JP2008288332A - Ferrite paste and method of manufacturing laminated ceramic component - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide ferrite paste capable of suppressing the generation of cracks in a ferrite layer in a manufacturing process of a laminated ceramic component. <P>SOLUTION: The ferrite paste contains ferrite powder and an organic vehicle. The organic vehicle contains a binder composed of polyvinyl acetal-based resin, ethyl cellulose and an organic solvent. The binder and the polyvinyl acetal-based resin contained in the ferrite paste are 3.0 to 5.0 pts.wt. and 1.0 to 2.0 pts.wt., respectively, with respect to 100 pts.wt. of the ferrite powder, and the remaining part is ethyl cellulose. <P>COPYRIGHT: (C)2009,JPO&INPIT

Description

  The present invention relates to a ferrite paste and a method for manufacturing a multilayer ceramic component.

  In general, multilayer ceramic components such as chip inductors, chip beads, chip transformers, and LC composite chip components are fired after a ferrite layer formed from a ferrite paste and a conductor pattern formed from a conductor paste are laminated and integrated. It is manufactured by forming an external electrode on this.

As an example of the multilayer ceramic component, Japanese Patent Application Laid-Open No. 2004-228561 describes a multilayer inductance element. In the following Patent Document 1, a ferrite paste containing an ethylcellulose resin as a binder and a conductor paste are alternately laminated by a printing method, and this is cut into a predetermined size, thereby forming a laminate having a coiled conductor inside. To do. By firing this multilayer body and forming external electrodes thereon, the multilayer inductance element shown in Patent Document 1 below is manufactured.
Japanese Patent No. 3035479

  However, in the manufacturing method disclosed in Patent Document 1, when the ferrite layer is formed by printing the ferrite paste so as to cover the conductor pattern formed from the conductor paste, the thickness of the ferrite layer located beside the conductor pattern However, it tends to be thicker than the thickness of the ferrite layer located immediately above the conductor pattern. In the portion where the ferrite layer is thick, the drying is delayed as compared with the thin portion, so that cracks tend to occur. The occurrence of this crack is also attributed to the hard and brittle nature of the ethyl cellulose resin contained as a binder in the ferrite paste. Moreover, since the thickness difference of a ferrite layer becomes large, so that a conductor pattern is thick, there exists a tendency for a crack to generate | occur | produce easily.

  Further, in the manufacturing method shown in Patent Document 1, the temperature at which the strength of the ferrite layer decreases, the shape retaining property decreases, and the conductor contracts due to the binder removal in the heat treatment (binder removal, firing, etc.) of the laminate. In the region, as the conductor contracts, cracks tend to occur in the ferrite layer that is in close contact with the conductor.

  The present invention has been made in view of the above-described problems of the prior art, and provides a ferrite paste capable of suppressing the generation of cracks in a ferrite layer in a manufacturing process of a multilayer ceramic component, and a method for manufacturing the multilayer ceramic component. The purpose is to provide.

  The ferrite paste according to the present invention is a ferrite paste containing a ferrite powder and an organic vehicle, and the organic vehicle contains a binder composed of a polyvinyl acetal resin and ethyl cellulose, and an organic solvent. Is 3.0 to 5.0 parts by weight with respect to 100 parts by weight of ferrite powder, and the polyvinyl acetal resin content is 1.0 to 2.0 parts by weight with respect to 100 parts by weight of ferrite powder. The content of ethyl cellulose is the remainder obtained by removing the content of the polyvinyl acetal resin from the content of the binder.

  The method of manufacturing a multilayer ceramic component according to the present invention includes a step of forming a ferrite green layer from a ferrite paste, a step of drying the ferrite green layer to form a ferrite dry layer, and printing a conductor paste on the ferrite dry layer The conductor paste is dried to form a conductor pattern, and another ferrite dry layer and a conductor pattern are alternately stacked on the ferrite dry layer on which the conductor pattern is formed. The ferrite paste contains ferrite powder and an organic vehicle, the organic vehicle contains a binder composed of a polyvinyl acetal resin and ethyl cellulose, and an organic solvent, and contains a binder. The amount is 3.0 to 5.0 parts by weight with respect to 100 parts by weight of ferrite powder, The content of the nil acetal resin is 1.0 to 2.0 parts by weight with respect to 100 parts by weight of the ferrite powder, and the content of ethyl cellulose excludes the content of the polyvinyl acetal resin from the content of the binder. It is the remaining part.

