JPH09153433A - Manufacture of laminated electronic component - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a method for manufacturing a laminated electronic component, which can contrive the improvement of the process of manufacture and a reduction of the cost of the manufacturing installation. SOLUTION: Internal electrodes 12 of a prescribed width are continuously printed on the surface of a green sheet into a strip form by a roller or the like to dry these electrodes 12 and after the electrodes 12 are cut to form unit sheets 13, the electrodes 12 formed on unit sheets 13A belonging to a group A on one side of groups are shifted from the electrodes 12 formed on unit sheets 13B belonging to the other group B in such a way that the part excluding one end in the width direction of each internal electrode 12 opposes to the part excluding the other end in the width direction of the electrode 12 formed on each unit sheet 13B and the circuit sheets 13A and 13B are laminated to pressure bond them to each other. The electrodes 12 are cut in the laminated direction at a prescribed position with the opposed regions of the electrodes 12 to each other as roughly their centers in such a way that the parts located at the regions other than the opposed regions of the electrodes 12 are exposed to cutting surfaces to form a laminated chip and one pair of external electrodes, which are conduction-connected with the parts located at the regions other than the opposed regions of the electrodes 12, are formed to form into a laminated capacitor.

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 a laminated electronic component such as a laminated capacitor, and more particularly to a method for manufacturing a laminated electronic component with improved lamination accuracy.

[0002]

2. Description of the Related Art A multilayer capacitor 1, which is conventionally known as one of multilayer electronic components, has a sintered body 2 made of dielectric ceramics and a dielectric ceramics layer interposed therebetween as shown in FIG. A plurality of overlapping internal electrodes 3 are arranged, and for example, the internal electrodes are connected to a pair of external electrodes 4 formed on the end faces of the sintered body alternately with the A layer 3A and the B layer 3B.

In manufacturing the multilayer capacitor 1, a plurality of conductor layers 6 forming internal electrodes are printed and formed in a matrix pattern on a rectangular green sheet 5 made of a dielectric ceramic with a printing pattern as shown in FIG. To be done. The conductor layer 6 is made of, for example, Ag, Pd, Ag-Pd, Ni, C.
This metallic paste is printed on a green sheet.

As shown in FIG. 4, the printed patterns of the conductor layers forming these internal electrodes are printed by using the screens of the A layer and the B layer in the A layer and the B layer, respectively. In this way, the green sheets 5 on which the conductor layers 6 are printed are arranged such that the A layers 3A and B layers 3B are alternately arranged according to the set capacitance as shown in FIG. The sheet stacks are formed by stacking.

After that, the entire sheet laminate is thermocompression-bonded,
The sheet laminate is cut in a lattice along cutting lines 7 in two directions determined based on the width and length of a single component to obtain a laminated chip. Further, after firing the multilayer chip, the external electrodes 4 are formed on the end faces of the multilayer chip 1 to form the multilayer capacitor 1.
Are manufactured.

The conductor layer 6 has a length twice that of the internal electrode, and is divided into two pieces at the time of cutting to expose the cut edge on the end face of the laminated chip, which is connected to the external electrode 4. To be done.

[0007]

However, when forming the laminate, the X direction and the Y direction are set in order to set the overlap of the conductor layers serving as the internal electrodes so that the designed capacitance value can be obtained. Since it is necessary to align the direction with high accuracy, it takes time and effort during manufacturing, and the cost of manufacturing equipment is increased.

In view of the above problems, an object of the present invention is to provide a method of manufacturing a laminated electronic component which can improve the manufacturing process and reduce the cost of manufacturing equipment.

