CN114340184A - A manufacturing method of a flexible circuit board and a processing method of a flexible material - Google Patents

Abstract

The invention relates to the field of precise processing of flexible materials, in particular to a method for manufacturing a flexible circuit board and a method for processing flexible materials. The method for processing flexible materials includes the following steps: determining an original processing drawing file of the flexible material to be processed, The original processing drawing file is stretched and deformed to the precision compensation processing drawing file; according to the precision compensation processing drawing file, the drawing file is processed on the flexible material under tension, so as to form on the flexible material under tension Processing graphics, and after unloading the tensile force on the flexible material, the processing graphics on the flexible material that is not subjected to the tensile force matches the theoretical graphics of the original processing drawing file. The processing method of flexible materials can solve the problem that when the flexible material is processed, the flexible material is directly stretched and deformed by the tensile force, which leads to the loss of processing accuracy.

Description

A manufacturing method of a flexible circuit board and a processing method of a flexible material

technical field

The invention relates to the technical field of the precision machining field of flexible materials, in particular to a method for manufacturing a flexible circuit board and a method for processing flexible materials.

Background technique

At present, flexible circuit boards are mainly produced by FCCL for mechanical or laser drilling and etching and electroplating. Whether it is electrolytic copper or rolled copper, the production cost is relatively high.

If you directly drill holes on the PI film (polyimide), then sputter and electroplate the seed layer, then electroplate the copper foil, and then directly etch the circuit, you can reduce the plasma cleaning, micro-etching, etc. of the traditional flexible circuit board process. process, can also directly reduce the material cost of FCCL. However, if only single sheets are produced, it is difficult to automate production and thus cannot significantly reduce costs.

If the roll-to-roll method is used, the production cost can be significantly reduced due to the ability to achieve a higher degree of automation. However, since the PI film is relatively thin, and the roll-to-roll production must have a pulling force on the PI film, in order to unwind and rewind the material normally, otherwise the rectification of the rewinding and unwinding cannot be realized. However, if the PI film is subjected to tensile force, elastic deformation will occur, and the processed graphics will lose the original processing accuracy after the tensile force of the PI film disappears, and the original processing accuracy will be lost after the elastic deformation of the PI film disappears. actual use.

SUMMARY OF THE INVENTION

The technical problem to be solved by the present invention is to provide a manufacturing method of a flexible circuit board and a processing method of a flexible material. The manufacturing method of a flexible circuit board can reduce the processes such as plasma cleaning and micro-etching of the traditional flexible circuit board manufacturing process, and can also directly Reduce the material cost of FCCL; the processing method of flexible material can solve the problem that when the flexible material is processed, the flexible material is directly stretched and deformed by the tensile force, which leads to the loss of processing accuracy.

In a first aspect, the present invention provides a manufacturing method of a flexible circuit board, the manufacturing method comprising the following steps:

S1, processing the graphic file of the flexible material to form a flexible material with processing graphics;

S2, sputtering and electroplating the flexible material with processed graphics to form a flexible copper clad laminate;

S3, etching circuits on the flexible copper clad plate to form a flexible circuit board.

The beneficial effects of the present invention are as follows: the manufacturing method of the flexible circuit board of the present invention directly processes the graphic file on the flexible material required for FCCL production, then forms the FCCL material by sputtering and electroplating, and finally directly performs development and photolithography , then the cleaning and micro-etching processes can be saved, and the procurement cost of FCCL finished materials can be saved, which can greatly reduce the production cost of the flexible circuit board. It will replace the existing soft board production process, which is a disruptive technological innovation.

In a second aspect, the present invention provides a processing method of a flexible material. The processing method performs graphic processing on the flexible material, including the following steps:

Determine the original processing drawing of the flexible material to be processed, and stretch and deform the original processing drawing to the precision compensation processing drawing;

According to the precision compensation processing drawing, the flexible material under tension is subjected to drawing processing, so as to form a processing pattern on the flexible material under tension, and after the pulling force of the flexible material is unloaded, The machining pattern on the flexible material that is not under tension matches the theoretical pattern of the original machining pattern.

