JP2000158581A - Apparatus for supplying laminated plate - Google Patents

Abstract

PROBLEM TO BE SOLVED: To prevent the generation of cracking in the insulating part of a laminated plate by forming the laminating plate fed from a winder to be supplied after being re-warped as a method for supplying the laminated plate. SOLUTION: When a metal foil-clad laminated plate 10 is fed/supplied continuously from a winder 12, in the surface of the laminated plate 10 fed out from the winder 12, a roll 20 is pressed/contacted to/with a surface which was on the outside of the winder 12. The laminated plate 10 fed from the winder 12 after being re-warped continuously to be a plane, is held between conveying rolls 28 and conveyed to be supplied outside a supply apparatus. In this way, in the working process of a printed-wiring board, the generation of troubles such as catching and the generation of cracking in the insulating part of the laminated plate 10 are prevented.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an apparatus for feeding a laminated board, which unwinds and supplies a wound metal foil-clad laminate.

[0002]

2. Description of the Related Art Conventionally, a metal foil-clad laminate used in the manufacture of a printed wiring board is generally manufactured by a batch method, and a resin composition is applied to a substrate such as a glass cloth having a void inside or on the surface. The required number of prepregs produced by impregnation are stacked and the metal foils are stacked on both sides of the prepregs. Although it is manufactured by a molding method, in recent years, a method of continuously performing from impregnation to molding to continuously obtain a laminate has been studied and implemented.

As a method of continuously producing the resin, as shown in FIG. 4, for example, a required number of resin-impregnated substrates 32 in which a continuously supplied substrate 30 is impregnated with a resin composition 31 is provided.
And the continuously supplied metal foil 33 are laminated such that the metal foils 33 are disposed on both surface layers thereof, and then the laminate is pressure-bonded with a laminating roll 34, and then the pressed pressure-bonded material is pulled out. While pulling and proceeding with a roll,
After being cured by heating in a heat curing furnace 35, a cutter 36
In this method, a laminate is continuously manufactured by continuously performing each of these steps. In addition, as the resin composition 31 used in this method, a resin composition 31 containing a radical polymerization type thermosetting resin is generally used.

In recent years, it has been studied to reduce the cutting loss when manufacturing printed wiring boards of various sizes by supplying a laminated board in a wound state without cutting it into a predetermined size. In addition, a supply device for unwinding and supplying a laminate from a wound product obtained by winding the laminate has been studied.

[0005] However, when a printed wiring board is to be manufactured using the laminated board unwound from the wound product, the laminated board tends to be plastically deformed into a curved shape due to plastic deformation to a shape when wound up. The problem that problems such as catching may occur in the processing process of the above, and if the finished printed wiring board is warped to flatten it, cracks may occur in the insulating part of the laminate, There is a problem that reliability may be reduced.
For this reason, there is a demand for a laminate supply apparatus which is less likely to cause troubles in the process of processing the printed wiring board and is less likely to cause cracks in the insulating portion of the laminate.

[0006]

SUMMARY OF THE INVENTION The present invention has been made to solve the above-mentioned problems, and an object of the present invention is to obtain a metal foil-clad laminate from a rolled metal foil-clad laminate. To provide a laminated board supply apparatus which unwinds and continuously supplies the laminated board, which is less likely to cause troubles in a process of processing a printed wiring board, and is less likely to cause cracks in an insulating portion of the laminated board. It is in.

[0007]

According to a first aspect of the present invention, there is provided an apparatus for supplying a laminate, comprising a resin-impregnated base material in which a base material is impregnated with a thermosetting resin composition and a metal foil. After laminating so that the metal foil is arranged, from the roll of the metal foil-clad laminate manufactured by curing and curing the thermosetting resin composition, unwind the metal foil-clad laminate and continuously The method for supplying a laminate is characterized in that the laminate is unwound from a roll and is continuously re-warped and then supplied.

According to a second aspect of the present invention, there is provided the laminated sheet feeding apparatus according to the first aspect, wherein the method for performing the warping is performed on the outside of the wound material on the surface of the laminated sheet. The method is characterized by a method in which a roll is brought into pressure contact with an existing surface.

According to a third aspect of the present invention, there is provided the laminated sheet supply apparatus according to the first or second aspect, wherein the number of the resin-impregnated base materials to be laminated is one, and The thickness of the substrate is 0.02 to 0.08 mm.