[0009]

In order to achieve the above-mentioned object, the present invention provides a green sheet, in which internal electrodes having a predetermined width are continuously printed in strips on the surface of a green sheet. After the sheet is dried and the dried green sheet is cut into a predetermined shape to form a unit sheet, a portion other than one end in the width direction of the internal electrodes formed on the unit sheet belonging to one side is on the other side. At least two layers of the unit sheets are laminated and pressure-bonded so as to be opposed to a portion except the other end in the width direction of the internal electrode formed on the unit sheet to which the internal electrode is opposed, and the opposing region of the internal electrode is set substantially at the center. While forming a laminated chip by cutting in a layer direction at a predetermined position, so that a portion in a region other than the facing region of the internal electrode formed on the unit sheet on the side and the other side is exposed to the cut surface, External electrodes that are conductively connected to parts of the internal electrodes other than the facing regions formed on the unit sheet belonging to the one side on the outer surface of the laminated chip, and the facing regions formed on the unit sheet belonging to the other side. A method for manufacturing a laminated electronic component is proposed, in which an external electrode electrically connected to the other internal electrode is formed to form a laminated electronic component.

According to the method of manufacturing the laminated electronic component, internal electrodes having a predetermined width are continuously printed in a strip shape on the surface of the green sheet, and the green sheet on which the internal electrodes are printed is dried. Thereafter, the dried green sheet is cut into a predetermined shape to form a unit sheet, which is divided into a unit sheet belonging to one side and a unit sheet belonging to the other side corresponding to the counter electrodes forming the capacitor. A part of the internal electrode formed on one side of the unit sheet excluding one end in the width direction is overlapped with a part of the internal electrode formed on the other side of the unit sheet excluding the other end in the width direction. At least two layers of unit sheets are laminated and pressure-bonded. Next, the facing area of the internal electrode is set substantially at the center, and a predetermined portion is exposed so that a portion of the internal electrode formed on the unit sheet on the one side and the other side other than the facing area is exposed to the cut surface. A laminated chip is formed by cutting the laminated chip at a position in the layer direction, and an external electrode conductively connected to one end of an internal electrode formed on the unit sheet on one side of the laminated chip and the other side. An external electrode electrically connected to the other end of the internal electrode formed on the unit sheet on the side of is formed to form a laminated electronic component including a capacitor having the internal electrode as a counter electrode.

According to a second aspect of the present invention, in the method of manufacturing a laminated electronic component according to the first aspect, when the green sheet is cut to obtain a unit sheet, the internal electrodes are cut so as to have the same pattern, When stacking unit sheets,
The portion of the internal electrode formed on the unit sheet belonging to the one side excluding one end in the width direction faces the portion of the internal electrode formed on the unit sheet belonging to the other side excluding the other end in the width direction. A method of manufacturing a laminated electronic component in which at least two layers of the unit sheets are laminated and pressure-bonded to each other by shifting them is proposed.

According to the method of manufacturing the laminated electronic component, when the unit sheet is obtained, the green sheet is cut so that the internal electrodes have the same pattern to form the unit sheet having the same shape. When stacking, the portion excluding one end in the width direction of the internal electrode formed on the unit sheet belonging to the one side is excluding the other end in the width direction of the internal electrode formed on the unit sheet belonging to the other side. The unit sheets are stacked so as to be opposed to the portions.

According to a third aspect of the present invention, in the method of manufacturing a laminated electronic component according to the first aspect, when the green sheet is cut to obtain a unit sheet, the internal electrodes have a pattern displaced in the width direction by a predetermined distance. When cut into the same shape so that the unit sheets are laminated, the unit sheets are laminated so that their peripheral edges are aligned with each other, and one end in the width direction of the internal electrodes formed on the unit sheets belonging to the one side is excluded. A method of manufacturing a laminated electronic component in which at least two layers of the unit sheets are laminated and pressure-bonded so that the portions are opposed to the portions other than the other end in the width direction of the internal electrodes formed on the unit sheets belonging to the other side are proposed. .

According to the method for manufacturing a laminated electronic component, when the unit sheet is obtained, the green sheet is cut so that the internal electrodes have a pattern displaced by a predetermined distance in the width direction, and the unit sheet having the same shape is cut. Is generated, and when the unit sheets are stacked, the unit sheets are stacked so that the peripheral edges of the unit sheets coincide with each other.