In a third aspect, the present invention provides a processing system for flexible materials, the processing system is used for processing graphics files of flexible materials, including the following modules:

a processing drawing compensation module, which is used for determining the original processing drawing of the flexible material, and performing stretching and deformation on the original processing drawing to obtain the precision compensation processing drawing;

The graphic processing module is used for performing graphic processing on the flexible material under tension according to the precision compensation processing graphic, so as to form a processing graphic on the flexible material under tension, and after unloading the flexible material. After the flexible material is subjected to the tensile force, the processing pattern on the flexible material that is not subjected to the tensile force matches the theoretical pattern of the original processing drawing file.

In a fourth aspect, the present invention provides a processing device for flexible materials, the processing device comprising a processor, a memory, and a computer program stored in the memory and executable on the processor, when the computer program runs The processing method as described above is realized.

In a fifth aspect, the present invention provides a processing equipment for flexible materials, the processing equipment is used for processing graphics files of flexible materials, and includes a processing machine, and the processing machine is used for:

Determine the original processing drawing of the flexible material to be processed, and stretch and deform the original processing drawing to the precision compensation processing drawing;

According to the precision compensation processing drawing, the flexible material under tension is subjected to drawing processing, so as to form a processing pattern on the flexible material under tension, and after the pulling force of the flexible material is unloaded, The machining pattern on the flexible material that is not under tension matches the theoretical pattern of the original machining pattern.

The beneficial effects of the present invention are: in the processing method, system, device and equipment of the flexible material of the present invention, the stretching deformation of the flexible material in the processing width is used to perform precision compensation on the original processing drawing file, and the precision-compensating processing drawing file is obtained. , According to the precision compensation processing drawing file, the flexible material under tension is processed according to the drawing file, which overcomes the inability of the elastic deformation of the flexible coil to meet the processing accuracy. , making it highly feasible for efficient roll-to-roll processing of high-precision flexible materials.

Description of drawings

1 is a flow chart of a method for manufacturing a flexible circuit board according to the present invention;

Fig. 2 is the flow chart of a kind of processing method of flexible material of the present invention;

Fig. 3 is a structural block diagram of a flexible material processing system of the present invention;

FIG. 4 is a schematic structural diagram of a processing equipment of a flexible material according to the present invention.

In the accompanying drawings, the list of components represented by each number is as follows:

1. Unwinding and reeling machine, 11. Unwinding material roller, 12. Flexible material to be released, 13. Unwinding material counterweight roller, 14. Unwinding material driven roller; 2. Flexible material; 3. Processing machine Table, 31. Processing table; 4. Rewinding and reeling machine, 41. Rewinding material driven roller, 42, Rewinding material counterweight roller, 43. Rewinding flexible coil material, 44. Rewinding material roller.

Detailed ways

The principles and features of the present invention will be described below with reference to the accompanying drawings. The examples are only used to explain the present invention, but not to limit the scope of the present invention.

Example 1:

As shown in Figure 1, a manufacturing method of a flexible circuit board includes the following steps:

S1, processing the graphic file of the flexible material to form a flexible material with processing graphics;

S2, sputtering and electroplating the flexible material with processed graphics to form a flexible copper clad laminate;

S3, etching circuits on the flexible copper clad plate to form a flexible circuit board.

In the production process of the flexible circuit board, a flexible copper clad laminate (Flexible Copper Clad Laminate, FCCL, also known as: flexible copper clad laminate) is used as the processing substrate material of the flexible printed circuit board (Flexible Printed Circuit board, FPC). FCCL is composed of flexible insulating base film and metal foil. The flexible copper clad laminate composed of three different materials of copper foil, film and adhesive is called three-layer flexible copper clad laminate (referred to as "3L-FCCL"). The adhesive-free flexible copper clad laminate is called a two-layer flexible copper clad laminate (referred to as "2L-FCCL").

The production process of flexible circuit boards is generally as follows: FCCL drilling (laser drilling or mechanical drilling) - cleaning and micro-etching - lithography and development - filming and other processes, the process flow is complex, the cost is high, and the yield is high. It's hard to get high.

If you directly drill holes on the raw flexible insulating film of FCCL, for example, directly drill holes on a polyimide PI film, then use sputtering and electroplating to form FCCL materials, and then directly perform development and photolithography, then you can save Cleaning and micro-etching processes, and saving the procurement cost of FCCL finished materials, can greatly reduce the production cost of the flexible circuit board. The manufacturing method of the flexible circuit board of the present invention will replace the existing The board production process is a disruptive technological innovation.

