KR20200112539A - Roll-lamination apparatus for manufacturing flexible printed circuit board - Google Patents

Abstract

The present invention relates to a manufacturing method for an FPCB using a roll-lamination device, wherein unlike a conventional hot press method, an FPCB having no limitation in size and width can be manufactured through a roll lamination method in which an FCCL and the coverlay are pressed and heated with an upper roller and a lower roller to perform lamination, and the present invention simplifies a manufacturing process and minimizes a consumption rate of subsidiary materials, thereby reducing manufacturing costs and manufacturing time, and minimizing the occurrence rate of defective products through sufficient and uniform filling of the coverlay to manufacture the FPCB with various sizes and widths with improved productivity, safety, and quality.

Description

Roll-lamination apparatus for manufacturing FPCB TECHNICAL FIELD

The present invention relates to a roll lamination apparatus for manufacturing FPCB, and more particularly, there is no limitation in size and width through a roll lamination method in which FCCL and a coverlay are laminated by pressing and heating the upper roller part and the lower roller part, and the process is simplified. The present invention relates to a roll lamination device for manufacturing FPCB, which can manufacture FPCB that can reduce manufacturing time and reduce production cost by minimizing the consumption of subsidiary materials.

A printed circuit is a schematic representation of electrical wiring to be connected to a component in accordance with a circuit design. This is reproduced as an electrical conductor on an insulator in an appropriate manner. Printed Circuit Board (PCB) or Printed Wiring Board; PWB).

In recent years, as electronic devices such as LCD monitors, PDPs, notebook computers, mobile phones, PDAs, small video cameras and electronic notebooks have been miniaturized, miniaturization of printed circuit boards has been required, and accordingly, the printed circuit board is a flexible material, polyester (PET). ) Or a flexible printed circuit board (FPCB) made of a heat-resistant plastic film such as polyimide (PI) is increasing.

The flexible printed circuit board developed to enable high-density wiring to be integrated for the purpose of realizing the miniaturization and weight reduction of electronic products is excellent in heat resistance, bending resistance, durability and chemical resistance, and has good assembly and continuous production. Not only does the method have excellent workability and productivity, but also enables three-dimensional wiring depending on the form to be manufactured, and also has high reliability of the product because there is no wiring error.

In other words, a flexible printed circuit board (FPCB) is a mechanical device that forms a conductor circuit with good electrical conductivity over an insulator, and connects and supports the electronic component device to perform its function.

Conventionally, the manufacture of flexible printed circuit boards is a cover laywr film (C/L, cover layer) on the FCCL in the state of manufacturing FCCL (Flexible Copper Clad Laminate, FCCL Flexible Copper Clad Laminate) in a state in which lolyimide and copper foil are attached. ) Was produced by laminating.

Specifically, in a flexible printed circuit board requiring three-dimensional wiring, a coverlay (or a coverlay film or a cover layer) is used as a circuit protection material, not a solar resist.

In general, in the conventional flexible printed circuit board, a circuit pattern is formed on a flexible copper clad laminate (FCCL), and a coverlay, which is an insulating film, is attached thereon to manufacture a flexible printed circuit board.

This carobey has flexural properties and consists of a polyimide film and an epoxy adhesive layer. That is, the coverlay is applied for the same purpose as the solder resist (SR), which is a circuit protection element material used in a rigid printed circuit board.

In the case of using an adhesive type FCCL, a conventional flexible printed circuit board is manufactured by attaching a cover layer composed of an adhesive and polyimide after forming a circuit on the FCCL composed of a copper foil layer, an adhesive and polyimide, or using a non-adhesive type FCCL. In this case, a circuit was formed on the FCCL composed of a copper foil layer and polyimide, and then a coverlay composed of an adhesive and polyimide was attached.

In general, conventional flexible printed circuit boards are manufactured by hot press laminating of FCCL and coverlay. Specifically, a coverlay was placed on the upper part of the FCCL and pressurized with a press or heated simultaneously with the pressurization to press the coverlay to the FCCL to prepare a final FPCB.

As such, in the case of laminating the FCCL and the coverlay by the conventional hot press method, due to the characteristics of the hot press, it is difficult to manufacture an FPCB having a long width and a large size, and thus there is a problem that it cannot meet the industrial requirements.

In addition, in the case of laminating the FCCL and the coverlay by the conventional hot press method, the manufacturing cost of the FPCB increases and the overall FPCB manufacturing apparatus is miniaturized as a separate press unit must be provided or manufactured for each size and size of the FPCB. It cannot be done, and there is a problem of deteriorating reliability and stability.

Moreover, in the case of laminating the FCCL and the coverlay by the conventional hot press method, there is a problem that productivity is lowered due to an increase in the number of processes and maintenance costs are increased as a number of processes for hot press must be performed.

In addition, in the case of laminating the FCCL and the coverlay by the conventional hot press method, there are many kinds of subsidiary materials that are removed from the final product, increasing resource waste and environmental pollution, and increasing the manufacturing cost.

Korean Patent Registration Publication No. 10-0926283 Korean Patent Publication No. 10-2014-0023707 Korean Patent Registration Publication No. 10-0733156 Korean Patent Registration Publication No. 10-0955451

The present invention is to solve the above problems, and an object of the present invention is a size different from the conventional hot press method through a roll lamination method in which lamination is performed by pressing and heating FCCL and a coverlay with an upper roller part and a lower roller part. It is possible to manufacture FPCBs with no limit on the width and width, simplifying the manufacturing process and minimizing the consumption rate of subsidiary materials, reducing manufacturing cost and manufacturing time, and minimizing the occurrence of defective products through sufficient and uniform filling of the coverlay, resulting in productivity and safety And it is to provide a roll lamination apparatus for manufacturing an FPCB capable of manufacturing an FPCB having various sizes and widths with improved quality.

In addition, the present invention provides an FPCB manufacturing apparatus capable of manufacturing an FPCB without limitation in size and width with one apparatus at the lowest cost and highest quality by providing an FPCB manufacturing apparatus having a roll lamination apparatus for manufacturing FPCB. Is to do.

In order to achieve the object of the present invention, a roll lamination apparatus for manufacturing an FPCB according to an embodiment of the present invention includes: a chamber; An alignment unit for aligning the FCCL supplied into the chamber unit and the coverlay; A roller part for laminating the aligned FCCL and the coverlay; And a driving unit for driving the roller unit.

In order to achieve the object of the present invention, a roll lamination apparatus for manufacturing an FPCB according to an embodiment of the present invention includes an alignment unit for aligning the supplied FCCL and the coverlay; A roller part for laminating the aligned FCCL and the coverlay; A driving unit driving the roller unit; And a transfer unit for transferring the roller unit.

In order to achieve the object of the present invention, a roll lamination apparatus for manufacturing an FPCB according to another embodiment of the present invention includes an alignment unit for aligning the supplied FCCL and the coverlay; A roller part for laminating the aligned FCCL and the coverlay; A tension control unit for adjusting tension of the supplied FCCL and the supplied coverlay; And a driving unit for driving the roller unit.

In order to achieve the object of the present invention, a roll lamination apparatus for manufacturing an FPCB according to another embodiment of the present invention includes an alignment unit for aligning the supplied FCCL and the coverlay; A roller part for laminating the aligned FCCL and the coverlay; A driving unit driving the roller unit; And a control unit.

In addition, in another preferred embodiment of the roll lamination apparatus for manufacturing FPCB using roll lamination according to the present invention, the inside of the chamber part is in a standby state when laminating the FCCL and the coverlay of the roll lamination apparatus for FPCB manufacturing. Can be maintained.

