公开(公告)号：US20200312560A1

公开(公告)日：2020-10-01

申请号：US16788430

申请日：2020-02-12

Applicant: Murata Manufacturing Co., Ltd.

Inventor： Kosuke ONISHI ,  Satoshi MURAMATSU ,  Taisuke KANZAKI

IPC: H01G4/232 ,  H01G4/30 ,  H01G4/012 ,  H01G4/248 ,  H01G4/12 ,  H01G4/008

Abstract: A three-terminal multilayer ceramic capacitor includes a capacitor including a ceramic layer, first and second internal electrodes, first and second end surface electrodes, and first and second side surface electrodes, and has a lengthwise dimension of about 1300 μm or more and about 1500 μm or less, a widthwise dimension of about 1000 μm or more and about 1200 μm or less, a heightwise dimension of about 570 μm or more and about 680 μm or less, and a capacitance of about 12 μF or more and about 32 μF or less. The first and second end surface electrodes, and the first and second side surface electrodes include a Ni underlying electrode layer and at least one plating electrode layer. The first and second end surface electrodes have a thickness of about 0.73% or more and about 3.00% or less relative to the lengthwise dimension.

公开(公告)号：US20150016018A1

公开(公告)日：2015-01-15

申请号：US14324397

申请日：2014-07-07

Applicant: Murata Manufacturing Co., Ltd.

Inventor： Kosuke ONISHI ,  Tomohiro SASAKI ,  Yasuhiro NISHISAKA ,  Akira ISHIZUKA ,  Akihiro YOSHIDA

IPC: H01G4/005 ,  H01L41/047 ,  H01C7/00 ,  H01G4/30 ,  H01F27/29

CPC classification number: H01G4/30 ,  H01C7/008 ,  H01F27/2804 ,  H01F27/29 ,  H01F2027/2809 ,  H01G4/005 ,  H01G4/008 ,  H01G4/12 ,  H01G4/248 ,  H01L41/0472 ,  H01L41/293

Abstract: External electrodes, electrically connected to exposed portions of internal electrodes, are arranged on end surfaces of a ceramic main body of a laminated ceramic capacitor. Alloy layers of a metal contained in internal electrodes, and a metal contained in external electrodes, are arranged at the boundaries between external electrodes, and the ceramic main body and internal electrodes. Plating layers are provided on surfaces of external electrodes. A ceramic electronic component having a reduced ESR is thus provided.

Abstract translation: 电连接到内部电极的露出部分的外部电极设置在层叠陶瓷电容器的陶瓷主体的端面上。 包含在内部电极中的金属和外部电极中包含的金属的合金层被布置在外部电极和陶瓷主体和内部电极之间的边界处。 电镀层设置在外部电极的表面上。 因此提供了具有减小的ESR的陶瓷电子部件。