Preferably, the image processing method in S1 includes any one or a combination of mechanical processing, plasma processing and laser processing.

The image file processing includes processing by means of mechanical drilling and cutting, laser cutting and drilling processing of flexible materials, and processing methods such as chemical or plasma.

Preferably, the S1 is specifically performing penetrating graphic processing on the flexible material to form a flexible material with penetrating processing graphics;

The S2 is specifically, performing double-sided sputtering and electroplating on a flexible material with a penetrating processing pattern, and generating an electroplating layer on the sidewall of the penetrating processing pattern to form an integrated rivet with a double-sided conductive layer Structure of flexible copper clad laminates.

The integrated rivet structure of the double-sided conductive layer makes the connection between the physical and electrical properties of the double-sided conductive layer more reliable and perfect.

Preferably, the S1 is specifically performing non-penetrating graphic processing on the flexible material to form a flexible material with non-penetrating processing graphics.

The non-penetrating image processing is performed on the flexible material. After sputtering and electroplating on the surface of the flexible material, the adhesion of the conductive layer sputtered and electroplated on the surface of the flexible material will be increased.

Preferably, micro-etching is performed on the flexible material on the basis of the non-penetrating processing pattern, and the obtained circuit is completely or partially embedded in the flexible material facing the direction of the flexible material.

Among them, partially embedded means that a part of the circuit is embedded in the flexible material facing the direction of the flexible material, and the other part is protruded from the flexible material. The embedded part and the protruding part constitute the whole circuit. As for the ratio of embedded to protruding Set according to the actual situation.

If the surface of the flexible material is partially buried in the direction of the circuit facing the flexible material and etched again, the protruding circuit surface is etched away, and there is still a circuit in the groove (in the non-penetrating processing pattern), then Equivalent to the line is fully embedded in the flexible material.

The circuit is partially embedded in the flexible material in the direction facing the flexible material, which increases the adhesion of the fine circuit on the surface of the flexible material.

And the most critical part in the manufacturing method of the flexible circuit board of the present invention is the precision of the drilling of the flexible insulating material. On the one hand, in order to save production costs, it is necessary to introduce automatic roll-to-roll production technology. Due to automatic roll-to-roll production, it involves the unwinding of roll materials and the rewinding of flexible materials after processing, and it is necessary to introduce tension to flexible materials. , so that the coils can be placed neatly and the coils can be collected neatly. However, since the flexible material is subjected to tension, the flexible material will undergo elastic deformation. After the flexible material is removed from the tension, the shape and positional accuracy of the surface of the flexible material will be greatly changed, resulting in the shape and/or positional accuracy of the graphics exceeding the production accuracy. requirements, resulting in the inability to continue production. In order to solve this technical problem, the present invention also provides a processing method of a flexible material. For details, refer to the second embodiment below.

Embodiment 2:

As shown in Figure 2, a method for processing flexible materials, which includes the following steps:

Determine the original processing drawing of the flexible material to be processed, and stretch and deform the original processing drawing to the precision compensation processing drawing;

According to the precision compensation processing drawing, the flexible material under tension is subjected to drawing processing, so as to form a processing pattern on the flexible material under tension, and after the pulling force of the flexible material is unloaded, The machining pattern on the flexible material that is not under tension matches the theoretical pattern of the original machining pattern.

The matching refers to the obtained processing graphics and theoretical processing graphics, which meet the requirements of design accuracy.

In some cases, the flexible material requires tension to obtain a relatively flat processing plane. Once the tension is introduced, it means that the shape and/or position accuracy of the processed graphics will exceed the original precision design requirements as the tension disappears. The processing method of the flexible material of the present invention is to ensure that the shape and/or positional accuracy of the processed graphics after the tension of the flexible material disappears when processing the flexible material with tension meets the design requirements.

The processing method of the flexible material of the present invention solves the problem of contradiction between the tension deformation of the flexible material and the shape and/or position accuracy of the processing graphic. When processing a flexible material under tension, the original processing drawing (shape and/or positional accuracy of the processing graphic) can be compensated first, so that the shape and/or position of the processed graphic after the tension is removed from the flexible material The accuracy meets the actual machining accuracy requirements.

There are three specific methods for stretching and deforming the original processing drawing to the precision compensation processing drawing.