According to a fourth aspect of the present invention, in the method of manufacturing a laminated electronic component according to any one of the first to third aspects, after an insulating material is applied to an exposed portion of the laminated chip opposite to the internal electrode. A method for manufacturing a laminated electronic component for forming the external electrode is proposed.

According to the method of manufacturing the laminated electronic component, after the insulating material is applied to the exposed portion of the laminated electrode in the facing portion of the internal electrode to form the side margin, the external electrode is formed. Is formed. As a result, the external electrode does not come into contact with the facing portion of the internal electrode exposed in the cross section.

According to a fifth aspect of the present invention, in the method of manufacturing a laminated electronic component according to any one of the first to fourth aspects, an internal electrode having a predetermined width extending in the length direction of the green sheet is provided.
A method for manufacturing a laminated electronic component in which a plurality of printed sheets are formed in parallel with each other at a predetermined interval in the width direction of the green sheet is proposed.

According to the method for manufacturing a laminated electronic component, a plurality of internal electrodes having a predetermined width extending in the length direction of the green sheet are formed in parallel by a predetermined distance in the width direction of the green sheet. Accordingly, after stacking the unit sheets, a plurality of stacked chips can be formed in a matrix when forming the stacked chips.

According to a sixth aspect of the present invention, in the method of manufacturing a laminated electronic component according to any one of the first to fourth aspects, the internal electrode having a predetermined width extending in the width direction of the green sheet is provided with a length of the green sheet. A method of manufacturing a laminated electronic component is proposed in which a plurality of printed electronic components are formed in parallel with each other with a predetermined interval in the direction.

According to the method of manufacturing the laminated electronic component, the internal electrode having a predetermined width extending in the width direction of the green sheet is
A plurality of green sheets are printed and formed in parallel at predetermined intervals in the length direction. Accordingly, after stacking the unit sheets, a plurality of stacked chips can be formed in a matrix when forming the stacked chips.

According to a seventh aspect of the present invention, in the method of manufacturing a laminated electronic component according to the fifth aspect, the internal electrodes are printed by alternately shifting them in the width direction at predetermined intervals in the length direction of the green sheet. A method of manufacturing a laminated electronic component is proposed.

According to the method of manufacturing the laminated electronic component, the internal electrodes are printed by being shifted in the length direction of the green sheet at a predetermined cycle and alternately in the width direction. A unit sheet obtained by cutting the green sheet in its lengthwise direction is laminated by making both ends in the width direction thereof coincide with each other, so that one end in the width direction of the internal electrode formed on the unit sheet belonging to the one side. The portion other than is overlapped with the portion excluding the other end in the width direction of the internal electrode formed on the unit sheet belonging to the other side.

According to an eighth aspect of the present invention, in the method for producing a laminated electronic component according to the sixth aspect, the laminated electronic component is provided in which a region where the internal electrode is not formed is provided at a predetermined cycle in the lengthwise direction of the green sheet. Suggest a method.

According to the method of manufacturing the laminated electronic component, the regions where the internal electrodes are not formed are provided in the lengthwise direction of the green sheet at a predetermined cycle. Thereby, at a predetermined position of the area where the internal electrode is not formed, the green sheet is cut at a right angle to the length direction of the green sheet to form the unit sheet, and the unit sheets are laminated. So that a portion of the internal electrode formed on the unit sheet belonging to the one side excluding one end in the width direction overlaps a portion of the internal electrode formed on the unit sheet belonging to the other side excluding the other end in the width direction. Become.

[0025]

DETAILED DESCRIPTION OF THE INVENTION An example of an embodiment of the present invention will be described below with reference to the drawings. In this embodiment, a multilayer capacitor will be described as an example of the multilayer electronic component.

FIG. 1 is a diagram showing a first example of a green sheet printed with a metal paste to be an internal electrode in this embodiment. In the figure, reference numeral 11 denotes a rectangular green sheet made of a dielectric ceramic and having a predetermined width and length, and a strip-shaped internal electrode (conductor) extending on the surface in the length direction of the green sheet 11 and having a predetermined width. Layer) 1
2 are formed in parallel by a predetermined interval.

