CN104723677A - Flexible circuit printing method and device based on electro-hydraulic coupling power - Google Patents
Flexible circuit printing method and device based on electro-hydraulic coupling power Download PDFInfo
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- CN104723677A CN104723677A CN201510083727.5A CN201510083727A CN104723677A CN 104723677 A CN104723677 A CN 104723677A CN 201510083727 A CN201510083727 A CN 201510083727A CN 104723677 A CN104723677 A CN 104723677A
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Abstract
The invention discloses a flexible circuit printing method and device based on electro-hydraulic coupling power. By the adoption of the jet flow active control mode and additional arrangement of a horizontal multi-directional control electric field, charged jet flow can be controlled to be accurately positioned at any point in an X-Y plane under the multi-field coupling compounding action of an alternating electric field, a direct electric field, a gravity field and mechanical power, and therefore a needed flexible developable circuit interconnection structure is manufactured. Meanwhile, continuous jet printing is achieved, a winding structure with high malleability and high precision can be generated, and the method and device are especially suitable for large-area reliable manufacturing of flexible developable circuit interconnection structures. The method and device comprehensively consider the advantages and disadvantages of electrostatic spraying jet and electrostatic spinning, and by the adoption of the technical means, the electrostatic spinning technology with deposition difficult to accurately position in the prior art is made to have controllability under the action of multiple coupling fields. The method and device can be widely applied to the field of electronic manufacturing.
Description
Technical field
The present invention relates to electronic manufacturing field, particularly relate to a kind of flexible circuit printing process based on electric liquid coupling power and device thereof.
Background technology
Flexible extending circuit, due to the bending resistance of its excellence and stretch-proof performance and the feature such as high efficiency, low cost manufacture thereof, has broad application prospects, as electronic skin, flexible extensible display screen etc.Extend and anti-bending strength to improve it, the syndeton that the many employings of flexible circuit are wriggled.
Printing techniques (Ink-jet Printing), as a kind of conventional fabrication processes, is widely used in electronic manufacturing field.Traditional Printing techniques is mainly divided into (Drop-on-Demand) of continous way (Continuous) and printing type as required; But because these two kinds traditional jet printing techniques adopt hot pressing power spray printing or piezoelectric power spray printing, spray printing resolution ratio is subject to jet diameters impact greatly, realize less shower nozzle manufacture and then need the extremely complicated and technique of costliness, so the spray printing yardstick of these two kinds of Printing techniques is at 20 μm-100 μm, there is yardstick restriction, more high-resolution spray printing cannot be realized.
Electricity liquid coupling spray printing is owing to adopting high voltage electric field masterpiece to be spray printing power, spray printing yardstick does not limit by jet size, can realize nanoscale spray printing, simultaneously, electricity liquid coupling spray printing can the multiple material such as spray printing macromolecular material, electrically conductive ink, causes great concern in recent years.
Electricity liquid coupling spray printing is mainly divided into a spray formula (also known as static spray printing) and continous way (also known as electrostatic spinning).Static spray printing controllability is good, easily realizes patterns of high precision spray printing, but because jet printing process is discontinuous, its spray printing pattern is made up of discretization point, cannot meet in flexible electronic printing the successional requirement of wire.Electrostatic spinning can realize continuous spray printing, but due in jet printing process jet there will be " whip move " phenomenon, be difficult to realize accurate deposition location and patterning.
In order to realize electrohydrodynamic spray printing electronic device, obtain serpentine structure simultaneously, prior art has proposed some solutions, as adopted prestretching, first flexible substrates is carried out prestretched, then spray printing syndeton, after prestretched release, substrate recovers nature, and syndeton is owing to being under pressure, flexing becomes serpentine shape, thus has good stretch-proof performance.But this manufacture method still exists many deficiencies, as needs prestretched operation, flow process is complicated, and its tensile resistance affects by prestretched degree.
