JPH08190866A - Manufacture of insulating substrate - Google Patents

Abstract

PURPOSE: To provide a method for manufacturing a low-cost insulating substrate, whereby manufacturing efficiency is enhanced and machining accuracy can readily be obtained. CONSTITUTION: An original printing plate 11 having ink-permeable portions 13 each taking the form of a partition 12 to be formed is mounted on the surface of a substrate body 10 and is closely contacted with the surface of the substrate body 10 by magnetically attracting it from the back of the substrate body 10. Next, ink 14 is rubbed against the original printing plate 11 to provide printing on the substrate body 10 through the ink-permeable portions 13. Next, the ink 14 printed on the substrate body 10 is solidified.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a method for manufacturing an insulating substrate, and more particularly to a method for manufacturing an insulating substrate in which partition walls are formed on the surface of the substrate body of the insulating substrate using a printing original plate.

[0002]

2. Description of the Related Art In recent years, insulating substrates have been used, for example, in flat panel displays (here, LCD, EL, P.
Used as a generic term for DP, VF, etc. ) And CRT (Cat
In an image display device such as a hode-ray tude, it plays a particularly important role as a factor that influences its performance. The PDP (plasma panel display) uses an insulating substrate for a light emitting portion, and has advantages of power consumption efficiency, easy miniaturization, and no image flicker, jitter, or distortion, and is commercialized. Has been the subject of research towards.

As shown in FIG. 5, the general structure of this PDP is such that a plurality of wire-like positive electrodes 2 are arranged on a rear substrate 1 at regular intervals in parallel with each other, and are arranged in a direction intersecting with the respective positive electrodes 2. A plurality of plate-shaped negative electrodes 3 are arranged parallel to each other at regular intervals. The rear substrate 1 is a so-called rear glass, and an electrode groove 4 having a depth of about 100 to 200 μm for accommodating the positive electrode 2 is 50 μm on the upper surface (upper side in the drawing).
A plurality of them are formed in parallel with each other at regular intervals with a certain width.

[0004]

By the way, in the PDP, a high-quality image can be obtained by installing the positive electrode 2 and the negative electrode 3 at a high density while maintaining the insulation between the adjacent positive electrodes 2. Since it can be formed, a processing technique for the rear substrate 1 for forming the electrode grooves 4 at a high density is required particularly for improving the installation density of the positive electrodes 2.

However, the formation of the electrode groove 4 has been conventionally performed.
It is common to subject the surface of the back substrate 1 to processing such as shot blasting or polishing, and it is difficult to improve the formation density of the electrode grooves 4. That is, due to processing defects such as fragility of glass, the processing efficiency of glass by the above-described processing method has been conventionally low. Therefore, if the number of the electrode grooves 4 formed on the back substrate 1 is increased, there is a concern that the manufacturing efficiency of the back substrate 1 may be significantly reduced and the manufacturing cost may be increased. Therefore, there has been a demand for development of a method for manufacturing an insulating substrate that is low in cost and has improved manufacturing efficiency.

In view of the above problems, it has been studied to form a partition wall for partitioning the positive electrodes 2 on the surface of the rear substrate 1 by using a printing technique. However, when the partition wall is solidified, the back surface of the ink becomes a partition wall. It was difficult to secure the thickness dimension of the substrate 1 at the time of printing, and the shielding between the positive electrodes 2 was insufficient, so that the above problems could not be solved.

Further, a technique of forming a partition wall by forming a groove in the rear substrate 1 by etching has been studied, but the height of the partition wall that can be formed is usually about 30 μm, which is a problem at present. It was something that could not be resolved.

The PD of the insulating substrate which requires formation of partition walls
Also in the application examples other than P, securing the protrusion size of the partition wall has been a difficult problem. On the other hand, in an application example in which a large number of fine holes are formed in an insulating substrate, such as a shadow mask of a CRT, on the contrary, in view of the low efficiency of forming holes, the insulating substrate is coated using a printing technique. Although it is possible to consider a countermeasure to form a small area, in a relatively wide area, in the case of the shadow mask, the projection size is 10 μm and the width is 20 to 50 μm.
m, pitch 140 to 20 μm), it is difficult to ensure accuracy, and if the photographic technology used for forming semiconductor circuits is applied, the cost will increase significantly. Occurs.

