JPH0393541A - Composite ceramic green sheet composed of different kinds of materials and preparation thereof - Google Patents

Abstract

PURPOSE:To form electrical elements to a plurality of sheet parts and to also achieve the connection between said electrical elements by adapting printing to a composite ceramic green sheet composed of a different kind of materials constituted by allowing a plurality of sheets composed of a different kind of sheet parts to be adjacent each other on the same plane. CONSTITUTION:A part main body 20 is composed of ceramic obtained by laminating composite ceramic green sheets composed of a different kind of materials constituted by printing conductive paste becoming internal electrodes 29, 31, 32 on the main surfaces extending from the first part 23 to the second part 24 in series and subsequently sintering the same through a binder removing process. The ceramic layers 25 contained in the part main body 20 are obtained by sintering the composite ceramic green sheets composed of a different kind of materials. The composite ceramic green sheets are equipped with the first and second sheet parts 26, 27 composed of the first and second sheet parts 26, 27 and these first and second sheet parts 26, 27 are mutually bonded in such a state that the respective main surfaces thereof are positioned on the same plane. The ceramic layers 25 are constituted of a dielectric body as a whole.

Description

DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to a ceramic green sheet and a method for manufacturing the same, and particularly relates to a ceramic green sheet in which at least two parts having mutually different compositions are... The present invention relates to a composite ceramic green sheet made of different materials and a method for manufacturing the same.

Obtained by this invention! The AFJ1 material composite ceramic green sheet can be used to manufacture a composite electronic component that uses a component body made of integrally sintered ceramic but has two or more electrical elements built into the component body.

[Prior Art] When trying to obtain an integrated component body made of ceramic for a composite electronic component as described above,! Normally, raw ceramic bodies made of type A materials are bonded together and then fired integrally in that state. Additionally, green ceramic bodies are generally obtained by stacking ceramic green sheets and pressing them together. Therefore, by stacking ceramic green sheets made of different materials, two or more regions having different characteristics can be formed in the integrally sintered ceramic body.

These regions can be used, for example, as regions for forming capacitors, or as regions for forming inductors, or as regions for forming resistors, depending on the characteristics each region has. used. In this way, a composite electronic component is obtained in which at least two electrical elements such as, for example, a capacitor, an inductor and a resistor are combined. Note that composite electronic components are not limited to those that combine different types of electrical elements, such as capacitors and inductors, but also include the same type of electrical elements, such as two or more capacitors that have similar characteristics. Including cases in which they are combined.

As described above, when a component body is formed by stacking ceramic green sheets, at least some of the electrical elements included therein are formed by printing or the like on the ceramic green sheets at a stage before stacking. For example, when the electrical element is a capacitor, opposing electrodes that should form a capacitance are formed by printing, etc. on different ceramic green sheets, and in the stacked state, when the parts are exposed, they are opposite to each other. It is made to serve as an internal electrode.

FIG. 17 shows a partially cutaway perspective view of a capacitor-capacitor composite electronic component 1 obtained using a conventional ceramic green sheet lamination method. FIG. 18 shows the composite electronic component 1 shown in FIG.
71IIIi circuit diagram is shown.

The composite electronic component 1 includes a component body 2 in which ceramic green sheets are laminated and sintered into one body through a binder removal process. The component body 2 includes a first portion 4 and a second portion 5 made of different dielectric materials, with an interface 3 as a boundary. The first and second portions 4 and 5 each have a pair of internal electrodes 8 and 9 and an internal electrode 10 and 10, respectively, to form the first and second capacitors 6 and 7 shown in FIG. 11 is formed. One internal electrode 8 formed on the first portion 4 is electrically connected to a first external electrode 12 formed on the outer surface of the component body 2. On the other hand, one internal electrode IO formed on the second portion 5 is electrically connected to a second external electrode 13 formed on the outer surface of the component body 2.

