CN101945538A - Flexible circuit board, and mechanism and method for connecting flexible circuit board and printed circuit board - Google Patents
Flexible circuit board, and mechanism and method for connecting flexible circuit board and printed circuit board Download PDFInfo
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- CN101945538A CN101945538A CN201010290477XA CN201010290477A CN101945538A CN 101945538 A CN101945538 A CN 101945538A CN 201010290477X A CN201010290477X A CN 201010290477XA CN 201010290477 A CN201010290477 A CN 201010290477A CN 101945538 A CN101945538 A CN 101945538A
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Abstract
The invention provides a flexible circuit board and a mechanism and a method for connecting the flexible circuit board and a printed circuit board, and belongs to the technical field of machinery. One end of the flexible circuit board is bent to form a U-shaped bending part, and a bonding pad is arranged on the surface of the U-shaped bending part. Therefore, the bending part is adhered to the printed circuit board, and the bonding pad on the surface of the U-shaped bending part and a bonding pad on the surface of the printed circuit board are opposite and welded. The invention can improve the connecting reliability, and can effectively solve the problems of low yield and low reliability for manually welding a low-cost single-sided FPC. Meanwhile, the welding spots of the connecting structure can be clearly seen, and the welding defect can be discovered through appearance inspection. Therefore, the mode has high reliability.
Description
Technical field
The present invention relates to field of mechanical technique, the manufacture method of particularly a kind of flexible PCB, flexible PCB and printed circuit board (PCB) bindiny mechanism and flexible PCB.
Background technology
Along with development of electronic technology, the volume of portable terminal is more and more littler of to satisfy the requirement of mobility, portability.Simultaneously, because the increase of product diversification and complexity causes the FPC (Flexible Printed Circuit, flexible printed circuit) in the portable terminal also varied with the interconnection mode of PCB (Printed Circuit Board, printed circuit board).
The connected mode of existing FPC and PCB can be as shown in Figure 1, is provided with PCB pad 101 on pcb board 100, is provided with FPC pad 201 on FPC200.With FPC pad 201 with the corresponding setting in PCB pad 101 positions so that both contact.By thermal head 300, the mode of FPC pad 201 by Hotbar (thermocompression bonding) is welded on the PCB pad 101 then.
In realizing process of the present invention, the inventor finds that there is following problem at least in prior art:
This connected mode is subjected to the influence of process control, the difficult control of tin amount.
Simultaneously because PCB pad and FPC pad all are to adopt a plurality of strip metal lines that are arranged side by side in the prior art, if the tin amount is many during welding, can cause tin excessive cause two or etc. caused short circuit by the tin conducting between a plurality of metal wires that are arranged side by side.And PCB pad in this structure and FPC pad are invisible, so visual inspection is difficult for finding short circuit or welding bad problem.Therefore this mode poor reliability, fault are more, use and are limited to.
Summary of the invention
In order to solve FPC and the unreasonable problem that causes poor reliability of PCB syndeton in the prior art, the embodiment of the invention provides the manufacture method of a kind of flexible PCB, flexible PCB and printed circuit board (PCB) bindiny mechanism and flexible PCB.Described technical scheme is as follows:
The embodiment of the invention has proposed a kind of flexible PCB, comprises flexible PCB first body and bending head; Described bending head and described flexible PCB first body are set up in parallel and form kink; Described kink surface is provided with pad.
The embodiment of the invention has also proposed a kind of manufacture method of flexible PCB, comprising:
Make between flexible PCB first body and the bending head and form kink, and described kink surface forms pad.
The embodiment of the invention has also proposed a kind of flexible PCB and printed circuit board (PCB) bindiny mechanism, comprising: flexible PCB and printed circuit board (PCB); Described printed circuit board surface is provided with second pad; Described flexible PCB comprises flexible PCB first body and bending head; Described bending head and described flexible PCB first body are set up in parallel and form kink; Described kink surface is provided with first pad; Described bending head and described printed circuit board surface recline, and make described second pad corresponding with first pad locations and weld together.
The embodiment of the invention has also proposed the method for attachment of a kind of flexible PCB and printed circuit board (PCB), it is characterized in that, comprising:
Make between flexible PCB first body and the bending head and form kink, and described kink surface forms pad;
The bending head and the described printed circuit board surface of described flexible PCB are reclined, so that the pad on described kink surface is corresponding with the pad locations of described printed circuit board surface;
The pad on described kink surface and the pad of described printed circuit board surface are welded together.