A kind of electrostatic spinning that utilizes is proposed to prepare the method for micro-nano serpentine structure in patent CN102162176A, it is by spraying electrospun polymer solution via shower nozzle, and fall on flexible substrates through electric field action, the nonlinear instability whip of jet is utilized to move, helical form is formed in space, according to effluxvelocity, moving metal collecting board, on substrate, deposition forms ripple struction.But further research shows, still there is following defect or deficiency in the method: the skyborne motion of electrified jet is unstable, its track presents strong nonlinearity character, influence factor is quite complicated, to environment and parametric variable sensitivity, be difficult to really to realize high-precision pattern control, for a long time, stably can not obtain specific serpentine structure.
Conventional electrostatic device for spinning, the DC voltage that many employings are constant, forms DC electric field, in course of injection, due to jet band like charges, causes producing the Coulomb force of repelling each other between shower nozzle and collection version, thus causes the aggravation of jet instability, and controllability reduces; Meanwhile, due to band like charges, the electric charge being first deposited on the nano wire (nano wire) on substrate can not be led away in time, and its residual charge is by raw for correlation miscarriage repulsive interaction, and impact deposits positioning precision; Moreover because jet produces directed movement under electric field action, along with deposit thickness increases, substrate conducting rate declines, and the electric field between shower nozzle and substrate weakens, and finally causes spraying stopping.
In sum, there is following problem in prior art:
(1) traditional spray printing precision is restricted;
(2) static spray printing cannot realize continuous structure spray printing, cannot meet the requirement that electronics connects;
(3) electrostatic spinning poor controllability, be difficult to realize precise patterning spray printing, and spinning is restricted for continuous time;
(4) spray printing after employing prestretched, then carry out release recovery, thus the process obtaining serpentine structure needs additional process, process is complicated.
Summary of the invention
In order to solve the problems of the technologies described above, the object of this invention is to provide one and can realize large area serpentine structure, and a kind of flexible circuit printing process based on electric liquid coupling power that can raise the efficiency and device thereof.
The technical solution adopted in the present invention is:
Based on the flexible circuit printing process of electric liquid coupling power, comprise the following steps:
A, to supply raw materials to printing head, make raw material be full of printing head;
B, control printing head and form jet to printing substrate liquid droplets;
C, control jet move under horizontal component of electric field effect, make jet deposition on the printing substrate with the movement of horizontal X-Y motion platform, are formed and have ad hoc structure and the pattern possessing nanometer-diameter, thus the obtained required extending circuit interconnects structure of flexibility.
As the further improvement of the described flexible circuit printing process based on electric liquid coupling power, described step B comprises:
B1, control to produce vertical direction electric field between printing head and printing substrate;
B2, control printing head to be positioned at below printing head and with the printing substrate liquid droplets of horizontal X-Y motion platform movement;
There is displacement and form taylor cone in B3, described drop, and form jet after breaking through surface tension under vertical direction electric field.
As the further improvement of the described flexible circuit printing process based on electric liquid coupling power, described horizontal component of electric field produces by between multiple controlling plate.
As the further improvement of the described flexible circuit printing process based on electric liquid coupling power, described printing raw material is liquid.
As the further improvement of the described flexible circuit printing process based on electric liquid coupling power, described printing substrate adopts conductive material or insulating materials.
Another technical scheme of the present invention is:
Based on the flexible circuit printing equipment of electric liquid coupling power, comprise controller, signal generator, voltage amplifier, printing head, feedstock supply unit, raw material supply tube, X-Y motion platform, printing substrate and multiple controlling plate, described controller respectively with signal generator, feedstock supply unit is connected with X-Y motion platform, described signal generator is connected with voltage amplifier, described voltage amplifier exports respectively and is connected to printing head and multiple controlling plate, the described printing substrate be positioned at below printing head is arranged on X-Y motion platform, describedly be located at multiple controlling plates around printing substrate respectively between two relatively and be vertically mounted on X-Y motion platform, described feedstock supply unit is connected to printing head by raw material supply tube, described printing substrate is connected to ground.
As the further improvement of the described flexible circuit printing equipment based on electric liquid coupling power, described controlling plate is conductive plate, can produce electric field after on-load voltage.
