JP6804108B2 - Misalignment prevention jig and press jig - Google Patents

Description

The present invention is a position for preventing misalignment of an inner layer plate, a prepreg resin, a copper foil, etc. (hereinafter, referred to as "inner layer plate, etc.") in manufacturing a multilayer printed wiring board (hereinafter referred to as "multilayer substrate") by a mass lamination method. The present invention relates to a misalignment prevention jig and a press jig provided with the misalignment prevention jig.

The mass lamination method is known as a method for manufacturing a multilayer substrate. The mass lamination method is a method in which an inner layer plate having a conductor pattern formed in advance is sandwiched between a prepreg resin and a copper foil and a large number of sheets are laminated.

In the mass lamination method, members such as an inner layer plate are stacked between two upper and lower pressure plates (hereinafter, the lower pressure plate is referred to as a "lower pressure plate" and the upper pressure plate is referred to as an "upper pressure plate"). After arranging them, pressurize them from above the upper pressurizing plate with a press to bond these members. The members may be displaced during pressurization, but if the members are displaced, it cannot be commercialized. Therefore, in the mass lamination method, it is one of the problems to prevent this displacement.

Conventionally, as a misalignment prevention jig for preventing misalignment of the inner layer plate, etc., a jig having a fixed side piece fixed to the upper pressurizing plate and a movable side piece movably attached to the fixed side piece. (Patent Document 1) is known.

Japanese Patent No. 3161655

The misalignment prevention jig described in Patent Document 1 has a structure in which a flat plate-shaped fixed side piece and a movable side piece are fixed with a pin so as to overlap each other, and the movable side piece is tilted and caught on the pin. Then, it may not be completely lowered to the bottom, and a gap may be generated between the lower end of the movable side piece and the lower pressure plate, and the position may be displaced at that portion. Further, since the movable side piece of Patent Document 1 is lowered by its own weight, it cannot be used as the lower pressure plate side.

The problem to be solved by the present invention is to provide a misalignment prevention jig that can prevent misalignment with high accuracy and can be attached to both an upper pressurizing plate and a lower pressurizing plate, and a press jig provided with the misalignment prevention jig. To do.

[Position prevention jig]
The misalignment prevention jig of the present invention comprises a fixed portion fixed to the upper pressure plate, a movable portion movably connected to the fixed portion, and an elastic body disposed between the fixed portion and the movable portion. It is prepared. The movable part is urged by an elastic body in a direction away from the fixed part. The fixed portion includes an inner guide portion, and the movable portion includes an inner side wall and an outer wall facing each other. A gap on the movable part side is provided between the inner side wall and the outer wall. The movable portion is covered with the inner guide portion so that the inner guide portion fits in the movable portion side gap so that the movable portion can move up and down in the gap.

[Press jig]
The press jig of the present invention is a press jig used for manufacturing a multilayer substrate by a mass lamination method, and a plurality of misalignment prevention jigs of the present invention are attached to both or one of the upper pressure plate and the lower pressure plate. An arrangement space for arranging an inner layer plate or the like is provided inside the plurality of misalignment prevention jigs. The misalignment prevention jig is provided on the surface facing the upper pressure plate or the lower pressure plate.

[Position prevention jig]
In the misalignment prevention jig of the present invention, since the movable portion is urged by the elastic body in the direction away from the fixed portion, it is possible to prevent the misalignment of the entire member between the upper pressurizing plate and the lower pressurizing plate. Further, it can be used by being attached not only to the upper pressure plate but also to the lower pressure plate.

[Press jig]
Since the press jig of the present invention includes the misalignment prevention jig of the present invention, it has the same effect as the misalignment prevention jig of the present invention.

The perspective view which shows an example of the misalignment prevention jig of this invention. A detailed explanatory view of the misalignment prevention jig shown in FIG. (A) is a cross-sectional view of a misalignment prevention jig in a non-pressurized state, and (b) is a cross-sectional view of a misalignment prevention jig in a pressurized state. (A) is a front view of the misalignment prevention jig shown in FIG. 1, (b) is a rear view of (a), (c) is a plan view of (a), and (d) is a bottom view of (a). e) is the left side view of (a), and (f) is the right side view of (a). The perspective view which shows an example of the press jig of this invention. (A) is an explanatory view of a state in which an inner layer plate or the like is laminated on a lower pressure plate, (b) is an explanatory view of a state in which an upper pressure plate or the like is covered on the laminated inner layer plate or the like, and (c) is a cover. Explanatory view of the state of being pressurized from above the pressure plate.