  Hereinafter, the ferrite green layer and the ferrite dry layer are collectively referred to as a ferrite layer.

  The ferrite paste according to the present invention contains not only conventionally used ethyl cellulose as a binder but also a polyvinyl acetal resin having higher flexibility than ethyl cellulose. Therefore, the flexibility of the ferrite green layer is increased as compared with the conventional case. As a result, even if shrinkage stress is generated in the ferrite green layer in the ferrite green layer drying step, generation of cracks in the ferrite layer can be suppressed. Moreover, even if the drying progress varies due to the difference in thickness of the ferrite green layer, the generation of cracks in the ferrite layer can be suppressed. Furthermore, according to the present invention, even when the conductor pattern is thick, the generation of cracks due to the difference in thickness of the ferrite green layer can be suppressed.

  Moreover, the polyvinyl acetal resin which the ferrite paste according to the present invention contains as a binder has a higher thermal decomposition temperature range than ethyl cellulose. Therefore, in the heat treatment process (debinder process, firing process) of the laminate, the residual ratio of the binder in the ferrite layer is higher than before in the temperature range where the conductor pattern shrinks, and the ferrite layer has a higher residual ratio of the ferrite layer. The shape retention is improved. As a result, the occurrence of cracks in the ferrite layer can be suppressed.

  When the content of the polyvinyl acetal resin is less than 1.0 part by weight with respect to 100 parts by weight of the ferrite powder, the ferrite layer becomes less flexible, so that the ferrite layer is likely to crack when the ferrite green layer is dried. Tend. In addition, when the laminate is fired, in the temperature range where the conductor pattern shrinks, the residual ratio of the binder in the ferrite layer decreases, the strength of the ferrite layer decreases, and the shape retention becomes low. Since the ferrite layer is pulled by the conductor, cracks tend to occur in the ferrite layer that is in close contact with the conductor pattern. On the other hand, when the content of the polyvinyl acetal resin is more than 2.0 parts by weight with respect to 100 parts by weight of the ferrite powder, the residual rate of the binder in the ferrite layer in the temperature range where the conductor pattern shrinks during firing of the laminate. There is a tendency that cracks are likely to occur in the ferrite layer in close contact with the conductor pattern due to excessive burning of the binder in the firing temperature range after de-buying. Therefore, in the present invention, the occurrence of cracks in the ferrite layer can be suppressed by setting the content of the polyvinyl acetal resin within the above range.

  ADVANTAGE OF THE INVENTION According to this invention, it can suppress that a crack generate | occur | produces in a ferrite layer in the manufacturing process of a multilayer ceramic component.

  Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the accompanying drawings. In the description of the drawings, the same or corresponding elements are denoted by the same reference numerals, and redundant description is omitted.

  FIG. 1 is a perspective view showing a multilayer inductor according to an embodiment of the present invention, FIG. 2 is a sectional view taken along a line connecting terminal electrodes of the multilayer inductor shown in FIG. 1, and FIG. FIG. 2 is a cross-sectional view in a direction orthogonal to a line connecting terminal electrodes of the multilayer inductor shown in FIG. 1.

  The multilayer inductor 1 includes a rectangular parallelepiped element 2 and a pair of terminal electrodes 3 and 3 formed on both side surfaces of the element 2 in the longitudinal direction. As shown in FIGS. 2 and 3, the element 2 includes a magnetic layered portion 4 made of a magnetic material, and a coiled conductor 5 incorporated in the magnetic layered portion 4 and wound in a coil shape. Yes.

  The coiled conductor 5 is made of a conductive material and has a substantially semicircular cross section. Further, as shown in FIG. 2, the lead portions 5 a and 5 b of the coiled conductor 5 are led to the edge of the magnetic laminate 4 and are connected to the terminal electrodes 3 and 3, respectively. Such a coiled conductor 5 is configured by a plurality of continuous conductor patterns 7 in which a conductor paste is printed and laminated.

  The number of turns of the coiled conductor 5 is determined according to the DC resistance and inductance value to be obtained. For example, when the DC resistance is 1Ω or less and the inductance value is 10 μH, the number of turns is 18.5.

  Although the thickness X of the conductor pattern 7 is not specifically limited, For example, it is 90 to 115% of the distance Y between the conductor patterns 7 adjacent to each other in the stacking direction (see FIG. 3).

