JPH0992957A - Surface treatment jig for thin metal foil-clad substrates - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a rack which is useful for treating a surface of a thin metallic foil clad board effectively with good reliability. SOLUTION: This device is a jig for treating a surface of a thin metallic foil clad board by chemical while supporting it perpendicularly to a rack 10. The rack 10 of the surface treatment jig of a thin metallic foil clad board comprises a frame-like frame 30 for fixing right and left of a thin metallic foil clad board and a plurality of rack frame inner frames 20 which can be opened and closed freely for supporting and fixing right and left of the frame 30.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a surface treatment jig for a thin metal foil-clad substrate. In particular, it is useful for efficiently and reliably performing surface treatment of a metal surface of a thin metal foil-clad substrate, for example, a copper-clad substrate having a thickness of about 0.1 mm or less, a printed wiring board, or the like.

[0002]

2. Description of the Related Art Conventionally, metal foil-clad substrates have been subjected to various surface treatments such as roughening treatment. For example, an inner layer core material of a multilayer printed wiring board is treated with a chemical solution. It has been practiced to immerse a copper-clad substrate for blackening treatment. In this blackening treatment, it is general practice to simultaneously support a plurality of substrates on a rack and immerse them in a treatment chemical solution. Along with the thinning of the multilayer printed wiring board, the core material and the like constituting the multilayer printed wiring board are becoming thinner. Therefore, for example, in surface treatment such as blackening treatment, in order to prevent the mutual contact of the substrates, to enable a uniform treatment,
For example, as shown in FIG. 7, there is a method of using a horizontal frame (41) or a partition jig (42) as an inner frame to support and fix the thin metal foil-clad substrate (A) to the rack (40).

[0003]

However, in the case of the conventional method shown in FIG. 7, there is a problem in arranging a large number of thin boards having a plate thickness of 0.1 mm or less and a residual copper rate of 40% or less. . That is, the board is easily deflected, and as a result, when the horizontal frame (41) is used, the surface of the board contacts the horizontal frame (41) and the processing surface is damaged, or the partition jig (42) is attached. However, the substrates may come into contact with each other to cause processing defects. Further, in the case of such a supporting and fixing method, it is difficult to carry out supporting and fixing so that there is no deflection, and take out without mutual contact,
It took a considerable amount of time for the work. As described above, a surface treatment jig is desired that can perform uniform treatment with high efficiency, high yield, and high reliability at the same time for a large number of thin substrates with a plate thickness of 0.1 mm or less and a residual copper ratio of 40% or less. Was there.

[0004]

Means for Solving the Problems That is, the present invention relates to a jig for vertically supporting a thin metal foil-clad substrate (A) on a rack (10) for surface treatment with a chemical solution. )
Is a frame-shaped frame (30) for supporting and fixing the left and right sides of the thin metal foil-clad substrate (A), and a plurality of openable and closable rack frame inner frames for supporting and fixing the left and right sides of the frame-shaped frame (30). (20) A surface treatment jig for a thin metal foil-clad substrate comprising:

Then, the present invention relates to the frame-like frame (30).
However, the frame (31, 32) made of a corrosion-resistant metal plate is provided with the frame (31, 32) and the fixtures (33, 34) on the left and right sides thereof, and the plate (36 having at least one fixture (33 or 34) is provided. ) Is the upper and lower frame frame (32) according to the size of the thin metal foil-clad substrate (A)
Can be fixed by moving left and right,
The rack frame inner frame (20) is one in which auxiliary tools (21) made of an elastic body are provided on the left and right supporting and fixing parts, and the rack frame inner frame (20) is a frame-shaped frame (30). The left and right frame portions provided with the supporting and fixing portions having a width corresponding to the positions of the left and right frame portions, and the upper and lower frame portions that are continuous with the left and right frame portions and correspond to the positions of the upper and lower frame portions of the frame frame (30). The rack (10) further comprises an inner frame (20) for the rack (1).
A surface treatment jig for a thin metal foil-clad substrate, comprising a fixture (11) provided with an elastic body for supporting and fixing to the frame (0).

