Entries |
Document | Title | Date |
20080253060 | Laminated Ceramic Capacitor - To provide a multilayer ceramic capacitor which has capacitance-temperature characteristics satisfying the X8R characteristic specified by the EIA standard and has capacitance with an excellent long-term stability. | 10-16-2008 |
20080266751 | MULTILAYER CERAMIC CAPACITOR - A multilayer ceramic capacitor includes a plurality of ceramic dielectric layers, a plurality of inner electrode layers and and external electrodes. The ceramic dielectric layers includes barium titanate crystal grains having pores inside. The inner electrode layers are between the ceramic dielectric layers. The external electrodes are electrically connected to the inner electrode layers. The barium titanate crystal grains each have a core-shell structure which include a core and a shell around the core. The the pores are mainly formed in the cores. | 10-30-2008 |
20080297978 | METHOD FOR ADJUSTING CAPACITANCE VALUE OF BUILT-IN CAPACITOR IN MULTILAYER CERAMIC SUBSTRATE, AND MULTILAYER CERAMIC SUBSTRATE AND METHOD FOR MANUFACTURING THE SAME - In a multilayer ceramic substrate having a built-in capacitor provided in a ceramic laminate including a plurality of ceramic layers laminated to each other, the built-in capacitor being formed of a first capacitor electrode, a second capacitor electrode, and one of the dielectric glass ceramic layers, the capacitance value of the built-in capacitor is adjusted by performing laser trimming of the first capacitor electrode. The one dielectric glass ceramic layer is made of a TiO | 12-04-2008 |
20090015986 | MULTILAYER CAPACITOR - A multilayer capacitor has a capacitor element body in which a plurality of insulator layers are laminated, first and second terminal electrodes, a first internal electrode group, and a second internal electrode group. The first and second terminal electrodes are disposed on an external surface extending in a direction parallel to a laminating direction of the insulator layers, among external surfaces of the capacitor element body. The first internal electrode group has a first internal electrode connected to the first terminal electrode, and a second internal electrode connected to the second terminal electrode. The second internal electrode group has a third internal electrode connected to the first terminal electrode, a fourth internal electrode connected to the second terminal electrode, and at least one intermediate internal electrode not connected to the first and second terminal electrodes. The first and second internal electrodes are arranged with the insulator layer in between so as to form a capacitance component between the first and second internal electrodes. The third and fourth internal electrodes and the intermediate internal electrode are arranged with the insulator layer in between so as to form two or more capacitance components between the third and fourth internal electrodes. | 01-15-2009 |
20090034157 | CERAMIC LAMINATED DEVICE AND METHOD FOR MANUFACTURING SAME - The present invention relates to a ceramic laminated device including a dielectric ceramic and an Ag electrode. In a dielectric ceramic that can be sintered at low temperatures and has a high dielectric constant and Q value, reactivity between the ceramic and Ag during sintering is suppressed low and segregation of specific elements in the proximity of the electrode is controlled. Thus, a filter having a high Q value and low loss is produced stably. For this purpose, in a ceramic laminated body including at least a ceramic and a Si-containing glass, a ratio of A/B, i.e. a ratio of a Si element concentration (A) within a range at a distance of 5 μm or smaller from the Ag electrode to a Si element concentration (B) within a range at a distance larger than 5 μm from the Ag electrode, is set equal to or smaller than 2. | 02-05-2009 |
20090046410 | DIELECTRIC CERAMICS AND MULTI-LAYER CERAMIC CAPACITOR USING SAME - Dielectric ceramics represented as: Ca | 02-19-2009 |
20090046411 | C0G Multi-Layered Ceramic Capacitor - A dielectric ceramic composition in a multilayer ceramic capacitor with a composition of formula: | 02-19-2009 |
20090059471 | Multilayer Ceramic Capacitor and Production Method of the Same - The invention provides a multilayer ceramic capacitor comprising a capacitor body composed by alternately layering dielectric layers and inner electrode layers, and each of the above mentioned dielectric layers contains a plurality of crystal particles, and grain boundary phases comprising interfacial grain boundaries and triple point grain boundaries formed among a plurality of the crystal particles adjacent to one another, and Si—Ba—O compound being formed in 5% or more of the triple point grain boundaries in the entire triple point grain boundaries per unit surface area of the dielectric layer. Accordingly, the multilayer ceramic capacitor has high relative permittivity and is high the temperature property and highly accelerated life test property. | 03-05-2009 |
20090073635 | MULTI-LAYER CERAMIC CAPACITOR AND MANUFACTURING METHOD OF MULTI-LAYER CERAMIC CAPACITOR - A small, large-capacitance multi-layer ceramic capacitor suppressed for remarkable lowering of permittivity, having a capacitor main body formed of ceramic dielectric layers comprising barium titanate as a main component and an Si oxide at a ratio of 0.5 to 10 mol being converted as SiO | 03-19-2009 |
20090103238 | METHOD FOR MANUFACTURING DIELECTRIC CERAMIC POWDER, AND MULTILAYER CERAMIC CAPACITOR OBTAINED BY USING THE CERAMIC POWDER - The invention relates to a method for manufacturing dielectric ceramic powder and a multilayer ceramic capacitor using the ceramic powder. According to the invention, BaCO | 04-23-2009 |
