Invention Grant
- Patent Title: Multilayer ceramic capacitor and method of manufacturing the same
- Patent Title (中): 多层陶瓷电容器及其制造方法
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Application No.: US14574796Application Date: 2014-12-18
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Publication No.: US09373445B2Publication Date: 2016-06-21
- Inventor: Takafumi Okamoto
- 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: JP2012-154449 20120710
- Main IPC: C04B35/00
- IPC: C04B35/00 ; H01G4/12 ; H01G4/30 ; C04B35/468 ; C04B35/626

Abstract:
A multilayer ceramic capacitor includes a multilayer body including a plurality of stacked dielectric layers including a dielectric ceramic that includes a plurality of crystal grains and a plurality of internal electrodes disposed at a plurality of interfaces between the dielectric layers, and external electrodes. The multilayer body includes a Ba and Ti containing perovskite compound, La, Mg, Mn and Al, and satisfies conditions such that in a case in which a content of Ti is set to 100 molar parts, a fraction of each content of La, Mg, Mn and Al relative to the content of Ti is such that La is about 0.2 to about 1.2 molar parts, Mg is about 0.1 molar part or less, Mn is about 1.0 to about 3.0 molar parts and Al is about 0.5 to about 2.5 molar parts, and an average number of crystal grains included in each of the dielectric layers in the stacking direction is one or more to three or less.
Public/Granted literature
- US20150103467A1 MULTILAYER CERAMIC CAPACITOR AND METHOD OF MANUFACTURING THE SAME Public/Granted day:2015-04-16
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