Preferably, the first method for stretching and deforming the original processing drawing to the precision compensation processing drawing is:

Calculate the tensile deformation of the flexible material in the processing web according to the magnitude of the tensile force on the flexible material and the elastic modulus of the flexible material;

The original processing drawing file is compensated by the tensile deformation of the flexible material in the processing width, and the precision compensation processing drawing file is obtained.

This compensation method is simple and convenient, but the error will be relatively large, because the elastic modulus of the film is not easy to measure.

Preferably, the second method of stretching and deforming the original processing drawing to the precision compensation processing drawing is:

The flexible material that is not under tension is processed according to the preset processing pattern, so that a first processing pattern is formed on the flexible material that is not under tension, and the first processing pattern is read and recorded. coordinate data;

Applying a tensile force to the flexible material, the flexible material is deformed, so that the first processing graphic is transformed into a second processing graphic due to the deformation, and the coordinate data of the second processing graphic is read and recorded;

Compare the coordinate data of the second processing graphic with the theoretical coordinate data of the preset processing graphic, or compare the coordinate data of the second processing graphic with the coordinate data of the first processing graphic , to obtain the tensile deformation of the flexible material in the processing width;

The original processing drawing file is compensated by the tensile deformation of the flexible material in the processing width, and the precision compensation processing drawing file is obtained.

In this compensation method, the flexible material in the free state is directly processed to the drawing file to form the first processing pattern, and then the flexible material is elastically stretched under the corresponding tensile force. Therefore, the first processing pattern is transformed into The second processing graphic, and then measure the coordinate data (shape and/or position data) of the second processing graphic under tension, the coordinate data of the second processing graphic and the theoretical coordinate data of the preset processing graphic file The difference value of , or the difference between the coordinate data of the second processing graphic and the coordinate data of the first processing graphic is the data that should be compensated, so that the compensation data (tensile deformation) can be obtained relatively accurately.

Preferably, the third method of stretching and deforming the original processing drawing to the precision compensation processing drawing is:

Perform graphic processing on the flexible material under tension according to the preset processing graphics, so as to form a third processing graphic on the flexible material under tension, and read and record the coordinate data of the third processing graphic;

Unloading the tensile force on the flexible material, the flexible material recovers the deformation, so that the third processing graphic is transformed into the fourth processing graphic due to the recovery deformation, and the coordinate data of the fourth processing graphic is read and recorded;

Compare the coordinate data of the fourth processing graphic with the theoretical coordinate data of the preset processing graphic, or compare the coordinate data of the fourth processing graphic with the coordinate data of the third processing graphic , to obtain the tensile deformation of the flexible material in the processing width;

The original processing drawing file is compensated by the tensile deformation of the flexible material in the processing width, and the precision compensation processing drawing file is obtained.

In this compensation method, the graphic file is directly processed on the flexible material under tension to obtain the third processing graphic, and then the tensile force on the flexible material is removed. Therefore, the third processing graphic is transformed into the fourth processing graphic due to the recovery deformation. Then measure the coordinate data of the fourth graphic, the difference between the coordinate data of the fourth processing graphic and the theoretical coordinate data of the preset processing graphic file, or the coordinate data of the fourth processing graphic and the third processing graphic. The difference between the coordinate data of the processed graphics is the data that should be compensated, so that the compensation data can be obtained relatively accurately.

Specifically, in the above-mentioned second or third solution for obtaining the precision-compensated processing image file, the preset processing image file preferably adopts the image that is easier to identify the position coordinates. For example, the preset processing image file corresponds to The processing graphics are any one or a combination of circle, cross and mouth shape.

Preferably, the deformation of the flexible material due to tensile force is specifically elastic deformation; the compensation for the original processing drawing file using the tensile deformation of the flexible material in the processing width is specifically linear compensation or nonlinear compensation.

Preferably, before and after the graphic processing of the flexible material, the following steps are included: simultaneously unwinding and rewinding the roll of the flexible material; The roll operation is under tension.

Because the PI film is relatively thin, and the roll-to-roll production must have tension on the PI film, in order to unwind and rewind the material normally, otherwise the rectification action of rewinding and unwinding cannot be realized. During the process, the flexible material is subjected to tensile force.

Preferably, the flexible material is fixed by means of adsorption during the graphic processing of the flexible material.

The flexible material is fixed by the adsorption method, so as to avoid the flexible material from moving during the processing of the drawing file, and ensure the processing accuracy of the drawing file.