20090128988 | DIELECTRIC CERAMIC COMPOSITION FOR LOW-TEMPERATURE SINTERING AND HOT INSULATION RESISTANCE AND MULTILAYER CERAMIC CAPACITOR USING THE SAME - A dielectric ceramic composition for low-temperature sintering and hot insulation resistance (hot IR) is capable of carrying out low-temperature sintering, improving a hot IR characteristic, and meeting X5R characteristics, and a multilayer ceramic capacitor makes use of the dielectric ceramic composition. The dielectric ceramic composition includes a main component BaTiO | 05-21-2009 |
20090128989 | Dielectric ceramic, ceramic electronic element, and multilayer ceramic capacitor - A dielectric ceramic including a perovskite compound represented by the general formula {(Ba | 05-21-2009 |
20090128990 | DIELECTRIC CERAMIC, METHOD OF PRODUCING THE SAME, AND MONOLITHIC CERAMIC CAPACITOR - A dielectric ceramic contains a barium titanate compound oxide as a main component; at least one rare earth element R selected from Y, La, Ce, Pr, Nd, Sm, Eu, Gd, Tb, Dy, Ho, Er, Tm, Yb, and Lu; Mg; and Ni, such that a crystalline compound oxide containing the rare earth element R, Ni, and Ti as main components is present. Dielectric ceramic layers are made of the dielectric ceramic. Accordingly, even when a higher electric field is continuously applied under a high-temperature atmosphere for a long time, high reliability can be ensured. | 05-21-2009 |
20090141427 | DIELECTRIC COMPOSITION AND MULTILAYER CERAMIC CAPACITOR EMBEDDED LOW TEMPERATURE CO-FIRED CERAMIC SUBSTRATE USING THE SAME - Provided are a dielectric composition and a multi-layer ceramic capacitor embedded low temperature co-fired ceramic substrate using the same. The dielectric composition includes a main component, BaTiO | 06-04-2009 |
20090161293 | MULTILAYER CERAMIC ELECTRONIC COMPONENT AND MANUFACTURING METHOD THEREOF - A multilayer ceramic electronic component including thin external terminal electrodes each having a superior bonding force to a ceramic base body is provided. In order to form the external terminal electrodes, after Cu plating films are deposited on exposed portions of internal electrodes by direct plating on a ceramic base body, a Cu liquid phase, an O | 06-25-2009 |
20090190285 | MULTILAYER CERAMIC CAPACITOR - Provided is a multilayer ceramic capacitor including external electrodes which also functions as a resistive element, and the external electrodes achieve strong bonding with internal electrodes containing Ni or a Ni alloy. The external electrodes include a resistive electrode layers contacting a ceramic laminate and internal electrodes. The resistive electrode layers contains a complex oxide which reacts with Ni or a Ni alloy contained in the internal electrodes in a proportion of 26 to 79% by weight, a glass component in a proportion of 20 to 56% by weight, and metal which reacts with Ni or a Ni alloy in a proportion of 1 to 18% by weight. | 07-30-2009 |
20090201628 | MULTILAYER CERAMIC CAPACITOR AND METHOD OF MANUFACTURING THE SAME - In a multilayer ceramic capacitor including: a laminated body layer formed by alternately laminating dielectric layers made of ceramic particles and internal electrodes; and a pair of external electrodes provided on at least both end surfaces of the laminated body layer and alternately connected to the internal electrodes electrically, the number of boundaries between ceramic particles per unit length of the dielectric layer in the lamination direction is larger than that in the direction connecting the pair of external electrodes. Thus increasing the number of ceramic grain boundaries between internal electrodes improves the insulation characteristic. Particularly, even if the number of ceramic particles thicknesswise decreases due to lamellation, increasing the number of grain boundaries suppresses deterioration of the insulation characteristic. | 08-13-2009 |
20090213527 | X8R Dielectric Composition For Use With Nickel Electrodes - Multilayer ceramic chip capacitors which satisfy X8R requirements and which are compatible with reducing atmosphere sintering conditions so that non-noble metals such as nickel and nickel alloys thereof may be used for internal and external electrodes are made in accordance with the invention. The capacitors exhibit desirable dielectric properties (high capacitance, low dissipation factor, high insulation resistance), excellent performance on highly accelerated life testing, and very good resistance to dielectric breakdown. The dielectric layers comprise a barium titanate base material doped with other metal oxides such as BaO, Y | 08-27-2009 |
20090284899 | DIELECTRIC CERAMICS AND CAPACITOR - A dielectric ceramic and a capacitor comprising the dielectric ceramic are disclosed. The dielectric ceramic has a high dielectric constant that is stable over temperature, and has a small spontaneous polarization. The capacitor can reduce audible noise caused by an electrically induced strain in a power supply circuit. | 11-19-2009 |
20090290285 | DIELECTRIC CERAMIC COMPOSITION AND MONOLITHIC CERAMIC CAPACITOR - A dielectric ceramic composition that is used for a monolithic ceramic capacitor, can be cofired with internal electrodes mainly composed of Ni at a temperature of 1200° C. or less, and has a high resistivity is provided. The dielectric ceramic composition is mainly composed of a tungsten bronze type complex oxide having a composition formula of (K | 11-26-2009 |
20090310279 | DIELECTRIC CERAMIC AND MONOLITHIC CERAMIC CAPACITOR - A dielectric ceramic represented by a general formula: 100Ba | 12-17-2009 |