[0006]

Embodiments of the present invention will be described with reference to the drawings. 1, 2 and 3 show an example in which a plurality of thin metal foil-clad substrates (A) supported and fixed to a frame-shaped frame (30) of the present invention are vertically supported and fixed to a rack (10). 1 is a front view, FIG. 2 is a right side view of FIG. 1, and FIG. 3 is the rack (10).
FIG. 3 is a perspective view showing a side supporting and fixing portion of the rack frame inner frame (20). 4, 5 and 6 show examples in which the frame-shaped frame (30) of the present invention and the thin metal foil-clad substrate (A) are supported and fixed to the frame-shaped frame (30). FIG. 4 is a front view, FIG. 5 is a right side view of FIG. 4, and FIG. 6 is a view showing that the thin metal foil-clad substrate (A) is supported on the frame-shaped frame (30) by a movable supporting and fixing frame (32). It is a perspective view which shows the part for fixing.

First, FIGS. 4, 5 and 6 relating to the frame-like frame (30) of the present invention will be described. In the figure, the upper and lower frame frames are formed with a fixing portion for moving and fixing the movable supporting and fixing frame (32) freely to the left and right, and the upper and lower portions of the movable supporting and fixing frame (32) are fixed. Fix it in the desired position with the fixture (37). Support fixing frame (31) fixed inside the left frame, movable support fixing frame (32)
A board fixing plate (35, 36) for fixing the thin metal foil-clad board (A) is provided on this. Then, using the fixtures (33, 34), the supporting and fixing frame (31, 32) and the board fixing plate (35, 36)
A thin metal foil-clad substrate (A) is sandwiched between and fixed.

A frame-shaped frame (3
The support fixation to 0) is as follows. Attach the left and right ends of the thin metal foil-clad substrate (A) to the left and right supporting and fixing frames (31,3
2) and the board fixing plate (35, 36), and fix
Tighten (33,34) to secure. Then, loosen the fixing tool (37) of the movable supporting and fixing frame (32), move it so that there is no slack in the thin metal foil-clad substrate (A), and then tighten the fixing tool (37) to fix it. To do. As a result, the thin metal foil-clad substrate (A) can be used in the frame-shaped frame (3
It is firmly supported and fixed to 0).

After treatment with a chemical solution, a thin metal foil-clad substrate (A)
Place the frame-shaped frame (30) with the
Loosen (33, 34, 37) and move the supporting support frame (3
2) Move the frame-shaped frames (30) respectively to open the thin metal foil-clad substrate (A) on the flat plate from the frame-shaped frames (30). This allows the board to be taken out directly without touching the thin metal foil-clad board (A).
It is possible to prevent breakage, scratches, and other defects from occurring in (A).

1, 2 and 3 relating to the rack (10) for supporting and fixing the frame-shaped frame (30) will be described below. 1, 2, 3 and in particular FIG. 2, the rack (10) is
It consists of the rack frame outer frame (12) and multiple openable rack frame inner frames (20a to 20e).
0a to 20e) can be opened and closed centering on a rotating portion (14) provided at the bottom of the rack frame outer frame (12). Further, the fixture (11) equipped with an elastic body for supporting and fixing the rack frame inner frame (20a to 20e) to the rack frame outer frame (12) and the rack frame inner frame (20a to 20e) are opened. Condition adjustment and the fixture (1
1) and the inner frame stopper (1) that supports and fixes the rack frame inner frame (20a to 20e) to the rack frame outer frame (12).
3) and are provided.