That is, the green sheet 11 is made of, for example, Ba.
It is made of a ceramic material containing TiO ₃ as a main component and having a dielectric constant of 50 and a CH characteristic of temperature characteristic, and its thickness is set to 28 μm after chip sintering.

The internal electrodes 12 formed on the green sheet 11 are, for example, Ag, Pd, Ag-Pd, Ni,
The roller 21 as shown in FIG. 7 is made of Cu or the like and its print film thickness is set to about 1 μm to 10 μm (after drying).
Are continuously formed by printing.

When a multilayer capacitor is manufactured using the green sheet 11 in which the internal electrodes 12 are continuously formed in a strip shape as described above, first, as shown in FIG. 8, the green sheet 11 is formed in a predetermined length. The sheet is cut to form a plurality of unit sheets 13. Next, as shown in FIG. 9, the unit sheet 13 is divided into two sets each having a plurality of sheets, and then, as shown in FIG. 10, the width direction of the internal electrodes 12A formed on the unit sheet 13A belonging to one set A is measured. The part except one end is the other set B
Electrodes 12B formed on the unit sheet 13B belonging to
The unit sheets 13A and 13B of each set are laminated so as to be shifted in the width direction of the internal electrode 12 so as to overlap with the portion excluding the other end in the width direction of the internal electrode 12, and a dummy dielectric layer (unit sheet and After stacking the same shape) (not shown),
These are pressure-bonded to form a laminate 14.

After that, as shown in FIG. 11, the laminate 14 is cut in a matrix in the stacking direction along a cutting line 15 corresponding to the size of the multilayer chip based on the capacitance of the multilayer capacitor to be manufactured. Then, the laminated chip 16 shown in FIG. 12 is obtained by firing. By cutting the laminate 14 in a matrix in this manner, a large number of laminated chips 16 can be produced at one time.

Then, as shown in FIG. 13, an insulating material 17 is coated so as to cover the internal electrodes 12 exposed on the side surfaces of the multilayer chip 16, and then both ends of the multilayer chip 16 are externally coated as shown in FIG. The electrode 18 is formed. The size of the multilayer capacitor 19 obtained by this is 1.0 mm.
(Length) x 0.5 mm (height) x 0.5 mm (width).

As described above, according to this embodiment, since the unit sheet 13 obtained by continuously printing the strip-shaped internal electrodes 12 is laminated on the green sheet 11, only the widthwise direction of the internal electrodes 12 is obtained. Since it is only necessary to perform the positioning with high accuracy and there is no need to perform the positioning in the two directions of the X direction and the Y direction as in the conventional case, it is possible to simplify the manufacturing process and reduce the cost of manufacturing equipment. Can be achieved. Further, when manufacturing a capacitor, it is possible to increase the capacity yield and prevent the occurrence of a side margin defect. Further, since the internal electrodes 12 are continuously printed, mass productivity can be improved.

Next, a second example of this embodiment will be described. FIG. 15 shows the internal electrode 1 according to the second embodiment.
2 is an external view showing a green sheet 11 on which 2 is printed and a roller 22 used for this printing. FIG. In the figure, the same components as those of the first embodiment described above are denoted by the same reference numerals, and description thereof will be omitted. Further, the difference between the first embodiment and the second embodiment is that, as shown in the drawing, in the second embodiment, the strip-shaped internal electrodes 12 are formed in a different pattern in the longitudinal direction of the green sheet 11 with a predetermined cycle. Are continuously printed.
At this time, the first pattern P1 and the second pattern P2 are alternately printed, and the printing position of the internal electrode 12 of the second pattern P2 is displaced from the first pattern P1 by a predetermined distance in the width direction. Is printed. This offset distance corresponds to the offset distance when the unit sheets 13 are stacked in the first embodiment. As a result, by stacking the unit sheets 13 obtained by cutting the green sheet 11 into the patterns P1 and P2 so that the ends in the width direction are aligned with each other, the overlapping of the internal electrodes 12 in the upper and lower layers can be set to the design value. can do.

