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Dielectric ceramic composition and laminated ceramic capacitor 发明申请

2023-01-28 1520 109K 0

专利信息

申请日期 2025-06-26 申请号 JP2012006951
公开(公告)号 JP2013147358A 公开(公告)日 2013-08-01
公开国别 JP 申请人省市代码 全国
申请人 TDK CORP
简介 PROBLEM TO BE SOLVED : To provide a dielectric ceramic composition showing excellent reliability, while keeping a high relative dielectric constant, even when especially a dielectric layer is thinned, and to provide a laminated ceramic capacitor to which the dielectric ceramic composition is applied, concerning the dielectric ceramic composition and the laminated ceramic capacitor.SOLUTION : In a dielectric ceramic composition, first particles 5 containing barium titanate as a main component and having a core part, and second particles 6 in which a rare earth element is solid-dissolved in the whole particles exist, as dielectric particles, and the first particles 5 occupy ≥75% in the number of particles exceeding the average particle size D 50, and the second particles 6 occupy ≥75% in the number of particles below the average particle size D 50.


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