Samsung Electro-mechanics Co., Ltd.

Sungkyunkwan University

Seok Hyun Yoon

Jin Woo Kim

Doo Il Kim

Chang Sik Kim

Chan Hee Nam

Jae Sung Park

Song Je Jeon

Dong Hun Kim

Chang Hoon Kim

Chang Hak Choi

Doo Young Kim

Jung Deok Park

Hyo Ju Lee

Tae Hyung Kim

Hee Sun Chun

Yun Jung Park

In Ho Jeon

Sang Hoon Kwon

Jong Bong Lim

Soo Kyong Jo

Jeong Wook Seo

Hyeg Soon An

Hui Sun Park

Mi Yang Kim

Seung Ho Lee

Jung Wook Seo

Sang Huk Kim

Ji Young Park

Byung Kil Yun

Bon Hyeong Koo

Min Jung Jang

Byoung Hwa Lee

Jae Yeol Choi

Kang Heon Hur

Hyung Soon Kwon

Ki Yong Lee

Hyoung Uk Kim

Sun Ho Yoon

Jong Myeong Jeon

Se Yong Kim

Geon Hoi Kim

Young Ghyu Ahn

Tae Young Kim

Sung Kwon Wi

Ji Hyun Lee

Jeong Ryeol Kim

No Il Park

Sung Hyung Kang

Hang Kyu Cho

Du Won Choi

Jong Suk Jeong

Yun Gwan Kim

Hyo Jung Kim

Sang Hyuk Kim

Jin Seong Kim

Dong Geon Yoo

Kwang Hee Nam

Kyu Ree Kim

Suk Hyun Song

Se Yoon Park

Dae Ho Yoon

Han Soung Jeong

Byung Ho Lee

Takaki Masaki

No Hoon Park

Soo Kyung Cho

Hyun Min Lee

Joo Hee Lee

A ceramic electronic component includes a body including a dielectric layer and an internal electrode disposed alternately with the dielectric layer; and an external electrode disposed on the body, wherein the dielectric layer includes a first region extending from an interfacial surface with the internal electrode to 50 nm of the dielectric layer in an inward direction and a second region excluding the first region, and wherein, in the first region, an average content of In based on overall elements excluding oxygen is 0.5 at % or more and 2.0 at % or less, and an average content of Sn based on overall elements excluding oxygen is 0.5 at % or more and 1.75 at % or less.

Ceramic electronic component and method of manufacturing the same

A multilayer electronic component includes a body including a dielectric layer and internal electrodes; and an external electrode disposed on the body, wherein the dielectric layer includes a boundary portion, a region adjacent to a boundary with the internal electrode, and wherein the boundary portion includes a region satisfying an atomic ratio: 1.0%≤Sn/(Ba+Ti+Sn)≤1.5%.

Multilayer electronic component

A multilayer electronic component includes a body including a dielectric layer and an internal electrode; and an external electrode disposed on the body, wherein the dielectric layer includes a rare earth element, a secondary phase of the rare earth element and a dielectric grain, wherein, when an average thickness of the dielectric layer is defined as td and a maximum size of the dielectric layer of a secondary phase of the rare earth element in the thickness direction is defined as D, the dielectric layer includes two or more secondary phases of a rare earth element satisfying D/td≤0.2.

A multilayer electronic component includes a body including a dielectric layer and an internal electrode; and an external electrode disposed on the body, wherein the dielectric layer includes a plurality of dielectric grains, and wherein the plurality of dielectric grains include one or more first dielectric grains in which a sum of lengths of defects in a dielectric grain is 150 nm or more.

Multilayer electronic component and method of manufacturing the same

A multilayer electronic component includes: a body including a dielectric layer including a plurality of dielectric grains and internal electrodes alternately disposed with the dielectric layer; and an external electrode disposed on the body and connected to the internal electrodes At least one of the plurality of dielectric grains includes Ba, Ti, Sn, and a rare earth element and has a core-dual shell structure, which includes a core, a first shell disposed on at least a portion of the core, and a second shell disposed on at least a portion of the first shell. When an average molar ratio of Sn to Ti included in the first and second shells is S1 and S2, respectively, and an average molar ratio of the rare earth element to Ti included in the first and second shells is R1 and R2, respectively, S1>S2 and R2>R1 are satisfied.