The beneficial effect of the technical scheme that the embodiment of the invention provides is: the embodiment of the invention provides a kind of flexible PCB, flexible PCB and printed circuit board (PCB) bindiny mechanism, manufacture method.The embodiment of the invention with formation U-shaped kink, and makes pad be arranged on U-shaped kink surface by with the bending of flexible PCB one end.So just this kink and printed circuit board (PCB) can be reclined, and make pad and the welding corresponding on U-shaped kink surface with the pad locations of printed circuit board surface.The embodiment of the invention can improve the reliability of connection, can effectively solve the problem that single face FPC manual welding yield is low, reliability is low for FPC cheaply.Simultaneously, the solder joint of this syndeton can be known and see, can find the defective of welding by visual inspection.So this mode good reliability.
Description of drawings
In order to be illustrated more clearly in the technical scheme of the embodiment of the invention, to do one to the accompanying drawing that uses among the embodiment below introduces simply, apparently, below listed accompanying drawing only be some embodiments of the present invention, for those of ordinary skills, under the prerequisite of not paying creative work, can also obtain other accompanying drawing according to these accompanying drawings.
Fig. 1 is the structural representation of FPC of the prior art and PCB syndeton;
Fig. 2 is the flexible PCB structural representation of first embodiment of the invention;
Fig. 3 is the flexible PCB structural representation of second embodiment of the invention;
Fig. 4 is the polycrystalline substance schematic diagram of the flexible PCB of Fig. 3;
Fig. 5 is the flexible PCB of fifth embodiment of the invention and the structural representation of printed circuit board (PCB) bindiny mechanism;
Fig. 6 is the flow chart of seventh embodiment of the invention;
Schematic diagram when Fig. 7 bends out the U-shaped kink for flexible PCB;
Embodiment
For making the purpose, technical solutions and advantages of the present invention clearer, embodiment of the present invention is described further in detail below in conjunction with accompanying drawing.
Embodiment 1
The embodiment of the invention has proposed a kind of flexible PCB, and its structure comprises flexible PCB first body 11 and bending head 12 as shown in Figure 2; Described bending head 12 is set up in parallel and forms kink 13 with described flexible PCB first body 11; Described kink 13 surfaces are provided with pad 14.
The embodiment of the invention has proposed a kind of flexible PCB, the kink of formation, and pad is set on the kink surface.The single face FPC of the prior art that compares like this compares, and can be welded on the pad on PCB surface by manual welding or other welding manners pad with FPC.When welding, can very simply the pad on kink surface and the pad on PCB surface be welded together, to reduce the difficulty of welding, reduce cost.Simultaneously, the FPC of this structure can make after the welding the solder joint naked eyes as seen, can detect find the defective of welding by outward appearance, to improve welding reliability.
Embodiment 2
Second embodiment of the invention has proposed a kind of flexible PCB, and its structure comprises flexible PCB first body 11 and bending head 12 as shown in Figure 3 and Figure 4; Described bending head 12 is set up in parallel and forms kink 13 with described flexible PCB first body 11; Described U-shaped kink 13 surfaces are provided with pad 14.
Bending head can be that the end to described flexible PCB bends and forms.
Wherein, this kink 13 is U-shapeds.Certainly, this is that of the embodiment of the invention illustrates, what kink can also be for other shapes, V-arrangement for example, the embodiment of the invention is not as limit.
As shown in Figure 3, this pad 14 can extend a preset distance along the surface of bending head 12, can increase the contact area of the pad on pad 14 and PCB surface like this, to improve welding reliability.
As shown in Figure 4, this pad 14 can extend a preset distance along described flexible PCB first body 11 surfaces, can increase the contact area of the pad on pad 14 and PCB surface like this, to improve welding reliability.
Wherein, first body 11 of this flexible PCB and bending head 12 can be formed in one, and be promptly when making described flexible PCB, one-body molded as Fig. 2 or Fig. 3 or structure shown in Figure 4, to form flexible PCB first body and bending head and kink.Certainly, a kind of mode in the one-body molded just embodiment of the invention, the embodiment of the invention is not as limit.
Further, also comprise fixed mechanism, described fixed mechanism is fixed together bending head 12 with PCB, with the reliability of further increase connection.Fixed mechanism can be for multiple, and is for example bonding.Bonding mode can be for multiple, for example: as shown in Figure 4 on bending head 12 surfaces one deck gum 15 is set; Or one deck gum is set on the PCB surface, or directly by bonding agent bending head 12 is bonded together with PCB, or another parts that all have glue by the two sides bond together bending head 12 with PCB.Above-mentionedly all just illustrate, the embodiment of the invention is not as limit.Same, the mode that bending head 12 and PCB are fixed together has a variety of, bondingly just illustrates, and the embodiment of the invention is not as limit.
