JPH09141829A - Apparatus for producing electronic part - Google Patents

Abstract

PROBLEM TO BE SOLVED: To prevent the generation of dripping in the rear part of the printing pattern transferred to the rear surface of a receiving material by making the opening area of cells of the rear part provided within a printing pattern smaller than that of the cells of a front part. SOLUTION: The opening area of small cells 2a-2c provided to the rear part of a plurality of cells provided to a printing pattern is made smaller than the cells of a front part toward a rear part and the depth thereof is also reduced toward the rear part. The cells 2 within the printing pattern 1 and the small cells 2a-2c are formed by etching and the pitch of both of them is made same to that of the front cells 2. The cells are lattice like ones but may be pyramidal cells, oblique line type cells and other special cells. There is no restriction in the arranging angle of the cells 2. By this constitution, the generation of dripping in the rear part of the printing pattern transferred to the rear surface of a receiving material can be prevented.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an electronic component manufacturing apparatus using a printing method.

[0002]

2. Description of the Related Art In a manufacturing apparatus for electronic parts using a printing method, a printing pattern 1 which is an assembly of a plurality of cells is provided on a columnar substrate 3 as shown in FIG. This print pattern 1 is, as shown in FIGS.
It is formed by aligning a plurality of cells 2.

Then, after supplying the printing paint 5 into the cell 2 as shown in FIG. 4, the excess printing paint 5 on the cylindrical substrate 3 is scraped off by a plate-shaped blade 6 to print only in the cell 2. Leave the paint 5. After that, the transfer materials 7 and 8 passing over the upper surface of the substrate 3 are pressed by the pressing roller 9, whereby the printing paint 5 in the cell 2 is applied to the lower surfaces of the transfer objects 7 and 8.
Is transferred to obtain a predetermined print pattern 11.

[0004]

A problem in the above-mentioned conventional example is that the coating material is dripped at the rear part of the print pattern 11 transferred to the lower surface of the transferred bodies 7 and 8.

That is, the print pattern 11 formed on the lower surface of the transferred body 7 is determined by the dimensional specifications of the product to be manufactured, and the cells 2 of a predetermined size are appropriately arranged in this. Therefore, the excess printing paint 5 on the substrate 3
When the blade is scraped off with a plate-shaped blade 6, a small amount of the printing paint 5 in the cell 2 is also drawn out. Although the printing paint 5 in the front cell 2 is unlikely to cause any trouble even if it is pulled out, if such a phenomenon occurs in the rear cell 2, the printing paint 5 overflows from a predetermined cell, and as a result, The rear part of the print pattern 11 transferred to the lower surfaces of the transfer bodies 7 and 8 is sagged, resulting in defective dimensions.

Therefore, an object of the present invention is to prevent the sagging of the printing paint 5 from occurring in the rear part of the printing pattern 11 transferred to the lower surface of the transferred body 7.

[0007]

In order to achieve this object, in an electronic component manufacturing apparatus of the present invention, an opening area of a rear cell provided in a print pattern is smaller than an opening area of a front cell. It was done.

[0008]

BEST MODE FOR CARRYING OUT THE INVENTION The invention according to claim 1 of the present invention comprises a substrate having a printing pattern composed of an assembly of a plurality of cells, and a paint supply means for supplying a printing paint into the cells of the substrate. Printing the substrate, comprising moving means for moving the transferred body onto the print pattern of the base body, and pressing means for pressing the transferred body moved onto the print pattern by the moving means toward the base side. The pattern is one in which the opening area of the cell in the rear part is smaller than the opening area of the cell in the front part with respect to the moving direction of the base body,
This has the effect of suppressing sagging of the printing paint.

According to the second aspect of the present invention, the depth of the cells in the rear part of the printing pattern is made shallower than the depth of the cells in the front part, which suppresses the sagging of the printing paint. Have.

According to a third aspect of the present invention, the pitch of the small cells in the rear part of the printing pattern and the large cells in the front part of the printing pattern are made substantially equal to those of the large cells in the front part. It has the effect of suppressing dripping.

According to a fourth aspect of the present invention, the opening edge of the small cell in the rear part of the printing pattern is made smaller than the curvature of the opening edge of the large cell in the front part. It has the effect of suppressing dripping.

Hereinafter, an embodiment of the present invention will be described with reference to FIGS.
This will be described with reference to FIG. In FIGS. 4 and 5, reference numeral 3 denotes a cylindrical iron transfer roller used as an example of the substrate, and a plurality of print patterns 1 are provided on the outer peripheral surface thereof. The lower part of the transfer roller 3 is provided so as to be immersed in the printing paint 5 in the container 10. When the transfer roller 3 rotates as shown by the arrow in FIG.
It is designed to be filled inside.