A ceramic electronic component includes a body including a dielectric layer and an internal electrode; and an external electrode disposed on the body and connected to the internal electrode. The dielectric layer includes a plurality of grains and grain boundaries disposed between adjacent grains. The grain boundary includes a secondary phase including Sn, a rare-earth element, and a first subcomponent. The rare-earth element includes at least one of Y, Dy, Ho, Er, Gd, Ce, Nd, Sm, Tb, Tm, La, Gd and Yb. The first subcomponent includes at least one of Si, Mg, and Al.

Ceramic electronic component

A multilayer electronic component includes a body including a dielectric layer including a plurality of dielectric grains and internal electrodes alternately disposed with the dielectric layer in a first direction and external electrodes disposed on the body, wherein at least one of the plurality of dielectric grains has a core-shell structure including an inner core and a shell covering at least a portion of the core, a ratio of an average size of the core to an average size of the dielectric grains having the core-shell structure is 0.4 or more and 0.8 or less, a ratio ((Dy+Tb)/Sn) of the sum of the moles of dysprosium (Dy) and the moles of terbium (Tb) to the moles of tin (Sn) included in the dielectric layer satisfies 0.7 or more and 1.5 or less, and at least one of the dielectric layers has four or more dielectric grains in the first direction.

A multilayer electronic component includes a body including a dielectric layer and internal electrodes; and an external electrode disposed on the body, wherein the dielectric layer includes dielectric grains, wherein at least one of the dielectric grains includes a twin boundary, and wherein the dielectric layer includes a region in which a sum of lengths of the twin boundaries included in a 2 μm×2 μm region is 1.49 μm or more.

A multilayer capacitor includes a body including a laminate structure in which at least one first internal electrode and at least one second internal electrode are alternately stacked in a first direction with at least one dielectric layer therebetween, and first and second external electrodes spaced apart on the body, to be connected to at least one first internal electrode and at least one second internal electrode, respectively. The body includes, in a larger molar content, at least one selected from the group consisting of Dy, Tb, Y, Sm, Ho, Gd, Er, Ce, La and Nd in a capacitance formation region including a region between at least one first internal electrode and at least one second internal electrode than in a margin region including a region between a boundary line of at least one first internal electrode and at least one second internal electrode and a surface of the body.

Multilayer capacitor

A dielectric composition includes a BaTiO-based component as a main component, a donor component including a first element and a second element each having a shorter ionic radius and greater atomic weight than Ba, and an acceptor component including at least one of Mg, Al, Mn and V. An ionic radius of the second element is greater than an ionic radius of the first element, a molar content of the second element is less than a molar content of the first element, and a molar content of the acceptor component is greater than a molar content of the donor component.

Dielectric composition and multilayer capacitor comprising the same

A dielectric ceramic composition includes a base material main component of barium titanate and a subcomponent. A microstructure of the dielectric ceramic composition after sintering includes a first grain having a Ca content of less than 3.5 at % and a second grain having a Ca content of 3.5 to 13.5 at %, and an area ratio of the second grain to an area of the total grains is 70% to 95%.

Dielectric ceramic composition and multilayer ceramic electronic component using the same

A ceramic electronic component includes a body, including a dielectric layer and an internal electrode, and an external electrode disposed on the body and connected to the internal electrode. At least a region of the dielectric layer includes tin (Sn) and a lanthanide rare earth element (RE) including dysprosium (Dy). In the at least a region of the dielectric layer, a molar ratio of tin (Sn) to dysprosium (Dy) is from 0.15 to 0.30.

A ceramic electronic component includes: a body including an active portion, including a first dielectric layer and an internal electrode, and a margin portion disposed a side surface of the active portion and including a second dielectric layer; and an external electrode disposed on the body and connected to the internal electrode. The first and second dielectric layers have different dielectric compositions. The first dielectric layer includes tin (Sn) and dysprosium (Dy). The second dielectric layer includes magnesium (Mg).

Ceramic electronic component including dielectric layers having different dielectric compositions

A capacitor component includes: a body including a dielectric layer and an internal electrode layer; and an external electrode disposed on the body, and connected to the internal electrode layer. A surface color of the body is R≤30, G≤30, B≤40 based on R/G/B, and a dielectric constant of the dielectric layer is 2000 or more and 4000 or less.

Dielectric ceramic composition and capacitor component

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Gyunggi-do, South Korea

Seok Hyun Yoon