According to a fourth aspect of the present invention, there is provided the laminate supplying apparatus according to any one of the first to third aspects, wherein the thermosetting resin composition comprises a radical polymerization type thermosetting resin. It is a resin composition containing a curable resin.

[0011]

BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a perspective view showing a laminated sheet supply apparatus according to the present invention. FIG. 1 is a diagram illustrating an embodiment of a laminated plate supply device according to the present invention, and FIG. 2 is a diagram illustrating another embodiment of a laminated plate supply device according to the present invention. FIG. 3 is a view for explaining a method of manufacturing a laminate supplied by the laminate supply apparatus according to the present invention.

An embodiment of the apparatus for supplying a laminate according to the present invention is shown in FIG. 1 in which a metal foil-clad laminate 10 is unwound from a roll 12 of a metal foil-clad laminate 10 to continuously unwind it. This is a supply device for a laminated plate to be supplied. In addition, the supply device for the laminated plate is a laminated plate 10 unwound from a roll 12.
Of the roll 2 on the surface outside the roll 12
0 is formed so as to be in pressure contact, and after the laminated plate 10 unwound from the winding material 12 is continuously warped and flattened, and then conveyed by being sandwiched by the conveying rolls 28, It is formed so as to supply outside the supply device.

For this reason, the laminate 10 supplied from the supply device is substantially planarized, so that troubles such as catching in the process of processing the printed wiring board are less likely to occur. In addition, since the metal foil-clad laminate 10 is warped again, it is difficult for cracks to occur due to concentration of the warping stress on the insulating portion of the laminate 10, and the laminate 1
Cracks are less likely to occur in the 0 insulating portion. In addition,
When processing a printed wiring board using a curved laminated board supplied without re-warping as in the conventional case, when the metal foil on the surface is partially etched, the part where the insulating part is exposed is almost Although flattened, the remaining portion of the metal foil remains curved. Therefore, if the warped portion is re-warped to flatten the curved portion, the re-warping stress is concentrated on the insulating portion of the laminate, and cracks are likely to occur in the portion.

The degree of pressurizing the roll 20 to press the roll 20 against the outer surface of the wound material 12 depends on the degree of the curved state of the laminate 10 and the thickness of the laminate 10. What is necessary is just to adjust so that the board 10 may become substantially planar. When the roll 20 is a roll or a free roll that rotates at the same speed in the same direction as the traveling direction of the laminate 10, scratches and wrinkles are less likely to occur on the metal foil on the surface of the laminate 10, which is preferable.

The method for performing the warping is not limited to the above-described method. For example, as shown in FIG. Alternatively, a method of applying a stress alternately to the front and back to perform warping again may be used. As shown in FIG. 1, when the roll 20 is formed to press the roll 20 toward the laminate 10 by rotating the support 23 with the fixed shaft 22 as a fulcrum, , Reel 1
In order to easily adjust the pressure when the roll 20 is brought into pressure contact with the outer surface of the laminate 2, the roll 20 may be supplied to the rolled material 12 of the laminated board 10 having a significantly different amount of warpage, or may have a different thickness. In the case of switching and supplying the material to the rolled material 12 of the laminated plate 10, it is preferable because the adjustment can be easily performed and the switching can be performed.

The laminate 10 supplied by the laminate supply apparatus of the present invention has a resin-impregnated base material impregnated with a thermosetting resin composition and a metal foil, and a metal foil is disposed on both surface layers thereof. This is a metal-foil-clad laminate 10 manufactured by curing the thermosetting resin composition after lamination in such a manner. This laminated board 1
As a specific production method of the resin composition 3, for example, as shown in FIG.
After laminating a required number of resin-impregnated base materials 32 impregnated with 1 and a metal foil 33 continuously supplied so that the metal foils 33 are disposed on both surface layers thereof, the laminate is laminated with a laminating roll 34. Then, the heat-curing furnace 3
5 and a method in which a required number of similar resin-impregnated base materials 32 as shown in FIG.
3 and then laminate the laminate 3
And then manufactured by the same method.