In addition, in another preferred embodiment of the roll lamination apparatus for manufacturing FPCB using roll lamination according to the present invention, the inside of the chamber part is in a vacuum state when laminating the FCCL and the coverlay of the roll lamination apparatus for FPCB manufacturing. Can be maintained.

In addition, in another preferred embodiment of the roll lamination apparatus for manufacturing FPCB using roll lamination according to the present invention, the roller part of the roll lamination apparatus for manufacturing the FPCB heats and presses the FCCL and the upper part of the coverlay. part; And a lower roller part installed below the upper roller part to face the upper roller part in a height direction to heat and pressurize the FCCL and the lower part of the coverlay.

In addition, in another preferred embodiment of the roll lamination apparatus for manufacturing FPCB using roll lamination according to the present invention, the lower roller portion of the roller portion of the roll lamination apparatus for manufacturing FPCB may be formed of steel.

In addition, in another preferred embodiment of the roll lamination apparatus for manufacturing FPCB using roll lamination according to the present invention, the upper roller portion of the roll lamination apparatus for manufacturing FPCB may be formed of silicon.

In addition, in another preferred embodiment of the roll lamination device for manufacturing an FPCB using roll lamination according to the present invention, the conveying part of the roll lamination device for manufacturing an FPCB interlocks the upper roller part and the lower roller part to be transported in a horizontal direction. It may include; or a horizontal transfer unit for transporting each in the horizontal direction.

In addition, in another preferred embodiment of the roll lamination device for manufacturing FPCB using roll lamination according to the present invention, the conveying part of the roll lamination device for manufacturing the FPCB interlocks the upper roller part and the lower roller part to be transported in a vertical direction. It may further include a; vertical transfer unit for transporting each in the vertical direction.

In addition, in another preferred embodiment of the roll lamination device for manufacturing an FPCB using roll lamination according to the present invention, the transfer part of the roll lamination device for manufacturing an FPCB interlocks with the upper roller part and transfers in the height direction. It may further include; an upward transport unit for transporting each in the height direction.

In addition, in another preferred embodiment of the roll lamination apparatus for manufacturing FPCB using roll lamination according to the present invention, the control unit of the roll lamination apparatus for manufacturing FPCB includes the upper roller unit and the upper roller unit to laminate the FCCL and the coverlay. A basic data storage unit for storing temperature, pressure, pressing time, and heating time data of the lower roller unit; A position data storage unit for storing current position data of the upper roller unit and the lower roller unit; And a pressure sensing unit configured to sense pressures of the upper roller unit and the lower roller unit.

In addition, in another preferred embodiment of the roll lamination device for manufacturing FPCB using roll lamination according to the present invention, the control unit of the roll lamination device for manufacturing FPCB detects the temperature of the upper roller part and the lower roller part. May further include.

In addition, in another preferred embodiment of the roll lamination device for manufacturing FPCB using roll lamination according to the present invention, the control unit of the roll lamination device for FPCB manufacturing is an image confirming the temporary bonding state of the coverlay seated on the FCCL. It may further include a sensing unit.

Further, in another preferred embodiment of the roll lamination device for manufacturing an FPCB using roll lamination according to the present invention, the control unit of the roll lamination device for manufacturing an FPCB includes the pressure sensing unit, the temperature sensing unit, and the image sensing unit. It may further include a comparison unit for comparing the current pressure and temperature of the upper roller unit and the lower roller unit received from the contact position state of the coverlay and data stored in the basic data storage unit.

In addition, in another preferred embodiment of the roll lamination device for manufacturing FPCB using roll lamination according to the present invention, the control unit of the roll lamination device for FPCB manufacturing currently includes the upper roller part and the lower part according to the comparison result of the comparison part. It may further include an analysis unit for analyzing the normality of the FCCL and the coverlay laminated through the roller unit.

In addition, in another preferred embodiment of the roll lamination apparatus for manufacturing FPCB using roll lamination according to the present invention, the control unit of the roll lamination apparatus for manufacturing FPCB includes the roller unit, the driving unit, and the roller unit according to the analysis result of the analysis unit. The tension control unit, the transfer unit, and a command unit for transmitting a signal to the alignment unit; may further include.

In addition, in another preferred embodiment of the roll lamination device for manufacturing FPCB using roll lamination according to the present invention, the control unit of the roll lamination device for manufacturing FPCB includes the basic data storage unit, the location data storage unit, and the pressure sensing unit. And a display unit that displays a comparison result of the temperature sensing unit, the image sensing unit, and the comparison unit, and an analysis result of the analysis unit.

In order to achieve another object of the present invention, an FPCB manufacturing apparatus according to an embodiment of the present invention includes a roll lamination apparatus for manufacturing an FPCB according to any one of claims 1 to 19; Housing unit; An FCCL supply unit forming FCCL and supplying it to the rolling device; A coverlay supply unit for forming a coverlay and supplying it to the rolling device; A post-treatment unit for post-treating the FPCB formed by the roll lamination device by the post-treatment unit; And a cutting unit for cutting the post-treated FPCB.

In order to achieve another object of the present invention, an FPCB manufacturing apparatus according to another embodiment of the present invention includes a roll lamination apparatus for manufacturing an FPCB according to any one of claims 1 to 19; An FCCL supply unit forming FCCL and supplying it to the rolling device; A coverlay supply unit for forming a coverlay and supplying it to the rolling device; A post-treatment unit for post-treating the FPCB formed by the roll lamination device; A cutting unit for cutting the FPCB post-processed by the post-processing unit; And a control unit for controlling the FCCL supply unit, the coverlay supply unit, the post-treatment unit, and the cutting unit.

In addition, in another preferred embodiment of the FPCB manufacturing apparatus according to the present invention, the FPCB manufacturing apparatus may further include a processing unit for processing the FPCB cut by the cutting unit.

In addition, in another preferred embodiment of the FPCB manufacturing apparatus according to the present invention, the FCCL supply unit of the FPCB manufacturing apparatus includes a dry film attachment portion for attaching a dry film; An exposure unit for curing a certain portion of a portion to which the dry film attached by the dry film attachment unit is attached by a light source; A developing unit that peels off a portion not cured by the exposure unit from the dry film attachment unit; An etching portion for etching a portion of which copper is exposed to a portion peeled off by the developing portion; A cleaning unit for cleaning the FCCL, which has been etched by the etching unit; And an FCCL transfer unit for transferring the FCCL cleaned by the cleaning unit to the roll lamination device.

Further, in another preferred embodiment of the FPCB manufacturing apparatus according to the present invention, the post-treatment unit of the FPCB manufacturing apparatus includes: a baking unit for curing the FPCB formed by the roll lamination apparatus through heat treatment; A re-cleaning unit for cleaning the FPCB heat-cured by the baking unit; And a surface treatment unit for performing a surface treatment for preventing oxidation of the terminal portion of the FPCB cleaned by the recleaning unit.

In addition, in another preferred embodiment of the FPCB manufacturing apparatus according to the present invention, the processing unit of the FPCB manufacturing apparatus comprises: a punching unit for forming a hole in the FPCB that has been cut by the cutting unit; And a punching portion for punching the FPCB having holes formed by the punching portion.

In addition, in another preferred embodiment of the FPCB manufacturing apparatus according to the present invention, the FPCB manufacturing apparatus may further include an inspection unit for inspecting the FPCB processed by the processing unit.

The roll lamination device for FPCB manufacturing according to the present invention is manufactured by laminating through a roll lamination method by pressing and heating FCCL and a coverlay with the upper and lower rollers, and thus, unlike the existing hot press method, the size and width There is an effect that can produce an unlimited FPCB.