As the further improvement of the described flexible circuit printing equipment based on electric liquid coupling power, described printing substrate adopts conductive material or insulating materials.
As the further improvement of the described flexible circuit printing equipment based on electric liquid coupling power, described signal generator is function signal generator, after being combined, can produce direct current or the AC field of random waveform, amplitude and frequency with voltage amplifier.
The invention has the beneficial effects as follows:
The present invention is based on the flexible circuit printing process of electric liquid coupling power by taking jet ACTIVE CONTROL mode, by the multidirectional control electric field of the level of setting up, make electrified jet in AC field, DC electric field, under gravitational field and mechanokinetic multi-scenarios method compound action, realize the accurate location of control jet any point on an x-y plane, thus the obtained required extending circuit interconnects structure of flexibility, and the present invention can spray printing continuously, can generate and possess high ductibility, the serpentine structure of high accuracy level, be particularly useful for the large-area reliable manufacture of flexible extension circuit interconnects structure.The present invention can consider the pluses and minuses of static spray printing and electrostatic spinning, by taking technological means, makes the electrostatic spinning technique being originally difficult to accurate pin deposition have controllability under the effect of multiple coupled field.
Another beneficial effect of the present invention is:
The present invention is based on the flexible circuit printing equipment of electric liquid coupling power by adopting the multidirectional control electric field of controlling plate generation level of multipair level, realize the accurate location of jet any point on an x-y plane, thus the obtained required extending circuit interconnects structure of flexibility.And the present invention adopts function signal generator and voltage amplifier to replace traditional high-voltage DC power supply, can according to technique needs, type of electric field on adjustment vertical direction and intensity, thus overcome the problem of jet band like charges, control the stability of spray printing and the physical property of spray printing product, improve deposition positioning precision simultaneously.The present invention can consider the pluses and minuses of static spray printing and electrostatic spinning, by taking technological means, makes the electrostatic spinning technique being originally difficult to accurate pin deposition have controllability under the effect of multiple coupled field.
Accompanying drawing explanation
Below in conjunction with accompanying drawing, the specific embodiment of the present invention is described further:
Fig. 1 is the flow chart of steps of the flexible circuit printing process that the present invention is based on electric liquid coupling power;
Fig. 2 is the flow chart of steps of the flexible circuit printing process step B that the present invention is based on electric liquid coupling power;
Fig. 3 is the structural representation of the flexible circuit printing equipment that the present invention is based on electric liquid coupling power.
Detailed description of the invention
With reference to figure 1, the present invention is based on the flexible circuit printing process of electric liquid coupling power, comprise the following steps:
A, to supply raw materials to printing head 4, make raw material be full of printing head 4;
B, control printing head 4 and form jet to printing substrate 9 liquid droplets;
C, control jet move under horizontal component of electric field effect, make jet deposition on the printing substrate 9 with the movement of horizontal X-Y motion platform 8, formed and there is ad hoc structure and the pattern possessing nanometer-diameter, thus the obtained required extending circuit interconnects structure of flexibility.
With reference to figure 2, as the further improvement of the described flexible circuit printing process based on electric liquid coupling power, described step B comprises:
B1, control to produce vertical direction electric field between printing head 4 and printing substrate 9;
B2, control printing head 4 to be positioned at below printing head 4 and with printing substrate 9 liquid droplets of horizontal X-Y motion platform 8 movement;
There is displacement and form taylor cone in B3, described drop, and form jet after breaking through surface tension under vertical direction electric field.
As the further improvement of the described flexible circuit printing process based on electric liquid coupling power, described horizontal component of electric field produces by between multiple controlling plate 6.
As the further improvement of the described flexible circuit printing process based on electric liquid coupling power, described printing raw material is liquid, be not limited to general polymer, can be conducting polymer, conductive ink, conductive silver paste or other liquid materials, and to be not limited to be solution, also can be molten state material or other liquids.