The flexible PCB of the embodiment of the invention can improve the reliability that connects by increasing the mode of bonding pad area.Simultaneously, by increasing fixed mechanism, make FPC and PCB fixing more tight.
Embodiment 3
Third embodiment of the invention has proposed a kind of manufacture method of flexible PCB, comprising:
Make between flexible PCB first body and the bending head and form kink, and described kink surface forms pad.
The embodiment of the invention has proposed a kind of manufacture method of flexible PCB, can make flexible PCB form a kink, and this kink surface has pad.The flexible PCB that adopts embodiment of the invention mode to make, the single face FPC of the prior art that compares compares, and can be simply be welded on the pad on PCB surface by manual welding or other welding manners pad with FPC.When welding, can very simply the pad on kink surface and the pad on PCB surface be welded together; To reduce the difficulty of welding, reduce cost.Simultaneously, the FPC of this structure can make after the welding the solder joint naked eyes as seen, can detect find the defective of welding by outward appearance, to improve welding reliability.
Embodiment 4
Fourth embodiment of the invention has proposed a kind of manufacture method of flexible PCB, be on the basis of aforesaid the 3rd embodiment, to improve, that is: make between flexible PCB first body and the bending head and form kink, can adopt integrated mode, also can adopt tabular flexible PCB processing to make its bending, to form kink.Simultaneously, make described kink surface have pad, can adopt after forming kink, form pad on this kink surface again by aforementioned any mode; Can also adopt on the flexible PCB of present sheet and form pad, and then flexible PCB is bent to form kink.
That is: the method among the 3rd embodiment can for:
Can also for:
Step 22, as shown in Figure 7, with an end of described flexible PCB as bending head, bending head is bent (being the direction shown in the arrow among Fig. 7) towards flexible PCB first body, so that form kink between this bending head and flexible PCB first body;
Step 23, form pad 14 as shown in Figure 2 on described kink surface.
Can also for:
Step 31, make a sheet of flexible PCB;
Step 32, form pad on the surface of described flexible PCB one end;
Step 33, as shown in Figure 7, with an end of described flexible PCB as bending head, and with described pad locations as kink; Then bending head is bent (being the direction shown in the arrow among Fig. 7) towards flexible PCB first body, so that form kink between this bending head and flexible PCB first body.
Wherein, this kink 13 is U-shapeds.Certainly, this is that of the embodiment of the invention illustrates, what kink can also be for other shapes, V-arrangement for example, the embodiment of the invention is not as limit.
Certainly, at aforesaid step 11-12, and step 21-23, and among the step 31-33, connect effect in order further to improve, when forming pad, can make the length of pad 14 be not limited only to only be positioned at kink 13.Can make pad as shown in Figure 3, this pad 14 can extend a preset distance along the surface of bending head 12, can increase the contact area of pad 14 and the pad on PCB surface like this, to improve welding reliability.Can also be as shown in Figure 4, this pad 14 can extend preset distances along described flexible PCB first body 11 surfaces, can increase the contact area of pad 14 and the pad on PCB surface like this, to improve welding reliability.
Embodiment 5
Fifth embodiment of the invention has proposed a kind of flexible PCB and printed circuit board (PCB) bindiny mechanism, and its structure comprises flexible PCB 10 and printed circuit board (PCB) 20 as shown in Figure 5; Described printed circuit board (PCB) 20 surfaces are provided with second pad 21; Described flexible PCB 10 comprises flexible PCB first body 11 and bending head 12; Described bending head 12 is set up in parallel and forms kink 13 with described flexible PCB 10 bodies; Described kink surface is provided with first pad 14; Described bending head 13 reclines with described printed circuit board (PCB) 20 surfaces, and described second pad 21 is corresponding with first pad, 14 positions and weld together.
The embodiment of the invention has proposed a kind of flexible PCB and printed circuit board (PCB) bindiny mechanism, the kink that forms of FPC wherein, and pad is set on the kink surface.The single face FPC of the prior art that compares like this compares, and can be simply be welded on the pad on PCB surface by manual welding or other welding manners pad with FPC.When welding, can very simply the pad on kink surface and the pad on PCB surface be welded together; To reduce the difficulty of welding, reduce cost.Simultaneously, the FPC of this structure can make after the welding the solder joint naked eyes as seen, can detect find the defective of welding by outward appearance, to improve welding reliability.