(Embodiment of Misalignment Prevention Jig)
An example of the misalignment prevention jig 10 of the present invention will be described with reference to the drawings. Displacement prevention jig 10 of the present invention, in the production of multi-layer substrates according mass lamination method, it is to use attach the pressure plate of the press jig. The misalignment prevention jig 10 of the present invention can be attached to both or one of the upper pressurizing plate P1 and the lower pressurizing plate P2, but here, the case of attaching to the upper pressurizing plate P1 will be described as an example.

As an example, the misalignment prevention jig shown in FIGS. 1 and 2 includes a fixed portion 1 fixed to the upper pressure plate P1, a movable portion 2 movably connected to the fixed portion 1, and the fixed portion 1 and the movable portion. A coil spring (elastic body) 3 arranged between the two is provided.

As shown in FIG. 2, the fixing portion 1 of this embodiment has a main body 11 fixed to the upper pressurizing plate P1 (see FIG. 5), a restricting body 12 fixed to the main body 11, and downward to the restricting body 12. The spring mounting shaft 13 provided is provided.

The main body 11 includes a fixed surface 11a addressed to the upper pressure plate P1 and an inner guide portion 11b that is folded downward at a right angle from one end side of the fixed surface 11a. The fixed surface 11a has a horizontally rectangular shape in a plan view. The fixed surface 11a is provided with three through holes 11c at intervals.

Of the three through holes 11c, the outer two are holes for inserting the screw 4a for fixing the main body 11, and the middle one is a hole for inserting the long screw 4b for fixing the regulator 12. Of the screws 4a and long screws 4b inserted through the through holes 11c, nuts 5a and 5b are fastened to the tip side that penetrates the upper pressure plate P1.

The inner guide portion 11b is a portion covered by the movable portion 2. The inner guide portion 11b of this embodiment has a horizontally rectangular shape, and the central portion thereof is recessed rearward from both side portions (reference portions). The inner side wall 22 of the movable portion 2, which will be described later, is fitted in the recessed portion (recessed portion). In this way, the inner side wall 22 housed in the recessed portion has its inner surface side flush with the inner surface side of the reference portion of the inner guide portion 11b (see FIGS. 4C and 4d), and the reference portion and the inner side wall 22 Since no step is formed between the two, it is possible to prevent the inner layer plate and the like X (see FIGS. 6A to 6C) from being displaced with high accuracy.

In the misalignment prevention jig of Patent Document 1, since the fixed side piece and the movable side piece are connected so as to overlap each other in the front-rear direction, when the movable side piece is lowered, the fixed side piece and the movable side piece are movable. A step is generated on the inner surface side of the side piece, and the misalignment cannot be prevented with the accuracy of the misalignment prevention jig of the present invention.

The restricting body 12 is a member that restricts the movable portion 2 from falling off from the fixed portion 1. The restrictor 12 of this embodiment has a side view L provided with a destination surface 12a addressed to the bottom surface side of the fixed surface 11a and an outer guide portion 12b folded downward at a right angle from one end side of the address surface 12a. It is a character-shaped member.

An insertion hole 12c for a long screw 4b used for fixing the regulating body 12 to the fixing surface 11a and fixing the spring mounting shaft 13 to the regulating body 12 is provided at the central portion of the addressing surface 12a. An elongated opening 12d in the vertical direction is provided at the center of the outer guide portion 12b in the width direction.

When the addressing surface 12a of the restricting body 12 is fixed to the fixing surface 11a of the main body 11 of the fixing portion 1, a fixing portion side gap 14 (FIG. 3A) is formed between the inner guide portion 11b and the outer guide portion 12b. Will be done. The fixed portion side gap 14 is wide enough to accommodate the outer wall (described later) 21 of the movable portion 2, more specifically, the outer wall 21 can move up and down smoothly and does not move in the front-rear direction. There is.

The spring mounting shaft 13 of this embodiment is a cylindrical member, and is fixed to the addressing surface 12a, the fixing surface 11a, and the upper pressure plate P1 (FIG. 5) by the long screw 4b and the nut 5b fastened to the long screw 4b. There is. The spring mounting shaft 13 projects downward on the bottom surface side of the addressing surface 12a. The spring mounting shaft 13 is covered with one end (upper end) side of the coil spring 3.

The movable portion 2 is a member that is vertically and vertically connected to the fixed portion 1. The movable portion 2 of this embodiment is a U-shaped member in a side view provided with an outer wall 21 and an inner side wall 22 facing each other. The outer wall 21 and the inner side wall 22 of this embodiment have a horizontally rectangular shape, and a movable portion side gap 25 having a width for accommodating the inner guide portion 11b is formed between them.