In addition, the roll lamination device for manufacturing the FPCB according to the present invention minimizes subsidiary materials for laminating the FCCL and the coverlay by laminating the FCCL and the coverlay by a roll laminating method instead of a hot press method, and reduces the manufacturing process. According to this method, the overall manufacturing cost and manufacturing time of the FPCB can be reduced, and the convenience of the operator can be achieved.

Moreover, the roll lamination device for FPCB manufacturing according to the present invention aims to reduce the size of the roll laminating device by laminating the FCCL and the coverlay through a roll laminating method instead of a hot press method, and to achieve a total compaction of the FPCB manufacturing device Thus, there is an effect of maximizing space utilization, reducing maintenance cost and time, and increasing the life of the device.

In addition, the roll lamination device for FPCB manufacturing according to the present invention laminates the FCCL and the coverlay using a roll laminating method rather than a hot press method. It has the effect of improving the quality of FPCB by filling the coverlay uniformly and sufficiently to increase the satisfaction of consumers and to increase sales and exports.

1 shows a configuration diagram of an FPCB manufacturing apparatus including a roll lamination apparatus for manufacturing an FPCB according to the present invention.
2 is a block diagram of an FCCL supply unit of an FPCB manufacturing apparatus including a roll lamination apparatus for manufacturing an FPCB according to the present invention.
3 is a block diagram of a post-processing unit of an FPCB manufacturing apparatus including a roll lamination apparatus for manufacturing an FPCB according to the present invention.
4 is a block diagram of a processing unit of an FPCB manufacturing apparatus including a roll lamination apparatus for manufacturing an FPCB according to the present invention.
5 shows a conceptual diagram of a state in which FCCL and a coverlay are supplied to a roll lamination device for manufacturing an FPCB according to the present invention.
6 shows a conceptual diagram of a roll lamination apparatus for manufacturing an FPCB according to the present invention.
7 is a block diagram of a control unit of a roll lamination apparatus for manufacturing an FPCB according to the present invention.
8 shows a procedure diagram of a method for manufacturing an FPCB using a roll lamination device for manufacturing an FPCB according to the present invention.
9 shows a detailed view of the FCCL manufacturing step in the FPCB manufacturing method using the roll lamination device for manufacturing the FPCB according to the present invention.
10 shows a detailed view of a post-treatment step in the FPCB manufacturing method using a roll lamination device for manufacturing an FPCB according to the present invention.
11 shows a detailed view of a processing step in the FPCB manufacturing method using a roll lamination device for manufacturing an FPCB according to the present invention.
12 shows a schematic diagram of FCCL manufactured by the FCCL supply unit of the FPCB manufacturing apparatus including the roll lamination apparatus for manufacturing the FPCB according to the present invention.
13 shows a schematic diagram of a coverlay supplied to a roll lamination device for manufacturing an FPCB according to the present invention.
14 shows a schematic diagram of an FPCB manufactured by an FPCB manufacturing apparatus including a roll lamination apparatus for manufacturing an FPCB according to the present invention.
15 shows a cross-sectional photograph of an FPCB manufactured with an FPCB manufacturing apparatus including a roll lamination apparatus for manufacturing an FPCB according to the present invention.
16 shows a cross-sectional photograph of an FPCB manufactured in a state in which the coverlay is insufficient by a conventional hot press method.
17 shows a graph of temperature conditions of reflow for lead mounting of an FPCB manufactured by an FPCB manufacturing apparatus including a roll lamination apparatus for manufacturing an FPCB according to the present invention.

Hereinafter, with reference to the drawings of a roll lamination apparatus for manufacturing an FPCB according to an embodiment of the present invention will be described in detail. The following embodiments are provided as examples in order to sufficiently convey the spirit of the present invention to those skilled in the art. Accordingly, the present invention is not limited to the embodiments described below and may be embodied in other forms. In addition, in the drawings, the size and thickness of the device may be exaggerated for convenience. Throughout the specification, the same reference numbers indicate the same elements.

Advantages and features of the present invention, and a method of achieving them will become apparent with reference to the embodiments described below in detail together with the accompanying drawings. However, the present invention is not limited to the embodiments disclosed below, but will be implemented in a variety of different forms, only the present embodiments make the disclosure of the present invention complete, and common knowledge in the technical field to which the present invention pertains. It is provided to completely inform the scope of the invention to those who have it, and the invention is only defined by the scope of the claims. The same reference numerals refer to the same elements throughout the specification. In the drawings, the sizes and relative sizes of layers and regions may be exaggerated for clarity of description.

The terms used in this specification are for describing exemplary embodiments, and therefore, are not intended to limit the present invention. In this specification, the singular form also includes the plural form unless specifically stated in the phrase. As used in the specification, "comprise" and/or "comprising" refers to the presence of one or more other components, steps, actions and/or elements, and/or elements, steps, actions and/or elements mentioned. Or does not exclude additions.

1 shows a configuration diagram of an FPCB manufacturing apparatus including a roll lamination apparatus for manufacturing an FPCB according to the present invention, and FIG. 2 is an FCCL supply unit of an FPCB manufacturing apparatus including a roll lamination apparatus for manufacturing an FPCB according to the present invention. 3 shows a configuration diagram of a post-treatment unit of an FPCB manufacturing apparatus including a roll lamination apparatus for manufacturing an FPCB according to the present invention, and FIG. 4 is a roll lamination apparatus for manufacturing an FPCB according to the present invention. It shows the configuration of the processing unit of the FPCB manufacturing apparatus including. 5 shows a conceptual diagram of a state in which FCCL and a coverlay are supplied to a roll lamination apparatus for manufacturing an FPCB according to the present invention, FIG. 6 shows a conceptual diagram of a roll lamination apparatus for manufacturing an FPCB according to the present invention, and FIG. 7 It shows the configuration of the control unit of the roll lamination device for FPCB production according to the present invention. Figure 8 shows a flow chart of the FPCB manufacturing method using a roll lamination device for FPCB manufacturing according to the present invention, Figure 9 is a detail of the FCCL manufacturing step in the FPCB manufacturing method using the roll lamination device for FPCB manufacturing according to the present invention Fig. 10 shows a detailed view of the post-treatment step in the FPCB manufacturing method using the roll lamination device for FPCB manufacturing according to the present invention, and Fig. 11 is an FPCB using a roll lamination device for FPCB manufacturing according to the present invention. It shows a detailed diagram of the processing steps in the manufacturing method. 12 shows a schematic diagram of FCCL manufactured by the FCCL supply unit of the FPCB manufacturing apparatus including the roll lamination apparatus for manufacturing the FPCB according to the present invention, and FIG. 13 is supplied to the roll lamination apparatus for manufacturing the FPCB according to the present invention Fig. 14 shows a schematic diagram of an FPCB manufactured by an FPCB manufacturing apparatus including a roll lamination apparatus for manufacturing an FPCB according to the present invention. FIG. 15 is a roll lamination for manufacturing an FPCB according to the present invention. A cross-sectional photograph of the FPCB manufactured by the FPCB manufacturing apparatus including the apparatus is shown, and FIG. 16 shows a cross-sectional photograph of the FPCB manufactured in a state in which the coverlay is insufficient by a conventional hot press method. 17 shows a graph of temperature conditions of reflow for lead mounting of an FPCB manufactured by an FPCB manufacturing apparatus including a roll lamination apparatus for manufacturing an FPCB according to the present invention.

The definitions of terms used below are as follows. "Horizontal direction" means the horizontal direction in the same member, "vertical direction" means the vertical direction in the same member while being orthogonal to the horizontal direction, and "height direction" means the same member while being orthogonal to the horizontal direction and the vertical direction. Means the vertical direction. In addition, upward (upper) means a direction from "height direction" to an upward direction, and lower (lower) means a direction from "height direction" to a downward direction. In addition, "elevating (raising)" means moving in a direction upward in the height direction, and "lowering" means moving in a direction downward in the height direction. In addition, the inner side (inner) means the side relatively close to the center of the same member, that is, the inner inner side of each component unit or device, and the outer side refers to the side relatively far from the center of the same member, that is, the outer side of the component unit or device. it means.

