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Multi-layer ceramic capacitor 发明授权

2023-01-02 3130 931K 0

专利信息

申请日期 2025-06-27 申请号 US16744731
公开(公告)号 US11257626B2 公开(公告)日 2022-02-22
公开国别 US 申请人省市代码 全国
申请人 TAIYO YUDEN CO LTD
简介 A multi-layer ceramic capacitor includes a ceramic body and external electrodes. The ceramic body includes ceramic layers laminated in a first direction, first and second internal electrodes between the ceramic layers, a facing portion in which the internal electrodes face in the first direction, and a cover that covers the facing portion in the first direction. The facing portion includes a first region including at least one element of manganese, a rare-earth element, or magnesium and having a flat distribution of a concentration of the element along the first direction, and a second region disposed between the cover and the first region and having an increasing concentration of the element from the first region toward the cover. The ceramic layers include a capacitance forming layer between the first and second internal electrodes, and a dummy layer between the first or second internal electrodes and across the first and second regions.


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