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DIELECTRIC CERAMIC COMPOSITION AND CERAMIC ELECTRONIC DEVICE 发明申请

2023-05-27 3750 370K 0

专利信息

申请日期 2025-06-26 申请号 US15064431
公开(公告)号 US20160268045A1 公开(公告)日 2016-09-15
公开国别 US 申请人省市代码 全国
申请人 TDK CORPORATION
简介 A dielectric ceramic composition including a main component having a perovskite crystal structure expressed by general formula ABO3, a first sub-component of an oxide of a rare earth element, and a second sub-component of an oxide of Si, and at least dielectric particles having a core-shell structure and segregated particles, in which a concentration of the rare earth element in the segregated particles is two or more times an average concentration of the rare earth element in a shell portion of the dielectric particles having the core-shell structure, and an area of the region occupied by the segregated particles is 5.0% or less and an average of cross-sectional areas of the respective segregated particles is 0.075 μm2 or less in a cross-section obtained by cutting the dielectric ceramic composition.


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