Embodiment 6
Sixth embodiment of the invention has proposed a kind of flexible PCB and printed circuit board (PCB) bindiny mechanism, is to improve on the 5th embodiment basis, and its structure comprises flexible PCB 10 and printed circuit board (PCB) 20 as shown in Figure 5; Described printed circuit board (PCB) 20 surfaces are provided with second pad 21; Described flexible PCB 10 comprises flexible PCB first body 11 and bending head 12; Described bending head 12 is set up in parallel and forms U-shaped kink 13 with described flexible PCB 10 bodies; Described U-shaped kink 13 surfaces are provided with first pad 14; Described bending head 13 reclines with described printed circuit board (PCB) 20 surfaces, and described second pad 21 is corresponding with first pad, 14 positions and weld together.
Wherein, the structure of this flexible PCB 10 can be with reference to aforesaid first or second embodiment, that is:
As shown in Figure 3, this pad 14 can extend a preset distance along the surface of bending head 12, can increase the contact area of the pad on pad 14 and PCB surface like this, to improve welding reliability.
As shown in Figure 4, this pad 14 can extend a preset distance along described flexible PCB first body 11 surfaces, can increase the contact area of the pad on pad 14 and PCB surface like this, to improve welding reliability.
Further, also comprise fixed mechanism, described fixed mechanism is fixed together bending head 12 with PCB, with the reliability of further increase connection.Fixed mechanism can be for multiple, and is for example bonding.Bonding mode can be for multiple, for example: as shown in Figure 4 on bending head 12 surfaces one deck gum 15 is set; Or one deck gum is set on the surface of PCB, or directly by bonding agent bending head 12 is bonded together with PCB, or another parts that all have glue by the two sides bond together bending head 12 with PCB.Above-mentionedly all just illustrate, the embodiment of the invention is not as limit.Same, the mode that bending head 12 and PCB are fixed together has a variety of, bondingly just illustrates, and the embodiment of the invention is not as limit.
The reliability that connects can improve by increasing the mode of bonding pad area in the flexible PCB of the embodiment of the invention and printed circuit board (PCB) bindiny mechanism.Simultaneously, by increasing fixed mechanism, make FPC and PCB fixing more tight.
Embodiment 7
Seventh embodiment of the invention has proposed the method for attachment of a kind of flexible PCB and printed circuit board (PCB), and its flow process comprises as shown in Figure 6:
The embodiment of the invention has proposed a kind of method of attachment of flexible PCB printed circuit board (PCB), the kink that forms of FPC wherein, and pad is set on the kink surface.The single face FPC of the prior art that compares like this compares, and can be simply be welded on the pad on PCB surface by manual welding or other welding manners pad with FPC.When welding, can very simply the pad on kink surface and the pad on PCB surface be welded together; To reduce the difficulty of welding, reduce cost.Simultaneously, the FPC of this structure can make after the welding the solder joint naked eyes as seen, can detect find the defective of welding by outward appearance, to improve welding reliability.
Embodiment 8
Eighth embodiment of the invention has proposed the method for attachment of a kind of flexible PCB and printed circuit board (PCB), is to improve on the 7th embodiment basis, comprising:
Wherein, in step 201, need make flexible PCB as shown in Figure 2, this flexible PCB comprises: the kink that forms U-shaped between flexible PCB first body and the bending head.Its method can be for multiple, for example: during fabrication, just flexible PCB is manufactured U font structure, to form the kink of flexible PCB first body and bending head and U-shaped.Again for example, shown in arrow among Fig. 7 like that, with the bending of flexible PCB one end, to form the kink 13 of flexible PCB first body 11 and bending head 12 and U-shaped.
In step 201, form on kink surface pad as shown in Figure 2 method can for: after obtaining to have the flexible PCB of kink of flexible PCB first body and bending head and U-shaped, form pad in U-shaped kink surface coverage.Mode at the surface coverage pad can adopt mode of the prior art, and the embodiment of the invention is not made qualification to this.Can also for, at first cover and form pad, and then as shown in Figure 6, with the bending of flexible PCB one end, to form the kink of flexible PCB first body and bending head and U-shaped at an end surfaces of flexible PCB.Like this, when bending, will form pad on the surface of U-shaped kink.
