Invention Grant
- Patent Title: Multilayer ceramic capacitor
- Patent Title (中): 多层陶瓷电容器
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Application No.: US14855571Application Date: 2015-09-16
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Publication No.: US09589729B2Publication Date: 2017-03-07
- Inventor: Hiroyuki Wada , Kohei Shimada , Kenji Takagi , Tomomi Koga , Tomotaka Hirata , Hitoshi Nishimura , Hiroki Awata , Sui Uno
- Applicant: Murata Manufacturing Co., Ltd.
- Applicant Address: JP Kyoto
- Assignee: Murata Manufacturing Co., Ltd.
- Current Assignee: Murata Manufacturing Co., Ltd.
- Current Assignee Address: JP Kyoto
- Agency: Keating & Bennett, LLP
- Priority: JP2013-056671 20130319
- Main IPC: H01G4/30
- IPC: H01G4/30 ; H01G2/24 ; H01G4/12 ; H01G4/224 ; H01G4/012 ; H01G4/242 ; H05K1/18 ; H05K3/30 ; H01G4/232

Abstract:
A multilayer ceramic capacitor includes a laminated body including an inner layer portion including ceramic dielectric layers and internal electrodes, and outer layer portions including ceramic dielectric layers. External electrodes connected to the internal electrodes are provided on both ends of the laminated body. The main constituent of the inner layer portion is a perovskite-type compound represented by ABO3. The outer layer portions include first outer layers and second outer layers respectively containing oxides that differ from each other in main constituents, and boundary reaction layers are provided between the first outer layers and the second outer layers. First ceramic dielectric layers outside the boundary reaction layers differ in color from second ceramic dielectric layers inside the boundary reaction layers.
Public/Granted literature
- US20160005543A1 MULTILAYER CERAMIC CAPACITOR Public/Granted day:2016-01-07
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