JPH06252532A - Manufacture of wiring board - Google Patents

Abstract

PURPOSE:To create a wiring board quickly and easily by creating a specific wiring pattern using a computer and then printing a wiring pattern with original size on a flexible insulation member based on that information. CONSTITUTION:A computer 11 is constituted of a body 11a, an input part 11b, and a display 11c and then the body 11a and a printer 12 which is a printing device are mutually connected. The computer 11 inputs data to the body 11a from the input part 11b while confirming the display 11c and creates the wiring pattern of a specific circuit, thus playing a role of a CAD system. Then, the information of the created wiring pattern is transmitted to a printer 12. The printer 12 prints a wiring pattern 13b with original size on a flexible insulation material 13a according to a conductive printing member and then delivers it as a wiring board 13. thus manufacturing the wiring board quickly and easily and at the same time verifying circuit operation easily.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a wiring board manufacturing method for forming a wiring pattern on an insulating substrate.

[0002]

2. Description of the Related Art In recent years, wiring patterns formed on printed wiring boards used have become higher in density and finer due to higher functionality of electronic equipment. Therefore, a wiring pattern is drawn by a CAD (Computer Aided Design) system.

Therefore, the manufacturing of a conventional wiring board will be briefly described. First, the artwork of the wiring circuit pattern is C
Created by AD system. Plate making is performed based on the circuit information input to the CAD system.

For the plate making, for example, there is a case where a CAD system prints out on paper by a printer and the film is photographed to produce a film original plate, or a CAD system draws on a film by a photoplotter to produce an original plate. .

The original film film produced by plate making is stencil-sized to the size of a production panel, and a screen plate for printing is produced based on this. Using this printing screen plate, a circuit pattern is printed on an insulating substrate such as an epoxy-based print board or a polyethylene-based film, and a wiring board is appropriately produced by punching or the like.

As described above, the wiring board is manufactured by various steps from the creation of the pattern by the CAD system, and the appearance inspection is performed.

[0007]

By the way, when confirming the circuit operation of a wiring board, a universal printed circuit board or the like is used to mount electronic components and perform code wiring for each of them before manufacturing the wiring board. It is carried out by operating the system, and the design is changed if necessary.

As described above, since the wiring board is manufactured by various steps as described above, the mounting board must be manually manufactured to confirm the circuit operation before the wiring board is manufactured, which is complicated. There is also a problem that it takes a long time.

Therefore, the present invention has been made in view of the above problems, and an object of the present invention is to provide a method of manufacturing a wiring board, which is capable of easily forming the wiring board in a short time.

[0010]

According to the present invention, first, a wiring pattern of a predetermined circuit is created by a computer. Then, the information of the created wiring pattern is sent from the computer to the printing apparatus. Then, in the printing apparatus, based on the information, the above-mentioned problem is solved by printing the wiring pattern of the full size on the flexible insulating member by the conductive printing member.

[0011]

As described above, the wiring board prepares a wiring pattern of a predetermined circuit by the computer, sends the information to the printing device, and the printing device conducts the conductive pattern on the flexible insulating member based on the information. A full-scale wiring pattern is printed with a flexible printing member.

That is, the wiring board on which the conductor wiring pattern of the original size is already formed on the insulating member is discharged by the printing device. In this way, the wiring board can be easily manufactured in a short time.

When a circuit is to be verified, it is possible to easily verify it by fixing a predetermined electronic component on the wiring pattern of the wiring board.

[0014]

DESCRIPTION OF THE PREFERRED EMBODIMENTS FIG. 1 shows a block diagram of an embodiment of the method of the present invention. FIG. 1 shows a system for carrying out the method of the present invention. A computer 11 comprises a main body 11a, an input section 11b, and a display 11c.
And a printer that is a printing device (for example, a page printer) 1
Two are interconnected.

The computer 11 has a display 11c.
While confirming the above, data is input from the input unit 11b to the main body 11a to create a wiring pattern of a predetermined circuit, which serves as a so-called CAD system. Then, the information on the printed wiring pattern is sent to the printer 12.

The printer 12 has a flexible insulating member (described later) 13a based on information from the computer 11.
A wiring pattern 13b of a full size is printed on the upper surface by a conductive printing member (described later), and the printed wiring board 13 is discharged.

Here, FIG. 2 shows an explanatory view of the printing principle in the printer of FIG. In FIG. 2, the printer 12
The photoconductive insulator (photosensitive drum) 21 rotates clockwise in the drawing while being charged with positive charges by the charging unit 22 which supplies a positive voltage of a predetermined value. On the photosensitive drum 21, an optical image corresponding to the information of the wiring pattern of the original size is formed by the light source 23
More illuminated. As the light source 23, for example, the LED array described above on the ceramic substrate is used with one LED (light emitting diode) element having a predetermined number of dots as one chip.