The present invention has been made in view of the above circumstances, and it is an object of the present invention to provide a low-cost method of manufacturing an insulating substrate which improves manufacturing efficiency and easily obtains processing accuracy.

[0010]

In order to solve the above problems, in the method of manufacturing an insulating substrate according to the present invention, a printing original plate having an ink permeation portion having a planar shape of a partition wall to be formed is used as a substrate of the insulating substrate. A first step of mounting on the surface of the main body and adsorbing the printing original plate from the back side of the substrate main body by magnetic force to bring it into close contact with the surface of the substrate main body; and the substrate main body through the ink permeation section by rubbing ink on the printing original plate. The method for solving the above-mentioned problems is provided with a second step of printing on the substrate and a third step of solidifying the ink printed on the substrate body.

In the method for manufacturing an insulating substrate according to a second aspect, in the second step, the rubbing of ink is performed by reciprocating movement of a squeegee that slides on the surface of the printing original plate.

In the method for producing an insulating substrate according to a third aspect of the present invention, the ink is formed by dispersing particles of an electrically insulating substance in a base material.

According to a fourth aspect of the present invention, there is provided the method for producing an insulating substrate according to the third aspect, wherein at least a part of the particles of the substrate is made of the same material. It was used as a solution to the problem.

According to a fifth aspect of the present invention, there is provided a method for producing an insulating substrate according to the third aspect, wherein the third step is a step of firing particles in the ink integrally with the substrate. That is the means for solving the above problems.

A method for manufacturing an insulating substrate according to a sixth aspect is the method for manufacturing an insulating substrate according to any one of the first to fourth aspects, wherein in the third step, the ink is irradiated with far infrared rays. The above-mentioned steps are defined as means for solving the above-mentioned problems.

In the method of manufacturing an insulating substrate according to claim 7, the ink contains an ultraviolet curable substance,
The above step is a step of irradiating the ink with ultraviolet rays to cure the ultraviolet curable substance, which is the means for solving the problems.

In the method for manufacturing an insulating substrate according to claim 8, the ink contains an electrically conductive substance, and the third step is a step of cooling and solidifying the molten electrically conductive substance. This is the means for solving the above problems.

According to a ninth aspect of the present invention, in the method for producing an insulating substrate, after the completion of printing the ink on the substrate body, the attraction force due to the magnetic force on the back side of the substrate body is weakened and the printing original plate body is attracted by the magnetic force from the back side of the substrate. The provision of the fourth step of detaching from the main body was the means for solving the above-mentioned problems.

According to a tenth aspect of the present invention, there is provided a method for producing an insulating substrate, wherein the first ink is solidified in the third step of the method for producing an insulating substrate according to any one of the first to ninth aspects. The above-mentioned step and the fifth step of printing the ink by the second step are provided as means for solving the above problems.

The method for manufacturing an insulating substrate according to claim 11 is the method for manufacturing an insulating substrate according to any one of claims 1 to 10, wherein the substrate body is a cloth or leather made of a natural material. This is the means for solving the above problems.

[0021]

According to the method of manufacturing an insulating substrate according to claim 1, since the printing original plate is adsorbed on the substrate main body, the ink is rubbed against the printing original plate and the ink is printed on the substrate main body. Displacement between the substrate body and the substrate body is prevented, and the accuracy of the ink on the substrate body and the printing position accuracy of the ink are secured. The ink printed on the board body is
A three-dimensional shape with the ink permeation portion as a mold is formed and solidified to be in a state of being projected on the surface of the substrate body.

According to the second aspect of the present invention, there is provided a method of manufacturing an insulating substrate, whereby the squeegee reciprocates relative to the printing original plate to reliably print the ink on the substrate body. Further, since the printing original plate is in surface-contact with the substrate main body in a pressure contact state, the displacement of the printing original plate and the substrate main body in the surface direction is prevented when the squeegee reciprocates.