A spring holding portion 23 projecting outward is provided on the lower end side of the outer wall 21, and a restricting claw 24 projecting outward is provided on the upper end of the central portion of the outer wall 21. The regulating claw 24 is provided at a position where it fits in the opening 12d of the outer guide portion 12b, and is locked to the lower edge of the opening 12d in a non-pressurized state (a state in which the coil spring 3 is extended). .. By locking the regulating claw 24 to the lower edge of the opening 12d, the movable portion 2 is prevented from coming off (falling off) from the fixing portion 1.

A recessed portion 21a having a width for accommodating the fixed surface 11a is formed at the upper end of the outer side wall 21, and an opening 21b formed at the time of forming the spring holding portion 23 is formed at the central portion on the lower end side.

A fitting convex portion 23a into which the coil spring 3 is fitted is provided on the upper surface of the spring holding portion 23. The fitting convex portion 23a of this embodiment is circular, and when one end (lower end) side of the coil spring 3 is put on the outer periphery thereof, the fitting convex portion 23a is fitted inside the coil spring 3. The upper end side of the coil spring 3 covers the spring mounting shaft 13 and the lower end side is fitted to the fitting convex portion 23a, so that careless movement or disconnection in the horizontal direction is prevented.

In the misalignment prevention jig 10 of this embodiment, the inner guide portion 11b of the fixed portion 1 is sandwiched between the outer wall 21 and the inner side wall 22 of the movable portion 2, and the outer wall 21 of the movable portion 2 is the inner guide portion 11b and the outer guide. Since the structure is sandwiched between the portions 12b, it is possible to minimize the shake in the front-rear direction when the fixed portion 1 and the movable portion 2 move up and down relatively.

Since the fixed side piece and the movable side piece of the misalignment prevention jig of Patent Document 1 are flat plates and are simply connected so as to overlap each other in the front-rear direction, the misalignment prevention jig of the present invention is provided. It is not possible to prevent blurring in the front-back direction as in.

The misalignment prevention jig 10 of this embodiment has the appearances of FIGS. 4A to 4F in terms of design. 4 (a) is a front view of the misalignment prevention jig 10 of this embodiment, (b) is a rear view of (a), (c) is a plan view of (a), and (d) is a bottom surface of (a). In the figure, (e) is a left side view of (a), and (f) is a right side view of (a).

In the above embodiment, the case where the misalignment prevention jig 10 is attached to the upper pressure plate P1 of the press jig is taken as an example, but the misalignment prevention jig 10 of the present invention can also be attached to the lower pressure plate P2 of the press jig. In this case, the misalignment prevention jig 10 is upside down from the above-described embodiment, but its structure itself is the same.

(Action)
In the movable portion 2 of this embodiment, the spring holding portion 23 is urged in a direction away from the fixed surface 11a of the fixed portion 1 as shown in FIG. 3A when the pressure is not applied. When a downward force is applied to the fixed portion 1 in this state, the coil spring 3 is compressed and the inner guide portion 11b moves downward (pushed down) in the movable portion side gap 25 as shown in FIG. 3 (b). The distance (height) between the fixed portion 1 and the movable portion 2, specifically, the distance between the fixed surface 11a of the fixed portion 1 and the spring holding portion 23 of the movable portion 2 becomes narrow. Further, when the pressurization is released from this state, the coil spring 3 expands, and the distance between the fixed portion 1 and the movable portion 2 returns to the width before pressurization.

(Embodiment of Press Jig)
An example of an embodiment of the press jig 40 of the present invention will be described with reference to the drawings. The press jig 40 of this embodiment includes a flat plate square upper pressure plate P1 and a lower pressure plate P2, and a misalignment prevention jig 10 provided on the bottom surface side of the upper pressure plate P1.

In this embodiment, as the displacement prevention jig 10, it is used, the displacement prevention jig 10 described in the embodiment of the displacement prevention冶device 10. Displacement prevention jig 10 are attach on a surface facing the lower pressing plate P2 (the bottom side of the upper pressure plate P1). Each misalignment prevention jig 10 is provided with the coil spring 3 side facing outward.

Each misalignment prevention jig 10 of this embodiment is detachably attached from the upper pressure plate P1. When manufacturing a multilayer substrate, the prepreg resin may elute and adhere to the pressure plate or the misalignment prevention jig. If the adhered prepreg resin solidifies, it contributes to the occurrence of defects, so the press jig needs to be cleaned frequently.

The misalignment prevention jig 10 of this embodiment is designed to be removable from the upper pressurizing plate P1, and the upper pressurizing plate P1, the lower pressurizing plate P2, and the misalignment prevention jig 10 can be individually cleaned, so that the entire press jig can be cleaned. You can clean every detail.

Since the misalignment prevention jig described in Patent Document 1 is fixed to the pressure plate, it is difficult to clean the details as compared with the misalignment prevention jig 10 of the present invention.