Then, the toner 25, which is a printing member, adheres to the optical image portion (electrostatic latent image) exposed by the light source 23 of the photosensitive drum 21 from the developing roller 24a of the developing section 24.
In this case, the toner 25 is a conductive one in which magnetic powder such as iron powder is mixed, and is charged to the same polarity as the photosensitive drum 21. Although not shown, the photosensitive drum 21 and the developing roller 24a are biased with a predetermined voltage value.

The photosensitive drum 21 to which the conductive toner 25 is attached is transferred to the sent flexible insulating member 13a in the transfer portion 26 which supplies a negative voltage of a predetermined value.
The insulating member 13a is fixed with the wiring pattern 13b as a conductive toner image in the fixing section 27, and is discharged as a full-sized wiring board 13.

Here, the insulating member 13a is formed of paper or a film of synthetic resin. For example, as the paper, general plain paper, paper having an appropriate thickness, or paper having appropriate heat resistance is used. In the case of a film, a heat resistant one, for example, a polyethylene one is selected.

Since the wiring pattern 13b is formed by the above-mentioned printing method, the line width and pattern pitch of the pattern can be freely formed from a few μm to what is called solid coating.

It should be noted that the photosensitive drum 21 is removed of excess charges by the charge eliminating portion 28 to which an AC power is supplied,
The surface is cleaned by the cleaning unit 29, and the charge is removed again by the optical charge removing unit 30.

Therefore, FIG. 3 shows an explanatory diagram for confirming the circuit operation of the wiring board according to the present invention. In FIG. 3 (A),
The IC 31a, the resistor, the IC 31a, the resistor,
An electronic component for surface mounting such as a chip component 31b such as a capacitor is placed.

Then, as shown in FIG. 3B, the terminal portion of each electronic component on the wiring pattern 13b is fixed by the adhesive 32. The adhesive 32 is an insulating material that is generally used, and for example, a rubber-based or epoxy-based adhesive is used.

In this way, the electronic components are mounted on the wiring board 13 and the circuit operation is verified by energization.
If there is any inconvenience in the circuit operation, the design is appropriately changed, and if there is no inconvenience, the production shifts to the production of an insulating substrate such as a board as in the conventional case. When a film is used for the insulating member in the wiring board 13 manufactured by the method of the present invention, it may be used as a verification of the circuit operation as described above, or may be a practical board as a flexible printed board, for example. Good.

As described above, the wiring pattern created by the computer 11 is printed on the paper or film by the printer 12 with the conductive toner 25 having a full-scale size, and the one discharged from the printer 12 is used as the wiring board. ,
The wiring board 13 can be easily manufactured in a short time,
The circuit operation can be easily verified.

By the way, in the above embodiment, the printer 12 of the type in which the powdery member of the toner is used as the printing member has been described as the printing device. Alternatively, an inkjet printer that ejects ink onto the insulating member may be used. In this case, an oil-based ink having a high electroconductivity mixed with magnetic powder, or an ink colored with a conductive fluid such as an electrolyte solution is used.

[0028]

As described above, according to the present invention, a wiring pattern produced by a computer is printed at a full size on an insulating member by a conductive printing member by a printing device, and the discharged one is a wiring board. By doing so, the wiring board can be easily manufactured in a short time, and the circuit operation can be easily verified.

[Brief description of drawings]

FIG. 1 is a configuration diagram of an embodiment of the present invention.

FIG. 2 is an explanatory diagram of a printing principle in the printer of FIG.

FIG. 3 is an explanatory diagram of circuit operation confirmation of the wiring board according to the present invention.

[Explanation of symbols]

 11 computer 11a main body 11b input section 11c display 12 printer 13 wiring board 13a insulating member 13b wiring pattern 25 toner 32 adhesive

Claims (3)

[Claims] 1. A step of creating a wiring pattern of a predetermined circuit by a computer, a step of sending information of the created wiring pattern from the computer to a printing apparatus, and the printing apparatus based on the information. A method of manufacturing a wiring board, comprising: a step of printing the wiring pattern of a full size on a flexible insulating member by a conductive printing member. 2. The method for manufacturing a wiring board according to claim 1, wherein the insulating member is made of paper or synthetic resin. 3. The method for manufacturing a wiring board according to claim 1, wherein the printing member is made of a conductive powdery member or a liquid member.