发明公开
EP1829842A1 DIELECTRIC CERAMIC AND MULTILAYER CERAMIC CAPACITOR
审中-公开
德国克莱姆切奇（KERAMIK UNDERHKCHICHTIGER KERAMIKKONDENSATOR）
- 专利标题： DIELECTRIC CERAMIC AND MULTILAYER CERAMIC CAPACITOR
- 专利标题（中）： 德国克莱姆切奇（KERAMIK UNDERHKCHICHTIGER KERAMIKKONDENSATOR）
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申请号： EP05814135.9申请日： 2005-12-06
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公开(公告)号： EP1829842A1公开(公告)日： 2007-09-05
- 发明人: OKAMATSU, Toshihiro, MURATA MANUFACTURING CO. LTD. , HIRAMATSU, Takashi, MURATA MANUFACTURING CO. LTD. , SANO, Harunobu, MURATA MANUFACTURING CO., LTD.
- 申请人： MURATA MANUFACTURING CO., LTD.
- 申请人地址： 10-1, Higashikotari 1-chome Nagaokakyo-shi, Kyoto 617-8555 JP
- 专利权人： MURATA MANUFACTURING CO., LTD.
- 当前专利权人： MURATA MANUFACTURING CO., LTD.
- 当前专利权人地址： 10-1, Higashikotari 1-chome Nagaokakyo-shi, Kyoto 617-8555 JP
- 代理机构： Herrmann, Uwe
- 优先权： JP2004373168 20041224
- 国际公布： WO2006067958 20060629
- 主分类号： C04B35/468
- IPC分类号： C04B35/468 ; H01B3/12 ; H01G4/12
摘要：
A dielectric ceramic is provided having a high relative dielectric constant, and in the case in which it is used for a multilayer ceramic capacitor (1), even when the thickness of a dielectric ceramic layer (3) is decreased, high insulating properties and superior reliability can be obtained.
The dielectric ceramic has a composition represented by 100(Ba 1-w-x-m Ca w Sr x Gd m ) k (Ti 1-y-z-n Zr y Hf z Mg n ) 0 3+a + pMnO 2 + qSiO 2 + rCuO, and is used for forming the dielectric ceramic layer (3) of a multilayer ceramic capacitor 1. However, 0.995≤k≤1.010, 0≤w
The dielectric ceramic has a composition represented by 100(Ba 1-w-x-m Ca w Sr x Gd m ) k (Ti 1-y-z-n Zr y Hf z Mg n ) 0 3+a + pMnO 2 + qSiO 2 + rCuO, and is used for forming the dielectric ceramic layer (3) of a multilayer ceramic capacitor 1. However, 0.995≤k≤1.010, 0≤w
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