As shown in FIG. 18, the first capacitor 6 and the second capacitor 7 are connected in series, so as shown in FIG.
are connected to each other by a connecting electrode l4 formed on the outer surface of the . In addition, instead of the connection electrode 14, as shown by the imaginary line in FIG. 17, a pipe hole 14a may be provided inside the component body 2 to electrically connect the internal electrodes 11 and 11 to each other. good.

FIG. 19 shows a partially cross-sectional perspective view of a capacitor/inductor composite component 15 obtained by the conventional method of laminating ceramic green sheets. Second
0 shows an equivalent circuit diagram of the composite electronic component 15 shown in FIG. 19.

The composite electronic component 15 is substantially the same as the composite electronic component 1 described above in the portion above the boundary 3 of the component body 2. Therefore, corresponding parts will be given the same reference numerals and redundant explanation will be omitted.

In the composite electronic component 15, the second portion 16 of the component body 2 is made of a magnetic material. The second portion 16 includes:
Internal electrodes 17 are formed so as to penetrate there. One end of the internal electrode 17 is connected to a second external electrode 18 formed on the outer surface of the component body 2;
The other end of is connected to the connection electrode 14. In addition, in this case as well, instead of the connection electrode 14, a piezoelectric material (Piaho) k 1 4a may be used.

The composite electronic component 15 shown in FIG. 19 realizes a circuit in which a capacitor 6 and an inductor 19 are connected in series, as shown in FIG. 20, and is used, for example, as an LC filter.

[Problems to be Solved by the Invention] However, it is not possible to form at least a part of an electrical element on a ceramic green sheet and use a component body obtained by laminating ceramic green sheets including such a ceramic green sheet. In some cases, there are limits to the configuration of circuits that can be provided by such composite electronic components. That is, a ceramic suitable for forming one type of electrical element may be different from a ceramic suitable for forming another type of electrical element. In this case, when attempting to obtain these ceramics by laminating ceramic green sheets, a plurality of types of ceramic green sheets with different components or composition ratios, etc., are used for lamination. and,
Electrical elements are formed in relation to specific ceramic green sheets. These electrical elements, when ceramic green sheets are laminated,
They are formed at mutually different positions in the stacking direction of the stack. Therefore, in order to connect these electrical elements to each other, it is necessary to form connection electrodes on the outer surface of the laminate, that is, the component body, or to form a pipe hole inside the component body. In addition, when attempting to draw out electrical elements separately to the outside of the component body, the external electrodes connected to the individual electrical elements may be placed at different positions on the outer surface of the component body by interfering with each other. They must be formed so that they do not overlap.

To explain these matters in more detail with respect to the composite electronic components 1 and 15 shown in FIGS. 7 and 19, respectively, the first capacitor 6 and the second capacitor shown in FIG.
In order to connect the capacitor 7 in series, or to connect the capacitor 6 and the inductor 19 in series as shown in FIG.
You will need a. Furthermore, in order to draw out the first capacitor 6 and the second capacitor 7 separately to the outside, the first external electrode 12 and the second external electrode l3 must be formed so as not to interfere with each other. Must be. Similarly, in order to draw out the capacitor 6 and the inductor 19 separately to the outside, the first external electrode 12 and the second external electrode 1
8 must be formed so as not to interfere with each other.

However, the formation of the connection electrode 14 or the via hole 14a as described above, the shape of the first external electrode 12 and the second external electrode 13 or 18 while satisfying the above-mentioned conditions, or the complicated work. accompanied by. This is particularly noticeable when the component body 2 has small dimensions.

Furthermore, there are limitations to connecting electrical elements to each other using connection electrodes or via holes, and it is difficult to achieve such a complicated connection mode. For this reason as well, when the component body of a composite electronic component is constructed using the conventional technique of laminating ceramic green sheets, there is a limit to the circuit configuration that can be realized by the composite electronic component.

Therefore, an object of the present invention is to provide a composite electronic component in which two or more electrical elements are built into the component body while using a component body made of integrally sintered ceramic. The object of the present invention is to provide a ceramic green sheet for forming a component body, which allows electrical elements to be taken out to the outside relatively easily.

Another object of the present invention is to provide a method for manufacturing a ceramic green sheet as described above.

