基本信息:
- 专利标题： 介電質瓷器組合物及電子元件 DIELECTRIC CERAMIC COMPOSITION AND ELECTRONIC DEVICE
- 专利标题（英）：Dielectric ceramic composition and electronic device
- 专利标题（中）：介电质瓷器组合物及电子组件 DIELECTRIC CERAMIC COMPOSITION AND ELECTRONIC DEVICE
- 申请号：TW094135473 申请日：2005-10-12
- 公开(公告)号：TWI270902B 公开(公告)日：2007-01-11
- 发明人： 伊東和重 KAZUSHIGE ITO , 佐藤陽 AKIRA SATO
- 申请人： TDK股份有限公司 TDK CORPORATION
- 申请人地址： 日本
- 专利权人： TDK股份有限公司 TDK CORPORATION
- 当前专利权人： TDK股份有限公司 TDK CORPORATION
- 当前专利权人地址： 日本
- 代理人： 洪澄文
- 优先权： 日本 2004-297874 20041012
- 主分类号： H01G
- IPC分类号： H01G
根據本發明，可提供一種由介電質瓷器組合物所構成之積層陶瓷電容器1，係具有由介電質瓷器組合物所構成之介電質層2與內部電極層3交互積層之電容器元件本體10之積層陶瓷電容器1，前述介電質瓷器組合物，係具有在實質上由主成分所構成之核心22a之周圍，擁有副成分擴散至主成分之殼24a之複數介電質粒子之介電質瓷器組合物，其特徵在於：以表示平均粒徑值之介電質粒子為對象之情況時，前述殼24a之最大厚度t1與最小厚度t2之差(t1-t2)，係控制於前述介電體粒子之半徑R之6~60%。
A multilayer ceramic capacitor comprising a capacitor element body: wherein dielectric layers composed of a dielectric ceramic composition and internal electrode layers are alternately stacked; the dielectric ceramic composition comprises a plurality of dielectric particles each having a shell, wherein subcomponents are dispersed in a main component, formed around a core substantially composed of the main component; and a difference of the maximum thickness and the minimum thickness of the shell in the dielectric particles having an average particle diameter is controlled to be 6 to 60% of a radius of the dielectric particles; wherein a high permittivity and preferable temperature characteristic are obtained and TC bias characteristics are improved, is provided.