Therefore, the alignment of the unit sheets 13 when laminated can be further simplified, and the manufacturing process can be further simplified.

Incidentally, in the first and second embodiments, FIG.
As shown in (a) and (b) of FIG. 6, the rollers 23 and 24 capable of continuously printing a plurality of different patterns are used to divide the green sheet 11 into two in the width direction, and the internal electrodes 12 are respectively formed in different patterns. By forming it, it is also possible to manufacture in parallel a multilayer capacitor having two different types of electrostatic capacitance. Further, if the number of divisions is increased, it is possible to manufacture in parallel a multilayer capacitor having three or more types of capacitance.

Next, a third example of this embodiment will be described. FIG. 17 is a diagram showing a third example of the green sheet printed with the metal paste which will be the internal electrodes in the present embodiment. The same components as those in the first embodiment described above are designated by the same reference numerals. In the figure, reference numeral 11 is a rectangular green sheet made of a dielectric ceramic and having a predetermined width and length, and a belt-shaped internal electrode 12 extending in the width direction of the green sheet 11 and having a predetermined width is provided on the surface thereof. A plurality of prints are formed in parallel at intervals.

That is, the green sheet 11 is made of, for example, Ba.
It is made of a ceramic material containing TiO ₃ as a main component and having a dielectric constant of 50 and a CH characteristic of temperature characteristic, and its thickness is set to 28 μm after chip sintering.

The internal electrodes 12 formed on the green sheet 11 are, for example, Ag, Pd, Ag-Pd, Ni,
The roller 2 as shown in FIG. 18 is made of Cu or the like, and its print film thickness is set to about 3 μm to 10 μm (after drying).
5 is continuously printed.

When a multilayer capacitor is manufactured using the green sheet 11 in which the internal electrodes 12 are continuously formed in a strip shape as described above, first, as shown in FIG. 19, the green sheet 11 is formed in a predetermined length. The sheet is cut to form a plurality of unit sheets 13.

Next, as in the first embodiment described above, the unit sheet 13 is divided into two groups as shown in FIG. 9 and then divided into one group A as shown in FIG. A unit sheet 13B in which a portion other than one end in the width direction of the internal electrode 12A formed on the unit sheet 13A to which it belongs belongs to the other set B.
The unit sheets 13A, 1 of each set are formed so as to overlap the portion of the internal electrode 12B formed in
3B is shifted and laminated in the width direction of the internal electrode 12, and pressure-bonded to form a laminate 14.

Thereafter, as shown in FIG. 11, the laminate 14 is cut in the laminating direction along a cutting line 15 corresponding to the size of the laminated chip based on the electrostatic capacitance of the multilayer capacitor to be manufactured, and the laminate 14 is baked. Then, the laminated chip 16 shown in FIG. 12 is obtained.

Then, as shown in FIG. 13, an insulating material 17 is coated so as to cover the internal electrodes 12 exposed on the side surfaces of the multilayer chip 16, and then both ends of the multilayer chip 16 are externally coated as shown in FIG. The electrode 18 is formed. The size of the multilayer capacitor 19 obtained by this is 1.0 mm.
(Length) x 0.5 mm (height) x 0.5 mm (width).

As described above, according to the third embodiment, since the unit sheet 13 obtained by continuously printing the strip-shaped internal electrode 12 is laminated on the green sheet 11, the width of the internal electrode 12 is increased. Since it is only necessary to perform alignment in only one direction with high accuracy and there is no need to perform alignment in two directions, the X direction and the Y direction, as in the conventional case, it is possible to simplify the manufacturing process and reduce the manufacturing equipment. Cost can be reduced. Further, when manufacturing a capacitor, it is possible to increase the capacity yield and prevent the occurrence of a side margin defect. Further, since the internal electrodes 12 are continuously printed, mass productivity can be improved.