Preferably, the graphic processing performed on the flexible material includes a combination of one or more of drilling processing, cutting processing and welding processing.

Preferably, the flexible material is a single-layer flexible material or a multi-layer stacked composite flexible material.

Preferably, the flexible material is a combination lamination of any one or more of polyimide film, Teflon film and copper foil.

Polyimide film and Teflon film are commonly used flexible insulating materials in the circuit board industry and are very suitable for the production of flexible circuit boards.

Preferably, the thickness of the flexible material is less than 100 microns.

Embodiment three:

Based on the above-mentioned processing method for a flexible material, the present invention also provides a processing system for a flexible material.

As shown in Figure 3, a flexible material processing system includes the following modules,

a processing drawing compensation module, which is used for determining the original processing drawing of the flexible material, and performing stretching and deformation on the original processing drawing to obtain the precision compensation processing drawing;

The graphic processing module is used for performing graphic processing on the flexible material under tension according to the precision compensation processing graphic, so as to form a processing graphic on the flexible material under tension, and after unloading the flexible material. After the flexible material is subjected to the tensile force, the processing pattern on the flexible material that is not subjected to the tensile force matches the theoretical pattern of the original processing drawing file.

Embodiment 4:

Based on the above-mentioned method for processing a flexible material, the present invention also provides a processing device for a flexible material.

A processing device for flexible materials, comprising a processor, a memory and a computer program stored in the memory and executable on the processor, when the computer program runs, the processing method as described above is implemented.

Embodiment 5:

Based on the above-mentioned processing method of a flexible material, the present invention also provides a processing device for a flexible material.

A processing equipment for flexible materials, comprising a processing machine, the processing machine being used for,

Determine the original processing drawing of the flexible material to be processed, and stretch and deform the original processing drawing to the precision compensation processing drawing;

According to the precision compensation processing drawing, the flexible material under tension is subjected to drawing processing, so as to form a processing pattern on the flexible material under tension, and after the pulling force of the flexible material is unloaded, The machining pattern on the flexible material that is not under tension matches the theoretical pattern of the original machining pattern.

Preferably, the processing equipment of the flexible material of the present invention further comprises a reeling and reeling machine; the two ends of the flexible material are respectively wound on the reeling roller of the reeling and reeling machine and the rewinding and reeling machine. On the coiling roller of the coiling machine;

The unwinding and reeling machine is used for rolling the coiled flexible material out of the unwinding material roller and feeding it into the processing machine;

The rewinding and reeling machine is used for taking in and aligning the flexible material after being processed by the processing machine to form a roll;

The unwinding and reeling machine and the rewinding and reeling machine cooperate with each other to tighten the flexible material, and the flexible material is generated by the tension between the unwinding and reeling machine and the rewinding and reeling machine. Tensile elastic deformation.

Preferably, a counterweight roller or an elastic mechanism is configured on the unwinding and reeling machine or/and the rewinding and reeling machine, and the counterweight roller is used to press down the flexible material by its own gravity, or the elastic force A mechanism is used to apply tension to the flexible material.

If the gravity roller is configured, the tension (tension) of the flexible material is basically fixed, and the precision compensation at this time is relatively simple. If the elastic mechanism is configured, it depends on the specific situation, and it is better to ensure the constant tension of the flexible material.

Preferably, a graphic coordinate recognition system is provided on the processing table of the processing machine, and the graphic coordinate recognition system is used to read and record the coordinate data of the processing graphic formed after the processing machine performs the graphic processing.

Preferably, a negative pressure adsorption system is provided on the processing table of the processing machine, and the negative pressure adsorption system is used to adsorb and fix the flexible material on the processing table.

Preferably, the processing machine is specifically any one or a combination of a laser drilling machine, a laser cutting machine and a laser welding machine.

In this specific embodiment, as shown in FIG. 4 , 1 is an unwinding and reeling machine, 2 is a flexible material, 3 is a processing machine, and 4 is a rewinding and reeling machine.

The reeling roller of the unwinding and reeling machine 1 includes an unwinding material roller 11 and an unwinding material driven roller 14, and the counterweight roller configured on the unwinding and reeling machine 1 is the unwinding material counterweight roller 13, The flexible material 2 to be processed is wound on the unwinding roll 11 to form the flexible roll 12 to be unloaded; the winding roll of the rewinding and reeling machine 4 includes a winding roll 44 and a winding driven roll 41 , the counterweight roller configured on the rewinding and reeling machine 4 is the rewinding material counterweight roller 42 , and the processed flexible material 2 is wound on the rewinding material roller 44 to form a retracted flexible coil 43 .