A roll lamination apparatus 400 for manufacturing an FPCB according to the present invention and an FPCB manufacturing apparatus 1 including the same will be described with reference to FIGS. 1 to 7. The FPCB manufacturing apparatus 1 according to the present invention includes a housing unit 100, an FCCL supply unit 200, a coverlay supply unit 300, a roll lamination unit 400, a post-treatment unit 500, and a cutting unit 600. ), a processing unit 700, a control unit 800, and/or an inspection unit 900.

The housing unit 100 is formed of a metal or plastic material to form the outer shape of the FPCB manufacturing apparatus. Inside the housing unit 100, the FCCL supply unit 200, the coverlay supply unit 300, the roll lamination device 400, the post-treatment unit 500, the cutting unit 600, the processing unit 700, The control unit 800 and/or the inspection unit 900 are installed. In addition, when manufacturing the FPCB, the housing unit 100 may maintain a vacuum state or a standby state as necessary.

The FCCL supply unit 200 supplies FCCL to the roll lamination device in order to laminate the manufactured FCCL with the coverlay. 2, the FCCL supply unit 200 includes a dry film attachment part 210, an exposure part 220, a developing part 230, an etching part 240, a cleaning part 250, and an FCCL conveying part ( 260).

The dry film attachment part 210 attaches the dry film to the copper foil plate. That is, the dry film attachment part 210 cuts raw materials to form a substrate, and these raw materials are electro-deposited copper foil (ED) or roll annealed copper foil (RA). If necessary, these substrates can be plated with copper. In other words, the copper foil itself is too fragile and fragile, and solderability is poor when soldered. Therefore, plating of the exposed copper foil complements these characteristics. Plating may be mainly tin and lead alloy or gold plating. In this way, the dry film attachment part attaches the dry film to the plated copper plate.

The exposure unit 220 cures a certain portion of the portion to which the dry film attached by the dry film attachment unit is attached by a light source.

The developing unit 230 peels a portion not cured by the exposure unit through a developer solution from the dry film attachment unit. That is, the developing unit performs a function of dissolving and removing a portion cured by the exposed portion and an uncured portion of the portion to which the dry film is attached according to the circuit shape.

The etching unit 240 forms a circuit by etching a portion of which copper is exposed on a portion peeled off by the developing unit.

The cleaning unit 250 cleans the FCCL, which has been etched by the etching unit. This cleaning can be done through liquid or through air.

The FCCL transfer unit 260 transfers the cleaned FCCL to the roll lamination device 400 by the cleaning unit. The FCCL transfer unit 260 may be formed in the form of a robot device capable of transferring, a conveyor for transfer, and a roller. That is, the cleaned FCCL is stored in a rolled state, and can be supplied by transferring the FCCL to the roll lamination device by driving the rollers and the drive of the roll lamination device.

As shown in FIG. 12, the FCCL 20 that has been manufactured is formed of a metal foil 21, an adhesive 22, and a protective film 23. This metal foil is mainly formed of copper. The adhesive and the protective film are usually made of a polyimide material, the metal foil is provided by bonding with a predetermined circuit pattern on the upper surface of the adhesive, and the metal foil is provided by bonding with a predetermined circuit pattern on the upper surface of the base film.

As shown in FIG. 5, the coverlay supply unit 300 may include a coverlay transfer unit 310, a release film removal unit 320, and a release film recovery unit 330. That is, as shown in FIG. 13, the coverlay 30 is formed of a protective film 31, an adhesive 32, and a release film 33 (removed after completion of the subsidiary material). When the coverlay 30 formed of the protective film 31, the adhesive 32, and the release film 33 is wound on a roller, it is covered by the roll lamination device by driving the roller part and the driving part of the roll lamination device. The ray is conveyed by the coverlay conveying unit. That is, the coverlay transfer unit 310 performs a function of storing the coverlay in a roll form and supplying the coverlay to the roll lamination device by driving the rollers and the driving unit of the roll lamination device.

When the coverlay is supplied to the roll lamination device, the release film is removed by the release film removal unit 320, which is recovered through the release film recovery unit 330 again. In other words, just before the coverlay is introduced into the roll lamination device for FCCL and lamination while only the protective film and adhesive are left, the release film is peeled off the coverlay by the release film removal unit, and the peeled release film is removed from the release film. The rollers of the recovery part are driven and immediately recovered. Accordingly, as the release film is removed and recovered quickly and easily, it is possible to reduce the manufacturing time and cost of FPCB and maximize the convenience of the operator.

The FCCL 20 and the coverlay 30 passing through the roll lamination device are laminated by the upper roller part and the lower roller part to form the FPCB. That is, the FPCB of the shape as shown in FIG. 14 is formed. That is, the upper and lower portions are respectively protected by protective films (31 and 23), and are formed by filling with a metal foil 21 and an adhesive 22 and an adhesive 32 layer.

As shown in FIG. 6, the roll laminating device 400 includes a chamber part 410, a roller part 420, a tension control part 430, a driving part 440, a transfer part 450, an alignment part 460, and It includes a control unit 470.

The chamber part 410 forms the outer shape of the roll laminating device 400. The chamber part 410 may be formed of a metal material, a plastic material, or a composite material.

When the FCCL 20 and the coverlay 30 are laminated, the chamber unit 410 may maintain a standby state inside the chamber unit. Accordingly, it is possible to reduce the work preparation time and improve the productivity by easily changing the working conditions.

In addition, when the FCCL 20 and the coverlay 30 are laminated, the chamber unit 410 may maintain a vacuum state inside the chamber unit. Accordingly, it is possible to improve the quality and reliability of the product by securing the filling property of the coverlay in FCCL to reduce the occurrence rate of defective products.

The alignment unit 460 aligns the FCCL 20 and the coverlay 30 supplied into the chamber unit 410. That is, the alignment unit 460 inspects the alignment of the coverlay attached to the FCCL, and if it is not aligned correctly, aligns it to the correct position. Even after passing through the roller unit, the alignment unit 460 accurately cuts and after Align FCCL and coverlay positions for processing.

The roller unit 420 is installed inside the chamber unit 410 and laminates the FCCL and the coverlay aligned by the alignment unit. That is, the FCCL and the coverlay are laminated by the roller part by the roll laminating method instead of the hot press method.

The roller part 420 is installed under the upper roller part so as to face the upper roller part 421 and the upper roller part in the height direction to pressurize and heat the upper part of the FCCL and the coverlay to heat and pressurize the FCCL and the lower part of the coverlay. It includes a lower roller portion 422. That is, the upper roller part 421 is installed at a relatively upper part inside the chamber part to pressurize and heat the upper part of the FCCL and the coverlay, and the lower roller part 422 faces the upper roller part in the height direction inside the chamber part. It is installed to be located below the upper roller part to heat and pressurize the FCCL and the lower part of the coverlay. The upper and lower rollers that heat and press the upper and lower parts of the FCCL and the coverlay are heated and pressurized at high temperature and high pressure. In addition, the upper and lower roller parts that heat and press the upper and lower parts of the FCCL and the coverlay can heat and pressurize the upper and lower parts of the FCCL and the coverlay at the same temperature and pressure. When the lower roller unit heats and pressurizes the upper and lower portions of the FCCL and the coverlay, respectively, the temperature and pressure may be controlled by the control unit to be different from each other.