20100002360 | DIELECTRIC CERAMICS AND CAPACITOR - A dielectric ceramic and a capacitor comprising the dielectric ceramic are disclosed. The dielectric ceramic has a high dielectric constant that is stable over temperature, and has a small spontaneous polarization. The capacitor can reduce audible noise caused by an electrically induced strain in a power supply circuit. | 01-07-2010 |
20100008019 | Sintered Dielectric Ceramic, Composition for Making, and Use Thereof In Multilayer Capacitor And Energy Storage Device - A batch powder composition for preparing a non-ferroelectric, sintered dielectric ceramic; a multilayer ceramic capacitor thereof; and an energy storage device. The batch powder contains a titanate powder of at least one of CaTiO | 01-14-2010 |
20100014213 | Electrical component - An electrical component includes a ceramic base body. The ceramic base body includes several ceramic layers including a function layer and a composite layer bordering the function layer. The composite layer can include a zirconium oxide-glass filler mixture. | 01-21-2010 |
20100014214 | DIELECTRIC CERAMICS AND MULTILAYER CERAMIC CAPACITOR - A dielectric ceramics comprising a high dielectric constant is disclosed. The dielectric ceramics also comprises a relative dielectric constant with a stable temperature dependence and an insulation resistance with a reduced voltage dependence. The dielectric ceramics can be used to form a multilayer ceramic capacitor that has a long life. | 01-21-2010 |
20100033895 | MONOLITHIC CERAMIC CAPACITOR - A monolithic ceramic capacitor includes dielectric ceramic layers having a thickness of less than 1 μm. When this thickness is t and the crystal grains of a dielectric ceramic of the layers have a mean diameter of r, a mean number N of grain boundaries satisfies 002-11-2010 | |
20100046140 | DIELECTRIC CERAMIC AND CAPACITOR - Disclosed is a dielectric ceramic comprising crystal grains mainly composed of barium titanate. This dielectric ceramic contains 0.01-0.06 mole of magnesium in terms of MgO, 0.0007-0.03 mole of yttrium in terms of Y | 02-25-2010 |
20100053843 | DIELECTRIC CERAMIC, METHOD FOR PRODUCING DIELECTRIC CERAMIC, AND MONOLITHIC CERAMIC CAPACITOR - A dielectric ceramic contains a barium titanate and Li. In the dielectric ceramic, the following inequalities are satisfied: 0.5≦e≦6.0, 0.0603-04-2010 | |
20100067171 | MULTILAYERED CERAMIC CAPACITOR - [Problems] To provide a multilayered ceramic capacitor which in a high-temperature loading test, can be inhibited from decreasing in insulation resistance with time and which can have high insulating properties even when produced without via a reoxidation step. | 03-18-2010 |
20100110608 | Core-shell structured dielectric particles for use in multilayer ceramic capacitors - This invention provides a method to make core-shell structured dielectric particles which consist of a conductive core and at least one layer of insulating dielectric shell for the application of multilayer ceramic capacitors (MLCC). The use of said core-shell instead of conventionally solid dielectric particles as the capacitor's active layers simplifies the MLCC manufacturing processes and effectively improves the MLCC properties. In particular, the use of core-shell particles with a thin shell of high permittivity dielectric material improves the capacitance volumetric efficiency, and the use of core-shell particles with a thick shell of dielectric will improve capacitor device's energy storage capacity as the results of improved electrical and mechanical strength. | 05-06-2010 |
20100149725 | CERAMIC MULTILAYER SUBSTRATE - It is provided a ceramic multilayer substrate obtained by co-sintering a low dielectric constant layer made of an insulating material of a low dielectric constant and a high dielectric constant layer of a dielectric material of a high dielectric constant. The low dielectric constant layer includes a ceramic component of xBaO-yTiO | 06-17-2010 |
20100157509 | High Temperature Boron Oxynitride Capacitor - A method for storing energy in a capacitor includes connecting a first conductor to a first electrode and a second conductor to a second electrode. The second electrode is separated from the first electrode by a dielectric layer. The dielectric layer includes a layer of boron oxynitride, BON. The conductivity of the dielectric layer is lower than the conductivity of the first electrode or the second electrode. A voltage of at least 5 volts is applied between the first electrode and the second electrode by means of the first and second conductors. | 06-24-2010 |
20100195265 | DIELECTRIC CERAMIC AND LAMINATED CERAMIC CAPACITOR - A dielectric ceramic which improves the lifetime characteristics and dielectric breakdown voltage of a laminated ceramic capacitor includes core-shell crystalline grains which have a core-shell structure and homogeneous crystalline grains which have a homogeneous structure. In this dielectric ceramic, the core-shell crystalline grains and the homogeneous crystalline grains are present at an area ratio in the range of 91:9 to 99:1. Preferably, when the mean grain size for the core-shell crystalline grains is represented by R1 and the mean grain size for the homogeneous crystalline grains is represented by R2, the ratio of R2/R1 is 0.8 or more and 3 or less. | 08-05-2010 |
20100195266 | DIELECTRIC CERAMIC AND LAMINATED CERAMIC CAPACITOR - A dielectric ceramic with stable insulation properties even after calcination under a reducing atmosphere, as is preferred for a laminated ceramic capacitor, is a CaTiO | 08-05-2010 |
