Samsung Electro-Mechanics Co., Ltd.

Ki Myoung Yun

Jae Sung Park

Hyung Soon Kwon

Hyoung Uk Kim

Tae Young Ham

Jong Han Kim

Chang Hak Choi

Dong Jun Jung

Hyung Joon Jeon

Jong Hoon Yoo

Min Young Choi

Kwang Hee Nam

Sang Min Youn

Chang Hoon Kim

Seung In Baik

Kum Jin Park

Joon Yeob Cho

A multilayer capacitor includes a body including a dielectric layer and internal electrodes; and an external electrode disposed on the body to be connected to the internal electrode, wherein the dielectric layer includes a plurality of grains having a core-shell structure having a pore in a core, and the dielectric layer includes 20% to 40% of grains having two or less pores, among the plurality of grains.

Multilayer capacitor including dielectric layer with grains having pores

A dielectric ceramic composition and a multilayer ceramic capacitor comprising the same includes a barium titanate (BaTiO)-based base material main ingredient and an accessory ingredient, and the accessory ingredient includes a third trivalent lanthanide rare earth element A and terbium (Tb) as rare earth elements, and a molar ratio (Tb/A) of a content of terbium (Tb) to the content of the trivalent lanthanide rare earth element A satisfies 0.15&#x2264;Tb/A&#x3c;0.50.

Dielectric ceramic composition and multilayer ceramic capacitor comprising the same

A multilayer ceramic capacitor includes a ceramic body having a dielectric layer disposed between two internal electrodes. The dielectric layer includes a plurality of dielectric grains. A grain boundary between at least two dielectric grains of the plurality of dielectric grains has a ratio Si/Ni of a weight of Si to a weight of Ni in the grain boundary that is at least 1 and 6 or less.

Multi-layered ceramic capacitor

A multilayer capacitor includes: a body including dielectric layers and first and second internal electrodes alternately disposed with respective dielectric layers interposed therebetween; and first and second external electrodes disposed on the body to be connected to the first and second internal electrodes, respectively. The dielectric layer contains BaTiOas a main ingredient, and includes a plurality of grains and grain boundaries formed between adjacent grains, the grain boundary containing Si in an amount of 8.0 to 18.0 wt % and Al and Mg in a total content of 2.0 to 6.0 wt %.

Multilayer capacitor

A dielectric composition includes: a base material powder including (CaSr) (ZrTi)O(0&#x3c;x&#x2264;0.7, 0&#x3c;y&#x2264;0.03); a first subcomponent including at least one selected from the group of an oxide of manganese (Mn) and a carbonate of manganese (Mn); a second subcomponent including at least one selected from the group of an oxide of yttrium (Y) and a carbonate of yttrium (Y), where a content of the second subcomponent is within a range from 2 to 3 mol, based on 100 mol of the base material powder; and a third subcomponent including at least one selected from the group of an oxide of silicon (Si) and a carbonate of silicon (Si), and an electronic component uses the same.

Dielectric composition and electronic component using the same

A capacitor component includes a body in which a dielectric layer and an internal electrode are alternately stacked, and an external electrode disposed on the body and connected to the internal electrode. The dielectric layer includes a composite layer including a dielectric material powder and a metallic particle and first and second protective layers including a dielectric material powder and spaced apart by the composite layer. A thickness of each of the first and second protective layers is equal to or greater than &#x2153; of a thickness of the dielectric layer.

Capacitor component and method of manufacturing the same

A multilayer electronic component includes: a body including first and second internal electrodes alternately disposed with respective dielectric layers interposed therebetween; and first and second external electrodes disposed on the body to be connected to the first and second internal electrodes, respectively, wherein each of the dielectric layers includes BaTiOand includes a plurality of grains and grain boundaries formed between adjacent grains, and a sum of contents of Si and Dy in the grain boundary is 10 to 15 parts by weight.

Dielectric composition and multilayer electronic component

There are provided a composite perovskite powder, a preparation method thereof, and a paste composition for an internal electrode having the same, the composite perovskite powder capable of preventing ions from being eluted from an aqueous system at the time of synthesis while being ultra-atomized, such that when the composite perovskite powder is used as an inhibitor powder for an internal electrode, sintering properties of the internal electrode may be deteriorated, and sintering properties of a dielectric material may be increased; accordingly, connectivity of the internal electrode may be improved, and permittivity and reliability of a multilayer ceramic capacitor (MLCC) may be increased.

Composite perovskite powder, preparation method thereof, and paste composition for internal electrode having the same

There are provided a dielectric composition and a preparation method thereof, the dielectric composition including: a first perovskite powder for a core represented by ABO: and a second perovskite powder for a shell represented by ABO, having an average particle diameter corresponding to &#x2153; to 1/10 of an average particle diameter of the first perovskite powder, and included in an amount of 1 to 70 parts by weight with respect to 100 parts by weight of the first perovskite powder, wherein particles of the second perovskite powder have pores having a volume fraction of 3 to 50 vol % therein. According to the present invention, there are provided a dielectric composition having excellent dielectric characteristics and electrical characteristics, and a preparation method thereof.

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Suwon-si, South Korea

Ki Myoung Yun