When kink forms pad, can be as shown in Figure 3, this pad 14 can extend a preset distance along the surface of bending head 12, can increase the contact area of pad 14 and the pad on PCB surface like this, to improve welding reliability.Can also be as shown in Figure 4, this pad 14 can extend preset distances along described flexible PCB first body 11 surfaces, can increase the contact area of pad 14 and the pad on PCB surface like this, to improve welding reliability.
Step 202, the bending head and the described printed circuit board surface of described flexible PCB reclined, so that the pad on described kink surface is corresponding with the pad locations of described printed circuit board surface;
Wherein, can recline with the PCB surface, so that first pad 14 on bending head 12 surfaces abuts in one to one with second pad 21 on PCB surface with reference to bending head 12 shown in Figure 5 with FPC.
Step 203, the pad on the kink surface of described flexible PCB and the pad of described printed circuit board surface are welded together.
As shown in Figure 5, weld together by scolding tin between second pad 21 with first pad 14 on kink 13 surfaces and PCB surface during welding.Certainly, this just illustrates, and the embodiment of the invention is not as limit.
By above embodiment as can be seen, the embodiment of the invention has proposed a kind of flexible PCB, is provided with the kink and the bending head of a U-shaped, and on the kink surface pad is set.The flexible PCB of this structure, can when welding, the pad of kink and the pad of printed circuit board surface be welded together, weld part can be observed, whether have short circuit or weld bad place, the prior art of comparing can improve reliability by naked eyes if in follow-up check, can differentiate.Simultaneously, the kink of the flexible PCB of the embodiment of the invention can be provided with fixed mechanism and printed circuit board (PCB) is fixed together, and preventing producing relative displacement between the two, thereby weld part is produced damage.The pad of this kink can extend a preset distance towards the direction of bending head and/or the direction of flexible PCB first body, the reliability that is connected with printed circuit board (PCB) with further raising, and reduce the technology difficulty of welding.
The embodiment of the invention has proposed a kind of flexible circuit board fabrication method, can produce aforesaid flexible PCB in several ways.These modes can be saved manufacturing cost more, and guarantee the quality of the flexible PCB produce.
The embodiment of the invention has also proposed a kind of flexible PCB and printed circuit board (PCB) bindiny mechanism, comprises the flexible PCB that is provided with U-shaped kink and bending head, and the surface is provided with the printed circuit board (PCB) of pad.Like this can be when welding, just the pad of the pad of kink and printed circuit board surface welds together, weld part can be observed, whether have short circuit or weld bad place, the prior art of comparing can improve reliability by naked eyes if in follow-up check, can differentiate.Simultaneously, the kink of the flexible PCB of the embodiment of the invention can be provided with fixed mechanism and printed circuit board (PCB) is fixed together, and preventing producing relative displacement between the two, thereby weld part is produced damage.The pad of this kink can extend a preset distance towards the direction of bending head and/or the direction of flexible PCB first body, the reliability that is connected with printed circuit board (PCB) with further raising, and reduce the technology difficulty of welding.
The embodiment of the invention has also proposed the method for attachment of a kind of flexible PCB and printed circuit board (PCB), forms the kink of U-shaped between flexible PCB first body by making flexible PCB and the bending head, and makes the kink surface be provided with pad.Pad and printed circuit board (PCB) with the kink of flexible PCB can make weld part be observed so then, and whether can differentiate by naked eyes in follow-up check have short circuit or weld bad place, and the prior art of comparing can improve reliability.Simultaneously, the kink of the flexible PCB of the embodiment of the invention can be provided with fixed mechanism and printed circuit board (PCB) is fixed together, and preventing producing relative displacement between the two, thereby weld part is produced damage.The pad of this kink can extend a preset distance towards the direction of bending head and/or the direction of flexible PCB first body, the reliability that is connected with printed circuit board (PCB) with further raising, and reduce the technology difficulty of welding.
The above only is preferred embodiment of the present invention, and is in order to restriction the present invention, within the spirit and principles in the present invention not all, any modification of being done, is equal to replacement, improvement etc., all should be included within protection scope of the present invention.
Claims (14)
1. a flexible PCB is characterized in that, comprises flexible PCB first body and bending head; Described bending head and described flexible PCB first body are set up in parallel and form kink; Described kink surface is provided with pad.
2. flexible PCB according to claim 1 is characterized in that, described kink is a U-shaped.
3. flexible PCB according to claim 1 is characterized in that described pad extends a preset distance along the surface of described bending head; And/or described pad extends a preset distance along described flexible PCB first body surface.
4. flexible PCB according to claim 1 is characterized in that, described flexible PCB first body and bending head are one-body molded,
Perhaps,
Described bending head is that the end to described flexible PCB bends and forms.
5. the manufacture method of a flexible PCB is characterized in that, comprising:
Make between flexible PCB first body and the bending head and form kink, and described kink surface forms pad.
6. the manufacture method of flexible PCB according to claim 5 is characterized in that, described making between flexible PCB first body and the bending head forms kink, and described kink surface formation pad, comprising:
An one-body molded flexible PCB, described flexible PCB comprise flexible PCB first body and a bending head, and form kink between described flexible PCB first body and the bending head;
Form pad on described kink surface.
7. the manufacture method of flexible PCB according to claim 5 is characterized in that, described making between flexible PCB first body and the bending head forms kink, and described kink surface formation pad, comprising:
Make a flexible PCB;
One end of described flexible PCB as bending head, is bent the end of bending head, so that form kink between this bending head and flexible PCB first body towards flexible PCB first body;
Form pad on described kink surface.
8. the manufacture method of flexible PCB according to claim 5 is characterized in that, described method comprises:
Make a sheet of flexible PCB;
Surface at described flexible PCB one end forms pad;
With this end of described flexible PCB as bending head, and with described pad locations as kink, the end of bending head is bent towards flexible PCB first body, to form described kink.
9. according to the manufacture method of each described flexible PCB of claim 5-8, it is characterized in that described kink is a U-shaped.
10. flexible PCB and printed circuit board (PCB) bindiny mechanism is characterized in that, comprising: flexible PCB and printed circuit board (PCB); Described flexible PCB comprises flexible PCB first body and bending head; Described bending head and described flexible PCB first body are set up in parallel and form kink; Described kink surface is provided with first pad; Described printed circuit board surface is provided with second pad; Described bending head and described printed circuit board surface recline, and make described second pad corresponding with first pad locations and weld together.
11. flexible PCB according to claim 10 and printed circuit board (PCB) bindiny mechanism is characterized in that, described kink is a U-shaped.
12. flexible PCB according to claim 10 and printed circuit board (PCB) bindiny mechanism is characterized in that described pad extends a preset distance along the surface of described bending head; And/or; Described pad extends a preset distance along described flexible PCB first body surface.
13. flexible PCB according to claim 10 and printed circuit board (PCB) bindiny mechanism is characterized in that, also comprise fixed mechanism, described fixed mechanism is fixed together described bending head and described printed circuit board (PCB).
14. the method for attachment of flexible PCB and printed circuit board (PCB) is characterized in that, comprising:
Make between flexible PCB first body and the bending head and form kink, and described kink surface forms pad;
The bending head and the described printed circuit board surface of described flexible PCB are reclined, so that the pad on described kink surface is corresponding with the pad locations of described printed circuit board surface;
The pad on described kink surface and the pad of described printed circuit board surface are welded together.
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| CN201010290477XA CN101945538A (en) | 2010-09-19 | 2010-09-19 | Flexible circuit board, and mechanism and method for connecting flexible circuit board and printed circuit board |
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| CN201010290477XA CN101945538A (en) | 2010-09-19 | 2010-09-19 | Flexible circuit board, and mechanism and method for connecting flexible circuit board and printed circuit board |
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Cited By (7)
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| CN104039080A (en) * | 2014-05-26 | 2014-09-10 | 京东方科技集团股份有限公司 | Circuit board and display device |
| CN104936383A (en) * | 2014-03-18 | 2015-09-23 | 联想(北京)有限公司 | Single board manufacturing method and single board |
| CN106163137A (en) * | 2016-07-05 | 2016-11-23 | 四川九洲电器集团有限责任公司 | A kind of welding procedure and structural member |
| CN104599255B (en) * | 2015-03-02 | 2017-05-10 | 华南理工大学 | FPC image surface curvature eliminating method |
| CN107632475A (en) * | 2017-10-31 | 2018-01-26 | 武汉天马微电子有限公司 | Display panel and display device |
| TWI693867B (en) * | 2018-08-30 | 2020-05-11 | 大陸商 業成科技（成都）有限公司 | Bonding pad region structure |
| CN114630490A (en) * | 2022-03-31 | 2022-06-14 | 苏州浪潮智能科技有限公司 | Flexible circuit board and bonding pad connecting system |
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| CN106163137B (en) * | 2016-07-05 | 2018-09-28 | 四川九洲电器集团有限责任公司 | A kind of welding procedure and structural member |
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Application publication date: 20110112 |