20100220427 | Lead And Cadmium Free, Low Temperature Fired X7R Dielectric Ceramic Composition And Method Of Making - Multilayer ceramic chip capacitors (MLCC's) which satisfy X7R TCC requirements and which are compatible with silver-palladium internal electrodes. The MLCC's exhibit desirable dielectric properties—high capacitance, low dissipation factor, high insulation resistance, stable TCC—and excellent performance on highly accelerated life testing, and good resistance to dielectric breakdown. The dielectric layers comprise a lead-free and cadmium-free barium titanate base material doped with other metal oxides such oxides of zinc, boron, bismuth, barium, titanium, praseodymium, cerium, tungsten, neodymium, tungsten, tin, niobium, copper, and/or manganese in various combinations. The dielectric ceramic materials herein can be fired at less than 1150° C. with an inner electrode having 70 wt % or more Ag and 30 wt % or less Pd to form an MLCC. | 09-02-2010 |
20100284126 | DIELECTRIC CERAMIC AND MULTILAYER CERAMIC CAPACITOR - In a dielectric ceramic having crystal grains and containing a perovskite in which the A site contains Ba and the B site contains Ti. as a main component, the crystal orientations are aligned in substantially the same direction within the crystal grains. Some of Ba may be replaced with Ca and/or Sr, and some of Ti may be replaced with Zr and/pr Hf. This achieves a dielectric ceramic which has a high dielectric constant and has favorable AC electric field characteristics in which the change in dielectric constant is small even with changes in applied electric field. | 11-11-2010 |
20110002083 | CERAMIC MATERIAL AND ELECTRONIC DEVICE - A ceramic material has a perovskite structure and is represented by formula of (1−x)ABO | 01-06-2011 |
20110019336 | DIELECTRIC CERAMIC AND LAMINATED CERAMIC CAPACITOR - A dielectric ceramic which is capable of achieving a laminated ceramic capacitor with high reliability, in particular, favorable lifetime characteristics in a load test, even when a dielectric ceramic layer is reduced in thickness contains one of (Ba, R)(Ti, Mn)O | 01-27-2011 |
20110038096 | DIELECTRIC CERAMIC AND METHOD FOR PRODUCING DIELECTRIC CERAMIC AND LAMINATED CERAMIC CAPACITOR - A highly moisture resistant dielectric ceramic is prepared by providing a compact containing a dielectric ceramic component powder and a second powder including a compound containing an alkali metal element, and firing the compact and a second composition containing an alkali metal element at the same time. A laminated ceramic capacitor using the dielectric ceramic is described. | 02-17-2011 |
20110038097 | LAMINATED CERAMIC CAPACITOR - Better high-temperature load characteristics are obtained in a laminated ceramic capacitor including a dielectric ceramic layer with a thickness of 1 μm or less. The laminated ceramic capacitor includes a plurality of stacked dielectric ceramic layers, a plurality of internal electrode layers, each disposed between dielectric ceramic layers, and external electrodes that are electrically connected to internal electrode layers. In this laminated ceramic capacitor, when the thickness of each dielectric ceramic layer is denoted by tc and the thickness of each internal electrode layer is denoted by te, tc is 1 μm or less, and tc/te is equal to or less than 1. | 02-17-2011 |
20110043963 | EXTERNALLY FUSED AND RESISTIVELY LOADED SAFETY CAPACITOR - A capacitor with a combined with a resistor and/or fuse is described. This safe capacitor can rapidly discharge through the resistor when shorted. The presence of a fuse in series with the capacitor and results in a resistive failure when this opens during and overcurrent condition. Furthermore, the presence of a resistor in parallel to the capacitor allows the energy to be rapidly dissipated when a failure occurs. | 02-24-2011 |
20110043964 | CERAMIC POWDER COMPOSITION, CERAMIC MATERIAL, AND MULTI-LAYER CERAMIC CAPACITOR FABRICATED THEREBY - A ceramic powder composition, ceramic material, and a multi-layer ceramic capacitor fabricated thereby are provided. The ceramic powder composition includes a main ingredient and an accessory ingredient. The main ingredient is in an amount of 95 to 99 mol %, and includes BaTiO | 02-24-2011 |
20110069424 | LAMINATED CERAMIC ELECTRONIC COMPONENT - It is harder to realize structural defects when the thickness of an internal electrode is reduced in a laminated ceramic electronic component, such as a laminated ceramic capacitor, when the internal electrodes contain a base metal as their conductive constituent, and the dielectric ceramic layers are formed from a dielectric barium titanate ceramic, and as an accessory constituent, at least one alkali metal element selected from Li, K, and Na, each of the internal electrodes has a thickness of 0.5 μm or less, and the content of the alkali metal element in the dielectric ceramic is 0.2 parts by mol or more with respect to 100 parts by mol of the main constituent. | 03-24-2011 |
20110085280 | DIELECTRIC CERAMIC AND LAMINATED CAPACITOR - A dielectric ceramic containing a BaTiO | 04-14-2011 |
20110085281 | DIELECTRIC CERAMIC AND CAPACITOR - Disclosed is a dielectric ceramic having crystal grains mainly composed of barium titanate and an intergranular phase formed among the crystal grains. The dielectric ceramic contains certain amounts of manganese and at least one rare earth element (RE) selected from magnesium, gadolinium, terbium, dysprosium, holmium and erbium, in terms of oxides, per 1 mole of barium constituting the barium titanate. The dielectric ceramic also contains a certain amount of yttrium in terms of oxides, per 100 parts by mass of the barium titanate. The crystal grains have an average grain size of 0.05-0.2 μm. By using the dielectric ceramic as a dielectric layer, there can be obtained a capacitor having high capacity and stable capacitance temperature characteristics. | 04-14-2011 |
