module with same

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Application publication date: 20120919