According to the third aspect of the present invention, there is formed the electrically insulating partition wall. When the substrate body is made of an electrically insulating material, the partition wall can have substantially the same properties as the substrate body, and the integration between the partition wall and the substrate body is ensured. It

According to the insulating substrate manufacturing method of the present invention, since the barrier ribs and the substrate body have similar properties, the barrier ribs and the substrate body are surely integrated with each other, and the barrier ribs and the substrate body are secured together. It is possible to form an insulating substrate having substantially uniform electrical and physical properties.

According to the manufacturing method of the insulating substrate of the fifth aspect, the ink printed on the substrate body is burned to evaporate the base material and burn the partition walls made of particles in the ink.

According to the method of manufacturing an insulating substrate of claim 6, the surface layer and the inside of the ink are uniformly heated and solidified by the action of far infrared rays. Further, since the substrate body is also heated at the same time as the ink is heated, the components in the ink and the substrate body are integrated with the solidification of the ink, and the solidification time can be shortened.

According to the method for manufacturing an insulating substrate of claim 7, the ink is solidified by the curing of the ultraviolet curable substance, so that the heat input to the ink and the substrate body is small, and the distortion and deformation due to the heat input and cooling are caused. There is no worry.

According to the method of manufacturing an insulating substrate of claim 8, the ink printed at a predetermined position is heated at the time of printing or after printing to melt the electrically conductive substance in the ink, and then cooled in the third step. Solidify.

According to the method of manufacturing an insulating substrate of claim 9, after the printing of the ink on the substrate body is completed, the magnetic force generated by the magnetic source on the back side of the substrate body is weakened or the magnetic source is used as the substrate. Keep away from the main body to weaken the adsorption force to the printing original plate. Since the separation of the printing original plate from the substrate main body is caused by the magnetic force from the back surface of the printing original plate, the attraction force acts over a wide range of the printing original plate, and the printing original plate can be stably released without causing distortion or the like. .

According to the manufacturing method of the insulating substrate of the tenth aspect, a thicker partition wall is formed by printing the ink again on the solidified ink. Also,
By using different kinds of ink between the fifth step and the second step, it is possible to form partition walls of various properties.

According to the eleventh aspect of the manufacturing method of the insulating substrate, the ink is printed with the leather or the cloth being sandwiched by the contact force between the printing original plate and the substrate body.

[0032]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of a method of manufacturing an insulating substrate according to the present invention will be described below with reference to FIGS. For convenience of explanation, the upper side of FIGS. 1 and 2 is an insulating substrate (hereinafter, referred to as “PDP”).
(Abbreviated as “rear substrate”). The PDP
The rear substrate for use has a structure in which a large number of partition walls 12 are formed on the surface of the substrate body 10 by applying a printing technique using the printing original plate 11.

The substrate body 10 is a glass plate material and has a flat surface.

The printing original plate 11 is a thin plate material having a thickness of several 100 μm, and a groove-shaped ink permeation portion 13 having a partition wall 12 shape to be formed on the surface of the substrate body 10 is penetrated in the thickness direction. ing. As the printing original plate 11,
It is possible to use (1) a printing original plate 11 formed by dispersing and fixing ferromagnetic powder in a binder, or (2) a printing original plate 11 in which an ink permeation portion 13 is formed on a thin plate made of a ferromagnetic material. is there.

(1) As the one in which ferromagnetic powder is dispersed and fixed in a binder, ink permeation forming a printing pattern of a mesh screen woven with synthetic fibers such as nylon and polyester, or fine metal wires such as stainless steel Part 13
It is possible to use, for example, a resin layer to which ferromagnetic powder is added, which is formed in other portions. In this case, as a method for forming the resin layer, a well-known photoresist to which ferromagnetic powder is added is applied to the screen, and the screen is exposed to an inverted shape of a printing pattern, and then an unnecessary portion is removed. A method of forming the ink permeation portion 13 by using the above method is preferable. As the ferromagnetic material, any of the conventionally known ferromagnetic materials such as iron, cobalt, nickel or alloys thereof, oxide-based magnetic materials, and compound-based magnetic materials can be used. If sufficient tensile strength can be obtained only with the resin layer, the mesh screen is omitted and metal powder-added resin (so-called rubber magnets and plastic magnets are included)
The printing original plate 11 may be formed only from the above. In that case, the printing original plate 11 is etched or machined to form an opening portion (ink permeation portion) forming a printing pattern. Further, the mesh screen may be formed of a ferromagnetic material.

