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Multilayer ceramic capacitor 发明申请

2023-03-27 3310 193K 0

专利信息

申请日期 2025-06-27 申请号 JP2014544273
公开(公告)号 JPWO2014148373A1 公开(公告)日 2017-02-16
公开国别 JP 申请人省市代码 全国
申请人 株式会社村田製作所
简介 A multilayer ceramic capacitor includes a ceramic main body including an inner layer portion including third ceramic layers and a plurality of inner electrodes arranged at interfaces between the third ceramic layers, and first and second outer layer portions respectively including first and second ceramic layers, the first and second ceramic layers being arranged vertically so as to sandwich the inner layer portion. The third ceramic layers and the first and second outer layer portions contain a perovskite-type compound represented by ABO3 where A contains one or more of Ba, Sr, and Ca, B contains one or more of Ti, Zr, and Hf, and O represents oxygen) as a main component. Where a rare-earth element concentration (CR) in the third ceramic layers is compared to a rare-earth element concentration (Cr) in outermost layer portions including at least outermost surfaces of the first and second outer layer portions, CR>Cr (inclusive of Cr=0).


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