[Means for Solving the Problems] In order to solve the above-mentioned technical problems, the present invention provides a composite ceramic green sheet of different materials,
this! The Am material composite ceramic green sheet includes first and second sheet portions each made of at least a first material and a second material, and the first and second sheet portions have their respective main surfaces located on the same plane. They are characterized in that they are joined to each other in a tilted state.

When the joint between the first and second sheet portions in the above-described composite ceramic green sheet of different materials extends in a straight line, the following first and second manufacturing steps are performed to obtain such a composite ceramic green sheet. Any of the methods may be applied advantageously.

In the first manufacturing method, first, at least the first and second
First and ffi2 slurries are provided, each containing the following materials. These first and second slurries are supplied to a doctor blade in a state adjacent to each other, and by a doctor blade method using the doctor blade, the first slurry is
and a second slurry are cast in parallel in contact with each other.

In the second method, a laminate having first and second layers containing at least first and second materials, respectively, is first prepared. This stack is sliced in a direction transverse to the ml and second layer interfaces.

[Function] The dissimilar material composite ceramic green sheet according to the present invention has a plurality of sheet portions made of dissimilar materials adjacent to each other on the same plane. Therefore, such a difference P14
For example, by applying printing to a four-component composite ceramic green sheet, it is possible to form electrical elements on each of a plurality of sheet parts made of different materials, and also to connect these electrical elements. can be achieved.

[Effects of the Invention] As described above, according to the composite ceramic green sheet of different materials according to the present invention, the formation of two or more electrical elements and the connection between the electrical elements are possible within the range of the composite ceramic green sheet. can be achieved. Therefore, when such composite ceramic green sheets are laminated to form a component body, multiple electrical elements can be formed in the component body with the necessary electrical connections already achieved. .

Therefore, in order to connect a plurality of electrical elements, it is not necessary to form a connecting electrode on the outer surface of the component body or to form a pipe hole in the component body. Therefore, the complicated work of forming such connection electrodes or pipe holes becomes unnecessary, and in particular, it becomes easier to obtain a component body for a small-sized composite electronic component.

Furthermore, when using the composite ceramic green sheet according to the present invention, the plurality of electrical elements formed in the component body can be arranged so as to be distributed not in the stacking direction of the ceramic green sheet but in the main surface direction. . Therefore, the external electrodes for extracting these electrical elements to the outside can be located at relatively distant locations on the outer surface of the component body. No detailed consideration is required.

Further, according to the first manufacturing method of the present invention based on the doctor blade method, sheet parts made of different materials are already joined together at the stage of casting by applying the doctor blade method. Therefore, a composite ceramic green sheet made of different materials can be obtained efficiently.

Furthermore, according to the second manufacturing method of the present invention, which is characterized by the step of slicing the laminate, it is possible to reliably bond a plurality of layers each containing different materials at the laminate stage. can. therefore,
The composite ceramic green sheet obtained by slicing is made up of multiple sheet parts firmly joined to each other. In addition, it is possible to reliably prevent different types of materials from mixing with each other at the bonding interface.

〔Example〕

FIG. 1 is a perspective view showing a component body 20 included in a capacitor-capacitor composite electronic component obtained using a composite ceramic green sheet of different materials according to an embodiment of the present invention. FIG. 2 shows a capacitor-capacitor composite electronic component 21 obtained using the component body 20 shown in FIG.
2 is a cross-sectional view corresponding to the cross section taken along the line ■-■ in FIG. 1. FIG. FIG. 3 is an equivalent circuit diagram of the composite electronic component 21 shown in FIG. 2.

The component body 20 consists of a first portion 23 and a second portion 24 that are joined to each other at an interface 22.

The component body 20 is made by laminating composite ceramic green sheets made of different materials on which conductive pastes serving as internal electrodes are printed on the main surfaces extending in series from the first part 23 to the second part 24, and then subjected to a binder removal process. , made of ceramic obtained by sintering.