The upper roller part and the lower roller part of the roller part may be formed of the same material or different materials. In addition, the upper roller part and the lower roller part of the roller part may be formed of various materials. Preferably, the lower roller portion of the roller portion may be formed of steel, and the upper roller portion may be formed of silicon. Accordingly, it is possible to prevent the occurrence of defective products and improve quality by preventing the movement of FCCL and coverlay and wrinkles during laminating.

The tension control unit 430 adjusts the tension of the FCCL and the coverlay supplied into the chamber unit 410. In other words, as the tension of the FCCC and the coverlay, which are always supplied to the inside of the chamber part, is controlled by the tension control part, the wrinkles of the FCCC and the coverlay are prevented, minimizing the occurrence of defective products, maintaining uniform quality, and increasing the life of the product. I can make it.

The driving part 440 drives the roller part 420 formed of an upper roller part and a lower roller part. That is, the driving unit 440 generates power to rotate the upper and lower rollers. This driving unit may be formed of a motor or a servo motor. In addition, if necessary, the driving unit may rotate the upper roller unit and the lower roller unit at the same speed under the control of the control unit, but may rotate at different speeds.

The conveying part 450 conveys the roller part. The transfer unit may transfer the FCCL and the coverlay in a horizontal direction, a vertical direction, or a height direction in order to vary the position of heating and pressurizing the FCCL and the coverlay, or to adjust the strength of the pressurized pressure. That is, the transfer unit 450 includes a horizontal transfer unit 451, a vertical transfer unit 452, and an upward transfer unit 453.

The horizontal transfer unit 451 may interlock the upper roller unit and the lower roller unit through the control of the control unit to simultaneously transfer the upper roller unit and the lower roller unit in the horizontal direction, or may transfer the upper and lower roller units respectively in the horizontal direction.

The vertical transfer unit 452 may interlock with the upper roller unit and the lower roller unit through the control of the control unit to simultaneously transfer the upper roller unit and the lower roller unit in a vertical direction or may transfer the upper and lower roller units in a vertical direction, respectively.

The upper roller unit 453 may interlock with the upper roller unit and the lower roller unit through the control of the control unit to simultaneously transport the upper roller unit and the lower roller unit in the height direction or may transport the upper and lower roller units in the height direction, respectively.

The horizontal transfer unit, the vertical transfer unit, and the vertical transfer unit are configured in the form of a cylinder, a servo motor, a ball screw and a guide rail, or a rack pinion, and may be implemented by operation of a motor or cylinder under control of a control unit.

As shown in FIG. 7, the control unit 470 of the roll lamination device 400 includes a basic data storage unit 471, a location data storage unit 472, a pressure sensing unit 473, a temperature sensing unit 474, and an image. A sensing unit 475, a comparison unit 476, an analysis unit 477, a command unit 478, and a display unit 479 are included.

In addition, although not shown in the drawings, such a control unit includes an operation unit, and the operation unit includes a screen display program and a data input program according to screen display selection, and displays a software switch on the display screen according to the output of the screen display program. And, by recognizing the ON/OFF of the software switch, it performs the function of giving input/output commands for machine operation.

In addition, although not necessarily limited thereto, the operation unit is provided inside or on one side of the chamber unit and includes a monitor capable of displaying various function switches or buttons and various information.

The basic data storage unit 471 stores temperature, pressure, pressurization time, and heating time data of the upper and lower rollers for laminating the FCCL and the coverlay. It also stores information on the type and size of the FPCB to be manufactured. To input this, the basic data storage unit provides a Human-Machine Interface.

The position data storage unit 472 stores current position data of the upper roller unit and the lower roller unit transferred by the transfer unit.

Through the information stored in the basic data storage unit and the location data storage unit, the control unit precisely controls the roll-laminating device, maximizing reliability and stability, and rapidly manufacturing the FPCB.

The pressure sensing unit 473 senses the pressure of the upper and lower rollers when the upper and lower rollers press the FCCL and the upper and lower portions of the coverlay, respectively, and transmits a corresponding signal to the comparison unit. Such a pressure sensing unit may be formed of a pressure sensing sensor and may be installed on the upper roller unit and the lower roller unit, respectively.

The temperature sensing unit 474 senses the temperatures of the upper and lower rollers when the upper and lower rollers heat the upper and lower portions of the FCCL and the coverlay, respectively, and transmits a corresponding signal to the comparison unit. The temperature sensing unit may be formed of a temperature sensing sensor such as infrared light, and may be installed on the upper roller unit and the lower roller unit, respectively.

The image sensing unit 475 checks the temporary bonding state of the coverlay seated on the FCCL. That is, the image sensing unit is formed of a vision sensor such as a camera to check and detect whether the coverlay seated on the FCCL is seated at the correct position, and transmit the corresponding signal to the comparison unit. These image sensing units can be installed on the upper and lower rollers respectively, and the chamber unit is installed in the front or rear of the upper and lower rollers, or both, to continuously detect the shape or state of the FPCB to improve quality. You can plan.

The comparison unit 476 stores the current pressure and temperature of the upper and lower rollers received from the pressure sensing unit, the temperature sensing unit, and the image sensing unit, and data stored in the basic data storage unit. Compare. These comparison units include numerical control (NC) or computerized numerical control (CNC), and various numerical control programs are embedded. That is, various programs are embedded in the comparison unit, and the corresponding programs are automatically loaded and operated according to signals of the command unit. In addition, the comparison unit communicates with the control unit, PLC, drive unit, transfer unit, FCCL supply unit, coverlay supply unit, post-processing unit, cutting unit, and processing unit through a predetermined protocol.

The analysis unit 477 analyzes whether the FCCL and the coverlay currently laminated through the upper and lower roller units are normal or not according to the comparison result of the comparison unit. These analysis units also include numerical control (NC) or computerized numerical control (CNC), and various numerical control programs are built-in. That is, various programs are embedded in the analysis unit, and the corresponding programs are automatically loaded and operated according to signals of the command unit. In addition, the analysis unit communicates with the control unit, PLC, drive unit, transfer unit, FCCL supply unit, coverlay supply unit, post-processing unit, cutting unit, processing unit, and comparison unit by a predetermined protocol.

The command unit 478 transmits signals to the roller unit, the drive unit, the tension control unit, the transfer unit, and the alignment unit according to the analysis result of the analysis unit. In addition, the command unit communicates with the control unit, PLC, drive unit, transfer unit, roller unit, FCCL supply unit, coverlay supply unit, post-processing unit, cutting unit, processing unit, comparison unit, and analysis unit by a predetermined protocol. do.

The display unit 479 displays the comparison result of the basic data storage unit, the position data storage unit, the pressure sensing unit, the temperature sensing unit, the image sensing unit, the comparison unit, and the analysis result of the analysis unit. That is, all the states and various information of the currently manufactured FPCB manufacturing apparatus and roll lamination apparatus are displayed to notify the operator or user. Accordingly, it is possible to maximize the reliability and stability of the device by promoting the convenience of the operator, preventing accidents by promptly responding to emergency situations, and reducing the occurrence rate of defects.

The post-treatment unit 500 post-processes the FPCB formed by the roll lamination device 400.

As shown in FIG. 3, the post-treatment unit 500 includes a baking unit 510 for curing the FPCB formed by the roll lamination device through heat treatment, and a re-cleaning unit 520 for cleaning the FPCB thermally cured by the baking unit. , And a surface treatment unit 530 that performs surface treatment for preventing oxidation of the terminal portion of the FPCB cleaned by the recleaning unit.

The cutting unit 600 cuts the FPCB post-processed by the post-processing unit to a desired size and width.

The processing unit 700 processes the FPCB cut by the cutting unit.

As shown in Fig. 4, the processing unit 700 includes a punching unit 710 for forming a hole in the FPCB that has been cut by the cutting unit and a punching unit 720 for punching the FPCB in which holes are formed by the punching unit. do.