The flexible coil material 12 to be released is installed on the unwinding material roller 11, the unwinding material roller 11 rotates clockwise, the flexible coil material 12 to be released can be turned out, and is pressed down by the weight of the unwinding material counterweight roller 13 to wind The flexible material 2 is drawn horizontally to the unwinding material driven roller 14 .

The flexible material 2 is located above the processing table 31 of the processing machine 3. The surface of the processing table 31 is designed with ventilation holes, which can form a negative pressure and adsorb the flexible material 2 on the surface of the processing table 31. The upper surface of the processing table 31 can be designed and installed. A jig plate (not shown in the figure) is used for processing chip removal purposes such as drilling. At this time, the flexible material 2 will be adsorbed on the jig plate by negative pressure.

The flexible material 2 passes through the winding material driven roller 41 and then goes down the winding material counterweight roller 42 , and the wound flexible material 43 is installed on the winding material roller 44 .

In principle, the unwinding material counterweight roller 13 and the rewinding material counterweight roller 42 need to be matched by gravity; the tension on the flexible material 2 is the gravity of the unwinding material counterweight roller 13 or the rewinding material counterweight roller 42 .

The flexible material connecting the unwinding and rewinding machine is stretched and deformed by the tension of the unwinding and rewinding machine. After being adsorbed by the processing table, the elastic deformation generated during the processing It is basically reserved. The processing software of the processing machine sets the precision compensation of tensile elastic deformation in the processing width, so that after the processing is completed, the tensile force on the flexible coil of the processing width is removed, and the elastic contraction of the stretched flexible coil is restored, so that the processed graphics The shape and/or position accuracy on the flexible material meets the design and processing accuracy requirements, overcoming the inability of the flexible material to meet the processing accuracy due to elastic deformation under tension. Efficient roll-to-roll processing of coils is highly feasible.

The manufacturing method of a flexible circuit board of the present invention has the following advantages:

1) A new low-cost flexible circuit board manufacturing process route is realized;

2) For the penetrating processing pattern, a perfect integrated rivet connection structure of double-sided conductive lines can be obtained to achieve reliable and perfect electrical performance connection, reliable mechanical connection and mechanical fatigue-resistant connection;

3) For non-penetrating processing graphics, the adhesion of single-panel lines on the surface of flexible materials can be significantly increased.

The processing method, system, device and equipment of a flexible material provided by the present invention have the following advantages:

1) Because the flexible material is subjected to tension, the roll-to-roll tension processing of the flexible material can be realized, especially the graphic shape and/or position accuracy of the laser processing of the flexible material with tension is solved;

2), suitable for roll-to-roll batch automatic production;

3), a low-cost flexible circuit board manufacturing process route is realized, which greatly reduces the manufacturing cost of flexible circuit boards and avoids the bottleneck of imported materials of FCCL flexible copper foil;

4) A method for manufacturing a double-sided flexible circuit board with high-performance electrical connection/high-reliability mechanical connection is realized.

The reader should understand that in the description of this specification, references to the terms "one embodiment," "some embodiments," "example," "specific example," or "some examples" and the like are intended to be described in conjunction with that embodiment or example. The specific features, structures, materials or characteristics of the present invention are included in at least one embodiment or example of the present invention. In this specification, schematic representations of the above terms are not necessarily directed to the same embodiment or example. Furthermore, the particular features, structures, materials or characteristics described may be combined in any suitable manner in any one or more embodiments or examples. Furthermore, those skilled in the art may combine and combine the different embodiments or examples described in this specification, as well as the features of the different embodiments or examples, without conflicting each other.

Although the embodiments of the present invention have been shown and described above, it should be understood that the above-mentioned embodiments are exemplary and should not be construed as limiting the present invention. Embodiments are subject to variations, modifications, substitutions and variations.

The above descriptions are only preferred embodiments of the present invention, and are not intended to limit the present invention. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention shall be included in the protection of the present invention. within the range.