Further, auxiliary tools (21) made of an elastic body are provided on the left and right frames of the rack frame inner frames (20a to 20e). This auxiliary tool (21) is suitable for thick substrates and thin metal foil-clad substrates.
(A) is a spacer when the frame-shaped frame (30) supporting and fixing it is fixed to the rack, and at the same time, the auxiliary tool (2
Since 1) is made of an elastic body, it is possible to stably support and fix it even by vibration.

The frame-shaped frame (30) supporting and fixing the above-mentioned thin metal foil-clad substrate (A) opens the inner frame stopper (13) of the rack frame outer frame (12) (FIG. 2), The inner frames (20a to 20e) are opened to the outside and arranged between the inner frames (20a to 20e). Then, pull up the inner frame stopper (13) and fix it.
It is supported and fixed to the rack (10) by (11). After treatment with the chemical solution, remove the fixture (11), open the inner frame (20a ~ 20e) sequentially,
A frame-shaped frame (3) that supports and fixes a thin metal foil-clad substrate (A).
Take out 0).

As described above, using the thin metal foil-clad substrate surface treatment jig of the present invention, various sizes of the thin metal foil-clad substrate having a thickness of 0.05 mm and a residual copper rate of 35% were removed from the rack, and The treatment could be performed stably without contact. In addition, according to the present invention, the time for loading and unloading a thin metal foil-clad substrate of about 0.1 mm or less into the surface treatment jig is reduced by about 40%, and there is no processing defect such as dropping of the substrate during processing or mutual contact between substrates. It was

Although the present invention has been described above with reference to the specific drawings, the present invention is not limited to the above. The rack (10) of the present invention, the rack frame inner frame (20a ~ 20e), the material used for the structure of the frame-like frame (30), such as those that are not attacked by the chemical used in the treatment, metal, ceramics, resin, It is selected from a resin-coated metal or the like, and has a thickness and a thickness capable of obtaining sufficient rigidity. In particular, the configuration in which the reinforcing material is installed inside the rack frame causes a chemical treatment failure, and thus it is necessary to use a material that does not require such a reinforcing material. Specific examples include titanium, titanium alloys, stainless steel (SUS304, 316, etc.), Teflon-coated stainless steel, and the like.

The elastic body supporting and fixing aid (21) of the present invention is one which is not attacked by the chemical solution used for the treatment, and is made of, for example, silicone rubber or fluororubber. Also, the elastic fixture (11) is
It is for firmly supporting and fixing the rack frame inner frames (20a to 20e) sandwiching the frame-shaped frame (30) to the rack (10), specifically, other than the catch clip shown in FIG. Examples of the spring snap lock include a spring clip having the same function as a catch clip, although the elastic body has a different shape, and an adjustable catch and an adjustable fastener which have no elasticity but whose tightening margin is adjustable. In the latter case, in particular, the elastic support of the elastic body support / fixing tool (21) and the tightening margin of the fixing tool are adjusted to firmly support and fix the rack frame inner frame (20a to 20e) to the rack (10). .

The board fixing member (33, 34) and the board fixing plate (35, 36) provided on the frame-like frame (30) of the present invention include:
In addition to the structure shown in FIG. 6, pins are provided on the board fixing tools (33, 34) to preliminarily prepare a thin metal foil-clad board (A) and a board fixing plate (3
5,36) and the like, a hole corresponding to this pin is provided, and the pin is fixed. Also, a thin metal foil-clad substrate
Board fixing tool (33, 34) in contact with (A), board fixing plate (3
The surface of (5,36) can be subjected to uneven processing or coated with a material having a large friction coefficient.

Further, the thin metal foil-clad substrate (A) should not be wrinkled or bent, and the frame-shaped frame (3
Board fixture (34) that can be moved left and right to secure it to (0)
A spring etc. can be temporarily fixed between the frame and the frame located outside it, and the board fixing tool (33, 34) and the board fixing plate (35, 36)
After firmly fixing with and, temporarily fix the spring etc.
A method of fixing the substrate fixing member (34) that can be moved left and right at (37) can be appropriately used.