The ceramic layer 25 (FIG. 2) included in the component body 20 is obtained by sintering a composite ceramic green sheet of different materials. The composite ceramic green sheet comprises first and second sheet portions 26 and 27 of first and second materials, respectively, as can be seen from the ceramic layer 25 obtained therefrom. These first and second sheet portions 26 and 27 are joined to each other with their respective main surfaces located on the same plane. The ceramic layer 25 is generally composed of a dielectric material, and has a first sheet portion 26 and a second sheet portion 2.
No. 7 and No. 7 differ from each other in terms of components or composition ratios. The stacking of the first sheet parts 26 provides the first part 23 and the stacking of the second sheet parts 27 provides the second part 24.

Internal electrodes are formed on certain of the ceramic layers 25. The internal electrodes include a first group of internal electrodes 29 that extend in the first portion 23 and are exposed at one end surface 28 of the component body 20, and a second group of internal electrodes 29.
4 and exposed at the other end 1li30 of the component body 20; and 30, a third group of internal electrodes 32 is provided so as not to be exposed at any of them. Third group internal electrode 32
faces each of the internal electrodes 29 of the first group at one half thereof, and faces each of the internal electrodes 31 of the second group at each other half thereof. The first capacitor 33 shown in FIG. 3 is formed by the internal electrodes 29 of the first group and the internal electrodes 32 of the third group, while the internal electrodes 31 of the second group and the internal electrodes 32 of the third group By facing the internal electrode 32,
A second capacitor 34 is present.

As shown in FIG. 3, the first capacitor 33 and the second capacitor 34 are connected in series.
provided by a third group of internal electrodes 32.

As shown in FIG. 2, first and second external electrodes 35 and 3 are provided on each of the end surfaces 28 and 30 of the component body 20
6 is formed. The first external electrode 35 is electrically connected to the first group of internal electrodes 29, while the second external electrode 36 is connected to the second group of internal electrodes 31. Thereby, the composite electronic component 21 realizes an equivalent circuit as shown in FIG.

FIG. 4 is a perspective view showing a capacitor-capacitor composite electronic component 37 obtained using a composite ceramic green sheet of different materials according to another embodiment of the present invention. FIG. 5 is an equivalent circuit diagram of the composite electronic component 37 shown in FIG.

This composite electronic component 37 is obtained by substantially the same manufacturing method as the composite electronic component 21 described above. As shown in FIG. 5, the composite electronic component 37 constitutes a circuit in which first and second capacitors 38 and 39 are connected in parallel.

The composite electronic component 37 has a component body 40 obtained by sintering a laminate made of composite ceramic green sheets of different materials.
Equipped with The component body 40 consists of first and second parts 42 and 43, which are separated by a boundary 41. The first and second portions 42 and 43 are made of a common composite ceramic green sheet of different materials, and the first portion 42 and the first portion 43 are made of different materials.

In the portion 42 of M1, a first group of internal electrodes 44 and a second group of internal electrodes 45 are formed alternately.

Further, a third group of internal electrodes 4 is provided in the second portion 43.
6 and the fourth group of internal electrodes 47 are alternately formed. First group and third group internal electrodes 46
and 47 are formed to be exposed on one end surface 48 of the component body 40, and the second and fourth groups of internal electrodes 45 and 47 are formed on the other end surface 49 of the component body 40.
formed in such a way that it is exposed to These end faces 48 and 4
9 includes first and second external electrodes 50 and 5.
1 is formed. Therefore, the first external power source 50 is
It is electrically connected to the first group and the third group of internal electrodes 44 and 46. On the other hand, the second external electrode 51
are electrically connected to the internal electrodes 45 and 47 of the second and fourth groups. In this way, the first
group and second group of internal electrodes 44 and 45
The first capacitor 38 shown in FIG. 5 is formed by this, and the second capacitor 39 is formed by the third and fourth groups of internal electrodes 46 and 47. second capacitor 3
8 and 39 are connected in parallel by first and second external electrodes 50 and 51.

