JPH01314404A - Manufacture for electric resonator - Google Patents

Abstract

PURPOSE:To easily provide the electrode film of desired thickness by injecting conductive paste to local spots such as the through-hole of a high frequency magnetic conductor, a slit or a rugged surface, etc., and baking the conductive paste to be stuck to the local surface. CONSTITUTION:Through-holes 2, 3... are provided to a high frequency magnetic conductor 1 and it is executed to provide the electrode film on an inside surface. For this electrode film, the conductive paste such as silver paste, etc., is injected to the through-holes 2, 3... by dispenser and stuck to the inside surfaces of the through-holes 2, 3.... After that, when baking treatment is executed for the paste at a suitable temperature, the electrode film can be formed in a thin film shape at the degree of 2-15mum. In a similar manner, in a conductor, for which slits 4, 5... are provided, the opening edges of the slits 4, 5... are positioned in a vertical direction. Then, when the conductive paste is injected, the paste is stuck to the internal surface of the slits with the desired thickness. Thus, electrode films 6, 7..., for which the baking treatment of the conductive paste is executed only to the local spots such as the through-holes 2, 3... and slits 4, 5..., etc., can be easily formed with the desired thickness.

Description

DETAILED DESCRIPTION OF THE INVENTION Field of Industrial Application The present invention relates to a method for manufacturing a dielectric resonator, and more particularly, to a method for manufacturing a dielectric resonator in which an electrode film is formed locally such as through holes, slits, or uneven surfaces of a high-frequency ceramic dielectric. The present invention relates to a method applied to manufacturing a resonator.

Conventional technology Conventionally, when manufacturing a dielectric resonator, for example, when forming an electrode film on a high-frequency porcelain dielectric, electroless plating, vapor deposition, sputtering, and printing methods (Utility Model Publication No. 61-43285) were used.
It is known to apply the dip method (Japanese Patent Application Laid-open No. 111404/1983), in which an in-unit telephone body is dipped into a liquid tank of Ag paste to adhere Ag paste.

Problems to be Solved by the Invention By the way, some of the above-mentioned dielectric resonators are so-called multi-stage products in which electrode films are provided only locally in through-holes, slits, etc. of the high-frequency ceramic dielectric. electroless plating,
To form it by vapor deposition, sputtering, printing, or dip coating, the surface of the porcelain dielectric except for the area where the electrode film is to be provided can be covered with a mask or coated with a suitable masking agent, but this requires extremely labor-intensive work. It is not very practical.

Alternatively, it is possible to punch out a sheet-like conductive thin material and press-bond it locally on the porcelain dielectric material, but this still requires a labor-intensive work.

SUMMARY OF THE INVENTION An object of the present invention is to provide a method of manufacturing a single-electrode device that can extremely easily form electrodes on a localized surface.

Means for Solving the Problems In the method of manufacturing a galvanic resonator according to the present invention, a conductive paste is injected into localized areas such as through holes, slits, or uneven surfaces of a high-frequency ceramic telephone body, and the conductive paste is applied to the localized surfaces. The attached conductive paste is baked to form an electrode film of a desired thickness.

Function: In this method of manufacturing a telephone resonator, by injecting a conductive paste with a dispenser or the like, the electrode film can be locally attached to a desired thickness on the high frequency BN dielectric. By processing, it becomes possible to easily form an electrode film only on local surfaces.

Embodiments will now be described with reference to the accompanying drawings.

This method for manufacturing a telephone resonator is exemplified in the case of manufacturing a telephone resonator, and is applied to locally forming an electrode film on a high frequency ceramic telephone body serving as a base thereof. The high-frequency ceramic telephone body serving as the base may be formed into a cylindrical shape with a central through hole, or may be formed into a rectangular block shape as shown in the drawings.

The high frequency Ia device electric body 1 shown in Fig. 1 has through holes 2.3.
... are provided, and an electrode film is provided on the inner surface of each through hole 2,3.... This electrode film is made by injecting a conductive paste such as silver paste into the through holes 2.3... with a dispenser D, and attaching it to the inner surface of the through holes 2.3..., and then baking it at an appropriate temperature. 2 if processed
It can be formed into a thin film of about 15 μm. When providing an electrode film in the through holes 2.3..., the through holes 2.3...
3. is positioned vertically and the conductive paste is injected. When the conductive paste is injected into the through-holes 2, 3, . . . , the conductive paste flows down the inner surface and can be deposited in a thin film having a desired thickness depending on the amount of injection. Similarly, in the case of the high-frequency round device 1 shown in FIG. 2, which is provided with slits 4.5, the open ends of the slits 4.5 are positioned vertically, and the dispenser If the conductive paste is injected from above at ◯, the conductive paste can be adhered to the inner surfaces of the slits 4, 5, . . . to a desired thickness.

Note that the excess conductive paste leaking from the lower end sides of the through holes 2.3 and slits 4.5 can be collected and used separately. The conductive paste can also be applied to a desired thickness by using a spray gun or the like instead of a dispenser and inserting the nozzle tip locally to spray or inject the conductive paste.

When manufacturing a telephone resonator in this way, as shown in FIG.
．． Electrode II with conductive paste baked only on 5...! 6..., 7... can be easily formed to a desired thickness.

In addition, in the above-mentioned embodiment, the case where a telephone resonator is manufactured is illustrated, but the '2I
! By providing a polar film locally on an uneven surface, the method can also be applied to the production of high voltage capacitors, varistors, etc.

Effects of the Invention As described above, according to the method for manufacturing an H-body resonator according to the present invention, it is possible to easily provide an electrode film of a desired thickness locally on a high-frequency 611 telephone body without much effort. It is something to do.

[Brief explanation of the drawing]

FIG. 1.2 is an explanatory diagram of the process of injecting a conductive paste by the method according to the present invention, and FIG. 3 is a perspective view of a heavy-body resonator obtained by the same method. 1: High frequency porcelain electric body, 2.3..., 4.5...;
Local areas of the magnetic telephone body, 6..., 7...; electrode film.

Claims (1)

[Claims] Conductive paste is injected into local areas (2, 3..., 4, 5...) such as through holes, slits, or uneven surfaces of the high-frequency ceramic dielectric (1), and the conductive paste that adheres to the local surfaces is A method for manufacturing a dielectric resonator, characterized in that it is baked to form an electrode film (6..., 7...) of a desired thickness.