(2) Ink penetrating part 13 on a thin ferromagnetic metal plate
For forming the ink, a thin plate of a ferromagnetic metal such as soft iron, cobalt alloy, nickel alloy or the like may be punched and processed by a method such as laser processing or etching to form the ink penetrating portion 13 forming a print pattern. .
A metal mesh plate on which the ink permeation part 13 is formed may be used by adhering a reinforcing mesh screen.

The partition wall 12 is formed by solidifying the ink 14 to be printed on the surface of the substrate body 10 by being filled in the ink permeation portion 13 of the printing original plate 11. The ink 14 contains a protein or the like, and glass particles 14b of the same quality as the substrate body 10 are dispersed in a base material 14a which can be solidified from a fluid state by temperature change or the like (see FIG. 2).

The method of manufacturing the insulating substrate of the present invention will be described below. In the method for manufacturing the insulating substrate, a partition wall 12 having a protrusion dimension of several hundred μm is formed on the surface of the substrate body 10 by a so-called screen printing method. First, as shown in FIG. It is mounted on the surface of the substrate body 10, and the printing original plate 11 is adsorbed by the magnetic force of the electromagnet 15 from the back side of the substrate body to be brought into close contact with the surface of the substrate body 10. (First Step) At this time, in the electromagnet 15, the attracting force of the printing original plate 11 is controlled by adjusting the current in a current supply unit (not shown).

Next, as shown in FIG. 2, the ink 14 is supplied to the front side of the squeegee 16 provided on the upper surface of the printing original plate 11 so as to be frictional and slidable in the initial moving direction (the direction of the arrow in the figure) to squeegee. The ink 14 is rubbed against the printing plate 11 by moving 16 and printing is performed on the substrate body 10 through the ink permeation portion 13. (Second step) In the rubbing of the ink 14, the squeegee 16 is rubbed and slid once over the upper surface of the printing original plate 11 to press the ink 14 against the surface of the substrate body 10 in the ink permeation portion 13. In this step, the attraction force of the electromagnet 15 causes the entire surface of the printing original plate 11 to be in pressure contact with the surface of the substrate body 10 to prevent the occurrence of gaps and the like, and a sufficient frictional force is generated in the surface direction. Even when reciprocating while rubbing the surface of the printing plate 11, it is possible to effectively prevent the displacement of the printing original plate 11 and improve the accuracy.

Next, after the energization of the electromagnet 15 is released and the printing original plate 11 is detached from the substrate body 10 (see FIG. 3), the ink 14 printed on the substrate body 10 is dried and solidified.
(Third Step) The ink 14 may be solidified by sintering or the like, depending on the material of the ink 14. In addition, since the ink 14 contains protein during sintering, the volume shrinkage during printing of the ink 14 is less than that of the organic solvent, and the target shape is maintained.

De-energization of the electromagnet 15 is performed by the electromagnet 15
It may be replaced with moving away from the substrate body 10. As a method of separating the printing original plate 11 from the substrate body 10, it is suitable to adsorb the printing original plate 11 from its back surface by magnetic force. According to this method, the suction force acts over a wide range of the printing original plate 11, and the printing original plate 11 can be stably detached without causing distortion or the like. Also,
In this detaching operation, since the printing original plate 11 can be accurately moved along the height direction of the partition wall 12, the partition wall shape is not affected. The printing original plate 11 that has been separated from the substrate body 10 moves to the mounting position on the substrate body 10 again, and is repeatedly used for printing the ink 14 hereinafter. It is also possible to attract the printing original plate 11 with a permanent magnet instead of the electromagnet 15. In this case, the attraction force of the printing original plate 11 is adjusted by moving the permanent magnet toward and away from the substrate body 10.