Reference numeral 6 denotes a plate-shaped blade, which is a transfer roller 3.
The excessive printing paint 5 on the outer periphery is scraped off. On the other hand, above the transfer roller 3, the transferred objects 7, 8 are placed.
Is to move. That is, the transferred bodies 7 and 8 used in the present embodiment are ceramic green sheets,
The film 8 and the green sheet 7 are polymerized, and are moved to the right in FIG. 4 while pressing the polymer by the upper pressing roller 9 and the transfer roller 3. At this time, as shown in FIG. 4, the printing paint 5 in the printing pattern 1 is transferred to the lower surface of the transfer target 7.

The printing paint 5 used in the present embodiment is a conductive paint, and after transfer to the transferred body 7, the printing paint 5 is polymerized and fired like a ceramic capacitor, whereby the printing pattern 11 becomes an electrode. .

What is important in the electrode of such an electronic component is not only that the thickness is uniform, but also that the dimension must be within a predetermined size. In other words, if the dimensions of this electrode become non-uniform, the required capacitance becomes unstable, and in some cases it becomes defective. In particular, when the size becomes large, the electrode parts on both end surfaces are connected to each other, causing a short circuit defect, which significantly deteriorates the electrical characteristics of the entire electronic component. Therefore, in the present embodiment, as shown in FIG. 1 to FIG. 3, small cells 2a, 2b, 2c provided in the rear part of the plurality of cells 2 provided in the print pattern 1 are provided.
The opening area of the cell 2 is smaller than that of the cell 2 in the front part as it goes to the rear part, and the depth thereof is also shallower as it goes to the back part. When the print pattern 11 of FIG. 4 is formed by using the print pattern 1 configured in this way, the sagging of the rear portion of the print pattern 11 is suppressed and the print pattern 11 can be kept within the required size.

The cells 2 in the print pattern 1 and the small cells 2a, 2b, 2c are both formed by etching, and the pitch between them is the same as that of the front cell 2. Further, in FIGS. 1 to 3 and FIGS. 6 to 8, reference numeral 12 is a frame formed in a groove shape on the outer periphery of the print pattern 1. Further, although the shape of the cell 2 in the print pattern 1 shown in FIGS. 1 to 3 and 6 to 8 is described using the lattice type cell 2 in the present embodiment, a pyramid type generally used is used. There is nothing wrong with cells, diagonal cells and other special cells. Further, there is no restriction on the arrangement angle of the cells 2.

[0017]

As described above, according to the present invention, a substrate having a printing pattern composed of an assembly of a plurality of cells, a paint supply means for supplying a printing paint into the cells of the substrate, and the substrate The printing pattern of the base is provided with a moving unit that moves the transfer target on the print pattern, and a pressing unit that presses the transfer target moved by the moving unit onto the print pattern toward the substrate. Since the opening area of the cells in the rear part is smaller than the opening area of the cells in the front part with respect to the moving direction of the substrate, it is possible to balance the amount of printing paint applied in the rear part and transfer it to the transfer target. The sagging of the rear portion of the printed pattern can be suppressed.

[Brief description of the drawings]

FIG. 1 is a plan view showing a print pattern in an embodiment of an electronic component manufacturing apparatus of the invention.

FIG. 2 is a sectional view taken along line AA of FIG. 1;

FIG. 3 is a sectional view taken along line BB of FIG. 1;

FIG. 4 is a front sectional view of an embodiment of an electronic component manufacturing apparatus of the present invention.

5 is a perspective view of the transfer roller of FIG.

FIG. 6 is a plan view showing a printing pattern of a conventional electronic component manufacturing apparatus.

FIG. 7 is a sectional view taken along line CC of FIG. 6;

8 is a sectional view taken along line DD of FIG. 6;

[Explanation of symbols]

 1 Printing Pattern 2 Cell 2a Small Cell 2b Small Cell 2c Small Cell 3 Transfer Roller (Base) 5 Printing Paint 6 Blade 7, 8 Transfer Target 9 Pressing Roller 10 Container 12 Frame

Claims (4)

[Claims] 1. A substrate having a print pattern composed of an aggregate of a plurality of cells, a paint supply means for supplying a print paint into the cells of the base, and a transfer target being moved onto the print pattern of the substrate. A moving unit and a pressing unit that presses the transferred body moved onto the print pattern by the moving unit toward the substrate side, the print pattern of the substrate at the rear portion with respect to the moving direction of the substrate. An electronic component manufacturing device in which the opening area of the cell is smaller than the opening area of the cell in the front part. 2. The electronic component manufacturing apparatus according to claim 1, wherein the depth of the cells in the rear portion of the print pattern is smaller than the depth of the cells in the front portion. 3. The electronic component manufacturing apparatus according to claim 1, wherein the pitch between the small cells in the rear part of the print pattern and the large cells in the front part thereof is substantially equal to that of the large cells in the front part. 4. The manufacturing apparatus for an electronic component according to claim 1, wherein the opening edge of the small cell at the rear part of the print pattern is smaller than the curvature of the opening edge of the large cell at the front part.