[0018]

The thin metal foil-clad substrate (A) supported and fixed to the frame-like frame (30) is racked by the surface treatment jig of the present invention.
A plurality of vertically supported thin metal foil substrates (A)
The surface treatment can be efficiently and reliably performed.

[0019]

As described above in detail, the present invention enables the surface treatment of thin metal foil-clad substrates of various sizes, and it is possible to prevent defects such as treatment defects caused by the deflection of the surface treatment resulting in mutual contact between the substrates and racks. The inconvenience of dropping does not occur. Productivity, workability, and processing efficiency are greatly improved.

[Brief description of drawings]

FIG. 1 is a front view of an example in which a plurality of thin metal foil-clad substrates (A) supported and fixed to a frame-shaped frame (30) are vertically supported and fixed to a rack (10).

2 is a right side view of the side view FIG. 1. FIG.

FIG. 3 is a perspective view of the rack (10) and the rack frame inner frame (20).
A part (11) for supporting and fixing the frame and an elastic body supporting and fixing aid (21) for supporting and fixing the frame-shaped frame (30) provided in the rack frame inner frame (20) are shown. It is a perspective view.

FIG. 4 is a front view showing a frame-shaped frame (30) and a thin metal foil-clad substrate (A) supported and fixed thereto.

5 is a right side view of the side view FIG. 4. FIG.

FIG. 6 is a perspective view of a movable frame frame (3) for supporting and fixing a thin metal foil-clad substrate (A) provided on a frame (30) having a frame shape.
It is a perspective view showing a portion 2).

FIG. 7 is a perspective view showing a conventional rack.

[Explanation of symbols]

10: Rack, 11: Fixing tool for rack frame inner frame having elasticity, 20: Rack frame inner frame, 21: Elastic body support fixing aid for supporting and fixing frame-shaped frame (30), 3
0: Frame-shaped frame, 31,32: Frame frame, 33,34:
Board fixing tool, 35, 36: board fixing plate, 40: conventional rack, 41: horizontal frame for preventing board from falling off, 42: partition for preventing board contact.

Claims (5)

[Claims] 1. A jig for vertically supporting a thin metal foil-clad substrate (A) on a rack (10) for surface treatment with a chemical solution, wherein the rack (10) comprises the thin metal foil-clad substrate (A). ), A frame-shaped frame (30) for supporting and fixing the left and right sides of the frame, and a plurality of openable and closable rack frame inner frames (20) for supporting and fixing the left and right sides of the frame-shaped frame (30). A surface treatment jig for thin metal foil-clad substrates. 2. The frame-shaped frame (30) comprises a frame-shaped frame frame (31, 32) made of a corrosion-resistant metal plate and fixing members (3) on the left and right sides thereof.
3, 34) and the plate (36) provided with at least one fixture (33 or 34) is the thin metal foil-clad substrate (A).
2. The surface treatment jig for a thin metal foil-clad substrate according to claim 1, wherein the upper and lower frame frames (32) can be moved and fixed to the left and right according to the size of the. 3. The surface treatment of a thin metal foil-clad substrate according to claim 1, wherein the rack frame inner frame (20) is provided with auxiliary tools (21) made of an elastic body on the left and right supporting and fixing portions. jig. 4. The rack frame inner frame (20), the left and right frame parts provided with support and fixing parts having a width corresponding to the positions of the left and right frame parts of the frame frame (30), and the left and right frame parts. 2. The thin metal foil-clad substrate according to claim 1, wherein the thin metal foil-clad substrate is composed of upper and lower frame portions which are continuous with the frame and have a height higher than the positions of the upper and lower frame portions of the frame frame (30). Surface treatment jig. 5. The rack (10) comprises a rack frame inner frame (2
The surface treatment jig for a thin metal foil-clad substrate according to claim 1, further comprising a fixture (11) provided with an elastic body for supporting and fixing (0) to the frame of the rack (10).