FIG. 6 is a sectional view showing a capacitor-inductor composite electronic component 52 formed using a composite ceramic green sheet of different materials according to still another embodiment of the present invention. FIG. 7 is an equivalent circuit diagram of the composite electronic component 52 shown in FIG. 6.

As shown in FIG. 7, the composite electronic component 52 constitutes a circuit in which a capacitor 53 and an inductor 54 are connected in series. The composite electronic component 52 includes a component body 55.

The component body 55 consists of first and second portions 57 and 58 with an interface 56 as their boundary. The first portion 57 is made of a dielectric material, and the second portion 58 is made of a magnetic material.

The component body 55 is obtained by sintering a laminate of composite ceramic green sheets of different materials. The multi-material composite ceramic green sheet used here includes a first sheet portion made of a dielectric material and a second sheet portion made of a magnetic material, and these first and second sheet portions are
They are connected to each other with their respective bodies located on the same plane. The stacking of the first sheet portions described above provides the first portion 57, and the stacking of the second sheet portions provides the second portion 58.

The first portion 57 and the second portion 58 are sintered at the same time, thereby forming the integral component body 55, so that the dielectric material constituting the first portion 57 and the second portion 58 are sintered simultaneously. The constituent magnetic materials must be able to be sintered at the same temperature.

For example, as a dielectric, Pb (N i −Nb)
When a pb-based composite perovsite material such as 0,-PbTiO, -Pb(Cu-Nb)O, and (Nj-Zn-Cu)Fe20, are used as the magnetic material, 1
These can be sintered together at a firing temperature of 000°C.

The first portion 57 of the component body 55 has internal electrodes 60 and 61 extending to one end surface 59 of the component body 55 . Moreover, an internal electrode 62 is located between internal electrodes 60 and 61. The internal electrode 62 is connected to the first portion 5
7 to the second portion 58, and is exposed at the other end surface 63 of the component body 55.

First and second external electrodes 64 and 65 are formed on end surfaces 59 and 63 of component body 55, respectively. Therefore, the first external electrode 64 is similar to the internal electrodes 60 and 6.
The second external electrode 65 is electrically connected to the internal electrode 62 . In this way, the composite electronic component 52 constitutes a circuit as shown in FIG.

That is, the capacitor 53 has internal electrodes 60 and 61
and an internal electrode 62 facing these,
The inductor 54 is provided by an internal electrode 62 passing through a second portion 58 made of magnetic material. Further, electrical connection between the capacitor 53 and the inductor 54 is achieved by an internal electrode 62.

In order to obtain the component bodies 20, 40.55 for the composite electronic component 21.37.52 as described above, a composite ceramic green sheet of different materials is prepared. A method for manufacturing such a composite ceramic green sheet will be described below.

FIGS. 8 to 12 are diagrams for explaining an example of such a manufacturing method. In this example, basically:
A doctor blade method is used.

In addition, the composite ceramic green sheet to be obtained is
It is assumed that a sheet portion that is to become a dielectric material and a sheet portion that is to be a magnetic material are provided.

As mentioned above, Pb (Ni-Nb) is used as the dielectric material.
Os −P bT iOa P b (C u−Nb
)O, is used, and (Ni-Zn-C
u) Fez 03 is used. The dielectric material and the magnetic material are each in a slurry state.

The dispersion medium used to obtain these slurries is as follows:
Regarding each of the dielectric and magnetic materials, it is possible that both are aqueous or organic, or one is aqueous and the other is organic. In both cases, organic systems are advantageously used. For example, a toluene-alcohol mixed solvent or a dispersion medium in which a sorbitan fatty acid ester dispersant is added is suitable. Further, a binder made of, for example, polybutyral resin is added to the slurry. Each of the obtained slurries is subjected to viscosity adjustment.

As schematically shown in FIG. 8, the doctor blade device 6
8, the composite ceramic green sheet 69 is shaped, and then the green sheet 69 is dried in a drying zone 70.

Details of the doctor blade device 68 are shown in FIGS.
1, and details of the formation of six composite ceramic green sheets using the doctor blade device 68 are shown in FIG.