One or two or more of the plurality of misalignment prevention jigs 10 are attached along each side of the upper pressure plate P1, and an arrangement space S in which the inner layer plates and the like X are laminated and arranged is formed inside them. ing. The arrangement space S has a size that allows the inner layer plates and the like X to be stacked and arranged.

In this embodiment, the case where the misalignment prevention jig 10 of the present invention is attached to the upper pressure plate P1 of the press jig 40 is taken as an example, but the misalignment prevention jig 10 of the present invention is attached to the lower pressure plate P2 of the press jig 40. You can also do it. In this case, the misalignment prevention jig 10 is upside down from the above-described embodiment, but its structure itself is the same.

The misalignment prevention jig 10 can also be attached to both the bottom surface side of the upper pressure plate P1 and the upper surface side of the lower pressure plate P2. In this case, the mounting positions of the misalignment prevention jig 10 attached to the upper pressurizing plate P1 and the misalignment prevention jig 10 attached to the lower pressurizing plate P2 are shifted in the horizontal direction so as not to interfere with each other during pressurization. It is necessary to keep it.

(Action)
As shown in FIG. 6A, the inner layer plate or the like X is laminated on the lower pressure plate P2. As shown in FIG. 6B, the upper pressure plate P1 is placed above the laminated inner layer plates and the like X. At this time, the laminated inner layer plates and the like X are set to fit in the arrangement space S formed on the bottom surface side of the upper pressure plate P1. By doing so, the horizontal displacement of the inner layer plate or the like laminated by the misalignment prevention jig 10 attached to the upper pressure plate P1 is prevented. In this state, when the upper pressurizing plate P1 is pushed down and a downward force is applied to the fixing portion 1, the coil spring 3 is compressed and the inner guide portion 11b is moved into the movable portion side gap 25 as shown in FIG. 6C. It moves downward (pushed down), and the distance (height) between the fixed portion 1 and the movable portion 2 becomes narrower, more specifically, the distance between the fixed surface 11a of the fixed portion 1 and the spring holding portion 23 of the movable portion 2 becomes narrower. .. Further, when the pressurization is released from this state, the coil spring 3 expands, and the distance between the fixed portion 1 and the movable portion 2 returns to the width before pressurization.

The misalignment prevention jig 10 and the press jig 40 of the present invention can be used in the production of a multilayer substrate by a mass lamination method.

1 Fixed part 2 Moving part 3 Coil spring (elastic body)
4a screw 4b long screw 5a, 5b nut 10 misalignment prevention jig 11 main body 11a fixing surface 11b inner guide part 11c through hole 12 regulator 12a addressing surface 12b outer guide part 12c insertion hole 12d opening 13 spring mounting shaft 14 fixing part Side gap 21 Outer side wall 21a Recessed part 21b Opening 22 Inner side wall 23 Spring holding part 23a Fitting convex part 24 Regulatory claw 25 Moving part Side gap 40 Press jig P1 Upper pressure plate P2 Lower pressure plate S Placement space X Inner layer plate

Claims (4)

In the misalignment prevention jig used by attaching to the pressure plate used for manufacturing multilayer substrates by the mass lamination method.
It is provided with a fixed portion fixed to the pressure plate, a movable portion movably connected to the fixed portion, and an elastic body disposed between the fixed portion and the movable portion.
The movable portion is urged by the elastic body in a direction away from the fixed portion .
The fixing portion includes an inner guide portion and
The movable part includes an inner side wall and an outer wall facing each other.
A gap on the movable part side is provided between the inner side wall and the outer wall.
The movable portion is covered with the inner guide portion so that the inner guide portion fits in the movable portion side gap, and can move up and down in the gap.
A misalignment prevention jig that is characterized by this. In the misalignment prevention jig according to claim 1 ,
The fixed part is provided with an outer guide part facing the inner guide part.
A gap on the fixed portion side is provided between the inner guide portion and the outer guide portion.
The outer wall of the movable part can move up and down within the gap on the fixed part side.
A misalignment prevention jig that is characterized by this. In the misalignment prevention jig according to claim 1 or 2 .
The inner guide portion includes a reference portion and a recessed portion recessed from the reference portion.
The inner side wall of the movable portion is arranged in the recess portion so as to be flush with the reference portion.
A misalignment prevention jig that is characterized by this. In press jigs used for manufacturing multilayer substrates by mass lamination method
A plurality of misalignment prevention jigs according to any one of claims 1 to 3 are attached to both or one of the upper pressure plate and the lower pressure plate of the press jig.
An arrangement space for arranging an inner layer plate or the like is provided inside the plurality of misalignment prevention jigs.
A press jig characterized by that.

Images