20110090619 | COG Dieletric Composition For Use With Nickel Electrodes - Multilayer ceramic chip capacitors which satisfy COG requirements and which are compatible with reducing atmosphere sintering conditions so that non-noble metals such as nickel and nickel alloys thereof may be used for internal and external electrodes are made in accordance with the invention. The capacitors exhibit desirable dielectric properties (high capacitance, low dissipation factor, high insulation resistance), excellent performance on highly accelerated life testing, and very good resistance to dielectric breakdown. The dielectric layers comprise a strontium zirconate matrix doped with other metal oxides such as TiO | 04-21-2011 |
20110122541 | DIELECTRIC CERAMIC AND LAMINATED CERAMIC CAPACITOR - A laminated ceramic capacitor which has a dielectric ceramic with a high dielectric constant and has excellent reliability against changes in temperature and mechanical shocks, even when dielectric ceramic layers are reduced in thickness employs a dielectric ceramic containing (Ba | 05-26-2011 |
20110141660 | MULTILAYER CERAMIC CAPACITOR - Disclosed is a multilayer ceramic capacitor. The multilayer ceramic capacitor includes a capacitive part including a plurality of dielectric layers and first and second internal electrodes that are laminated in an alternating manner, wherein one set of ends of the first internal electrodes and the other set of ends of the second internal electrodes are exposed in a lamination direction in which the dielectric layers are laminated, a protective layer formed on at least one of top and bottom surfaces of the capacitive part, including a plurality of pores having an average pore size of 0.5 μm to 3 μm, and having a porosity of 2% to 10%, and first and second external electrodes electrically connected to the first and second internal electrodes exposed in the lamination direction of the dielectric layers. | 06-16-2011 |
20110157769 | DIELECTRIC CERAMIC COMPOSITION AND MULTILAYER CERAMIC CAPACITOR HAVING THE SAME - There is provided a dielectric ceramic composition including a base powder expressed by a composition formula of Ba | 06-30-2011 |
20110176253 | CERAMIC POWDER COMPOSITION, CERAMIC MATERIAL, AND MULTILAYER CERAMIC CAPACITOR FABRICATED THEREBY - A ceramic powder composition, a ceramic material and a multi-layer ceramic capacitor fabricated thereby are presented. The ceramic powder composition includes a main component and a glassy component. A content of the glassy component is 0.2 to 2.0 mole % based on the main component. The main component includes (Ba | 07-21-2011 |
20110205686 | DIELECTRIC CERAMIC AND LAMINATED CERAMIC CAPACITOR - A laminated ceramic capacitor which has a long high temperature load life, small variations in life, large capacitance, high electrical insulation property, and favorable capacitance temperature characteristics, even when high strength electric field is applied while reducing the thickness of dielectric ceramic layers uses a dielectric ceramic represented by the formula: 100(Ba | 08-25-2011 |
20110205687 | DIELECTRIC CERAMIC AND LAMINATED CERAMIC CAPACITOR - Provided is a dielectric ceramic which exhibits desired high temperature load resistance characteristics even under a high electric field strength on the order of 15 kV/mm. The dielectric ceramic contains, as its main constituent, a perovskite compound represented by the general formula (Ba | 08-25-2011 |
20110216471 | DIELECTRIC CERAMIC AND LAMINATED CERAMIC CAPACITOR - A laminated ceramic capacitor which provides favorable life characteristics, even when a high electric field strength is applied while dielectric ceramic layers are reduced in layer thickness to less than 1 μm, contains a dielectric ceramic a compound represented by: (Ba | 09-08-2011 |
20110216472 | LAMINATED CERAMIC CAPACITOR - A laminated ceramic capacitor which provides favorable properties and characteristics such as dielectric characteristics, insulation properties, temperature characteristics, and high temperature load characteristics and provides favorable thermal shock resistance, even when dielectric ceramic layers are reduced in layer thickness to increase the number of layers has dielectric ceramic layers containing, as their main constituent, a barium titanate based compound represented by the general formula ABO | 09-08-2011 |
20110235235 | DIELECTRIC CERAMIC AND LAMINATED CERAMIC CAPACITOR - A dielectric ceramic capacitor that has excellent reliability and particularly excellent life characteristics in a load test even when the thickness of a dielectric ceramic layer is reduced uses a dielectric ceramic as a dielectric ceramic layer in a laminated ceramic capacitor which is a substance containing, as the main component, (Ba, R)(Ti, V)O | 09-29-2011 |
20110235236 | DIELECTRIC CERAMIC COMPOSITION AND MONOLITHIC CERAMIC CAPACITOR - Provided are a dielectric ceramic composition suitable for use in a monolithic ceramic capacitor that is employed in high-temperature environments such cars, and a monolithic ceramic capacitor constituted by using the dielectric ceramic composition. The dielectric ceramic composition has a composition formula of 100(Ba | 09-29-2011 |
20120026642 | MULTILAYER CERAMIC ELECTRONIC COMPONENT - Disclosed is a multilayer ceramic electronic component, comprising an element body obtained by stacking dielectric layers (thickness t1) and electrode layers (thickness t2). The dielectric layer ( | 02-02-2012 |
20120033344 | DIELECTRIC CERAMIC AND LAMINATED CERAMIC CAPACITOR - A dielectric ceramic and a laminated ceramic capacitor using the dielectric ceramic are achieved which provide favorable thermal shock resistance without damaging properties or characteristics such as dielectric properties, insulation properties, temperature characteristics, and characteristics in high temperature loading, even when the dielectric layers are reduced in thickness and the number of stacked layers increased. The dielectric ceramic contains, as its main constituent, a barium titanate based compound represented by the general formula ABO | 02-09-2012 |
