公开(公告)号：US20170011851A1

公开(公告)日：2017-01-12

申请号：US15065553

申请日：2016-03-09

Applicant: SAMSUNG ELECTRO-MECHANICS CO., LTD.

Inventor： Seok Hyun YOON ,  Sung Kwon WI ,  Jung Deok PARK ,  Jung Wook SEO ,  Chan Hee NAM ,  Dong Hun KIM

IPC: H01G4/12 ,  C04B35/468 ,  H01G4/008 ,  H01G4/30 ,  H01G4/248

CPC classification number: H01G4/1227 ,  C04B35/4684 ,  C04B2235/3203 ,  C04B2235/3239 ,  C04B2235/3241 ,  C04B2235/3267 ,  C04B2235/3272 ,  C04B2235/3275 ,  C04B2235/3279 ,  C04B2235/3281 ,  C04B2235/3284 ,  C04B2235/3418 ,  C04B2235/36 ,  C04B2235/785 ,  C04B2235/786 ,  C04B2237/68 ,  H01G4/0085 ,  H01G4/1218 ,  H01G4/248 ,  H01G4/30

Abstract: A dielectric ceramic composition and a multilayer ceramic capacitor containing the same are provided. The dielectric ceramic composition contains a base material powder represented by (1−x)BaTiO3−xPbTiO3 containing a first main ingredient represented by BaTiO3 and a second main ingredient represented by PbTiO3, wherein x satisfies 0.0025≦x≦0.4. The multilayer ceramic capacitor includes a ceramic body in which dielectric layers containing the dielectric ceramic composition are alternately stacked with first and second internal electrodes, and first and second external electrodes formed on both end portions of the ceramic body and respectively electrically connected to the first and second internal electrodes.

Abstract translation: 提供了一种电介质陶瓷组合物和含有它的多层陶瓷电容器。 电介质陶瓷组合物含有由（1-x）BaTiO3-xPbTiO3表示的基材粉末，其含有由BaTiO 3表示的第一主成分和由PbTiO 3表示的第二主成分，其中x满足0.0025≤x≤0.4。 多层陶瓷电容器包括陶瓷体，其中包含电介质陶瓷组合物的电介质层交替地堆叠有第一和第二内部电极，第一和第二外部电极形成在陶瓷体的两个端部上并分别电连接到第一和第二内部电极 第二内部电极。

公开(公告)号：US20220220036A1

公开(公告)日：2022-07-14

申请号：US17697169

申请日：2022-03-17

Applicant: SAMSUNG ELECTRO-MECHANICS CO., LTD.

Inventor： Seok Hyun YOON ,  Jung Deok PARK ,  Chan Hee NAM ,  Dong Hun KIM

IPC: C04B35/468 ,  H01B3/12 ,  C04B35/49 ,  H01G4/30 ,  H01G4/12 ,  B32B18/00

Abstract: A multilayer ceramic capacitor includes: a ceramic body in which dielectric layers and first and second internal electrodes are alternately stacked; and first and second external electrodes formed on an outer surface of the ceramic body and electrically connected to the first and second internal electrodes, respectively. In a microstructure of the dielectric layer, dielectric grains are divided by a dielectric grain size into sections each having an interval of 50 nm, respectively, a fraction of the dielectric grains in each of the sections within a range of 50 nm to 450 nm is within a range of 0.025 to 0.20, and a thickness of the dielectric layer is 0.8 μm or less.

公开(公告)号：US20200381179A1

公开(公告)日：2020-12-03

申请号：US16574618

申请日：2019-09-18

Applicant: SAMSUNG ELECTRO-MECHANICS CO., LTD.

Inventor： Seok Hyun YOON ,  Mi Yang KIM ,  Jin Woo KIM ,  Dong Hun KIM ,  Jung Deok PARK

IPC: H01G4/12 ,  C04B35/26 ,  C04B35/468 ,  C04B35/48 ,  C04B35/14

Abstract: A dielectric ceramic composition and a multilayer ceramic electronic component are provided, the dielectric ceramic composition includes a barium titanate base material main component and a subcomponent, a microstructure after sintering includes a first crystal grain including 3 or less domain boundaries and a second crystal grain including 4 or more domain boundaries, and an area ratio of the second crystal grain to the total crystal grains is 20% or less.