The doctor blade device 68 includes a blade 72 arranged to form a predetermined gap 71 (FIGS. 10 and 11) between the blade 72 and the upper surface of the carrier film 67. Behind the blade 72 are four slurry reservoirs 76.77, 78.79 divided by partitions &73, 74.75.
(Fig. 9) is provided.

As shown in FIG. 12, dielectric slurries 80 and 81 are stored in the slurry storage parts 76 and 78, respectively, and magnetic slurries 82 and 83 are stored in the slurry storage parts 77 and 79, respectively. . These slurries 80
-83, when discharged from the respective associated reservoirs 76-7, become adjacent to each other and are supplied to the blade 72 in this state. When the slurries 80 to 83 are supplied onto the carrier film 67 through the gap 71 between the blade 72 and the carrier film 67, they come into contact with each other and are cast in parallel.

As a result, a composite ceramic green sheet 69 is formed on the carrier film 67, which includes sheet portions 84 and 85 each made of a dielectric material and sheet portions 86 and 87 each made of a magnetic material.

In addition, when attempting to obtain six composite ceramic green sheets using such a doctor blade method, the slurry 80 that grooves the sheet portions 84 to 87, respectively, is used until the sheet parts 84 to 87 are dried in the drying zone 70 (FIG. 8). ~83 is,
You need to make sure that they don't mix with each other. That is, if the viscosity of the slurries 80-83 is too low, the shape of the sheet portions 84-87 cannot be maintained by their respective surface tensions, and the slurries 80-83 may mix together. Therefore, adjusting the viscosity of slurries 8o to 83 is relatively important. For example, dielectric slurry 80
and 81, 1750 cp, magnetic slurry 8
As for No. 2 and No. 83, it has been experimentally confirmed that good results can be obtained when the amount is 413 cp.

The six composite ceramic green sheets obtained as described above are punched with a die to have predetermined dimensions and shapes. Next, a conductive paste is printed using, for example, a screen printing method to form internal electrodes and the like. Next, a molded body is obtained through the steps of lamination, pressure bonding, and cutting, and a sintered component body is obtained by subjecting this molded body to a binder removal process and a sintering process.

The composite ceramic green sheet can also be manufactured by the following method.

Another such manufacturing method is shown in FIGS. 13-15.

As shown in FIG. 13, a laminate 88 is first prepared. The laminate 88 can be roughly divided into eight first layers made of dielectric material and a second layer 90 made of magnetic material. 1st
The layer 89 is obtained by laminating a predetermined number of ceramic green sheets 91 made of dielectric material. Also,
The second layer 90 is obtained by laminating a predetermined number of ceramic green sheets 92 made of magnetic material.

The laminate 88 formed by laminating these first and second layers 89 and 90, more specifically, the laminate 88 formed by laminating ceramic green sheets 91 and 92, is indicated by arrow 9.
3 and 94, they are crimped in the stacking direction. Note that the pressure applied during this pressure bonding is adjusted depending on the properties of the ceramic green sheets 91 and 92 that constitute the laminate 88, and is, for example, 1.5.
A pressure of t/cm2 is applied.

Next, as shown in FIG. 14, the pressed laminate 88 is moved in a direction intersecting the interface 95 between the first and second layers 89 and 90, in this example, in a direction perpendicular to the interface 95. For example, it is sliced using a cutting blade 96.

By slicing as described above, a composite ceramic green sheet 97 as shown in FIG. 15 is obtained. This composite ceramic green sheet 97 includes a first sheet portion 98 made of a dielectric material derived from the first layer 89 and a second sheet portion 99 made of a magnetic material derived from the second layer 90.

These first and second sheet portions 98 and 9 are
The respective main pieces are placed on the same plane and are joined to each other at the rising surface 95.

A conductive paste or the like is printed on a specific composite ceramic green sheet 97 thus obtained in order to form electrical elements and electrical connections. Then, in order to obtain the component body of the composite electronic component, the first
As shown in Figure 6, composite ceramic green sheet 97
are laminated.