20120057272 | LAMINATED CERAMIC CAPACITOR - A laminated ceramic capacitor which has high moisture resistance includes a laminated body including a plurality of stacked ceramic layers and internal electrodes placed between the ceramic layers; and an external electrode formed on an outer surface of the laminated body and electrically connected to the internal electrodes, and the laminated ceramic capacitor has the feature that the ceramic layers contain CaZrO | 03-08-2012 |
20120075770 | DIELECTRIC CERAMIC AND LAMINATED CERAMIC CAPACITOR - A laminated ceramic capacitor suitable for intermediate to high voltage applications uses a dielectric ceramic represented by {100(BaTiO | 03-29-2012 |
20120081836 | DIELECTRIC CERAMIC AND LAMINATED CERAMIC CAPACITOR - A laminated ceramic capacitor which exhibits excellent lifetime characteristics in a high temperature loading test uses a dielectric ceramic constituting the dielectric layers which contains (Ba | 04-05-2012 |
20120127628 | CERAMIC COMPOSITION FOR MULTILAYER CERAMIC CAPACITOR, MULTILAYER CERAMIC CAPACITOR COMPRISING THE SAME AND METHOD OF MANUFACTURING MULTILAYER CERAMIC CAPACITOR - There are provided a ceramic composition for a multilayer ceramic capacitor, a multilayer ceramic capacitor comprising the same, and a method of manufacturing the multilayer ceramic capacitor. The ceramic composition includes a dielectric ceramic powder; an organic binder; and an antistatic agent represented by a specific Chemical Formula. A ceramic green sheet comprising the ceramic composition according to an exemplary embodiment of the present invention only generates a small amount of static electricity and shows excellent mechanical physical properties even in the case that the thickness thereof is thin. | 05-24-2012 |
20120147523 | METHOD OF MANUFACTURING PEROVSKITE POWDER, PEROVSKITE POWDER MANUFACTURED BY THE SAME AND MULTILAYER CERAMIC ELECTRONIC COMPONENT - There are provided a method of manufacturing perovskite powder, and perovskite powder and a multilayer ceramic electronic component manufactured thereof. The manufacturing method includes: washing metal oxide hydrate to remove impurities therefrom; adding pure water and an acid or a base to the metal oxide hydrate to prepare a metal oxide sol; mixing the metal oxide sol with a metal salt to form perovskite particle nuclei; and conducting grain growth of the perovskite particle nuclei by hydrothermal treatment to produce perovskite powder. The method of manufacturing perovskite powder and the perovskite powder manufactured by the same have advantages such as excellent crystallinity, reduced generation of fine powder, and favorable dispersion properties. | 06-14-2012 |
20120147524 | DIELECTRIC CERAMIC COMPOSITION AND LAMINATED CERAMIC CAPACITOR - A dielectric ceramic composition contains a barium titanate based composite oxide as its main constituent, and contains a first accessory constituent including at least Al and a second accessory constituent including one or more elements selected from among Fe, Co, Ni, Cu, and Zn, wherein the content of the Al is 0.02 to 6 parts by mol with respect to 100 parts by mol of the main constituent, and the content ratio of the second accessory constituent to the Al is 0.01 to 0.4 in terms of mols. Dielectric layers are formed from a sintered body of the dielectric ceramic composition. The addition of various types of accessory elements such as rare-earth elements is possible, if necessary. This invention achieves a dielectric ceramic composition which is capable of ensuring favorable DC bias characteristics while ensuring high reliability, and a laminated ceramic capacitor using the dielectric ceramic composition. | 06-14-2012 |
20120162858 | LAMINATED TYPE CERAMIC ELECTRONIC PARTS - A multilayer ceramic electronic component comprising an element body in which a dielectric layer and an internal electrode layer are stacked. The dielectric layer is constituted from a dielectric ceramic composition including; a compound having a perovskite structure expressed by a formula of ABO | 06-28-2012 |
20120224298 | MULTILAYER CERAMIC CAPACITOR - There is provided a multilayer ceramic capacitor including: a ceramic main body having first and second side faces opposed to each other and third and fourth side faces connecting the first and second side faces; a plurality of inner electrodes formed within the ceramic main body and having respective one ends thereof exposed to the third and fourth side faces; external electrodes formed on the third and fourth side faces and electrically connected to the inner electrodes; and dielectric layers alternately stacked with the inner electrodes and made of ceramic powder, wherein a grain size of the ceramic powder is 130 μm or smaller. Acoustic noise generated from the multilayer ceramic capacitor can be reduced by adjusting the grain size of the ceramic powder, a chip permittivity, and the thickness of the dielectric layer, and thus, noise of an electronic product employing the multilayer ceramic capacitor can be reduced. | 09-06-2012 |
20120229953 | LEAD-FREE PIEZOELECTRIC PORCELAIN COMPOSITION, PIEZOELECTRIC CERAMIC COMPONENT FORMED USING THE COMPOSITION, AND PROCESS FOR PRODUCING PIEZOELECTRIC CERAMIC COMPONENT - Provided is an alkali-niobate-based piezoelectric porcelain composition which has a crystal-structure transition point in the range of operation guarantee temperatures and which, despite this, is inhibited from abruptly changing in capacitance. The piezoelectric porcelain composition comprises Li, Na, K, Nb, Ta, Sb, and O as major constituent elements and has an alkali-niobate-based perovskite structure. When the composition has an ABO | 09-13-2012 |