According to the method of manufacturing an insulating substrate of the present invention,
Ink 14 with respect to the printing original plate 10 in a state where the printing original plate 11 is attracted by the attraction force of the electromagnet 15 and is pressed against the substrate body 10.
Since the rubbing and the printing are performed, even when the thickness of the printing original plate 11 is large, the adhesion of the printing original plate 11 to the substrate body 10 is secured and the displacement in the surface direction is prevented. Rink of ink 14 and ink 14
The printing position accuracy of is secured, and the partition wall 12 of the target shape can be formed with high accuracy and easily on the surface of the substrate body 10.
The manufacturing cost of the back substrate for PDP is reduced and its manufacturing efficiency is improved. In addition, since the ink permeation portion 13 of the printing original plate 11 can be easily designed, the degree of freedom in setting the intervals, shapes, positions of formation of the partition walls 12 is improved.

The method of manufacturing an insulating substrate according to the present invention is
It is also possible to replace the glass particles 14b dispersed in the ink 14 with glass of a different type from the substrate body 10, ceramic particles, or the like. In particular, only the portion of the partition wall 12 that contacts the substrate body 10 is replaced. This is advantageous when the partition wall 12 is formed of a different material, such as a material close to the above and other portions made of an inexpensive insulating resin, and the effect of the manufacturing efficiency of the rear substrate for PDP is remarkable.

The present invention is not limited to the use of printing ink on paper. For example, cream solder in which fine solder particles as ink are dispersed in a flux or an organic solvent,
It is also possible to use a resist material used as a mask for producing a printed circuit board, an uncured resin raw material, or the like. In the method for manufacturing an insulating substrate of the present invention, a thick ink coating film can be accurately formed, so that it is particularly suitable for printing each of the above materials in a manufacturing process such as a printed circuit board or a shadow mask of a CRT. is there.

When an ink which can be solidified by natural drying is used, far infrared rays can be used for drying the ink. In the case of this method, the surface layer and the inside of the ink are heated and solidified evenly, so that the residual stress inside the partition wall is small and the quality is stable. Further, since the substrate body is also heated at the same time as the ink is heated, the components in the ink and the substrate body are easily and surely integrated with the solidification of the ink, and the solidification time can be shortened.

When an ink containing an ultraviolet curable substance is used as the ink, the ink is solidified by curing the ultraviolet curable substance. According to this method for manufacturing an insulating substrate, heat input to the ink and the substrate body is small, there is no fear of distortion or deformation due to heat input or cooling, and the partition wall formation accuracy is further improved.

When an ink containing an electrically conductive substance is used as the ink, the ink printed at a predetermined position is heated at the time of printing or after the printing to melt the electrically conductive substance in the ink, and then cooled and solidified. . According to this method for manufacturing an insulating substrate, for example, when solder is used as the electrically conductive substance, when the solder melts, the solder flows and the grooves formed on the substrate body or the gaps between the members placed on the substrate body, etc. The adhesiveness can be surely ensured by entering the gaps, and an excellent effect is exhibited particularly in the manufacture of semiconductor elements.

The substrate body may be a cloth made of leather or a natural material. The substrate body formed of these materials is generally difficult to secure the flatness at the time of printing, but according to the manufacturing method of the present invention, the leather or cloth which is the substrate body is formed by the close contact force between the printing original plate and the substrate body. Since the ink is printed in the sandwiched state, it is possible to prevent the displacement of the substrate main bodies at the time of printing, and it is possible to easily perform the thick printing on the substrate main bodies even if the ink has a large area. A non-magnetic material is selected as the cloth or leather.

By mixing the fine powder of the ferromagnetic material described above with the ink, the ink held in the ink permeation portion is magnetically attracted toward the sheet material and the ink is ejected from the ink permeation portion. It is also possible to improve the productivity. If unevenness is provided in the ink permeation portion 13, the partition wall 12 having various shapes can be formed. However, the unevenness in the ink permeation portion 13 is a shape that does not destroy the printed ink shape when the printing original plate 11 is separated.

As shown in FIG. 4, the partition wall 12 has a homogeneous layer 17 containing a large amount of glass particles 14b of the same quality as that of the substrate body 10 only in the portion in contact with the substrate body 10, and the other portion is different from the substrate body 10. The heterogeneous layer 18 made of a material can also be used. The partition wall 12 is provided in the ink permeation portion 13
It can be formed by a method such as rubbing the ink onto the surface in two steps. Further, as the heterogeneous layer 18, for example, an inexpensive insulating resin can be considered, and in this case, the manufacturing cost of the back substrate for the plasma display panel can be further reduced.

