Invention Grant
- Patent Title: Dielectric ceramic composition, stacked ceramic capacitor using the same, and method of manufacturing the same
- Patent Title (中): 介电陶瓷组合物，使用其的叠层陶瓷电容器及其制造方法
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Application No.: US14854597Application Date: 2015-09-15
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Publication No.: US09564271B2Publication Date: 2017-02-07
- Inventor: Koichi Banno , Shoichiro Suzuki , Masaru Miyayama , Yuji Noguchi
- Applicant: Murata Manufacturing Co., Ltd.
- Applicant Address: JP Nagaokakyo-Shi, Kyoto-Fu
- Assignee: MURATA MANUFACTURING CO., LTD.
- Current Assignee: MURATA MANUFACTURING CO., LTD.
- Current Assignee Address: JP Nagaokakyo-Shi, Kyoto-Fu
- Agency: Arent Fox LLP
- Priority: JP2013-078906 20130404
- Main IPC: C04B35/48
- IPC: C04B35/48 ; H01G4/12 ; H01G4/30 ; H01B3/12 ; C04B35/495 ; H01G4/224
Abstract:
A stacked ceramic capacitor that includes a ceramic body formed by stacking dielectric ceramic layers and internal electrodes mainly composed of Ni; and an external electrode formed on an outer surface of ceramic body. The dielectric ceramic layers are formed by using a dielectric ceramic composition that includes a main ingredient expressed by (KaNabLicM2d)(NbwTaxMgyM4z)O3, where M2 is at least one of Ca, Sr and Ba, M4 is at least one of Zr, Hf and Sn, and a, b, c, d, w, x, y, and z satisfy predetermined relationships; and includes 2 to 15 molar parts of Mn with respect to 100 molar parts of a total content of Nb, Ta, Mg, and M4.
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