  Next, a method for manufacturing the multilayer inductor 1 will be described.

  First, a ferrite paste and a conductor paste are prepared.

  The ferrite paste is prepared by blending and kneading ferrite powder (magnetic powder) and an organic vehicle. The organic vehicle contains a binder composed of a polyvinyl acetal resin and ethyl cellulose, and an organic solvent.

  The content of the binder contained in the ferrite paste is 3.0 to 5.0 parts by weight with respect to 100 parts by weight of the ferrite powder. The content of the polyvinyl acetal resin contained in the ferrite paste is 1.0 to 2.0 parts by weight with respect to 100 parts by weight of the ferrite powder. Further, the content of ethyl cellulose contained in the ferrite paste is the remainder obtained by removing the content of the polyvinyl acetal resin from the content of the binder.

As the ferrite powder, Ni—Cu—Zn ferrite powder, Ni—Cu—Zn—Mg ferrite powder, Ni—Cu ferrite powder or the like is used. In producing these ferrite powders, it is preferable to use a Ni compound having a specific surface area of 1.0 to 10 m ² / g and a sulfur component content of 100 to 1000 ppm in terms of S as a raw material. Further, when Ni—Cu—Zn—Mg ferrite powder is used, the composition is Fe ₂ O ₃ = 25 to 52 mol%, ZnO = 0 to 40 mol%, CuO = 0 to 20 mol%, NiO = 1. It is preferable that ~ 65 mol% and MgO is the balance. By using such a Ni-based ferrite powder, it is possible to obtain a multilayer inductor 1 that is excellent in temperature characteristics despite being high density and that can be sintered even below the melting point of Ag (a constituent material of the coiled conductor 5). be able to.

  As the polyvinyl acetal resin contained in the organic vehicle, polyvinyl acetal, polyvinyl butyral, and the like are used, and preferably polyvinyl butyral is used.

  Organic solvents contained in the organic vehicle include alcohols (ethanol, methanol, propanol, butanol, terpineol, etc.), ketones (acetone, etc.), cellosolve (methyl cellosolve, ethyl cellosolve, etc.), ester (methyl acetate, acetic acid, etc.) Ethyl etc.), ether type (ethyl ether, butyl carbitol etc.) etc. can be used and only 1 type may be used or 2 or more types may be used together.

  In addition, the ferrite paste described above includes a plasticizer such as a phthalate ester, a phosphate ester, a fatty acid ester, and a glycol derivative, or a dispersant such as a fatty acid amide, an organic phosphate, and a carboxylic acid. Furthermore, you may contain.

  The conductor paste is prepared, for example, by blending a conductor powder with a binder and an organic solvent at a predetermined ratio and then kneading. For kneading, a three roll, a homogenizer, a sand mill or the like is used.

  As the conductor powder, Ag, an Ag alloy, Cu, Cu alloy, or the like is usually used, but Ag having a low resistivity is preferably used. By using an Ag paste as the conductor paste, a practical Q for a multilayer inductor can be obtained.

  Next, the above ferrite paste is laminated by a printing method until a predetermined thickness is reached. Then, a ferrite paste is further formed on the laminate to form a ferrite green layer, and the ferrite green layer is dried to form a ferrite dry layer having a thickness of about 90 to 150 μm. Next, the above-mentioned conductor paste is printed on the ferrite dry layer, and the conductor paste is dried to form a conductor pattern having a thickness of about 14 to 90 μm. Then, a plurality of other ferrite dry layers and conductor patterns are alternately stacked and printed on the ferrite dry layer on which the conductor pattern is formed. Furthermore, a laminated body before firing is formed by laminating ferrite paste with a predetermined thickness by a printing method. In the obtained laminated body, a spiral laminated winding (coiled conductor 5) having a predetermined number of turns (the number of turns) is formed in a ferrite magnetic body (magnetic body laminated portion 4 comprising a plurality of ferrite layers). Has been.

  Next, the laminate is cut to a predetermined dimension. Since the laminated body usually has a wafer structure in which a plurality of element units are arranged, the wafer-like laminated body is cut into a predetermined size, and each coiled conductor 5 is pre-fired. A plurality of laminate elements are formed. At this time, the wafer-shaped multilayer body is cut so that the end surfaces of the lead portions 5a and 5b of the coiled conductor 5 are exposed from the two opposite side surfaces of the multilayer element. The obtained multilayer element corresponds to the element 2 in the completed multilayer inductor 1 (see FIG. 1).

  Thereafter, the obtained laminate element is subjected to binder removal treatment in the presence of oxygen at 350 to 500 ° C., for example. Next, the element 2 is obtained by integrally firing the multilayer element at, for example, 850 to 900 ° C. for 1 to 2 hours.

  Next, in the element 2 obtained by firing, a conductive paste containing Ag as a main component is applied to the side surface where the end faces of the lead portions 5a and 5b of the coiled conductor 5 are exposed. The terminal electrodes 3 and 3 are formed by baking. Thereafter, the terminal electrodes 3 and 3 are usually further electroplated. The electroplating is preferably performed using copper, nickel and tin, nickel and tin, nickel and gold, nickel and silver, and the like.

  Thus, the multilayer inductor 1 according to this embodiment is completed.

  In the embodiment described above, the ferrite paste contains not only ethyl cellulose conventionally used as a binder but also a polyvinyl acetal resin having higher flexibility than ethyl cellulose. Therefore, the flexibility of the ferrite green layer is increased as compared with the conventional case. As a result, even if shrinkage stress is generated in the ferrite green layer in the ferrite green layer drying step, generation of cracks in the ferrite layer can be suppressed. Moreover, even if the drying progress varies due to the difference in thickness of the ferrite green layer, the generation of cracks in the ferrite layer can be suppressed. Furthermore, according to this embodiment, even when the conductor pattern is thick, it is possible to suppress the occurrence of cracks due to the thickness difference of the ferrite green layer.

  The polyvinyl acetal resin which the ferrite paste which concerns on embodiment mentioned above contains as a binder has a thermal decomposition temperature range higher than ethyl cellulose. Therefore, in the heat treatment process (debinder process, firing process) of the laminated body, in the temperature range where the conductor pattern 7 contracts, the polyvinyl acetal resin is not easily decomposed, and the residual ratio of the binder in the ferrite layer (magnetic laminate part 4) is low. Since it increases more than before, the shape retention of the ferrite layer is improved. As a result, it is possible to suppress the occurrence of cracks in the ferrite layer (magnetic layered portion 4). In addition, since generation | occurrence | production of a crack is suppressed, it can also be expected that the inductance value of the multilayer inductor 1 is set to a desired value.

  When the content of the polyvinyl acetal resin contained in the ferrite paste is less than 1.0 part by weight with respect to 100 parts by weight of the ferrite powder, the ferrite layer becomes less flexible. There is a tendency for cracks to occur easily. Further, when the laminate is fired, in the temperature range where the conductor pattern 7 contracts, the residual ratio of the binder in the ferrite layer (magnetic laminate portion 4) decreases, and the strength of the ferrite layer (magnetic laminate portion 4) decreases. Since the ferrite layer (magnetic layered portion 4) in close contact with the conductor pattern 7 is pulled by the conductor pattern 7 due to low formability, cracks occur in the ferrite layer (magnetic layered portion 4) in close contact with the conductor pattern 7. It tends to be easy. On the other hand, when the content of the polyvinyl acetal resin is more than 2.0 parts by weight with respect to 100 parts by weight of the ferrite powder, the residual rate of the binder in the ferrite layer in the temperature range where the conductor pattern shrinks during firing of the laminate. It becomes excessive, and there is a tendency that cracks are likely to occur in the portion that is in close contact with the conductor pattern due to the rapid burning of the binder in the firing temperature range after de-buying. Therefore, in the present invention, the occurrence of cracks in the ferrite layer can be suppressed by setting the content of the polyvinyl acetal resin to 1.0 to 2.0 parts by weight with respect to 100 parts by weight of the ferrite powder.

  The preferred embodiment of the present invention has been described in detail above, but the present invention is not limited to the above embodiment. For example, the present invention can be applied to a sheet method in which an element is manufactured by laminating and pressing a magnetic green sheet on which a conductor pattern constituting a coiled conductor is formed.

  The present invention can also be applied to a ceramic paste whose main component is ceramic powder such as a dielectric instead of ferrite powder.

  EXAMPLES Hereinafter, although an Example demonstrates this invention still in detail, this invention is not limited to these Examples.

(Sample 3)
[Production of multilayer inductor]
According to the manufacturing method described above, 10,000 multilayer inductors of Sample 3 were manufactured as follows. In the production of the multilayer inductor, first, a ferrite paste was produced. The ferrite paste was prepared by blending Ni—Cu—Zn—Mg ferrite powder having an average particle size of 0.7 μm as a magnetic powder in a predetermined ratio together with an organic vehicle and a solvent, and then wet-mixing with a ball mill. The specific composition of the ferrite powder was Fe ₂ O ₃ = 49.0 mol%, NiO = 19.0 mol%, CuO = 11.0 mol%, Zn = 20.0 mol%, and the balance was MgO. As a binder contained in the organic vehicle, polyvinyl butyral (a kind of polyvinyl acetal resin) and ethyl cellulose were used. The content of the binder contained in the ferrite paste was 3.5 parts by weight with respect to 100 parts by weight of the ferrite powder. The content of polyvinyl butyral contained in the ferrite paste was 1.0 part by weight with respect to 100 parts by weight of the ferrite powder. The content of ethyl cellulose contained in the ferrite paste was the remainder (2.5 parts by weight) excluding the content of polyvinyl butyral from the content of the binder. Turpineol was used as the organic solvent contained in the organic vehicle.

  Moreover, the conductor paste was produced. The conductor paste was prepared by blending Ag powder having an average particle size of 0.6 μm together with a binder and a solvent at a predetermined ratio and then kneading.

  Next, the above ferrite paste was laminated by a printing method until a predetermined thickness was reached. Then, a ferrite paste was further formed on the laminate to form a ferrite green layer, and the ferrite green layer was dried to form a ferrite dry layer having a thickness of 100 μm. Next, the above-mentioned conductor paste was printed on the ferrite dry layer, and the conductor paste was dried to form a conductor pattern with a thickness of 30 μm. And on the ferrite dry layer in which the conductor pattern was formed, a plurality of other ferrite dry layers and conductor patterns were alternately stacked and printed and laminated. Further thereon, a ferrite paste was laminated at a predetermined thickness by a printing method to form a laminate before firing in which 18.5 turns of laminated winding (coiled conductor 5) was built. The thickness of the obtained laminate was 1.0 mm. Next, this laminate was cut to obtain a plurality of laminate elements having a length of 1.8 mm and a width of 0.9 mm.

  Next, a binder removal treatment was performed on the multilayer element at 500 ° C. in the presence of oxygen. After the binder removal treatment, the multilayer element was baked at 850 ° C. for 2 hours. Next, a conductive paste mainly composed of Ag was applied to the side surface where the end face of the lead portion of the coiled conductor 5 was exposed in the laminated element after firing, and baked at about 600 ° C. Furthermore, Cu, Ni, and Sn were electroplated on the surface of the baked Ag to form terminal electrodes. Thus, a 1608-shaped multilayer inductor was obtained.

[Evaluation]
In the manufacturing process described above, it was inspected whether or not a crack occurred in each laminated body element before firing. Next, the number of laminate elements in which the occurrence of cracks was confirmed was divided by the total number of obtained laminate elements to determine the crack occurrence rate (unit:%). Similarly, the crack occurrence rate was calculated | required also about the laminated body element after baking. The results are shown in Table 1. In Table 1, when the crack occurrence rate was 0%, it was determined as ◯, and when the crack occurrence rate was greater than 0%, it was determined as x. The crack occurrence rate is preferably 0%, and the determination is preferably ○.

  In addition, when both the crack occurrence rate before firing and the crack occurrence rate after firing were “good”, the overall judgment was “good”. In all other cases, the overall judgment was x. It is preferable that the comprehensive determination is “good”. The results are shown in Table 1.

(Standard sample, Sample 1, 2, 4-17)
Table 1 shows the binder content (unit: parts by weight) contained in the ferrite paste with respect to 100 parts by weight of the ferrite powder when the multilayer inductors of the standard sample, Samples 1, 2, 4 to 17 are manufactured. Value. Further, the content (unit: parts by weight) of polyvinyl butyral contained in the ferrite paste was set to the values shown in Table 1 with respect to 100 parts by weight of the ferrite powder. The content of ethyl cellulose contained in the ferrite paste was the remainder obtained by removing the content of polyvinyl butyral from the content of the binder.

  Each of the multilayer inductors of the standard sample and samples 1, 2, 4 to 17 was manufactured in the same manner as the sample 3 except that the contents of the binder, polyvinyl butyral, and ethyl cellulose were set to the values shown in Table 1, respectively. .

  Similarly to the case of Sample 3, the crack generation rate before and after firing was measured for each of the standard sample and Samples 1, 2, and 4-17. The results are shown in Table 1.

  As shown in Table 1, in Samples 3 to 7, the binder content is 3.0 to 5.0 parts by weight with respect to 100 parts by weight of ferrite powder, and the polyvinyl butyral content is ferrite powder 100. It was 1.0-2.0 weight part with respect to the weight part. As a result, it was confirmed that in Samples 3 to 7, the crack generation rate before firing and after firing was lower than that of the standard sample and Samples 1, 2, and 8-17.

  On the other hand, in the standard samples and Samples 1, 2, and 8 to 17, the binder content is in the range of 3.0 to 5.0 parts by weight with respect to 100 parts by weight of the ferrite powder, and the polyvinyl butyral content is , Out of the range of 1.0 to 2.0 parts by weight with respect to 100 parts by weight of the ferrite powder. As a result, it was confirmed that the crack generation rate before firing and after firing was higher in the standard sample and Samples 1 and 2 than in Samples 3-7. Moreover, in samples 8-17, it was confirmed that the crack generation rate after baking is high compared with samples 3-7.

  In FIG. 4, the content of polyvinyl butyral contained in each ferrite paste used in the production of the standard sample and Samples 1 to 17 and the crack generation rate before and after firing corresponding thereto are plotted.

  As shown in FIG. 4, when the content of polyvinyl butyral contained in the ferrite paste is in the range of 1.0 to 2.0 parts by weight with respect to 100 parts by weight of the ferrite powder, the crack occurrence rate after firing is It was confirmed to be minimal. Moreover, it was confirmed that the crack generation rate after baking becomes high, so that content of polyvinyl butyral becomes more than 2.0 weight part.

1 is a perspective view showing a multilayer inductor according to an embodiment of the present invention. It is sectional drawing which follows the line | wire which connects the terminal electrodes of the multilayer inductor shown in FIG. FIG. 2 is a cross-sectional view in a direction orthogonal to a line connecting terminal electrodes of the multilayer inductor shown in FIG. 1. It is a figure which shows the relationship between content of the polyvinyl butyral in a ferrite paste, and a crack generation rate based on an Example.

Explanation of symbols

  DESCRIPTION OF SYMBOLS 1 ... Multilayer inductor, 2 ... Element, 3 ... Terminal electrode, 4 ... Magnetic body laminated part, 5 ... Coiled conductor, 5a, 5b ... Lead-out part, 5c, 5d ... Edge, 6a, 6b ... Gap, 7 ... Conductor pattern.

Claims (2)

A ferrite paste containing ferrite powder and an organic vehicle,
The organic vehicle contains a binder composed of a polyvinyl acetal resin and ethyl cellulose, and an organic solvent,
The content of the binder is 3.0 to 5.0 parts by weight with respect to 100 parts by weight of the ferrite powder,
The content of the polyvinyl acetal resin is 1.0 to 2.0 parts by weight with respect to 100 parts by weight of the ferrite powder,
The ferrite paste, wherein the content of the ethyl cellulose is a balance obtained by removing the content of the polyvinyl acetal resin from the content of the binder. Forming a ferrite green layer from a ferrite paste;
Drying the ferrite green layer to form a ferrite dry layer;
Printing a conductor paste on the ferrite dry layer, and drying the conductor paste to form a conductor pattern; and
On the ferrite dry layer on which the conductor pattern is formed, the method further comprises the step of alternately stacking another ferrite dry layer and the conductor pattern to form a laminate,
The ferrite paste contains a ferrite powder and an organic vehicle,
The organic vehicle contains a binder composed of a polyvinyl acetal resin and ethyl cellulose, and an organic solvent,
The content of the binder is 3.0 to 5.0 parts by weight with respect to 100 parts by weight of the ferrite powder,
The content of the polyvinyl acetal resin is 1.0 to 2.0 parts by weight with respect to 100 parts by weight of the ferrite powder,
The method for producing a multilayer ceramic component, wherein the content of the ethyl cellulose is a balance obtained by removing the content of the polyvinyl acetal resin from the content of the binder.

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