JPS6031243Y2 - composite parts - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a composite component, particularly a composite component that combines at least two passive elements with independent functions.

The present inventors applied printing lamination technology, and C.

We have proposed various laminated composite parts that combine two or more functions of R.

However, since all of these devices have a certain circuit function as a whole, their applications are limited.

The present invention utilizes the same stacking technology to provide a chip-type multilayer composite component with independent circuit functions, especially C.

The composite component of the present invention has at least two passive element ratios or LR integrated into an electrically insulating element body, especially a laminate of insulating layers, and their lead-out portions are integrated into the element body. The terminal is drawn out at an isolated location on the outer circumferential surface of the terminal, and the external terminal coating is similarly applied in an isolated location.

More specifically, the LC or LR (only the ratio will be described below) composite component is a first laminate in which a plurality of magnetic layers and a linear conductor are alternately laminated so that the conductors form a single spiral pattern as a whole. , and a second laminate in which a dielectric material (or a magnetic material is also possible in some cases) and an electrode are stacked together by weight, and both ends of the conductor and the lead-out end of the electrode are exposed around the laminate and each is placed there. The external terminal layer is coated with the external terminal layer.

Therefore, mutually independent C and L are integrated into a single chip-type composite component, and yet they can be separately connected to external circuits.

In the steel manufacturing process, this part can be manufactured in a consistent process using printing and lamination technology, and productivity can be increased by simultaneously producing many parts in parallel.Furthermore, the completed part is mechanically strong, It offers many benefits, such as convenient handling and the ability to be directly attached to a printed wiring board using external terminals.

Note that the present invention also includes combining yet another laminate (resistor, coil, or capacitor).

The present invention will be described in detail below with reference to the drawings.

Although the description is limited to LC composite parts, this should be considered as an example.

In the following explanation, the magnetic layer and the dielectric layer (sometimes made of a magnetic material to utilize its dielectric constant) are made by pasting magnetic ferrite powder and dielectric material (TiO2, BaTiO3, etc.) using a binder, respectively. Print from
Or it can be obtained by rolling it out and making it into a sheet.

The conductors and electrodes are obtained by printing a paste of metal powder such as Pd or Ag-Pd with a suitable binder onto the magnetic layer or dielectric layer.

After the lamination is completed, they are fired together at a predetermined temperature to be integrated.

Also, the external terminal is Ag. It is assumed that it is formed by applying and baking a paste of Cu, Ni, or other conductor powder.

Now, reference is made to FIGS. 1 to 6 showing the process of manufacturing the L section.

First, as shown in FIG. 1, the magnetic layer 1 is formed into a rectangular shape, and then, as shown in FIG. is exposed on the left side of the magnetic layer 1.

3, the magnetic layer 3 is formed on the entire left side of the magnetic layer 1 while leaving the right end of the conductor 2 exposed, and in the step of FIG. 4, the conductor 4 is almost connected to the conductor 2. The magnetic material layer 5 is printed on the entire right side of the laminate while leaving the left end of the conductor 4 exposed as shown in Fig. 5, and at this time, the right end b' is placed on the right side of the laminate. expose.

Note that the lamination can be repeated as many times as necessary.

Next, FIGS. 7 to 11 show the manufacturing process of part C. Following the process in FIG. 6, a dielectric layer 7 (or magnetic layer) is formed on the entire surface of the laminate, and then The electrode 8 is printed so that the lead end C' is exposed on the upper side of the laminate, and the dielectric layer 9 is further formed on the entire surface.

10, the second electrode 1 is placed on the dielectric layer 9.
0 is printed, and at this time, the lead-out end d' is drawn out to the lower side of the laminate, and finally, the dielectric layer 11 is laminated on the entire surface as shown in FIG. 1'1.

Note that the practical implementation of the above steps is layer 1.3.5. 7°9.11 is performed in parallel using sheets with a wide area, and after the process shown in FIG. 11, they are cut into unit sizes.

Next, necessary firing is performed in a firing furnace to obtain an integrated fired body.

Next, as shown in Fig. 12, the drawers exposed on the periphery -', b',
external terminal coatings a, b, connected to c', d', respectively;
Apply c and d and bake.

The circuit of the laminated component thus obtained has the circuit configuration shown in FIG.

Because composite components are mutually independent, a single component can be used to construct numerous circuits.

For example, LCs can be connected in series or parallel using printed circuit board wiring, and can be connected to other circuits in any manner, allowing for various applications such as bypass, low-pass filters, play lines, etc. becomes.

As shown in FIG. 14, by printing wiring in the pattern shown on the printed circuit board 12 and soldering the four composite parts of this example, the bandpass filter shown in FIG. 15 can be constructed.

Note that A, B, and C indicate corresponding terminals in FIGS. 14 and 15.

FIG. 16 is a plan view showing a modification of the above example, in which a trimming hole 14 for adjusting the L value is formed in the center of the composite part after the process shown in FIG. 11 on the upper side, or a magnetic core is further inserted here. can.

According to this example, the range of applications of composite parts is greatly expanded.

FIG. 17 shows another modification of the example shown in FIGS. 1-13.

In this example, one more electrode 15 is added after the process shown in FIG.
print.

This electrode 15 has a serrated portion, and by scraping off this portion, the C value can be adjusted.

FIG. 18 is a perspective view of an m-composite component according to still another embodiment of the present invention.

The manufacturing process for the composite part of this example is substantially the same as that shown with respect to Figures 1-12, except for Figures 8 and 10.
The process of this example, which corresponds to the process shown in the figure, is different in that the lead-out portions of the electrodes are provided at the lower left corner and the lower right corner instead of at the upper and lower sides of the laminate.

As shown in FIG. 18, external terminals a, which are isolated from each other,
b, C, and d are provided at the corners of the laminate.

Note that at by ct a corresponds to the symbols in FIG.

FIG. 19 is a plan view showing a composite part according to still another embodiment of the present invention.

This figure shows the example of FIG. 18, in which notches 17 that do not reach the internal conductors and electrodes are provided to conveniently regulate the position when mounting on a printed circuit board.

As mentioned above, in addition to the main effects described in the embodiments, the present invention provides various benefits due to being a chip-type composite component.

[Brief explanation of the drawing]

Figures 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, and 11 are the LC composites of the present invention, respectively. Fig. 12 is a perspective view of the pressure composite part of the present invention; Fig. 13 is a plan view at each stage of the manufacturing process of the part;
The figure is the same circuit diagram, Figure 14 is a plan view of the LC composite component of the present invention attached to a printed circuit board, Figure 15 is the same circuit diagram,
FIG. 6 is a plan view of an LC composite component according to another embodiment of the present invention, and FIG. 17 is a plan view of still another embodiment of the present invention.
FIG. 18 is a perspective view of a composite component according to an embodiment of the present invention;
and FIG. 19 shows an LC according to still another embodiment of the present invention.
FIG. 3 is a plan view of the composite component. The main parts in the figure are as follows. 1, 3.5...
・Magnetic layer? , 9. 11. Curved dielectric layer, 2.
4. 6... Coil conductor, 8,1°...
...Capacitor electrode, a, b, C9d...
・External terminal.

Claims (1)

[Scope of utility model registration request] A stack of alternately laminated insulating magnetic layers and linear printed conductors is formed such that the conductors spirally extend from one layer to another in a perpendicular substantially cylindrical plane via the edge of the magnetic material. and a layer formed by alternately laminating dielectric layers and printed electrodes so that a capacitance is formed between the electrodes are integrally superimposed and connected to the lead-out portions of the conductor and electrode. A composite component comprising separate external terminals attached to the outer surface of the stacked body.