The control unit 800 controls an FCCL supply unit, a coverlay supply unit, a post-processing unit, a cutting unit, a processing unit, and an inspection unit. In addition, although not shown in the drawing, such a control unit includes a casting unit, and such a casting unit includes a screen display program and a data input program according to screen display selection, and software on the display screen according to the output of the screen display program. It displays the switch, recognizes the ON/OFF of the software switch, and issues input/output commands for machine operation.

In addition, although not necessarily limited thereto, the casting unit is installed inside or on one side of the housing unit and includes a monitor capable of displaying various function switches or buttons and various information. In addition, the control unit provides a human-machine interface for inputting and receiving various types of information, and includes a programmable logic controller (PLC). The control unit includes NC (numerical control, NC) or CNC (computerized numerical control), and various numerical control programs are built-in. That is, various programs are embedded in the control unit, and the corresponding programs are automatically loaded and operated according to the signals from the PLC. In addition, the control unit communicates with a supply unit, a coverlay supply unit, a post-processing unit, a cutting unit, a processing unit, an inspection unit, and a roll lamination device by a predetermined protocol.

The inspection unit 900 inspects the FPCB processed by the processing unit. Accordingly, product reliability and quality can be improved through selection of defective products.

The FPCB manufacturing method using roll lamination according to the present invention will be described with reference to FIGS. 8 to 11. As shown in Figures 8 to 11, the FPCB manufacturing method using roll lamination according to the present invention includes an FCCL manufacturing step (S1), a coverlay manufacturing step (S2), an FCCL and a coverlay supplying step (S3), a roll It includes a laminating step (S4), a post-processing step (S5), a cutting step (S6), a processing step (S7), and an inspection step (S8).

FCCL is manufactured in the FCCL supply unit. As shown in Figs. 9 and 2, the step of manufacturing FCCL (S1) includes a dry film attaching step (S1-1), an exposure step (S1-2), a developing step (S1-3), and an etching step (S1-4). , And a cleaning step (S1-5). In the dry film attaching step, the dry film is attached to the copper plate at the dry film attaching part 210. After the step of attaching (laminating) the dry film (S1-1), in the exposure unit 220, a desired portion of the dry film-attached portion of the copper thin plate to which the dry film is attached is cured and exposed by a light source. After the step of exposing (S1-2), the uncured portion of the developing unit 230 is dissolved with a developer at the dry film attachment portion and peeled off. After the developing step (S1-3), the portion where copper is exposed to the peeled portion from the etching portion 240 is etched and etched. After the etching step (S1-4), the cleaning unit 250 cleans the FCCL that has been etched. After the cleaning step (S1-5), the FCCL transfer unit 260, which has been cleaned, is transferred to the roll laminating device 400 to supply FCCL.

After the step of manufacturing FCCL (S1), a coverlay is manufactured. The manufactured coverlay is supplied to the roll lamination device by the coverlay supply unit 300. In the step of manufacturing the coverlay, the coverlay may be formed of a composition including epoxy, phenoxy, rubber resin, thermoplastic resin, curing agent, fast curing agent, inorganic particles, and flame retardant.

After the coverlay manufacturing step (S2), as described above, the FCCL and the coverlay are supplied by the FCCL transfer unit and the coverlay transfer unit to the roll lamination device.

After the step of supplying the FCCL and the coverlay (S3), the FCCL and the coverlay are laminated in the roll lamination device 400 by a roll lamination method. That is, in the step of laminating the roll (S4), the FCCL 20 and the coverlay 30 supplied to the inside of the chamber part 410 are transferred to the upper roller part 421 and the lower roller part 422 of the roller part 420. It is laminated by heating and pressing roll laminating method. The upper roller part and the lower roller part of the roller part may be formed of the same material or different materials. In addition, the upper roller part and the lower roller part of the roller part may be formed of various materials. Preferably, the lower roller portion of the roller portion may be formed of steel, and the upper roller portion may be formed of silicon. Accordingly, it is possible to prevent the occurrence of defective products and improve quality by preventing the movement of FCCL and coverlay and wrinkles during laminating.

In addition, when the FCCL and the coverlay are laminated in the roll laminating step (S4), the inside of the chamber unit may maintain a vacuum state or an atmospheric state. In other words, when work preparation time is reduced, work conditions are easy to change and productivity is improved, the standby state is maintained, and when the filling of the coverlay in FCCL is secured to reduce the occurrence rate of defective products, the quality and reliability of the product are improved. It can respond to various needs by maintaining a vacuum state.

After the roll-laminating step (S4), the laminated FPCB is post-processed. That is, the post-processing step (S5) post-processes the FPCB in the post-processing unit. As shown in FIGS. 10 and 3, the post-treatment step S5 includes a baking step S5-1, a re-cleaning step S5-2, and a surface treatment step S5-3. In the baking part 510, the FPCB is hardened through heat treatment. After the baking step (S5-1), the FPCB heat-treated by the re-cleaning unit 520 is cleaned and re-cleaned. After the re-cleaning step (S5-2), surface treatment is performed to prevent oxidation of the terminal portion of the FPCB that has been re-cleaned by the surface treatment unit 530.

After this detailed post-processing step (S5), the cutting unit 600 cuts the FPCB post-processed by the post-processing unit to a desired size and width.

After the cutting step (S6), the FPCB cut in the processing unit 700 is processed. As shown in FIGS. 11 and 4, the processing step S7 includes a punching step S7-1 and a punching step S7-2. A hole is formed in the FPCB that has been cut by the punching part 710. After the punching step (S7-1), the FPCB with holes formed in the punching portion 720 is punched out.

After the processing step (S7), the inspection unit 900 inspects the FPCB processed by the processing unit. Accordingly, product reliability and quality can be improved through selection of defective products.

The coverlay composition for manufacturing FPCB using roll lamination should exhibit good flowability at a specific temperature and must be well filled in the lamination process through roll lamination. In addition, it should be suitable for hardening in the heat treatment process after filling, it should have a stable blending after hardening, and should have flame retardancy. Therefore, the coverlay made of the composition of the present invention is excellent in heat resistance, filling, flame retardancy, blendability, and flowability, and can mitigate brittleness due to curing and minimize the occurrence of lift without disturbing flow during curing. have.

As shown in FIGS. 12 to 17, the coverlay composition for manufacturing FPCB using roll lamination may include epoxy, phenoxy, rubber resin, thermoplastic resin, curing agent, fast curing agent, inorganic particles, and flame retardant.

The epoxy of the coverlay composition for FPCB production using roll lamination is bisphenol A epoxy, bisphenol F epoxy, hydrogenated epoxy, novolac epoxy, Biphenyl epoxy (Biphenyl Epoxy), and may be any one or more selected from flame retardant epoxy (Brominated Epoxy), but is not limited thereto.

The coverlay composition for manufacturing FPCB using roll lamination may contain 50 to 90% by weight of phenoxy based on the total weight of the epoxy. Such phenoxy may be formed of phenoxy having a molecular weight of 10,000 or more, but is not limited thereto. If the phenoxy is less than 50% by weight of the total weight of the epoxy, the filling property is weak and the product is not filled as shown in FIG. 16, resulting in product defects, and the brittleness of the epoxy causes a problem of being damaged during curing or moving. . In addition, when the phenoxy content exceeds 90% by weight relative to the total weight of the epoxy, there is a problem of deterioration in quality due to a product defect as shown in FIG.

In addition, the coverlay composition for manufacturing FPCB using roll lamination may include 10 to 80% by weight of a rubber resin based on the total weight of the epoxy.