20120327558 | CONDUCTIVE PASTE COMPOSITION FOR INTERNAL ELECTRODE AND MULTILAYER CERAMIC CAPACITOR INCLUDING THE SAME - A conductive paste composition for an internal electrode, and a multilayer ceramic capacitor (MLCC) including the same are provided. The conductive paste composition for an internal electrode includes: 100 parts by weight of metal powder particles; and 0.1 to 10 parts by weight of carbon nano-tubes (CNTs). The conductive paste composition for an internal electrode may control sintering shrinkage of metal powder particles. | 12-27-2012 |
20130003257 | CONDUCTIVE PASTE FOR INTERNAL ELECTRODE OF MULTILAYER CERAMIC ELECTRONIC COMPONENT AND MULTILAYER CERAMIC ELECTRONIC COMPONENT INCLUDING THE SAME - A conductive paste for an internal electrode of a multilayer ceramic electronic component capable of restraining a generation of cracks by reducing internal stress, and a multilayer ceramic electronic component fabricated by using the same are provided. The conductive paste for an internal electrode of a multilayer ceramic electronic component includes: 100 parts by weight of a conductive metal powder; and 0.6 to 2.4 parts by weight of an organic binder. The use of the conductive paste can reduce internal stress of a multilayer ceramic electronic component, thus restraining a generation of cracks therein in the multilayer ceramic electronic component. | 01-03-2013 |
20130050900 | NANOSTRUCTURED DIELECTRIC MATERIALS FOR HIGH ENERGY DENSITY MULTI LAYER CERAMIC CAPACITORS - A high energy density multilayer ceramic capacitor, having at least two electrode layers and at least one substantially dense polycrystalline dielectric layer positioned therebetween. The at polycrystalline dielectric layer has an average grain size of less than about 300 nanometers, a particle size distribution of between about 150 nanometers and about 3 micrometers, and a maximum porosity of about 1 percent. The dielectric layer is selected from the group including TiO | 02-28-2013 |
20130058007 | METHOD FOR FORMING A CAPACITOR DIELECTRIC AND METHOD FOR MANUFACTURING A CAPACITOR USING THE CAPACITOR DIELECTRIC - A method for forming a capacitor dielectric includes depositing a zirconium oxide layer, performing a post-treatment on the zirconium oxide layer such that the zirconium oxide layer has a tetragonal phase, and depositing a tantalum oxide layer over the zirconium oxide layer such that the tantalum oxide layer has a tetragonal phase. | 03-07-2013 |
20130083449 | DIELECTRIC COMPOSITION AND CERAMIC ELECTRONIC COMPONENT INCLUDING THE SAME - There is provided a dielectric composition including: a base powder including BaTiO | 04-04-2013 |
20130083450 | DIELECTRIC COMPOSITION AND CERAMIC ELECTRONIC COMPONENT INCLUDING THE SAME - There is provided a dielectric composition including: a base powder; a first accessory component including a content (x) of 0.1 to 1.0 at % of an oxide or a carbonate including transition metals, based on 100 moles of the base powder; a second accessory component including a content (y) of 0.01 to 5.0 at % of an oxide or a carbonate including a fixed valence acceptor element, based on 100 moles of the base powder; a third accessory component including an oxide or a carbonate including a donor element; and a fourth accessory component including a sintering aid. | 04-04-2013 |
20130141838 | DIELECTRIC CERAMIC, LAMINATED CERAMIC CAPACITOR, METHOD FOR PRODUCING THE DIELECTRIC CERAMIC, AND METHOD FOR MANUFACTURING THE MULTILAYER CERAMIC CAPACITOR - Provided is a laminated ceramic capacitor which produces excellent lifetime characteristics in a high-temperature loading test even when dielectric layers are reduced in thickness. The dielectric ceramic contains, as its main constituent, a compound represented by the general formula (Ba | 06-06-2013 |
20130208402 | Laminated Ceramic Capacitor and Manufacturing Method Therefor - A laminated ceramic capacitor that includes a laminated body including dielectric ceramic layers having crystal grains and crystal grain boundaries, and including internal electrode layers. An external electrode is formed on a surface of the laminated body, and is electrically connected to the internal electrode layers exposed at the surface of the laminated body. The laminated body has a composition including a calcium zirconate based perovskite-type compound as a main constituent, and further including Mn, Sr, and Si. When the laminated body is dissolved, the Si contained therein is 0.1 parts by mol or more and 10 parts by mol or less with respect to 100 parts by mol of Zr, and the molar ratio of Mn to Sr is 0.3 or more and 3.2 or less. | 08-15-2013 |
20130222974 | DIELECTRIC CERAMIC COMPOSITION AND ELECTRONIC DEVICE - Dielectric ceramic composition comprising a compound shown by a general formula {A | 08-29-2013 |
20130250482 | Dielectric Ceramic Material and Multilayer Ceramic Capacitor Using the Same - A dielectric ceramic material comprises a primary component of barium titanate (BaTiO | 09-26-2013 |
20130286541 | LAMINATED SEMICONDUCTOR CERAMIC CAPACITOR WITH VARISTOR FUNCTION AND METHOD FOR MANUFACTURING THE SAME - A laminated semiconductor ceramic capacitor with a varistor function includes a component body having a plurality of semiconductor ceramic layers formed of a SrTiO | 10-31-2013 |
20140002955 | LAMINATED CERAMIC CAPACITOR | 01-02-2014 |