[0051]

As described above, according to the method of manufacturing an insulating substrate according to the first aspect of the present invention, the ink penetrating portion having a ferromagnetic material and having a planar shape of the partition to be formed is formed. The first step of mounting the printing original plate having the printing original plate on the surface of the substrate main body of the insulating substrate, and adhering the printing original plate to the surface of the substrate main body by magnetic attraction from the back side of the substrate main body; and rubbing the printing original plate with ink. A second step of printing on the substrate body through the ink permeation section and a third step of solidifying the ink printed on the substrate body, in a state in which the printing original plate is magnetically attracted and pressed against the substrate body. Since the ink is rubbed against the printing original plate and printed,
Even when the thickness of the printing original plate is large, the adhesion of the printing original plate to the substrate body is secured and the deviation in the surface direction is prevented. The partition wall having the desired shape can be formed accurately and easily on the surface of the substrate body, and the manufacturing cost of the insulating substrate can be reduced and the manufacturing efficiency thereof can be improved. In addition, since it is easy to design the ink permeation portion in the printing original plate, there is an excellent effect that the degree of freedom in setting the partition spacing, shape, formation position, etc. is improved.

According to the method for manufacturing an insulating substrate of claim 2, in the second step, the rubbing of the ink is performed by the reciprocating movement of the squeegee that slides on the surface of the printing original plate. The printing accuracy is further improved by forming the partition wall. Further, since the printing original plate is in surface contact with the substrate body in a pressure contact state, when the squeegee reciprocates, a deviation in the surface direction between the printing original plate and the substrate body is prevented, and high manufacturing accuracy can be easily obtained. .

In the method for manufacturing an insulating substrate according to claim 3, since the ink comprises particles of an electrically insulating substance dispersed in a base material, an electrically insulating partition wall can be easily formed on the substrate body. The insulating substrate having partition walls can be easily manufactured at low cost.

In the method for manufacturing an insulating substrate according to claim 4, at least a part of the particles and the substrate body are made of the same material, and since the partition wall and the substrate body have similar properties, the partition wall and the substrate body are separated from each other. It is possible to easily and inexpensively manufacture an insulating substrate in which the partition wall and the substrate body have substantially the same electrical and physical properties while the integration is ensured.

According to the fifth aspect of the present invention, in the method for manufacturing an insulating substrate, the step of forming the partition wall is a step of firing particles in the ink integrally with the substrate, and by burning the ink printed on the substrate body. Since the base material is evaporated and the partition wall composed of particles in the ink is fired, it is possible to more surely integrate the substrate body and the partition wall, and it is easy to make the electrical properties and physical properties of the insulating substrate uniform. is there.

According to the insulating substrate manufacturing method of the sixth aspect, the ink is solidified by irradiation with far infrared rays.
The surface layer and the inside of the ink are uniformly heated and solidified, and the residual stress inside the partition wall is small and the quality is stable. Further, since the substrate body is heated at the same time as the ink is heated, the components in the ink and the substrate body are easily and surely integrated with the solidification of the ink. Further, it is possible to shorten the solidification time.

According to the method for manufacturing an insulating substrate of claim 7, since the ink is solidified by the curing of the ultraviolet curable substance, the heat input to the ink and the substrate body is small, and the distortion and deformation due to the heat input and cooling are caused. Therefore, the accuracy of forming the partition wall is further improved.

According to the manufacturing method of the insulating substrate of the eighth aspect, the ink printed at a predetermined position is heated at the time of printing or after printing to melt the electrically conductive substance in the ink and then cool and solidify the ink. When the conductive material melts, it flows and enters the grooves formed on the substrate body or the gaps between the members placed on the substrate body to ensure the adhesiveness.

According to the manufacturing method of the insulating substrate of the ninth aspect, the printing original plate is magnetically attracted from the back surface thereof and is separated from the substrate main body, so that the attraction force acts over a wide range of the printing original plate. The separation can be performed stably without causing distortion in the printing original plate, and since it does not affect the ink shape after printing, the accuracy of forming partition walls is further improved and the printing original plate is repeatedly used for a long period of time. Even in such a case, the printing accuracy of the ink can be secured.

