KR200338553Y1 - LPR spreading device for manufacturing FPCB - Google Patents

Abstract

The upper roller (1) having a fine valley (11) formed on the surface and the copper foil film (13) is installed at regular intervals at the lower portion of the upper roller (1) to pass through the fine valley ( A lower roller 2 having a 21 formed thereon, an upper cam 3 and a lower cam 4 installed on the side surfaces of the upper roller 1 and the lower roller 2, respectively, to generate vibration; The liquid photoconductor is applied to the upper motor 5 and the lower motor 6 and the upper roller 1 and the lower roller 2 for applying rotational power to the upper cam 3 and the lower cam 4, respectively. An upper nozzle 9 and a lower nozzle 10 for supplying, and a pump 11 for supplying the liquid photoconductor stored in the tank 12 to the upper nozzle 9 and the lower nozzle 10 described above. Is done by

Flexible printed circuit board can be applied to flexible printed circuit boards using copper foil film that is soft in material and has no flatness. Since it is relatively inexpensive, it can lower manufacturing costs and form relatively finer patterns. Provided is a liquid photoconductor coating apparatus for substrate production.

Description

Liquid photoconductor coating device for flexible printed circuit board manufacturing {LPR spreading device for manufacturing FPCB}

The present invention relates to the field of flexible printed circuit boards, and more specifically, it can be applied to flexible printed circuit boards using copper foil films that are soft and have no flatness. At the same time, the present invention relates to a liquid photoconductor coating apparatus for manufacturing a flexible printed circuit board, which can form a relatively finer pattern.

Flexible printed circuit boards (FPCBs), which have become the core of electronic components according to the trend of miniaturization and light weight of electronic products, have recently been spotlighted for their heat resistance, bending resistance, and chemical resistance.

In order to manufacture a flexible printed circuit board, a copper foil film (CCL) is cut into sheets and sheeted, and then a photosensitive film (Dry Film Resistor, DFR) is laminated for each copper foil film sheet, followed by exposure, development, and etching. It is manufactured by forming a circuit pattern through a process such as peeling, washing, or the like.

However, the photosensitive film used in such a conventional flexible printed circuit board manufacturing process is not applicable to the production of fine patterns for high density of circuits.

In order to manufacture a fine pattern for the high density of the circuit, a liquid photoresist (LPR), which is not a film form, is partially applied to a rigid printed circuit board, and the liquid photoreceptor has excellent adhesion. And because of its excellent resolution, it has an advantage in forming a fine pattern.

In general, the liquid photoconductor is applied to a rigid printed circuit board using a liquid photoconductor coating apparatus such as a spin coater, a roll coater, or the like.

However, such a conventional liquid photoconductor coating device has to be relatively hard and flatness is secured, such as a rigid printed circuit board. There is a problem that cannot be applied.

In addition, the conventional liquid photoconductor coating apparatus is relatively expensive, there is a problem that increases the manufacturing cost.

In addition, the conventional liquid photoconductor coating apparatus has a problem that the coating thickness is less than 10um to form a relatively finer pattern.

The object of the present invention is to solve such a conventional problem, and can be applied to a flexible printed circuit board using a copper foil film which is soft in material and does not have flatness. At the same time, to provide a liquid photoconductor coating apparatus for manufacturing a flexible printed circuit board, which can form a relatively finer pattern.

1 is a perspective configuration diagram of a liquid photoconductor coating apparatus for manufacturing a flexible printed circuit board according to an embodiment of the present invention.

2 is a front configuration diagram of a liquid photoconductor coating apparatus for manufacturing a flexible printed circuit board according to an embodiment of the present invention.

3 is a side configuration diagram of a liquid photoconductor coating apparatus for manufacturing a flexible printed circuit board according to an embodiment of the present invention.

Explanation of symbols on the main parts of the drawings

1: upper roller 2: lower roller

3: upper cam 4: lower cam

5: upper motor 6: lower motor

7: upper spring 8: lower spring

9: upper nozzle 10: lower nozzle

11: pump 12: tank

DETAILED DESCRIPTION Hereinafter, the most preferred embodiments of the present invention will be described in detail with reference to the accompanying drawings so that those skilled in the art can easily implement the present invention. . Other objects, features, and operational advantages, including the purpose, operation, and effect of the present invention, will become more apparent from the description of the preferred embodiment.

