Abstract: A multilayer ceramic capacitor including an internal electrode layer, an internal dielectric layer having a thickness of less than 2 ?m, and an external dielectric layer is provided, wherein the internal dielectric layer and external dielectric layer contain a plurality of dielectric particles, and when assuming that an average particle diameter of the entire dielectric particles in the internal dielectric layer is D50a (unit: ?m), an average particle diameter of the entire dielectric particles existing at a position being away at least by 5 ?m from the outermost internal electrode layer in the thickness direction is D50b (unit: ?m), a ratio (D50a/D50b) of the D50a and D50b is y (no unit), standard deviation of a particle size distribution of the entire dielectric particles in the internal dielectric layer is ? (no unit), and a ratio that dielectric particles (coarse particles) having an average particle diameter of 2.

Abstract: A multilayer ceramic capacitor comprising an internal electrode layer and a dielectric layer having a thickness of less than 2 ?m is provided, wherein the dielectric layer contains a plurality of dielectric particles, and when it is assumed that standard deviation of a particle distribution of the entire dielectric particles in the dielectric layer is ? (no unit), an average particle diameter of the entire dielectric particles in the dielectric layer is D50 (unit: ?m), and a rate that dielectric particles (coarse particles) having an average particle diameter of 2.25 times of the D50 exist in the entire dielectric particles is p (unit: %), the ? and p satisfy ?<0.130 and p<12%; by which a TC bias characteristic can be expected to be improved while maintaining various electric characteristics, particularly a sufficient permittivity, even when the interlayer dielectric layer is made thin.

Abstract: A multilayer ceramic capacitor comprising an internal electrode layer, an internal dielectric layer having a thickness of less than 2 ?m, and an external dielectric layer is provided, wherein the internal dielectric layer and external dielectric layer contain a plurality of dielectric particles, and when assuming that an average particle diameter of the entire dielectric particles in the internal dielectric layer is D50a (unit: ?m), an average particle diameter of the entire dielectric particles existing at a position being away at least by 5 ?m from the outermost internal electrode layer in the thickness direction is D50b (unit: ?m), a ratio (D50a/D50b) of the D50a and D50b is y (no unit), standard deviation of a particle size distribution of the entire dielectric particles in the internal dielectric layer is ? (no unit), and a ratio that dielectric particles (coarse particles) having an average particle diameter of 2.

Abstract: A multilayer ceramic capacitor 1 having internal electrode layers 3, internal dielectric layers 2 having the thickness of less than 2 ?m, and external dielectric layers 20 wherein; the internal dielectric layers 2 and the external dielectric layers 20 include a plural number of dielectric particles 2a, 20a, and when y1 is ratio(D50a/D50b) of D50a and D50b where D50a is an average particle size of dielectric particles 2a included in the internal dielectric layers 2 and D50b is an average particle size of dielectric particles 20a included in the external dielectric layer 20 and located at least 5 ?m away from an internal electrode layer 3a, arranged outermost part of all the internal electrode layers, to the stacked direction, and x is thickness of the internal dielectric layer 2, y1 and x satisfy the following equations, y1??0.75x+2.275 and y1??0.75x+1.675.

Abstract: A multilayer ceramic capacitor 1 having internal electrode layers 3 and internal dielectric layers 2 having thickness of at most 3.5 ?m wherein; the internal dielectric layers 2 comprising dielectric particles contacting the internal electrode layers (contacting dielectric particles 2a) and dielectric particles not contacting the internal electrode layers (non-contacting dielectric particles 2b), and when an average particle size of an entire plural number of dielectric particles included in the internal dielectric layers 2 is D50, and standard deviation for particle size range of the contacting dielectric particles is ?, the multilayer ceramic capacitor satisfy the following equations; D50?0.25 ?m and ??0.14. According to the present invention, multilayer ceramic capacitor 1 is provided wherein the capacitor is expected to have improved DC bias characteristic even when the internal dielectric layers 2 are made thinner.

Abstract: The invention aims to provide a multilayer ceramic capacitor with high dielectric constant, a high capacitance, and an excellent reliability by eliminating oxygen vacancy in dielectric layers and suppressing oxidation of Ni inner electrodes. The multilayer ceramic capacitor comprises a multilayered dielectric body composed by alternately piling up dielectric layers containing mainly barium titanate and inner electrode layers containing mainly Ni and a first hetero-phase containing Mg—Si—O as constituent elements exists in the capacitor.

