- 专利标题: Dielectric composition and multilayer ceramic capacitor containing the same
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申请号: US15684645申请日: 2017-08-23
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公开(公告)号: US10418178B2公开(公告)日: 2019-09-17
- 发明人: Jin Woo Kim , Jong Ho Lee , Min Gi Sin , Hak Kwan Kim , Chin Mo Kim , Chi Hwa Lee , Hong Seok Kim , Woo Sup Kim , Chang Hwa Park
- 申请人: SAMSUNG ELECTRO-MECHANICS CO., LTD.
- 申请人地址: KR Suwon-si, Gyeonggi-do
- 专利权人: SAMSUNG ELECTRO-MECHANICS CO., LTD.
- 当前专利权人: SAMSUNG ELECTRO-MECHANICS CO., LTD.
- 当前专利权人地址: KR Suwon-si, Gyeonggi-do
- 代理机构: Morgan, Lewis & Bockius LLP
- 优先权: KR10-2016-0148475 20161109
- 主分类号: C04B35/468
- IPC分类号: C04B35/468 ; C04B35/628 ; H01G4/10 ; H01G4/12 ; H01G4/33 ; H01L21/00 ; H01G4/30 ; C01G23/00 ; H01G4/232 ; H01G4/248
摘要:
A multilayer ceramic capacitor includes: a ceramic body including dielectric layers and first and second internal electrodes disposed to face each other with respective dielectric layers interposed therebetween; and first and second external electrodes disposed on an external surface of the ceramic body, wherein the dielectric layer contains a barium titanate-based powder particle having a core-shell structure including a core and a shell around the core, the shell having a structure in which titanium is partially substituted with an element having the same oxidation number as that of the titanium in the barium titanate-based powder particle and having an ionic radius different from that of the titanium in the barium titanate-based powder particle, and the shell covers at least 30% of a surface of the core.
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