发明授权
US06243254B1 Dielectric ceramic composition and laminated ceramic capacitor using the same
有权
介电陶瓷组合物和使用其的层压陶瓷电容器
- 专利标题： Dielectric ceramic composition and laminated ceramic capacitor using the same
- 专利标题（中）： 介电陶瓷组合物和使用其的层压陶瓷电容器
-
申请号： US09369988申请日： 1999-08-06
-
公开(公告)号： US06243254B1公开(公告)日： 2001-06-05
- 发明人: Nobuyuki Wada , Masamitsu Shibata , Takashi Hiramatsu , Yukio Hamaji
- 申请人： Nobuyuki Wada , Masamitsu Shibata , Takashi Hiramatsu , Yukio Hamaji
- 优先权： JP10-227202 19980811; JP10-227203 19980811
- 主分类号： H01G406
- IPC分类号： H01G406
摘要：
Provided is a highly reliable laminated ceramic capacitor in which decrease of dielectric constant under a high electric field is small and which satisfies the B-grade and X7R grade characteristics, using Ni for the inner electrodes, wherein the dielectric material contains about 0.2 to 5.0 parts by weight of Li2O—(Si, Ti)2—MO oxides (MO is at least one of the compounds of Al2O3 and ZrO2) or SiO2—TiO2—XO oxides (XO is at least one of the compounds of BaO, CaO, SrO, MgO, ZnO and MnO) relative to 100 parts by weight of a principal component represented by (Ba1−xCaxO)mTiO2+&agr;Re2O3+&bgr;MgO+&ggr;MnO (Re2O3 represents at least one of Y2O3, Gd2O3, Tb2O3, Dy2O3, Ho2O3, Er2O3 and Yb2O3).