The subsequent steps are the same as those for the composite ceramic green sheet 69 obtained by the doctor blade method described above.

[Brief explanation of drawings]

FIG. 1 is a perspective view showing a component body 20 of a capacitor-capacitor composite electronic component obtained using a composite ceramic green sheet of different materials according to an embodiment of the present invention. FIG. 2 is a cross-sectional view of the capacitor-capacitor composite electronic component 21 including the component main body 20 shown in FIG. 1, and shows a cross section corresponding to the cross section taken along the line ■--■ in FIG. FIG. 3 is an equivalent circuit diagram of the composite electronic component 21 shown in FIG. 2. FIG. 4 shows a component body 40 constructed using a composite ceramic green sheet of different materials according to another embodiment of the present invention.
FIG. 3 is a perspective view showing a capacitor/capacitor composite electronic component 37 including a capacitor/capacitor composite electronic component 37; FIG. 5 is an equivalent circuit diagram of the composite electronic component 37 shown in FIG. FIG. 6 is a sectional view showing a capacitor-inductor composite electronic component 52 including a component body 55 constructed using a composite ceramic green sheet of different materials according to still another embodiment of the present invention. FIG. 7 is an equivalent circuit diagram of the composite electronic component 52 shown in FIG. 6. FIG. 8 is an illustrative diagram showing a doctor blade method for cutting the composite ceramic green sheet 69. FIG. 9 is a top view of the doctor blade device 68 shown in FIG. 8. FIG. 10 is a front view of the same doctor blade device 68. FIG. 11 is a side view of the same doctor blade device 68. FIG. 12 shows a composite ceramic green sheet 6 using a doctor blade device 68.
FIG. FIG. 13 is a perspective view showing a laminate 88 for explaining another method for manufacturing a composite ceramic green sheet. FIG. 14 is a perspective view showing a state in which slicing is applied to the stacked body 88. Figure 15 shows
FIG. 3 is a perspective view showing a composite ceramic green sheet 97 obtained by slicing. FIG. 16 is a perspective view showing a state in which composite ceramic green sheets 97 are stacked to obtain a component body using the composite ceramic green sheets 97. FIG. 17 is a partially sectional perspective view showing a conventional capacitor/capacitor composite electronic component 1. As shown in FIG. Figure 18 shows the 17th
FIG. 2 is an equivalent circuit diagram of the composite electronic component 1 shown in the figure. FIG. 19 is a partially sectional perspective view showing a conventional capacitor-inductor composite electronic component 15. As shown in FIG. Figure 20 shows the first
9 is an equivalent circuit diagram of the composite electronic component 15 shown in FIG. 9. FIG. In the figure, 20, 40.55 is the component body, 22.41
．． 56.95 is the rising plane, 23.42.57 is the first part,
24.43.58 is the second part, 25 is the ceramic layer,
26 is the first sheet portion, 27 is the second sheet portion, 6
8 is a doctor blade device, 69.97 is a composite ceramic green sheet, 72 is a blade, 76 to 79 are slurry storage parts, 80.81 is a dielectric slurry, 82.83 is a magnetic slurry, 84 to 87 are sheet parts, 88 is a laminate;
89 is a first layer, 90 is a second layer, 91.92 is a ceramic green sheet, 96 is a cutting blade, 98 is a first sheet portion, and 99 is a second sheet portion.

Claims (3)

[Claims] (1) First and second sheet portions made of at least first and second materials, respectively, and the first and second sheet portions are mutually arranged with their respective principal surfaces located on the same plane. A composite ceramic green sheet made of different materials that is bonded together. (2) preparing first and second slurries each containing at least a first and second material;
feeding the slurries adjacent to each other to a doctor blade, and casting the first and second slurries in parallel in contact with each other by a doctor blade method using the doctor blade, A method for producing a composite ceramic green sheet made of different materials. (3) preparing a laminate having first and second layers each containing at least a first and second material; slicing the laminate in a direction intersecting an interface between the first and second layers; A method for manufacturing a composite ceramic green sheet of different materials, comprising steps of: