WO2005016845A1 - 誘電体磁器組成物、積層型セラミックコンデンサ、および電子部品 - Google Patents
誘電体磁器組成物、積層型セラミックコンデンサ、および電子部品 Download PDFInfo
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- H01B3/00—Insulators or insulating bodies characterised by the insulating materials; Selection of materials for their insulating or dielectric properties
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- H01B3/12—Insulators or insulating bodies characterised by the insulating materials; Selection of materials for their insulating or dielectric properties mainly consisting of inorganic substances ceramics
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- H—ELECTRICITY
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- H01G—CAPACITORS; CAPACITORS, RECTIFIERS, DETECTORS, SWITCHING DEVICES, LIGHT-SENSITIVE OR TEMPERATURE-SENSITIVE DEVICES OF THE ELECTROLYTIC TYPE
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Definitions
- Dielectric ceramic composition Dielectric ceramic composition, multilayer ceramic capacitor, and electronic component
- the present invention relates to a dielectric porcelain composition that can be used as a dielectric material for a capacitor
- the present invention relates to a multilayer ceramic capacitor and an electronic component having a portion made of a dielectric material.
- a titanate as a main component such as barium titanate (BaTiO 3) is attracted between electrodes.
- Multilayer ceramic capacitors used as electric conductor materials are characterized by their small size, large capacity, excellent electrical properties in the high frequency band, excellent heat resistance, and easy mass production. It is an indispensable part for consumer and consumer electronic devices.
- An organic binder, a plasticizer, a solvent, a dispersant, and the like are added to the raw material powder of the porcelain composition in step 3, and these are mixed to prepare a slurry.
- a green sheet of a ceramic composition is prepared from the slurry by a doctor blade method or the like.
- a conductive paste containing a metal powder for forming an internal electrode is printed on the surface of the green sheet.
- a plurality of green sheets having the conductive paste printed on the surface in this manner are pressure-bonded in a state where the conductive paste and the green sheets are stacked alternately.
- the laminate is fired at a predetermined firing temperature to be integrated (firing step).
- the ceramic composition in each green sheet is sintered to form a ceramic dielectric layer, and the metal powder in each conductive paste is sintered to form an internal electrode.
- the BaTiO-based porcelain composition is appropriately sintered in the above-described firing step to form a multilayer ceramic capacitor.
- the porcelain composition In order to exhibit good dielectric properties in a denser, the porcelain composition needs to be fired at a high temperature of about 1150-1350 ° C. in the firing step.
- the metal material for forming the internal electrodes can be fired at the same firing temperature as the porcelain composition, which has a higher melting point than the firing temperature in the firing process, and is substantially oxidized in the firing process in which the force goes through a high temperature. Need not be.
- Pd, Pt, and their alloys are known as metallic materials that satisfy such requirements. However, these metal materials are not preferred because they are expensive. When these metal materials are used as the internal electrode materials, as the number of layers increases in order to increase the capacity of the multilayer ceramic capacitor, the ratio of the electrode material cost to the manufacturing cost of the multilayer ceramic capacitor increases. .
- Ni and Ni alloys as internal electrode materials has been studied. However, Ni may be oxidized in high-temperature baking in an atmosphere containing oxygen such as the air, and may lose its function as an electrode. In addition, the oxide of Ni may dissolve in the porcelain composition and deteriorate the performance of the capacitor.
- the firing step is performed in a reducing atmosphere or a low oxygen atmosphere containing hydrogen to prevent the oxidation of Ni
- the BaTiO-based porcelain composition is reduced and the valence of Ti decreases from 4 to 3
- oxygen vacancies increase in the BaTiO-based porcelain composition, and the life of the porcelain composition (time until insulation deterioration) tends to be shortened.
- multilayer ceramic capacitors that use N or Ni alloy as the internal electrode material have performance similar to or better than multilayer ceramic capacitors with Pd internal electrodes according to the conventional technology. It is difficult to get.
- Patent Document 1 JP-A-61-36170
- Patent Document 2 JP-A-6-5460
- Patent Document 3 JP-A-6-342735
- Patent Document 4 JP-A-8-124785
- Patent Document 5 JP-A-9-1171937
- the present invention has been conceived under such circumstances, and has a high insulation resistance even when fired in a reducing atmosphere, and a degree of deterioration of the insulation resistance (IR) over time.
- the reduction-resistant dielectric ceramic composition has a small (ie, a long IR accelerated life) and a small change in capacitance with temperature, and the composition is used as a material for a dielectric layer between electrodes. It is an object of the present invention to provide a multilayer ceramic capacitor and an electronic component having a portion made of the composition.
- a dielectric ceramic composition is composed of 100 mole parts of BaTiO, x monolithic part of MnO, x mole part of Cr ⁇ , Y ⁇ and / or
- oxides selected from the group consisting of Ba ⁇ , CaO, SrO
- Total X molar parts including Si ⁇ and / or GeO total X molar parts, 0.5 ⁇ x ⁇ 4.5, 0. 05 ⁇ x ⁇ 1.0, x + x ⁇ 4.55, 0.25 ⁇ x ⁇ 1.5, 0.5 ⁇ x ⁇ 6, and 0.5 ⁇ x ⁇ 6
- the dielectric ceramic composition according to the first aspect of the present invention preferably further has a V ⁇ of 0.01-1.0.
- the dielectric ceramic composition of the first aspect of the present invention preferably further contains 0.2 to 1.0 mol parts of A 1 O and Z or B ⁇ in total.
- a multilayer ceramic capacitor having a multilayer structure including a ceramic dielectric and electrodes.
- the ceramic dielectric comprises a dielectric porcelain composition having one of the configurations described above with respect to the first aspect of the present invention.
- the electrode is made of Ni or an alloy containing Ni.
- an electronic component is the
- the present inventors have been concerned with BaTiO-based dielectric porcelain compositions that achieve the above-mentioned objects, and
- BaTiO2 containing MnO and Cr2O was used as a basic composition, and additional components for further improving each performance were studied. As a result, it was confirmed that the addition of rare-earth elements such as Y ⁇ and Ho O improves the IR accelerated life (reliability).
- FIG. 1 is a cross-sectional view of a multilayer ceramic capacitor.
- FIG. 2 is a table summarizing the composition (excluding BaTiO) of a dielectric ceramic composition constituting a dielectric layer in the multilayer ceramic capacitor of Example 121.
- FIG. 3 is a table summarizing the compositions (excluding BaTiO) of dielectric ceramic compositions constituting dielectric layers in the multilayer ceramic capacitors of Examples 22-33 and Comparative Examples 18-18.
- FIG. 4 is a table summarizing the results of performance studies performed on the multilayer ceramic capacitor of Example 1-121.
- FIG. 5 is a table summarizing the results of performance investigations performed on the multilayer ceramic capacitors of Examples 22-33 and Comparative Examples 18-18.
- FIG. 1 is a cross-sectional view of a multilayer ceramic capacitor 10 which is an example of an electronic component formed using the dielectric ceramic composition according to the present invention.
- the multilayer ceramic capacitor 10 has a dielectric layer 11, a plurality of internal electrodes 12, and a pair of external electrodes 13.
- the dielectric layer 11 is made of the dielectric ceramic composition of the present invention, and a part thereof is provided so as to be interposed between the internal electrodes 12.
- One set of internal electrodes 12 is electrically connected to one external electrode 13, and another set of internal electrodes 12 is electrically connected to the other external electrode 13.
- the inner electrode 12 is made of N or Ni alloy, and the outer electrode 13 is made of, for example, Cu or Cu alloy.
- the dielectric ceramic composition of the present invention contains BaTiO, MnO, and Cr2O. Also,
- Mn ⁇ is used to improve the reduction resistance of the present dielectric porcelain composition (ie, to suppress a decrease in insulation resistance of the present dielectric porcelain composition due to firing in a reducing atmosphere). It is contained.
- the content of Mn ⁇ with respect to 100 mol parts of BaTiO is X monolith part, 0.5 ⁇ x ⁇
- Mn ⁇ is contained in the range of 4.5. If it is less than X force, the insulation resistance
- Cr ⁇ has a capacitance in order to improve the reduction resistance and in the presence of MnO.
- X + x should be 4.55 or less, as it can be too large.
- the firing temperature required for obtaining a sintered body may be unduly high.
- An oxide (AO) selected from the group consisting of Ba ⁇ , Ca ⁇ , and Sr ⁇ forces, and SiO and Ge ⁇ forces,
- a ⁇ is contained in the range of 0.5 ⁇ x ⁇ 6.0.
- BaTi Assuming that the total content of MO per 100 mole parts of O is x mole parts, the range of 0.5 ⁇ 0.5 ⁇ 6.0
- MO is contained in the box of 3255. X or less than the X force is sufficient as a sintering aid.
- the capacitance temperature dependency may increase.
- the dielectric porcelain composition of the present invention may contain VO.
- V O is the IR accelerated life
- V O is contained, it is
- the dielectric porcelain composition of the present invention may contain Al O and Z or B O.
- Al O and / or B O further increase the firing temperature required for sintering the dielectric ceramic composition.
- Is X mole parts, Al O and / or B ⁇ are contained in the range of 0.2 ⁇ 1.0
- the dielectric ceramic composition of the present invention has a high level, a high insulation resistance and a high level, and a high breakdown voltage when subjected to firing at, for example, 1350 ° C or less in a reducing atmosphere or a low oxygen atmosphere. It is possible to have a sufficient life in a high-temperature, high-voltage acceleration test, and to set a small change in capacitance with respect to a change in temperature.
- the dielectric constant is 3000 or more at 1 kHz
- the volume resistance product (CR product) under high voltage (5 V / am) is 2000 ⁇ 'F or more.
- the breakdown voltage should be 70 V / ⁇ m or more
- the rate of decrease in capacitance due to the application of a DC voltage of 3 V / am should be 30% or less
- the insulation resistance when applying a voltage of 30 V / zm at 200 ° C should be 10 5
- the time until the resistance becomes ⁇ or less (that is, the IR accelerated life) can be set to 1 hour or more.
- the capacitance temperature dependency Can satisfy the EIA standard X7R characteristics (ie, the rate of change of the capacitance at -55 to 125 ° C is within ⁇ 15% of the capacitance at the reference temperature of 25 ° C), and
- the JIS B characteristics ie, a change in capacity of -25 to 85 ° C is ⁇ 10% of the capacity at a reference temperature of 20 ° C).
- the TiO powder and oxides such as Mn, Cr, Y, ⁇ , and V are weighed and mixed so as to have a predetermined composition, and calcined at 80-1200 ° C for 115 hours. Next, the mixed powder after calcination is pulverized. In order to obtain excellent dielectric properties in the porcelain composition, it is preferable to carry out pulverization until the average particle size becomes 0.1 ⁇ m or less.
- oxide glass powder components that become oxide glass, such as AO (Ba ⁇ , Ca ⁇ , SrO), MO (SiO, GeO), Al ⁇ , and B ⁇ , are heated and melted at high temperature, then rapidly cooled, and pulverized.
- AO Ba ⁇ , Ca ⁇ , SrO
- MO SiO, GeO
- Al ⁇ aluminum ⁇
- a glass powder, an organic binder, a plasticizer, a solvent, a dispersant, and the like are added to the above-mentioned calcined powder, and these are mixed to prepare a slurry.
- a green sheet having a predetermined thickness is formed from the slurry by a doctor blade method or the like.
- a conductive paste containing metal powder for forming internal electrodes is printed on the surface of the green sheet.
- the plurality of green sheets having the conductive paste printed on the surface in this manner are pressure-bonded in a state where the conductive paste and the green sheets are stacked so that the green sheets are located alternately.
- this laminate is subjected to pretreatment heating for removing the binder, sintering at a high temperature of 1100-1350 ° C (sintering step) for sintering, and reoxidation treatment in a predetermined oxidizing atmosphere and high temperature.
- sintering step a high temperature of 1100-1350 ° C
- reoxidation treatment in a predetermined oxidizing atmosphere and high temperature.
- the firing temperature is preferably 1350 ° C or lower.
- a pair of external electrodes 13 which are terminals for connection to an external circuit are formed at predetermined positions of the laminate.
- the multilayer ceramic capacitor 10 can be manufactured. Wear.
- Example 11 The composition of the dielectric ceramic composition (excluding BaTiO) constituting the interelectrode dielectric layer of the capacitor of FIG.
- Table 2 summarizes the composition of the dielectric ceramic composition (excluding BaTiO) constituting the interelectrode dielectric layer of the capacitors of Examples 22-33 and Comparative Examples 18-18. Summarize. In the tables of FIGS. 2 and 3, the relative amount of each oxide relative to 100 mole parts of BaTiO is listed.
- each of the capacitors of Example 133 and Comparative Example 118 first, the BaTiO powder (average particle diameter 0.4 ⁇ m) obtained by the oxalate coprecipitation method and the MnO powder were used. , Cr 2 O powder, VO powder, and, if added, Y ⁇ powder and Ho 2 O powder were weighed and mixed, and then calcined at 1 100 ° C for 7 hours. Thereafter, the mixed powder was pulverized to obtain a first oxide powder having an average particle size of 0.1 ⁇ m or less.
- Carbonates added in Ba, Ca, and Sr for obtaining the function of the sintering aid, SiO and Z or Ge O for obtaining the function of the sintering aid, Al O and Z or B ⁇ was weighed and mixed, and then calcined at 1250 ° C. for 2 hours. Thereafter, the powder was pulverized to obtain a second oxide powder having an average particle diameter of 0.1 ⁇ m or less.
- a raw material powder was obtained by blending these two types of oxide powders with a predetermined composition.
- a toluene / ethanol solvent containing a plasticizer and a dispersing agent was added to l OOOg of the powdered raw material, and the mixture was dispersed using a ball mill for 2 hours to obtain a slurry having a viscosity of about 200 cps. Prepared. Thereafter, a slurry was applied to the PET film using a lip coater-type coating apparatus to produce a green sheet having a thickness of 2.5 / im.
- an internal electrode pattern (thickness: 1.5 / m) was formed by printing a conductive paste containing Ni powder on the green sheet. After removing the PET film, which was the base material, from the green sheets having the pattern for internal electrodes formed on the surface in this way, Then, the internal electrode patterns and the green sheets were stacked alternately (effective stacking number: 350) and then heat-pressed.
- this laminate was cut into a predetermined size to obtain a green chip.
- the green chip was subjected to a binder removal treatment by heating it in a nitrogen gas at 400 ° C. for 12 hours.
- the green chip was baked (sintered) by heating at 1100-1350 ° C for 4 hours in a humidified mixed gas of nitrogen and hydrogen.
- the ceramic composition in each green sheet is sintered to form a dielectric layer, and the Ni powder in each conductive paste is sintered to form an internal electrode.
- the firing temperature has been specified in advance for each type of green chip or green sheet. Specifically, a sample having the same configuration as that of each green chip was fired while changing the firing temperature, and the lower limit firing temperature at which a dense sintered body was obtained was obtained.
- the sintered laminate subjected to the firing treatment was annealed by heating at 1000 ° C for 3 hours in a humidified nitrogen gas.
- each of the capacitors of Example 133 and Comparative Example 118 was produced.
- the size of each capacitor was 3.1 mm in length, 1.6 mm in width, and 1.6 mm in thickness.
- the thickness of the effective dielectric layer was 2.0 ⁇ m, and the thickness of the internal electrodes was 1.2 ⁇ m.
- Example 113 and Comparative Example 118 For each of the eight capacitors, the dielectric constant, the dielectric loss (tan ⁇ ), the CR product, the breakdown voltage, the temperature dependence of the capacitance, the DC-Bias characteristic, and the IR The life was examined. The survey results are shown in the tables of Fig. 4 and Fig. 5.
- the values of the dielectric constant and the dielectric loss (tan ⁇ ) were determined under the conditions of IV and 1.0 kHz from the capacitance at 20 ° C., the electrode area and the thickness of the dielectric.
- the CR product was determined by measuring the value of the insulation resistance for 1 minute when 5 V was applied per 1 ⁇ m of dielectric thickness at 25 ° C, and multiplying the measured value by the capacitance. Was.
- the CR value is an indicator of the magnitude of insulation resistance, and is therefore an indicator of reduction resistance.
- the breakdown voltage the voltage applied to the capacitor was continuously increased, and the voltage when a current of 10 mA or more flowed was measured with 50 capacitors for each composition.
- the central value of the 50 measured values for each capacitor is listed in the table as a representative value.
- the capacitance was measured at various points in the temperature range of -55 to 125 ° C using an LCR meter with the constant side voltage set to IV. It was examined whether the capacitance at ° C was within ⁇ 15%.
- the B characteristic of the JIS standard use an LCR meter to set the constant side voltage to IV and measure the capacitance at various points in the temperature range of -25 to 85 ° C. It was examined whether the capacitance at C was within ⁇ 10. The case where these conditions are passed is marked with ⁇ , and the case where they are not passed is marked with X.
- the capacitance when a 6V DC voltage is superimposed and applied with lVrms and 1.0kHz AC voltage is measured, and the capacitance when lVrms and 1.0kHz AC voltage is applied. was determined as the rate of decrease.
- the DC-Bias characteristic is an indicator of the deterioration of the insulation resistance over time.
- IR accelerated lifetime in 200 ° C, by applying a DC voltage of 60V (30V / / im), measures the time until the insulation resistance is below 10 5 Omega, the measurement time IR life time. IR accelerated life is an indicator of reliability.
- the dielectric porcelain composition of the present invention having a predetermined composition containing a glass forming material composed of ⁇ , GeO or the like is suitable for using Ni or the like for an electrode without lowering the performance as a dielectric, and has a firing temperature of 1150. It is a dense sintered body at 1350 ° C.
- the dielectric constant exceeds 3000, the CR product is 2000 or more, and the breakdown voltage is 80 VZ At xm or more, the temperature dependence of capacitance is small, and the fast life of IR cascade is 1.5 hours or more, which is excellent in reliability. While deviating from the composition range in the present invention, for example, in the capacitor of Comparative Example 1 in which the content of MnO is too low, the CR product is low and the insulation resistance is insufficient.
- the capacitor of Comparative Example 3 with too low Cr 2 O and the capacitor of Comparative Example 5 with too low a total content of Y O and Ho 2 O have a problem in capacitance temperature dependency.
- the capacitor of Comparative Example 8 containing too much BaO and SiO has a short IR accelerated life and low reliability.
- proper sintering could not be performed at 1350 ° C. or lower, so that proper performance adjustment could not be performed.
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Abstract
Description
Claims
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2005513168A JPWO2005016845A1 (ja) | 2003-08-14 | 2004-08-11 | 誘電体磁器組成物、積層型セラミックコンデンサ、および電子部品 |
| US10/568,157 US7351676B2 (en) | 2003-08-14 | 2004-08-11 | Dielectric porcelain composition, multilayer ceramic capacitor, and electronic component |
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| JP2003293474 | 2003-08-14 | ||
| JP2003-293474 | 2003-08-14 |
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| WO2005016845A1 true WO2005016845A1 (ja) | 2005-02-24 |
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| PCT/JP2004/011550 Ceased WO2005016845A1 (ja) | 2003-08-14 | 2004-08-11 | 誘電体磁器組成物、積層型セラミックコンデンサ、および電子部品 |
Country Status (4)
| Country | Link |
|---|---|
| US (1) | US7351676B2 (ja) |
| JP (1) | JPWO2005016845A1 (ja) |
| CN (1) | CN100509696C (ja) |
| WO (1) | WO2005016845A1 (ja) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2011071144A1 (ja) * | 2009-12-11 | 2011-06-16 | 株式会社村田製作所 | 積層型セラミック電子部品 |
| JP2014177392A (ja) * | 2013-03-14 | 2014-09-25 | Samsung Electro-Mechanics Co Ltd | 誘電体磁器組成物及びこれを含む積層セラミックキャパシタ |
| JP2016216270A (ja) * | 2015-05-14 | 2016-12-22 | サムソン エレクトロ−メカニックス カンパニーリミテッド. | 誘電体磁器組成物およびその製造方法、ならびにセラミック電子部品 |
| JP2023098052A (ja) * | 2021-12-28 | 2023-07-10 | 太陽誘電株式会社 | 積層セラミックコンデンサ |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP4299827B2 (ja) * | 2005-12-05 | 2009-07-22 | Tdk株式会社 | 誘電体磁器組成物、電子部品および積層セラミックコンデンサ |
| JP5132972B2 (ja) * | 2007-04-09 | 2013-01-30 | 太陽誘電株式会社 | 誘電体セラミックス及びその製造方法並びに積層セラミックコンデンサ |
| KR101575667B1 (ko) * | 2008-05-23 | 2015-12-08 | 코쿠리츠켄큐카이하츠호징 붓시쯔 자이료 켄큐키코 | 유전체 막과 유전체 소자 및 그 제조 방법 |
| CN115301907B (zh) * | 2022-08-16 | 2024-11-26 | 中南大学 | 一种新型冷镦钢保护渣 |
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| JP2000103668A (ja) * | 1998-09-28 | 2000-04-11 | Murata Mfg Co Ltd | 誘電体セラミック組成物および積層セラミックコンデンサ |
| JP2002020166A (ja) * | 2000-06-30 | 2002-01-23 | Taiyo Yuden Co Ltd | 誘電体磁器組成物及び磁器コンデンサ |
| JP2002201065A (ja) * | 2000-10-24 | 2002-07-16 | Murata Mfg Co Ltd | 誘電体セラミックおよびその製造方法ならびに積層セラミックコンデンサ |
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| JPS5567567A (en) | 1978-11-10 | 1980-05-21 | Murata Manufacturing Co | Nonreducible dielectric porcelain composition and preparing ceramic laminated capacitor using same |
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| JPH07118431B2 (ja) | 1991-03-16 | 1995-12-18 | 太陽誘電株式会社 | 磁器コンデンサ及びその製造方法 |
| US5335139A (en) | 1992-07-13 | 1994-08-02 | Tdk Corporation | Multilayer ceramic chip capacitor |
| JP2784982B2 (ja) | 1993-06-01 | 1998-08-13 | ティーディーケイ株式会社 | 積層型セラミックチップコンデンサ |
| US5600533A (en) * | 1994-06-23 | 1997-02-04 | Murata Manufacturing Co., Ltd. | Multilayer ceramic capacitor having an anti-reducing agent |
| CN1092391C (zh) | 1994-10-19 | 2002-10-09 | Tdk株式会社 | 多层瓷介片状电容器 |
| JP3326513B2 (ja) | 1994-10-19 | 2002-09-24 | ティーディーケイ株式会社 | 積層型セラミックチップコンデンサ |
| JP3024536B2 (ja) | 1995-12-20 | 2000-03-21 | 株式会社村田製作所 | 積層セラミックコンデンサ |
| JP2993425B2 (ja) | 1995-12-20 | 1999-12-20 | 株式会社村田製作所 | 積層セラミックコンデンサ |
| JP3812268B2 (ja) * | 1999-05-20 | 2006-08-23 | 株式会社村田製作所 | 積層型半導体セラミック素子 |
| CN1156318C (zh) * | 2002-01-10 | 2004-07-07 | 武汉康宏高新技术工程有限公司 | 一种茶保健枕 |
| US7158364B2 (en) * | 2005-03-01 | 2007-01-02 | Tdk Corporation | Multilayer ceramic capacitor and method of producing the same |
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2004
- 2004-08-11 WO PCT/JP2004/011550 patent/WO2005016845A1/ja not_active Ceased
- 2004-08-11 JP JP2005513168A patent/JPWO2005016845A1/ja active Pending
- 2004-08-11 US US10/568,157 patent/US7351676B2/en not_active Expired - Fee Related
- 2004-08-11 CN CN200480023354.2A patent/CN100509696C/zh not_active Expired - Fee Related
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| JP2000103668A (ja) * | 1998-09-28 | 2000-04-11 | Murata Mfg Co Ltd | 誘電体セラミック組成物および積層セラミックコンデンサ |
| JP2002020166A (ja) * | 2000-06-30 | 2002-01-23 | Taiyo Yuden Co Ltd | 誘電体磁器組成物及び磁器コンデンサ |
| JP2002201065A (ja) * | 2000-10-24 | 2002-07-16 | Murata Mfg Co Ltd | 誘電体セラミックおよびその製造方法ならびに積層セラミックコンデンサ |
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2011071144A1 (ja) * | 2009-12-11 | 2011-06-16 | 株式会社村田製作所 | 積層型セラミック電子部品 |
| CN102640239A (zh) * | 2009-12-11 | 2012-08-15 | 株式会社村田制作所 | 层叠型陶瓷电子部件 |
| US8773840B2 (en) | 2009-12-11 | 2014-07-08 | Murata Manufacturing Co., Ltd. | Monolithic ceramic electronic component |
| CN102640239B (zh) * | 2009-12-11 | 2015-06-17 | 株式会社村田制作所 | 层叠型陶瓷电子部件 |
| JP2014177392A (ja) * | 2013-03-14 | 2014-09-25 | Samsung Electro-Mechanics Co Ltd | 誘電体磁器組成物及びこれを含む積層セラミックキャパシタ |
| US9190209B2 (en) | 2013-03-14 | 2015-11-17 | Samsung Electro-Mechanics Co., Ltd. | Dielectric ceramic composition and multilayer ceramic capacitor including the same |
| JP2016216270A (ja) * | 2015-05-14 | 2016-12-22 | サムソン エレクトロ−メカニックス カンパニーリミテッド. | 誘電体磁器組成物およびその製造方法、ならびにセラミック電子部品 |
| JP2023098052A (ja) * | 2021-12-28 | 2023-07-10 | 太陽誘電株式会社 | 積層セラミックコンデンサ |
| JP7835555B2 (ja) | 2021-12-28 | 2026-03-25 | 太陽誘電株式会社 | 積層セラミックコンデンサ及び積層セラミックコンデンサの製造方法 |
Also Published As
| Publication number | Publication date |
|---|---|
| JPWO2005016845A1 (ja) | 2007-10-04 |
| US20060240973A1 (en) | 2006-10-26 |
| CN100509696C (zh) | 2009-07-08 |
| CN1835898A (zh) | 2006-09-20 |
| US7351676B2 (en) | 2008-04-01 |
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