The base material 3 used for manufacturing the laminate 10
As 0, the resin composition 31 has a void inside or on the surface.
Is not particularly limited as long as it can be impregnated with
Cloths and papers using fibers such as glass fibers, aramid fibers, polyester fibers, nylon fibers, and the like are included. In addition, when the base material 30 is a glass fiber cloth (glass cloth) or paper (glass paper), the obtained laminate is excellent in heat resistance and is preferable. In addition, this base material 3
The thickness of 0 is generally 0.02 to 0.2 mm.

The resin composition 31 used for manufacturing the laminated board 10 may be a thermosetting resin composition. In the case of the resin composition 31 containing a radical polymerization type thermosetting resin, It is preferable because the long laminated plate 10 can be easily and continuously manufactured. In addition, examples of the radical polymerization type thermosetting resin include resins alone such as unsaturated polyester resins and vinyl ester resins, modified products, and mixtures thereof. In the case of a resin composition containing a radical polymerization type thermosetting resin, together with the radical polymerization type thermosetting resin, if necessary, styrene, radical polymerizable monomers such as diallyl phthalate, inorganic and organic fillers and the like. ,
An antisettling agent or the like for the filler may be appropriately blended.

The metal foil 33 used for manufacturing the laminate 10 is not particularly limited as long as it is a long metal foil that can be continuously supplied.
Nickel foil and the like can be mentioned.
012 to 0.07 mm is common.

The number of resin-impregnated substrates to be laminated when manufacturing the laminated plate 10 is not particularly limited as long as the obtained laminated plate 10 can be wound up. When the number of the materials is one and the thickness of the base material is 0.02 to 0.08 mm, troubles such as catching in the processing step of the printed wiring board of the present invention hardly occur, and the laminated board 10 The effect that cracks hardly occur in the insulating portion is particularly excellent and preferable.

[0021]

The feeder for a laminate according to the present invention is formed so as to continuously warp and feed the laminate unwound from a roll. In addition, troubles such as catching in the process of processing the printed wiring board are less likely to occur, and cracks are less likely to occur in the insulating portion of the laminate.

[Brief description of the drawings]

FIG. 1 is a diagram illustrating an embodiment of a laminated plate supply device according to the present invention.

FIG. 2 is a view for explaining another embodiment of the laminated sheet supply apparatus according to the present invention.

FIG. 3 is a view for explaining a method of manufacturing a laminate supplied by the laminate supply apparatus according to the present invention.

FIG. 4 is a diagram illustrating a conventional method of manufacturing a laminated board.

[Explanation of symbols]

 REFERENCE SIGNS LIST 10 laminated plate 12 rolled material 20 roll 22 fixed shaft 23 support 26 three rolls 28 transport roll 30 base material 31 resin composition 32 resin impregnated base material 33 metal foil 34 laminating roll 35 heat curing furnace 36 cutter

 ──────────────────────────────────────────────────続 き Continuing on the front page (72) Inventor Miku Sugawa 1048, Kazuma Kadoma, Kadoma City, Osaka Prefecture Inside Matsushita Electric Works Co., Ltd. Term (reference) 4F100 AB01B AB01C AB33B AB33C AK01A BA03 BA06 BA10B BA10C DG11A EJ08 EJ18 EJ27 EJ82A EJ93 EJ94 GB43 JB13A JG04 JL01 JL05 5E346 CC08 GG01 GG28 HH31

Claims (4)

[Claims] 1. A resin-impregnated base material in which a base material is impregnated with a thermosetting resin composition and a metal foil are laminated so that the metal foil is disposed on both surface layers thereof, and then the thermosetting resin composition is obtained. In a laminate feeding apparatus for unwinding and continuously feeding a metal foil-clad laminate from a wound product of a metal foil-clad laminate manufactured by curing and winding, a method of supplying the laminate is performed by a winding method. A laminated sheet supply apparatus characterized in that the laminated sheet unwound from a take is continuously re-warped and then supplied. 2. The laminated board according to claim 1, wherein the method of performing the warping is a method of bringing a roll into pressure contact with a surface of the laminated board that is outside the rolled material. Feeder. 3. The lamination according to claim 1, wherein the number of the resin-impregnated substrates to be laminated is one, and the thickness of the substrate is 0.02 to 0.08 mm. Board feeding device. 4. The supply of a laminate according to claim 1, wherein the thermosetting resin composition is a resin composition containing a radical polymerization type thermosetting resin. apparatus.