发明名称 MULTILAYER CERAMIC CAPACITOR AND METHOD FOR PRODUCTION THEREOF
摘要 Disclosed is a multilayer ceramic capacitor which has a dielectric ceramic having a dielectric layer, wherein the dielectric layer mainly comprises barium titanate, contains a crystalline particle having an average crystal diameter of 0.15 to 0.3 mum, and contains Mg in an amount of 0.5 to 2 parts by mol in terms of MgO, Mn in an amount of 0.2 to 0.5 part by mol in terms of MnO, and a first rare earth element (RE) selected from Ho, Y, Er, Tm, Yb and Lu and a second rare earth element (RE) selected from Sm, Eu, Gd, Tb and Dy in a total amount of 0.7 to 3 parts by mol in terms of RE2O3 relative to 100 parts by mol of barium titanate, the crystalline particle contains the first rare earth element and the second rare earth element in such a manner that the amount of the first rare earth element is larger than that of the second rare earth element, and the density gradients of the first rare earth element and the second rare earth element in the crystalline particle as determined from the particle boundary toward the center of the crystalline particle are-0.005 to-0.05 atm%/nm and-0.0005 to-0.005 atm%/nm, respectively. Also disclosed is a method for producing the multilayer ceramic capacitor.
申请公布号 KR20090011028(A) 申请公布日期 2009.01.30
申请号 KR20087030364 申请日期 2007.09.27
申请人 KYOCERA CORPORATION 发明人 YAMAZAKI YOUICHI
分类号 H01G4/12;H01G4/30 主分类号 H01G4/12
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