The rubber resin of the coverlay composition for manufacturing FPCB using roll lamination is a carboxyl nitrile rubber (XNBR), nitrile butadiene rubber (NBR), butadiene rubber (BR), hydrated nitrile butadiene rubber (HNBR), and carboxyl-terminated It may be any one or more selected from the butadiene acrylonitrile (CTBN), but is not limited thereto. If the rubber resin is less than 10% by weight of the total weight of the epoxy, as the adhesive strength decreases, the filling property becomes weak and the lead heat resistance becomes weak, and as shown in FIG. 16, the occurrence rate of defective products increases as the product becomes unfilled. In addition, when the rubber resin exceeds 80% by weight of the total weight of the epoxy, the adhesion is improved, but the flow of the thermoplastic resin is obstructed and the filling property is lowered, resulting in lift, resulting in product defects as shown in FIG. A problem arises.

In another preferred embodiment of the coverlay composition for manufacturing FPCB using roll lamination, the coverlay composition for manufacturing FPCB using roll lamination may have a ratio of a curing agent and a fast curing agent of 1: 0.8 to 1.8 or less. That is, the fast curing agent may be contained in an amount of 0.8 to 1.8 times when the curing agent is 1. If the ratio of the curing agent and the fast curing agent is less than 1:0.8, filling is performed, but lifting occurs in the baking step, resulting in product defects as shown in FIG. 5 of the product, resulting in a problem of deteriorating quality. In addition, when the ratio of the curing agent and the fast curing agent is greater than 1:1.8, curing occurs too quickly during filling, obstructing the flow, resulting in insufficient filling, resulting in a problem of deteriorating durability.

The curing agent of the coverlay composition for manufacturing the FPCB using such roll lamination may be any one or more selected from an amine-based curing agent, a phenolic curing agent, and an imidazole-based curing agent, but is not limited thereto.

In addition, the fast curing agent of the coverlay composition for manufacturing the FPCB using such roll lamination may be a cycloaliphatic modified amine curing agent, but is not limited thereto.

The coverlay composition for manufacturing FPCB using roll lamination may be a polyester resin having a glass transition temperature (Tg) of 10°C or more to 120°C or less, but is not limited thereto. If there is too little thermoplastic resin or the glass transition temperature is less than 10℃, the flowability decreases. If there are too many thermoplastic resins or the glass transition temperature is more than 120℃, filling is well done, but lead heat resistance is significantly reduced. There is a problem.

The coverlay composition for manufacturing FPCB using roll lamination may include 10 to 60% by weight of inorganic particles based on the total weight of the epoxy. The inorganic particles of the coverlay composition for manufacturing FPCB using roll lamination may be any one or more selected from titanium oxide, talc, aluminum trihydroxide, alumina, and magnesium hydroxide, but is not limited thereto. If the coverlay composition for FPCB production is less than 10% by weight of inorganic particles relative to the total weight of the epoxy, lead heat resistance decreases, and the adhesive strength decreases, resulting in deterioration of quality due to peeling. In addition, when the coverlay composition for manufacturing the FPCB exceeds 60% by weight of the inorganic particles relative to the total weight of the epoxy, there is a problem that lift occurs.

The coverlay composition for manufacturing FPCB using roll lamination may include 10 to 60% by weight of a flame retardant based on the total weight of the epoxy. The flame retardant of the coverlay composition for manufacturing FPCB using such roll lamination may be any one or more selected from phosphorus-based flame retardants, nitrogen-based flame retardants, and inorganic flame retardants, but is not limited thereto. If the coverlay composition for FPCB production using roll lamination is less than 10% by weight of the flame retardant relative to the total weight of the epoxy, there is a problem that it does not become flame retardant. In addition, when the coverlay composition for manufacturing the FPCB using roll lamination exceeds 60% by weight of the flame retardant relative to the total weight of the epoxy, there is a problem in that adhesion and heat resistance are decreased.

In the coverlay supply unit and the coverlay manufacturing step, the coverlay may be manufactured from the above-described coverlay composition. The adhesion of the coverlay may be 0.5 kgf/cm or more and 2.0 kgf/cm or less, but is not limited thereto. The coverlay having the above composition has no change in filling after lamination and baking through roll lamination of the coverlay and FCCL. That is, as shown in FIG. 6, an FPCB having excellent quality is manufactured through sufficient filling, heat resistance, flame retardancy, and blendability.

In addition, as shown in FIG. 17, the reflow of the coverlay proceeds in a range of 10 seconds or more to 100 seconds or less at 130 degrees or more and 350 degrees or less. Reloow to mount lead in FPCB should not be lifted after reflow. For this, the operation is performed in a graph as shown in FIG. 4, and in order to reduce manufacturing time and cost, and improve quality, it is most effective to perform it in the range of 30 seconds to 60 seconds at 240 degrees or more and 280 degrees or less.

1. Preparation of coverlay composition for manufacturing FPCB using roll lamination

By mixing according to the composition in the following table to prepare a coverlay composition for FPCB production using roll lamination.

ingredient
Example 1
Example 2
Comparative Example 1
Comparative Example 2
Comparative Example 3
Comparative Example 4
Comparative Example 5
Comparative Example 6
Comparative Example 7
Comparative Example 8
Epoxy
100
100
100
100
100
100
100
100
100
100
Phenoxy
-
80
-
-
-
-
-
-
-
-
Rubber resin
50
-
50
50
50
50
35
70
50
50
Thermoplastic resin
5
5
5
5
One
10
5
5
5
5
Hardener
One
One
One
One
One
One
One
One
One
One
Fast curing agent
One
One
0
2
One
One
One
One
One
One
Inorganic particles
30
30
30
30
30
30
30
30
20
30
Flame retardant
30
30
30
30
30
30
30
30
30
40

2. Evaluation of the properties of the coverlay composition according to the present invention

Filling properties (after roll lamination/after baking), lead heat resistance (reflow), adhesion, and flame retardancy of the coverlay composition for manufacturing FPCB using roll lamination using a conventional method with the composition prepared above were evaluated. The evaluation results are shown in Table 2 below.

ingredient
Example 1
Example 2
Comparative Example 1
Comparative Example 2
Comparative Example 3
Comparative Example 4
Comparative Example 5
Comparative Example 6
Comparative Example 7
Comparative Example 8
insect
true
castle
After roll laminating
O
O
O
X
X
O
O
X
O
O
After baking
O
O
X
X
X
O
O
X
O
O
Lead heat resistance
(or reflow)
O
O
O
O
O
X
X
O
X
X
Adhesion
(kgf/cm)
1.05
0.89
1.01
0.99
1.02
1.03
0.67
1.51
0.79
0.65
Flame Retardant
O
O
O
O
O
O
O
O
O
O

As a result of the experiment, it was confirmed that Example 1 was the most ideal formulation, and the total amount of rubber resin and inorganic particles was the most preferable, and Example 2 also showed excellent filling properties, lead heat resistance, miscellaneous repellency, and flame retardancy. In contrast, in Comparative Example 1, if curing is not achieved by an appropriate fast-curing agent while filling without a fast-curing agent, filling is possible, but lifting occurs in the baking process, and in Comparative Example 2, when there is too much fast-curing agent, filling while curing It was confirmed that the flow was rather obstructed, resulting in poor filling.

In addition, it was confirmed that in Comparative Example 3, when there are few thermoplastic resins, the flowability is lowered, and in Comparative Example 4, when there are many thermoplastic resins, the flowability is good and filling is well performed, but lead heat resistance is significantly reduced.

In addition, it was confirmed that in Comparative Example 5, when the amount of rubber resin was low, the adhesive strength was decreased and the lead heat resistance was also weak, and in Comparative Example 6, when the amount of rubber resin was large, the adhesive strength was improved, but it was confirmed that the filling property was poor by interfering with flow of the thermoplastic resin.