Claims (25)

1. a manufacturing method of a flexible circuit board, is characterized in that: comprise the following steps, S1, processing the graphic file of the flexible material to form a flexible material with processing graphics; S2, sputtering and electroplating the flexible material with processed graphics to form a flexible copper clad laminate; S3, etching circuits on the flexible copper clad plate to form a flexible circuit board. 2 . The method for manufacturing a flexible circuit board according to claim 1 , wherein: the method of processing the image file in S1 includes any one or a combination of mechanical processing, plasma processing and laser processing. 3 . . 3 . The method for manufacturing a flexible circuit board according to claim 1 , wherein the S1 is specifically: performing penetrating graphic processing on the flexible material to form a flexible circuit with penetrating processing graphics. 4 . Material; The S2 is specifically, performing double-sided sputtering and electroplating on a flexible material with a penetrating processing pattern, and generating an electroplating layer on the sidewall of the penetrating processing pattern to form an integrated rivet with a double-sided conductive layer Structure of flexible copper clad laminates. 4 . The method for manufacturing a flexible circuit board according to claim 1 , wherein the S1 is specifically, performing non-penetrating graphic processing on the flexible material to form a non-penetrating processing graphic. 5 . flexible material. 5 . The method for manufacturing a flexible circuit board according to claim 4 , wherein: micro-etching is performed on the flexible material based on the non-penetrating processing pattern, and the obtained circuit faces all or the direction of the flexible material. 6 . partially embedded in the flexible material. 6. A processing method of a flexible material, characterized in that: processing the graphic file of the flexible material, comprising the following steps: Determine the original processing drawing of the flexible material to be processed, and stretch and deform the original processing drawing to the precision compensation processing drawing; According to the precision compensation processing drawing, the flexible material under tension is subjected to drawing processing, so as to form a processing pattern on the flexible material under tension, and after the pulling force of the flexible material is unloaded, The machining pattern on the flexible material that is not under tension matches the theoretical pattern of the original machining pattern. 7 . The processing method of flexible materials according to claim 6 , wherein: the specific method of stretching and deforming the original processing drawing file to the precision compensation processing drawing file is: 8 . Calculate the tensile deformation of the flexible material in the processing web according to the magnitude of the tensile force on the flexible material and the elastic modulus of the flexible material; The original processing drawing file is compensated by the tensile deformation of the flexible material in the processing width, and the precision compensation processing drawing file is obtained. 8 . The processing method of flexible materials according to claim 6 , wherein: the specific method of stretching and deforming the original processing drawing file to the precision compensation processing drawing file is: 9 . The flexible material that is not under tension is processed according to the preset processing pattern, so that a first processing pattern is formed on the flexible material that is not under tension, and the first processing pattern is read and recorded. coordinate data; Applying a tensile force to the flexible material, the flexible material is deformed, so that the first processing graphic is transformed into a second processing graphic due to the deformation, and the coordinate data of the second processing graphic is read and recorded; Compare the coordinate data of the second processing graphic with the theoretical coordinate data of the preset processing graphic, or compare the coordinate data of the second processing graphic with the coordinate data of the first processing graphic , to obtain the tensile deformation of the flexible material in the processing width; The original processing drawing file is compensated by the tensile deformation of the flexible material in the processing width, and the precision compensation processing drawing file is obtained. 9 . The processing method of a flexible material according to claim 6 , wherein the specific method for stretching and deforming the original processing drawing file to the precision compensation processing drawing file is: 10 . Perform graphic processing on the flexible material under tension according to the preset processing graphics, so as to form a third processing graphic on the flexible material under tension, and read and record the coordinate data of the third processing graphic; Unloading the tensile force on the flexible material, the flexible material recovers the deformation, so that the third processing graphic is transformed into the fourth processing graphic due to the recovery deformation, and the coordinate data of the fourth processing graphic is read and recorded; Compare the coordinate data of the fourth processing graphic with the theoretical coordinate data of the preset processing graphic, or compare the coordinate data of the fourth processing graphic with the coordinate data of the third processing graphic , to obtain the tensile deformation of the flexible material in the processing width; The original processing drawing file is compensated by the tensile deformation of the flexible material in the processing width, and the precision compensation processing drawing file is obtained. 10. The method for processing flexible materials according to claim 8 or 9, wherein the processing graphics corresponding to the preset processing graphics file are any one or more of a circle, a cross and a mouth shape. combination. 