Next, a fourth example of this embodiment will be described. FIG. 20 is an external view showing the green sheet 11 on which the internal electrodes 12 are printed and the roller 26 used for this printing in the fourth embodiment. In the figure, the above-mentioned third
The same components as those of the embodiment are indicated by the same reference numerals and the description thereof will be omitted. In addition, the difference between the third embodiment and the fourth embodiment is that, as shown in the figure, in the fourth embodiment, the internal electrode 1 has a predetermined cycle in the longitudinal direction of the green sheet 11.
The area where 2 is not formed is provided, and the strip-shaped internal electrode 12 is continuously printed.

When the green sheet 11 is cut to form the unit sheet 13, the green sheet 11 is cut at a predetermined length in a region where the internal electrode 12 is not formed, and as shown in FIG. In addition, the cutting length is set such that when the unit sheets and 13 are alternately reversed and stacked, the overlap of the internal electrodes 12 in the upper and lower layers becomes a design value. Thereby, the unit sheet 13 obtained by cutting
By laminating the end portions in the width direction and the length direction so as to coincide with each other, the overlap of the internal electrodes 12 in the upper and lower layers can be set to a design value.

Therefore, the alignment of the unit sheets 13 when laminated can be further simplified, and the manufacturing process can be further simplified.

In addition, in the third and fourth embodiments, FIG.
As shown in (a) and (b) of FIG. 2, the rollers 27 and 28 capable of continuously printing a plurality of different patterns are used to divide the green sheet 11 into two parts in the width direction, and the internal electrodes 12 are respectively formed in different patterns. By forming it, it is also possible to manufacture in parallel a multilayer capacitor having two different types of electrostatic capacitance. Further, if the number of divisions is increased, it is possible to manufacture in parallel a multilayer capacitor having three or more types of capacitance.

The above-described embodiment is merely an example, and the present invention is not limited to this. For example, although the multilayer capacitor has been described as an example in the present embodiment, the present invention is not limited to the multilayer capacitor, and substantially the same effect can be obtained when applied to other multilayer electronic components such as a multilayer resonator. It goes without saying that it will be done.

Although a roller is used in this embodiment,
As shown in FIGS. 23A and 23B, the internal electrode 12 is continuously printed on the green sheet 11 by using the rotary screen 30 in which the squeegee 32 is arranged inside the cylindrical screen plate 31. May be.

[0050]

As described above, according to claim 1 of the present invention, since the internal electrodes are continuously printed in a strip shape on the green sheet, the mass productivity can be improved and the manufactured laminated chip can be manufactured. The stacking deviation of the internal electrodes need only be considered in the direction connecting the external electrodes formed at both ends of the multilayer chip, and the stacking deviation of the internal electrodes in the direction orthogonal to this does not occur, thus saving labor during manufacturing. In addition, the manufacturing cost can be reduced.
Furthermore, when a capacitor is formed by the internal electrodes, the capacity yield is improved, and it is possible to satisfy both the increase in capacity and the improvement in stacking accuracy at the same time.

According to the second aspect, in addition to the above effect, the green sheet is cut so that the internal electrodes have the same pattern to form the unit sheet having the same shape. You can save time.

According to the third aspect, in addition to the above effects, the green sheet is cut into the same shape so that the internal electrodes have a pattern displaced by a predetermined distance in the width direction, to form a unit sheet, When the unit sheets are stacked, since the peripheral edges of the unit sheets are aligned and stacked, it is possible to simplify the alignment when stacking the unit sheets.

According to claim 4, in addition to the above effect, an insulating material is applied to a portion of the laminated chip where the facing portion of the internal electrode is exposed to form a side margin. After that, since the external electrodes are formed,
The external electrode does not come into contact with the facing portion of the internal electrode exposed in the cross section.

According to claim 5, in addition to the above effects, a plurality of internal electrodes having a predetermined width extending in the length direction of the green sheet are arranged in parallel in the width direction of the green sheet at a predetermined interval. Since the printed sheets are formed by printing, a plurality of laminated chips can be formed in a matrix when the laminated chips are formed after the unit sheets are laminated, so that mass productivity can be improved.