In addition, in Comparative Example 7, when the amount of inorganic particles decreases, lead heat resistance decreases and adhesion strength decreases. In Comparative Example 8, it was confirmed that adhesion strength and heat resistance decrease when the flame retardant increases.

In the detailed description of the present invention described above, it has been described with reference to preferred embodiments of the present invention, but those skilled in the art or those of ordinary skill in the relevant technical field of the present invention described in the claims to be described later It will be understood that various modifications and changes can be made to the present invention without departing from the spirit and technical scope. Therefore, the technical scope of the present invention should not be limited to the content described in the detailed description of the specification, but should be determined by the claims.

1: FPCB manufacturing device, 100: housing unit,
200: FCCL supply unit, 300: coverlay supply unit,
400: roll lamination device, 500: post-treatment unit,
600: cutting unit, 700: processing unit,
800: control unit, 900: inspection unit.

Claims (26)

Chamber part;
An alignment unit for aligning the FCCL supplied into the chamber unit and the coverlay;
A roller part for laminating the aligned FCCL and the coverlay; And
Roll lamination apparatus for manufacturing an FPCB comprising; a driving unit for driving the roller unit.
An alignment unit for aligning the supplied FCCL and the coverlay;
A roller part for laminating the aligned FCCL and the coverlay;
A driving unit driving the roller unit; And
A roll lamination device for manufacturing an FPCB comprising a; a transfer unit for transferring the roller unit.
An alignment unit for aligning the supplied FCCL and the coverlay;
A roller part for laminating the aligned FCCL and the coverlay;
A tension control unit for adjusting tension of the supplied FCCL and the supplied coverlay; And
Roll lamination apparatus for manufacturing an FPCB comprising; a driving unit for driving the roller unit.
An alignment unit for aligning the supplied FCCL and the coverlay;
A roller part for laminating the aligned FCCL and the coverlay;
A driving unit driving the roller unit; And
A roll lamination device for manufacturing an FPCB, comprising: a control unit.
The method according to any one of claims 1 to 4,
When laminating the FCCL and the coverlay, the inside of the chamber unit maintains a standby state.
The method according to any one of claims 1 to 4,
When laminating the FCCL and the coverlay, the inside of the chamber unit maintains a vacuum state.
The method of claim 5 or 6,
The roller part,
An upper roller part for heating and pressing the upper part of the FCCL and the coverlay; And
And a lower roller part installed under the upper roller part so as to face the upper roller part in a height direction to heat and pressurize the FCCL and the lower part of the coverlay. 2. A roll lamination apparatus for manufacturing an FPCB, comprising: a.
The method of claim 7,
Roll lamination apparatus for manufacturing an FPCB, characterized in that the lower roller part is formed of steel.
The method of claim 8,
Roll lamination apparatus for manufacturing an FPCB, characterized in that the upper roller part is formed of silicon.
The method of claim 9,
The transfer unit,
And a horizontal transfer unit for interlocking the upper roller unit and the lower roller unit to transport in a horizontal direction or for transporting each in a horizontal direction.
The method of claim 10,
The transfer unit,
A roll lamination apparatus for manufacturing an FPCB, further comprising: a vertical transfer unit for transferring the upper roller unit and the lower roller unit in a vertical direction by interlocking with each other or transferring each in a vertical direction.
The method of claim 11,
The transfer unit,
A roll lamination apparatus for manufacturing an FPCB, further comprising: an upper roller part and an upward conveying part for transferring in a height direction by interlocking with the lower roller part or transferring each in a height direction.
The method of claim 12,
The control unit,
A basic data storage unit for storing temperature, pressure, pressurization time, and heating time data of the upper and lower rollers to laminate the FCCL and the coverlay;
A position data storage unit for storing current position data of the upper roller unit and the lower roller unit; And
And a pressure sensing unit that senses the pressure of the upper roller unit and the lower roller unit.
The method of claim 13,
The control unit,
A roll lamination device for manufacturing an FPCB, further comprising: a temperature sensing unit for sensing temperatures of the upper roller unit and the lower roller unit.
The method of claim 14,
The control unit,
Roll lamination apparatus for manufacturing an FPCB, characterized in that it further comprises a; image sensing unit for checking the temporary bonding state of the coverlay seated on the FCCL.
The method of claim 15,
The control unit,
The current pressure and temperature of the upper and lower rollers received from the pressure sensing unit, the temperature sensing unit, and the image sensing unit, and data stored in the basic data storage unit A comparison unit for comparing; Roll lamination apparatus for manufacturing an FPCB further comprising a.
The method of claim 16,
The control unit,
An analysis unit for analyzing the normality of the FCCL and the coverlay currently laminated through the upper roller unit and the lower roller unit according to the comparison result of the comparison unit; Roll lamination apparatus for manufacturing an FPCB, characterized in that it further comprises .
The method of claim 17,
The control unit,
And a command unit for transmitting signals to the roller unit, the driving unit, the tension control unit, the transfer unit, and the alignment unit according to the analysis result of the analysis unit.
The method of claim 18,
The control unit,
And a display unit for displaying a comparison result of the basic data storage unit, the location data storage unit, the pressure sensing unit, the temperature sensing unit, the image sensing unit, the comparison unit, and an analysis result of the analysis unit. Roll lamination device for manufacturing FPCB.
A roll lamination device for manufacturing an FPCB according to any one of claims 1 to 19;
Housing unit;
An FCCL supply unit forming FCCL and supplying it to the rolling device;
A coverlay supply unit for forming a coverlay and supplying it to the rolling device;
A post-treatment unit for post-treating the FPCB formed by the roll lamination device by the post-treatment unit; And
FPCB manufacturing apparatus comprising a; cutting unit for cutting the post-processed FPCB.
A roll lamination device for manufacturing an FPCB according to any one of claims 1 to 19;
An FCCL supply unit forming FCCL and supplying it to the rolling device;
A coverlay supply unit for forming a coverlay and supplying it to the rolling device;
A post-treatment unit for post-treating the FPCB formed by the roll lamination device;
A cutting unit for cutting the FPCB post-processed by the post-processing unit; And
FPCB manufacturing apparatus comprising; a control unit for controlling the FCCL supply unit, the coverlay supply unit, the post-treatment unit, and the cutting unit.
The method of claim 20 or 21,
FPCB manufacturing apparatus comprising a; processing unit for processing the FPCB cut by the cutting unit.
The method of claim 22,
The FCCL supply unit,
A dry film attachment portion to attach the dry film;
An exposure unit for curing a certain portion of a portion to which the dry film attached by the dry film attachment unit is attached by a light source;
A developing unit that peels off a portion not cured by the exposure unit from the dry film attachment unit;
An etching portion for etching a portion of which copper is exposed to a portion peeled off by the developing portion;
A cleaning unit for cleaning the FCCL, which has been etched by the etching unit; And
FPCB manufacturing apparatus comprising a; FCCL transfer unit for transferring the FCCL cleaned by the cleaning unit to the roll lamination device.
The method of claim 23,
The post-treatment unit,
A baking unit for curing the FPCB formed by the roll lamination device through heat treatment;
A re-cleaning unit for cleaning the FPCB heat-cured by the baking unit; And
And a surface treatment unit for performing a surface treatment for preventing oxidation of the terminal portion of the FPCB cleaned by the recleaning unit.
The method of claim 24,
The processing unit,
A punching unit for forming a hole in the FPCB on which the cutting is completed by the cutting unit; And
FPCB manufacturing apparatus comprising a; punching portion for punching out the FPCB having holes formed by the punching portion.
The method of claim 25,
FPCB manufacturing apparatus further comprising a; inspection unit for inspecting the FPCB processed by the processing unit.

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