20140016243 | MULTILAYER CERAMIC CAPACITOR, DIELECTRIC CERAMIC, MULTILAYER CERAMIC ELECTRONIC COMPONENT, AND METHOD FOR MANUFACTURING MULTILAYER CERAMIC CAPACITOR - Provided in a dielectric ceramic having flat capacitance characteristics and a high dielectric constant, and a multilayer ceramic electronic component (such as a multilayer ceramic capacitor) in which the dielectric ceramic is used. A multilayer ceramic capacitor includes a multilayer body having a plurality of dielectric ceramic layers and a plurality of internal electrodes, and external electrodes formed on the multilayer body. The composition of the multilayer body includes any of a bismuth layered compound containing Sr, Bi and Ti, a bismuth layered compound containing Sr, Bi and Nb, and a bismuth layered compound containing Ca, Bi and Ti as a primary ingredient, Bi and at least one of Cu, Ba, Zn and Li, and satisfies the conditions that if the Ti content is 400 molar parts or the Nb content is 200 molar parts, then (Bi content-Ti content) or (Bi content-Nb content) is equal to or greater than 1 molar part and less than 7.5 molar parts and the total content of Cu, Ba, Zn and Li is equal to or greater than 1 molar part and less than 10 molar parts. | 01-16-2014 |
20140043725 | MANUFACTURING METHOD FOR LAMINATED CERAMIC CAPACITOR, AND LAMINATED CERAMIC CAPACITOR - A method for manufacturing a laminated ceramic capacitor by firing a laminated body which includes dielectric ceramic layers containing a dielectric ceramic raw material powder and internal electrodes. The firing is carried out in accordance with a temperature profile in which the average rate of temperature rise is 40° C./second or more from room temperature to a maximum temperature. The dielectric ceramic raw material powder contains a BaTiO | 02-13-2014 |
20140049876 | LAMINATED CERAMIC CAPACITOR - Provided is a laminated ceramic capacitor that can suppress the decrease in insulation resistance after a moisture-resistance loading test. It contains ceramic layers which include: main-phase grains that have a perovskite-type compound containing Ba and Ti and optionally containing Ca, Sr, Zr, and Hf; and secondary-phase grains that have an average grain size of 100 nm or more and have a Si content of 50 mol % or more per grain, the average grain boundary number, represented by (Average Thickness for Ceramic Layers | 02-20-2014 |
20140049877 | DIELECTRIC CERAMIC, LAMINATED CERAMIC ELECTRONIC COMPONENT, LAMINATED CERAMIC CAPACITOR, AND METHOD FOR PRODUCING LAMINATED CERAMIC CAPACITOR - There are provided a dielectric ceramic having large specific resistance and even capacitance characteristic at 150° C., as well as a laminated ceramic electronic component employing such a dielectric ceramic. A ceramic layer includes crystal grains, the ceramic layer containing a perovskite type compound containing Ba, Ca, Ti, and Zr, containing Si, and optionally containing Mn. When the total content of Ti and Zr is 1 molar part, the content of Mn is 0.015 molar part or less, the content of Si is 0.005 molar part or more and less than 0.03 molar part, the molar ratio x of Ca/(Ba+Ca) satisfies 0.0502-20-2014 | |
20140177133 | MULTILAYER CERAMIC ELECTRONIC COMPONENT - There is provided a multilayer ceramic electronic component, including: a ceramic body including dielectric layer; and first and second internal electrodes formed inside the ceramic body and disposed to face each other with the dielectric layer interposed therebetween, wherein, on a cross section of the ceramic body taken in length-thickness (L-T) directions thereof, a secondary phase material is formed at interfaces between the first and second internal electrodes and the dielectric layers, and a ratio of an area occupied by the secondary phase material to an overall area of the ceramic body is 0.1% to 0.5%. | 06-26-2014 |
20140268492 | BARIUM CALCIUM TIN TITANATE POWDER, DIELECTRIC COMPOSITION AND MULTILAYER CERAMIC CAPACITOR - There is provided a dielectric composition containing barium calcium tin titanate powder composed of (Ba | 09-18-2014 |
20150036264 | MULTI-LAYER CERAMIC CAPACITOR - A multi-layer ceramic capacitor has a structure where its dielectric layers are constituted by a sintered compact that contains a mol of ReO | 02-05-2015 |
20160071646 | Thermally Stable High Performance Dielectrics - Multilayer ceramic capacitors based on Bi(Zn,Ti)O | 03-10-2016 |
20160137523 | METHOD FOR PRODUCING BARIUM TITANATE-BASED POWDER, AND MULTILAYER CERAMIC CAPACITOR - A method for producing a barium titanate-based powder that includes mixing a titanium compound and a barium compound together with water and chlorine to prepare a slurry, and temporarily firing the mixture of the titanium compound and the barium compound which is contained in the slurry to provide a barium titanate-based powder. The chlorine in the slurry is in the form of chlorine ions in a ratio of 230 to 1100 wt ppm based on the amount of the barium titanate-based powder to be synthesized. | 05-19-2016 |
20160254096 | GLASS CERAMIC MATERIAL AND MULTILAYER CERAMIC ELECTRONIC COMPONENT | 09-01-2016 |
20220135485 | CERAMIC RAW MATERIAL POWDER, MULTILAYER CERAMIC CAPACITOR AND MANUFACTURING METHOD OF MULTILAYER CERAMIC CAPACITOR - Ceramic raw material powder includes: a main phase having a perovskite structure, wherein elements acting as a donor and an acceptor are solid-solved in B sites of the perovskite structure, wherein a first relationship of value Avalue B is satisfied in a circumference region of each grain of the ceramic raw material powder, and value A in the second relationship gradually decreases from the circumference region to the center, wherein value A is a value of (concentration of the element acting as a donor)×(valence of the element acting as a donor−4), and value B is a value of (concentration of the element acting as an acceptor)×(4−valence of the element acting as an acceptor). | 05-05-2022 |