According to the manufacturing method of the insulating substrate of the tenth aspect, the thicker partition wall can be easily formed with high accuracy by printing the ink again on the ink which has been solidified. At the same time, by printing different types of ink on the solidified ink, it is possible to form partition walls having various properties electrically, magnetically, and visually.

According to the method of manufacturing an insulating substrate as set forth in claim 11, ink is printed while the leather or cloth, which is the substrate body, is sandwiched by the contact force between the printing original plate and the substrate body. The deviation of the substrate bodies can be prevented, and thick ink can be easily printed on these substrate bodies in a large area.

[Brief description of drawings]

FIG. 1 is a diagram showing an embodiment of a method for manufacturing an insulating substrate according to the present invention, which is a side cross-sectional view showing a step (first step) of placing and adsorbing a printing original plate on the surface of a substrate body.

FIG. 2 is a side sectional view showing the step of rubbing the ink into the ink permeation portion (second step) in the example.

FIG. 3 is a perspective view showing an insulating substrate manufactured according to the same embodiment.

FIG. 4 is a view showing an insulating substrate manufactured according to the same example, and is a perspective view showing a mode in which a partition wall composed of a homogeneous layer and a heterogeneous layer is provided.

FIG. 5 is a perspective view showing a plasma display panel.

[Explanation of symbols]

 10 substrate body 11 printing original plate 12 partition wall 13 ink permeation part 14 ink 14a base material 14b glass particles

 ─────────────────────────────────────────────────── ─── Continuation of the front page (72) Inventor Kim Yong-seo 206-138 Nengno-dong, Dongdaemun-gu, Seoul, Republic of Korea

Claims (11)

[Claims] 1. A method of manufacturing an insulating substrate having a partition wall provided on the surface thereof, wherein a printing original plate having an ink permeation portion having a planar shape of the partition wall to be formed is mounted on the surface of the substrate body of the insulating substrate. Then, a first step of adsorbing the printing original plate from the back side of the substrate main body with a magnetic force to bring it into close contact with the surface of the substrate main body, and a step of printing on the substrate main body through the ink permeation section by rubbing ink on the printing original plate And a third step of solidifying the ink printed on the substrate body, the method for producing an insulating substrate. 2. The method for manufacturing an insulating substrate according to claim 1, wherein in the second step, rubbing of ink is performed by reciprocating movement of a squeegee that slides on the surface of the printing original plate. A method for manufacturing an insulating substrate. 3. The method for producing an insulating substrate according to claim 1, wherein the ink comprises particles of an electrically insulating substance dispersed in a base material. Method. 4. The method for manufacturing an insulating substrate according to claim 3, wherein at least a part of the particles and the substrate body are made of the same material. 5. The method for manufacturing an insulating substrate according to claim 3, wherein the third step is a step of firing particles in the ink integrally with the substrate. Production method. 6. The method for manufacturing an insulating substrate according to claim 1, wherein the third step is a step of irradiating ink with far infrared rays. Substrate manufacturing method. 7. The method for manufacturing an insulating substrate according to claim 1, wherein the ink contains an ultraviolet curable substance, and in the third step, the ink is irradiated with ultraviolet rays. And a step of curing the ultraviolet curable substance. 8. The method for manufacturing an insulating substrate according to claim 1, wherein the ink contains an electrically conductive substance, and the third step cools the melted electrically conductive substance. A method of manufacturing an insulating substrate, characterized in that the method comprises a step of solidifying by heating. 9. The method for manufacturing an insulating substrate according to claim 1, wherein after the completion of printing the ink on the substrate body, the attraction force by the magnetic force on the back side of the substrate body is weakened.
A method of manufacturing an insulating substrate, comprising a fourth step of magnetically attracting the printing original plate body from the back side thereof to separate it from the substrate body. 10. The method for producing an insulating substrate according to claim 1, wherein the ink, which has been solidified in the third step, is subjected to the first step and the second step. A method of manufacturing an insulating substrate, comprising a fifth step of printing ink. 11. The method for manufacturing an insulating substrate according to claim 1, wherein the substrate body is a cloth or leather made of a natural material. .