According to claim 6, in addition to the above effects, a plurality of internal electrodes having a predetermined width extending in the width direction of the green sheet are arranged in parallel in the length direction of the green sheet at predetermined intervals. Since the printed sheets are formed by printing, a plurality of laminated chips can be formed in a matrix when the laminated chips are formed after the unit sheets are laminated, so that mass productivity can be improved.

According to claim 7, in addition to the above effect, the internal electrodes are formed by printing in a predetermined cycle in the length direction of the green sheet and with a slight offset in the width direction. The unit sheet obtained by cutting the green sheet in its lengthwise direction at each of the cycles is laminated by aligning both ends in the width direction of the unit sheet to form an inner portion formed on the unit sheet belonging to the one side. Since the part excluding one end in the width direction of the electrode is overlapped with the part excluding the other end in the width direction of the internal electrode formed on the unit sheet belonging to the other side, the unit sheets may be stacked while being staggered when stacked. Alternatively, when the green sheet is cut to form the unit sheet, it is not necessary to shift the cutting position, and only by stacking the unit sheets so that the widthwise edges thereof are aligned with each other, the overlap of the internal electrodes can be set to the design value. It can be, for example, when producing capacitors can improve the accuracy of.

According to the eighth aspect, in addition to the above effects, since the region where the internal electrode is not formed is provided at a predetermined cycle in the length direction of the green sheet, the internal electrode is formed. A unit sheet that belongs to the one side by cutting the green sheet at right angles to the lengthwise direction of the green sheet to form the unit sheet at a predetermined position in a non-open area, and stacking the unit sheets. Since the portion excluding one end in the width direction of the internal electrode formed in is overlapped with the portion excluding the other end in the width direction of the internal electrode formed on the unit sheet belonging to the other side, at the time of stacking the unit sheets. The stacking of the internal electrodes can be set to a design value by simply stacking the unit sheets so that the edges in the width direction coincide with each other without the need to shift and stack them. When it can improve the accuracy.

[Brief description of the drawings]

FIG. 1 is a diagram showing a green sheet of a first example according to an embodiment of the present invention.

FIG. 2 is a partially cutaway sectional perspective view showing a multilayer capacitor.

FIG. 3 is a diagram showing a conventional internal electrode printing pattern.

FIG. 4 is a diagram showing the relationship between internal electrodes and cutting lines.

FIG. 5 is a diagram illustrating a stacked state of green sheets having internal electrodes formed thereon.

FIG. 6 is a diagram illustrating a state of stacking deviation in a conventional example.

FIG. 7 is a diagram illustrating a method of continuously printing internal electrodes according to the first embodiment of the present invention.

FIG. 8 is a diagram showing a unit sheet in the first embodiment of the present invention.

FIG. 9 is a diagram for explaining a stacking procedure of unit sheets in the first embodiment of the present invention.

FIG. 10 is a diagram for explaining a laminated state of internal electrodes according to the first embodiment of the present invention.

FIG. 11 is a diagram showing positions of internal electrodes and cutting positions into laminated chips according to the first embodiment of the present invention.

FIG. 12 is a perspective view showing a laminated chip according to the first embodiment of the present invention.

FIG. 13 is a diagram showing formation of side margins on a laminated chip according to the first embodiment of the present invention.

FIG. 14 is a perspective view showing a multilayer capacitor according to the first embodiment of the present invention.

FIG. 15 is a diagram illustrating a method of continuously printing internal electrodes according to the second embodiment of the present invention.

FIG. 16 is a diagram showing another internal electrode printing pattern according to the first and second embodiments of the present invention.

FIG. 17 is a diagram showing a green sheet according to a third embodiment of the present invention.

FIG. 18 is a diagram illustrating a method of continuously printing internal electrodes according to the third embodiment of the present invention.

FIG. 19 is a diagram showing a unit sheet according to a third embodiment of the present invention.