As the further improvement of the described flexible circuit printing process based on electric liquid coupling power, described printing substrate 9 adopts conductive material or insulating materials.
With reference to figure 3, the present invention is based on the flexible circuit printing equipment of electric liquid coupling power, comprise controller 1, signal generator 2, voltage amplifier 3, printing head 4, feedstock supply unit 5, raw material supply tube 7, X-Y motion platform 8, printing substrate 9 and multiple controlling plate 6, described controller 1 respectively with signal generator 2, feedstock supply unit 5 is connected with X-Y motion platform 8, described signal generator 2 is connected with voltage amplifier 3, described voltage amplifier 3 exports respectively and is connected to printing head 4 and multiple controlling plate 6, the described printing substrate 9 be positioned at below printing head 4 is arranged on X-Y motion platform 8, describedly be located at multiple controlling plates 6 around printing substrate 9 respectively between two relatively and be vertically mounted on X-Y motion platform 8, described feedstock supply unit 5 is connected to printing head 4 by raw material supply tube 7, described printing substrate 9 is connected to ground.
As the further improvement of the described flexible circuit printing equipment based on electric liquid coupling power, described controlling plate 6 is conductive plate, can produce electric field, and can be multipair, be not limited to both direction after on-load voltage.
As the further improvement of the described flexible circuit printing equipment based on electric liquid coupling power, described printing substrate 9 adopts conductive material or insulating materials.
As the further improvement of the described flexible circuit printing equipment based on electric liquid coupling power, described signal generator 2 is function signal generator, after being combined, can produce direct current or the AC field of random waveform, amplitude and frequency with voltage amplifier 3.
Apparatus of the present invention specific works principle is as follows:
Described feedstock supply unit 5 is connected with printing head 4 by raw material supply conduit 7, under controller 1 acts on, printing raw material is provided to printing head 4, certain altitude is had between printing head 4 and printing substrate 9, controller 1 is connected by wire with signal generator 2, signal generator 2 is connected with voltage amplifier 3, voltage amplifier 3 has plurality of voltages to export, be connected with multipair controlling plate 6 with printing head 4 respectively, controller 1 control signal generator 2 produces specific voltage signal, voltage signal is after voltage amplifier 3 amplifies, be carried on printing head 4 and controlling plate 6 respectively, control to produce specific electric field between printing head 6 and the printing substrate 9 of ground connection, control controlling plate 6 and produce specific horizontal deflection electric field, thus control the skyborne stress of electrified jet and movement locus, thus the deposition position of control jet on printing substrate 9, thus specific pattern is produced on printing substrate 9.
The specific embodiment of the invention 1 is as follows:
S11, configuration weight percent concentration are polyethylene glycol oxide (PEO) solution of 8%, use magnetic stirrer 24 hours, ultrasonic vibration 30 minutes at 20 DEG C;
S12, above-mentioned solution is injected feedstock supply unit 5, feedstock supply unit 5 is under controller 1 acts on, printing raw material is provided to printing head 4, printing substrate 9 is electrically-conductive backing plate, be fixed on X-Y motion platform 8, controller 1 control signal generator 2 produces d. c. voltage signal, 2KV high direct voltage is zoomed into through voltage amplifier 3, be carried in the DC high voltage electric field that printing head 4 forms vertical direction, produce electrified jet and carry out spray printing, now, if the deflection voltage signal being carried in the controlling plate 6 of X-direction is 0V, the deflection voltage signal being carried in the controlling plate 6 of Y-direction is 800V sinusoidal voltage, then jet is forced to simple harmonic motion in the Y direction, printing substrate 9 is fixed on X-Y motion platform 8, move in X direction with the speed of 5mm/s, then on printing substrate 9, deposit sinusoidal serpentine pattern.
The specific embodiment of the invention 2 is as follows:
S21, weight percent concentration are the PEDOT:PSS conducting solution of 7%, use magnetic stirrer 10 hours at 25 DEG C, static 2 hours;
S22, above-mentioned solution is injected feedstock supply unit 5, feedstock supply unit 5 is under controller 1 acts on, printing raw material is provided to printing head 4, printing substrate 9 is insulated substrate, be fixed on X-Y motion platform 8, controller 1 control signal generator 2 produces biased ac voltage signal, zoom into 3KV through voltage amplifier 3 and be biased ac high-voltage, be carried in the biased ac high-voltage electric field that printing head 4 forms vertical direction, produce electrified jet and carry out spray printing, now, if the voltage signal being carried in the controlling plate 6 of Y-direction is 0V, the voltage signal being carried in the controlling plate 6 of X-direction is 800V sinusoidal voltage, then jet is forced to simple harmonic motion in X-direction, printing substrate 9 is fixed on X-Y motion platform 8, move along Y-direction with the speed of 5mm/s, then on printing substrate 9, deposit sinusoidal serpentine pattern.
In specific implementation process, controller 1 can have more the deflection voltage and shower nozzle voltage that need to control each controlling plate 6 in real time, thus controls deposition position.
From foregoing, the present invention is based on the flexible circuit printing process of electric liquid coupling power and device thereof by taking jet ACTIVE CONTROL mode, by the multidirectional control electric field of the level of setting up, make electrified jet in AC field, DC electric field, under gravitational field and mechanokinetic multi-scenarios method compound action, realize the accurate location of control jet any point on an x-y plane, thus the obtained required extending circuit interconnects structure of flexibility, and the present invention can spray printing continuously, can generate and possess high ductibility, the serpentine structure of high accuracy level, be particularly useful for the large-area reliable manufacture of flexible extension circuit interconnects structure.The present invention can consider the pluses and minuses of static spray printing and electrostatic spinning, by taking technological means, makes the electrostatic spinning technique being originally difficult to accurate pin deposition have controllability under the effect of multiple coupled field.
More than that better enforcement of the present invention is illustrated, but the invention is not limited to described embodiment, those of ordinary skill in the art also can make all equivalent variations or replacement under the prerequisite without prejudice to spirit of the present invention, and these equivalent distortion or replacement are all included in the application's claim limited range.
Claims (9)
1., based on the flexible circuit printing process of electric liquid coupling power, it is characterized in that, comprise the following steps:
A, to supply raw materials to printing head, make raw material be full of printing head;
B, control printing head and form jet to printing substrate liquid droplets;
C, control jet move under horizontal component of electric field effect, make jet deposition on the printing substrate with the movement of horizontal X-Y motion platform, are formed and have ad hoc structure and the pattern possessing nanometer-diameter, thus the obtained required extending circuit interconnects structure of flexibility.
2. the flexible circuit printing process based on electric liquid coupling power according to claim 1, is characterized in that: described step B comprises:
B1, control to produce vertical direction electric field between printing head and printing substrate;
B2, control printing head to be positioned at below printing head and with the printing substrate liquid droplets of horizontal X-Y motion platform movement;
There is displacement and form taylor cone in B3, described drop, and form jet after breaking through surface tension under vertical direction electric field.
3. the flexible circuit printing process based on electric liquid coupling power according to claim 1, is characterized in that: described horizontal component of electric field produces by between multiple controlling plate.
4. the flexible circuit printing process based on electric liquid coupling power according to claim 1, is characterized in that: described printing raw material is liquid.
5. the flexible circuit printing process based on electric liquid coupling power according to claim 1, is characterized in that: described printing substrate adopts conductive material or insulating materials.
6. based on the flexible circuit printing equipment of electric liquid coupling power, it is characterized in that: comprise controller (1), signal generator (2), voltage amplifier (3), printing head (4), feedstock supply unit (5), raw material supply tube (7), X-Y motion platform (8), printing substrate (9) and multiple controlling plate (6), described controller (1) respectively with signal generator (2), feedstock supply unit (5) is connected with X-Y motion platform (8), described signal generator (2) is connected with voltage amplifier (3), described voltage amplifier (3) exports respectively and is connected to printing head (4) and multiple controlling plate (6), the described printing substrate (9) being positioned at printing head (4) below is arranged on X-Y motion platform (8), describedly be located at printing substrate (9) multiple controlling plates (6) around respectively between two relatively and be vertically mounted on X-Y motion platform (8), described feedstock supply unit (5) is connected to printing head (4) by raw material supply tube (7), described printing substrate (9) is connected to ground.
