发明名称 DIELECTRIC CERAMIC COMPOSITION AND CERAMIC ELECTRONIC COMPONENT
摘要 <P>PROBLEM TO BE SOLVED: To provide a dielectric ceramic composition which improves a relative dielectric constant and has good reliability and a ceramic electronic component in which this dielectric ceramic composition is applied to the dielectric layer. <P>SOLUTION: The dielectric ceramic composition includes a compound which is expressed by a formula of ABO<SB POS="POST">3</SB>(wherein A is Ba alone, or Ba and at least one selected from Ca and Sr, and B is Ti alone, or Ti and Zr) and has a perovskite-type crystal structure, and an oxide of a rare-earth element including Sc and Y. The dielectric ceramic composition includes a dielectric particle having a core-shell structure which has a core and a shell in which at least R element is contained, and in the shell, the region showing a maximum content ratio of R element is a boundary region between the core and the shell. <P>COPYRIGHT: (C)2012,JPO&INPIT
申请公布号 JP2012051755(A) 申请公布日期 2012.03.15
申请号 JP20100195107 申请日期 2010.08.31
申请人 TDK CORP 发明人 MURAKAWA KIDO;NAKANO YUKIE;OTSUKI SHIRO
分类号 C04B35/468;H01B3/12;H01G4/12;H01G4/30 主分类号 C04B35/468
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