11. The processing method of a flexible material according to claim 8 or 9, characterized in that: the deformation of the flexible material due to tensile force is specifically elastic deformation; The compensation performed by the original processing drawing file is specifically linear compensation or nonlinear compensation. 12. The method for processing flexible materials according to any one of claims 6 to 9, characterized in that: before and after the graphic processing of the flexible materials, the following steps are included: The material performs the unwinding operation and the winding operation synchronously; the flexible material is subjected to tension due to the unwinding operation and the winding operation. 13. The processing method of a flexible material according to any one of claims 6 to 9, wherein the flexible material is fixed by means of adsorption when the flexible material is processed for drawing. 14. The method for processing flexible materials according to any one of claims 6 to 9, wherein the graphic processing on the flexible material comprises one or more of drilling, cutting and welding. combination of species. 15 . The processing method of a flexible material according to claim 6 , wherein the flexible material is a single-layer flexible material or a multi-layer superimposed composite flexible material. 16 . 16. The processing method of a flexible material according to any one of claims 6 to 9, wherein the flexible material is any one or more of polyimide film, Teflon film and copper foil combination stack. 17. The processing method of a flexible material according to any one of claims 6 to 9, wherein the thickness of the flexible material is less than 100 microns. 18. A processing system for flexible materials, characterized in that: it is used for processing graphics files for flexible materials, comprising the following modules: a processing drawing compensation module, which is used for determining the original processing drawing of the flexible material, and performing stretching and deformation on the original processing drawing to obtain the precision compensation processing drawing; The graphic processing module is used for performing graphic processing on the flexible material under tension according to the precision compensation processing graphic, so as to form a processing graphic on the flexible material under tension, and after unloading the flexible material. After the flexible material is subjected to the tensile force, the processing pattern on the flexible material that is not subjected to the tensile force matches the theoretical pattern of the original processing drawing file. 19. A processing device for flexible materials, characterized in that it comprises a processor, a memory, and a computer program stored in the memory and executable on the processor, the computer program being executed as claimed in claim 6 The processing method described in any one of to 17. 20. A processing equipment for flexible materials, characterized in that: it is used for processing graphics files on flexible materials, comprising a processing machine, the processing machine being used for: Determine the original processing drawing of the flexible material to be processed, and stretch and deform the original processing drawing to the precision compensation processing drawing; According to the precision compensation processing drawing, the flexible material under tension is subjected to drawing processing, so as to form a processing pattern on the flexible material under tension, and after the pulling force of the flexible material is unloaded, The machining pattern on the flexible material that is not under tension matches the theoretical pattern of the original machining pattern. 21. The processing equipment for flexible materials according to claim 20, characterized in that: it further comprises an unwinding coiler and a rewinding coiler; both ends of the flexible material are respectively wound on the unwinding coils on the reeling roller of the machine and the reeling roller of the rewinding reel; The unwinding and reeling machine is used for rolling the coiled flexible material out of the unwinding material roller and feeding it into the processing machine; The rewinding and reeling machine is used for taking in and aligning the flexible material after being processed by the processing machine to form a roll; The unwinding and reeling machine and the rewinding and reeling machine cooperate with each other to tighten the flexible material, and the flexible material is generated by the tension between the unwinding and reeling machine and the rewinding and reeling machine. Tensile elastic deformation. 22. The processing equipment for flexible materials according to claim 21, characterized in that: a counterweight roller or an elastic mechanism is configured on the unwinding and reeling machine or/and the rewinding and reeling machine, and the counterweight roller It is used to press down the flexible material by its own gravity, or the elastic mechanism is used to exert a pulling force on the flexible material. 23. The processing equipment for flexible materials according to any one of claims 20 to 22, wherein a graphic coordinate recognition system is provided on the processing table of the processing machine, and the graphic coordinate recognition system is used for reading Get and record the coordinate data of the processing graphics formed after the processing machine performs the graphics processing. 24. The processing equipment for flexible materials according to any one of claims 20 to 22, wherein a negative pressure adsorption system is provided on the processing table of the processing machine, and the negative pressure adsorption system is used to The flexible material is adsorbed and fixed on the processing table. 25. The processing equipment for flexible materials according to any one of claims 20 to 22, wherein the processing machine is specifically any one of a laser drilling machine, a laser cutting machine and a laser welding machine or a combination of more than one.

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