7. the flexible circuit printing equipment based on electric liquid coupling power according to claim 6, is characterized in that: described controlling plate (6) is conductive plate, can produce electric field after on-load voltage.
8. the flexible circuit printing equipment based on electric liquid coupling power according to claim 6, is characterized in that: described printing substrate (9) adopts conductive material or insulating materials.
9. the flexible circuit printing equipment based on electric liquid coupling power according to claim 6, it is characterized in that: described signal generator (2) is function signal generator, after combining with voltage amplifier (3), direct current or the AC field of random waveform, amplitude and frequency can be produced.
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| CN106847707A (en) * | 2017-01-18 | 2017-06-13 | 华中科技大学 | A kind of method that extending island bridge construction is prepared based on electrofluid Printing techniques |
| CN107214946A (en) * | 2017-07-11 | 2017-09-29 | 嘉兴学院 | A kind of multifrequency electrohydrodynamics printing equipment and its Method of printing |
| CN107225857A (en) * | 2016-03-25 | 2017-10-03 | 灿美工程股份有限公司 | Figure line formation device and method |
| CN109130496A (en) * | 2018-08-21 | 2019-01-04 | 嘉兴学院 | A kind of method and apparatus preparing flexible extending multilevel structure interconnection line |
| CN109203750A (en) * | 2018-08-21 | 2019-01-15 | 嘉兴学院 | A kind of electrohydrodynamics direct-write methods of flexible electronic ductility interconnection curve |
| CN113369108A (en) * | 2021-01-14 | 2021-09-10 | 南方科技大学 | Preparation method of electric field regulation and control sensor |
| CN113733751A (en) * | 2021-09-24 | 2021-12-03 | 华中科技大学 | Method, system and device for regulating morphology of electrofluid spray printing microstructure |
| CN114054235A (en) * | 2020-07-30 | 2022-02-18 | 重庆康佳光电技术研究院有限公司 | Solder jetting apparatus, method and device |
| CN114193942A (en) * | 2021-11-23 | 2022-03-18 | 华中科技大学 | Multi-process in-situ processing method and device for flexible electronic device |
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| CN107225857A (en) * | 2016-03-25 | 2017-10-03 | 灿美工程股份有限公司 | Figure line formation device and method |
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| CN109130496A (en) * | 2018-08-21 | 2019-01-04 | 嘉兴学院 | A kind of method and apparatus preparing flexible extending multilevel structure interconnection line |
| CN109203750A (en) * | 2018-08-21 | 2019-01-15 | 嘉兴学院 | A kind of electrohydrodynamics direct-write methods of flexible electronic ductility interconnection curve |
| CN109203750B (en) * | 2018-08-21 | 2020-05-01 | 嘉兴学院 | Electro-hydrodynamic direct writing method for flexible electronic malleable interconnection curve |
| CN109130496B (en) * | 2018-08-21 | 2023-12-01 | 嘉兴学院 | Method and equipment for preparing flexible extensible multilevel structure interconnection line |
| CN114054235A (en) * | 2020-07-30 | 2022-02-18 | 重庆康佳光电技术研究院有限公司 | Solder jetting apparatus, method and device |
| CN113369108A (en) * | 2021-01-14 | 2021-09-10 | 南方科技大学 | Preparation method of electric field regulation and control sensor |
| CN113733751A (en) * | 2021-09-24 | 2021-12-03 | 华中科技大学 | Method, system and device for regulating morphology of electrofluid spray printing microstructure |
| CN114193942A (en) * | 2021-11-23 | 2022-03-18 | 华中科技大学 | Multi-process in-situ processing method and device for flexible electronic device |
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Application publication date: 20150624 |