FIG. 20 is a diagram showing a green sheet according to a fourth embodiment of the present invention.

FIG. 21 is a diagram illustrating a unit sheet and a stacking method for the same according to a fourth embodiment of the present invention.

FIG. 22 is a diagram showing another internal electrode printing pattern according to the third and fourth embodiments of the present invention.

FIG. 23 is a diagram showing another embodiment of the present invention.

[Explanation of symbols]

11 ... Green sheet, 12 ... Internal electrodes, 13, 13
A, 13B ... Unit sheet, 14 ... Laminate, 15 ... Cutting line, 16 ... Laminated chip, 17 ... Insulating material, 18 ... External electrode, 19 ... Laminated capacitor, 21-28 ... Roller, 3
0 ... Rotary screen, 31 ... Screen plate, 32
... squeegee.

Claims (8)

[Claims] 1. A green sheet is continuously printed with an internal electrode having a predetermined width in a strip shape on the surface of the green sheet, the green sheet on which the internal electrode is printed is dried, and the dried green sheet is cut into a predetermined shape to form a unit sheet. After being formed, a portion of the unit electrode belonging to one side excluding one end in the width direction is opposed to a portion of the unit electrode belonging to the other side excluding the other end in the width direction. As described above, at least two layers of the unit sheets are laminated and pressure-bonded to each other, except that the facing regions of the internal electrodes are substantially in the center and the internal electrodes other than the facing regions of the internal electrodes formed on the unit sheets on the one side and the other side A laminated chip is formed by cutting in a layer direction at a predetermined position so that a portion in the region is exposed on the cut surface, and the laminated sheet is formed on the outer surface of the laminated chip on the unit sheet belonging to the one side. An external electrode that is conductively connected to a portion of the internal electrode other than the facing area and an external electrode that is conductively connected to a portion of the internal electrode other than the facing area formed on the unit sheet belonging to the other side are formed. And a laminated electronic component. 2. When the green sheet is cut to obtain a unit sheet, the internal electrodes are cut so as to have the same pattern, and when the unit sheets are stacked, the unit sheet belonging to the one side is formed. At least two layers of the unit sheets are laminated so that a portion except one end in the width direction of the formed internal electrode is shifted so as to face a portion other than the other end in the width direction of the internal electrode formed on the unit sheet belonging to the other side. The method for manufacturing a laminated electronic component according to claim 1, wherein the method is followed by pressure bonding. 3. When cutting the green sheet to obtain a unit sheet, the internal electrodes are cut into the same shape so as to have a pattern displaced in the width direction by a predetermined distance, and when the unit sheets are stacked, The unit sheets are laminated so that their peripheral edges are aligned with each other, and a portion except one end in the width direction of the internal electrodes formed on the unit sheet belonging to the one side is the width direction of the internal electrodes formed on the unit sheet belonging to the other side. 2. The method for manufacturing a laminated electronic component according to claim 1, wherein at least two layers of the unit sheets are laminated and pressure-bonded so as to face a portion other than the other end. 4. After depositing an insulating material on at least an exposed portion of the laminated chip facing the internal electrode,
The method for manufacturing a laminated electronic component according to claim 1, wherein the external electrode is formed. 5. The plurality of internal electrodes having a predetermined width extending in the length direction of the green sheet are formed in parallel by a predetermined distance in the width direction of the green sheet. A method for manufacturing a laminated electronic component according to any one of claims. 6. The plurality of internal electrodes of a predetermined width extending in the width direction of the green sheet are formed in parallel by printing at a predetermined interval in the length direction of the green sheet. A method for manufacturing a laminated electronic component according to any one of claims. 7. The method of manufacturing a laminated electronic component according to claim 5, wherein the internal electrodes are formed by printing while being staggered alternately in the width direction at a predetermined cycle in the length direction of the green sheet. 8. The method for manufacturing a laminated electronic component according to claim 6, wherein regions in which the internal electrodes are not formed are provided at a predetermined cycle in the length direction of the green sheet.