For reference, the embodiments disclosed herein are only presented by selecting the most preferred embodiment from among the various possible examples to help those skilled in the art to understand, the technical spirit of the present invention is not necessarily limited or limited only by this embodiment In addition, various changes, additions and changes are possible within the scope without departing from the technical spirit of the present invention, as well as other embodiments that are equally clear.

The structure of the liquid photoconductor coating apparatus for manufacturing a flexible printed circuit board according to an embodiment of the present invention, as shown in Figures 1 to 3, and the upper roller (1) having a fine valley 11 is formed on the surface; The lower roller 2 is installed at a lower portion of the upper roller 1 so that the copper foil film 13 can pass therethrough and has a fine valley 21 formed on the surface thereof. Rotational power is applied to the upper cam 3 and the lower cam 4 and the upper cam 3 and the lower cam 4, respectively, which are installed on the side surfaces of the 1 and lower rollers 2 to generate vibrations. An upper motor 5 and a lower motor 6 for application, an upper nozzle 9 and a lower nozzle 10 for supplying a liquid photoconductor to the upper roller 1 and the lower roller 2, and a tank Supplying the liquid photoconductor stored in (12) to the upper nozzle 9 and the lower nozzle 10 described above It comprises a pump 11 for.

It is more preferable that the constitution of the present invention further includes an upper spring 7 and a lower spring 8 installed on the side of the upper roller 1 and the lower roller 2 to flexibly generate vibration. Do.

According to the above configuration, the operation of the liquid photoconductor coating apparatus for manufacturing a flexible printed circuit board according to an embodiment of the present invention is as follows.

First, before the upper roller 1 and the lower roller 2 operate, the liquid photoconductor stored in the tank 12 by the operation of the pump 11 opens the upper nozzle 9 and the lower nozzle 10. By spraying toward the upper roller 1 and the lower roller 2 through the liquid photosensitive member soaks evenly between the valleys (11, 21) formed on the surface of the upper roller (1) and the lower roller (2).

Subsequently, the copper foil film 13 is supplied to the space formed between the upper roller 1 and the lower roller 2, and at the same time, the upper roller 1 and the lower roller 2 operate to operate the copper foil film 13. This is advanced.

When the copper foil film 13 is advanced in this manner, the upper cam 3 and the lower cam 4 provided on the side of the upper roller 1 and the lower roller 2 are respectively the upper motor 5 and the lower motor. By operating by driving of (6), the upper roller 1 and the lower roller 2 vibrate.

In this case, the upper spring 7 and the lower spring 8, which are provided on the sides of the upper roller 1 and the lower roller 2, respectively, are operated with the operation of the upper cam 3 and the lower cam 4 described above. By interlocking, the vibration of the upper roller 1 and the lower roller 2 is made more flexible.

When the upper roller 1 and the lower roller 2 vibrate as described above, the material being supplied between the upper roller 1 and the lower roller 2 is soft and has no flatness. On the surface of 13), the liquid photoconductor is applied uniformly and thinly.

At this time, the size of the bone (11, 21) formed on the surface of the upper roller (1) and the lower roller (2) to control the amount and pressure of the liquid photosensitive member is applied.

Meanwhile, the copper foil film 13 coated with the liquid photoconductor while passing through the upper roller 1 and the lower roller 2 is dried while passing through a drying tank (not shown), and then proceeds to the next process. do.

As discussed in the above embodiments, this design can be applied to flexible printed circuit boards using copper foil films that are soft and have no flatness, and are relatively inexpensive, thereby lowering manufacturing costs and being relatively low. It has an effect that can form a finer pattern.

Claims (2)

An upper roller 1 having fine valleys 11 formed on its surface, The lower roller 2 is installed at a lower portion of the upper roller 1 so that the copper foil film 13 can pass therethrough and has a fine valley 21 formed on the surface thereof. An upper cam 3 and a lower cam 4 installed on the side surfaces of the upper roller 1 and the lower roller 2 to generate vibrations; An upper motor 5 and a lower motor 6 for applying rotational power to the upper cam 3 and the lower cam 4, respectively; An upper nozzle 9 and a lower nozzle 10 for supplying a liquid photosensitive member to the upper roller 1 and the lower roller 2; And a pump (11) for supplying the liquid photoconductor stored in the tank (12) to the upper nozzle (9) and the lower nozzle (10). According to claim 1, characterized in that it further comprises an upper spring (7) and a lower spring (8) installed on the side of the upper roller (1) and the lower roller (2), respectively, to flexibly generate vibrations. Apparatus for applying a liquid photosensitive member for manufacturing a flexible printed circuit board.