Abstract: There is provided a multilayer ceramic capacitor 1, having an internal electrode layer 3 and an interlayer dielectric layer 2 having a thickness of 3.5 ?m or less, wherein the interlayer dielectric layer 2 is composed of contact dielectric particles 2a contacting said internal electrode layer and noncontact dielectric particles 2b not contacting said internal electrode layer; and when assuming that an average particle diameter of the contact dielectric particles 2a is D50e and an average particle diameter of the noncontact dielectric particles 2b is D50d, D50e<0.450 ?m and (D50e/D50d)=1.20 to 3.00 (note that 1.20 and 3.00 are excluded) are satisfied, wherein an improvement of a bias characteristic at 85° C. can be expected even when the interlayer dielectric layer 2 is made thin.

Abstract: In order to provide dielectric ceramic composition having low IR defect rate and high relative dielectric constant even when the multilayer ceramic capacitor is made thinner, dielectric ceramic composition including a main component expressed by a composition formula {{Ba(1-x)Cax}O}A{Ti(1-y-z)ZryMgz}BO2 and subcomponents of Mn oxide, Y oxide, V oxide and Si oxide is provided. In the above formula, A, B, x , y and z are as follows: 0.995?A/B?1.020, 0.0001?x?0.07, preferably 0.001?x?0.05, 0.1?y?0.3 and 0.0005?z?0.0 1, preferably 0.003?z?0.0 1.

Abstract: A multilayer ceramic capacitor having internal electrode layers and dielectric layers with dielectric particles is disclosed. An average particle diameter of the dielectric particles, when measured parallel with the direction of the internal electrode layers, is larger than a thickness of the dielectric layer. A ratio (R/d) between the average particle diameter (R) and the thickness (d) of the dielectric layer is 1<R/d<3.

Abstract: A method of producing a multilayer ceramic capacitor having internal electrode layers and dielectric layers with dielectric particles is disclosed. An average particle diameter of the dielectric particles, when measured parallel with the direction of the internal electrode layers, is larger than a thickness of the dielectric layer. A ratio (R/d) between the average particle diameter (R) and the thickness (d) of the dielectric layer is 1<R/d<3.

Abstract: The invention provides a multilayer ceramic capacitor capable of preventing the occurrence of cracks by inhibiting the multilayer capacitor from expanding in a stacking direction and a width direction. The multilayer ceramic capacitor includes a capacitor element (10) in which dielectric layers (11a and 11b) and internal electrodes (12) are alternately stacked. The capacitor element (10) is obtained by stacking and firing a dielectric paste layer and an internal electrode paste layer. An expansion coefficient x in the stacking direction lies between −0.05i% and 0.05i% inclusive, where i denotes the number of dielectric layers (11a), preferably the expansion coefficient x is 0% or less, or more preferably the expansion coefficient x lies between −10% and 0% inclusive. Preferably, an expansion coefficient y in the width direction lies between −0.05i% and 0% inclusive.

Abstract: A multilayer ceramic capacitor comprises internal electrode layers and dielectric layers. An average particle diameter (R), in a direction parallel with said internal electrode layer, in dielectric particles constituting said dielectric layers is larger than a thickness (d) of said dielectric layer. A ratio (R/d) between the average particle diameter (R) and the thickness (d) of the dielectric layer is 1<R/d<3.

Abstract: Disclosed is a multilayer capacitor capable of preventing the occurrence of cracks by inhibiting the multilayer capacitor from expanding in a stacking direction and a width direction. The multilayer capacitor comprises a capacitor element (10) in which dielectric layers (11a and 11b) and internal electrodes (12) are alternately stacked. The capacitor element (10) is obtained by stacking and firing a dielectric paste layer and an internal electrode paste layer. An expansion coefficient x in the stacking direction lies between −0.05i % and 0.05i % inclusive, where i denotes the number of dielectric layers (11a), preferably the expansion coefficient x is 0% or less, or more preferably the expansion coefficient x lies between −10% and 0% inclusive. Preferably, an expansion coefficient y in the width direction lies between −0.05i % and 0% inclusive.