Monolithic ceramic capacitor

Claim 1

A monolithic ceramic capacitor comprising a laminate of a plurality of dielectric ceramic layers, at least internal electrodes between adjacent dielectric ceramic layers in such a manner that one end of each internal electrode is exposed at different ends of the dielectric ceramic layer alternately, and a pair of external electrodes each electrically connected to different exposed internal electrodes, in which said dielectric ceramic layers comprise (a) barium titanate having an alkali metal oxide impurity content of not more than about 0.02% by weight, (b) at least one member selected from the group consisting of scandium oxide and yttrium oxide, (c) at least one member selected from the group consisting of gadolinium oxide, terbium oxide and dysprosium oxide, (d) manganese oxide, (e) cobalt oxide and (f) nickel oxide, and is a material containing (1) 100 mol of a main component represented by the compositional formula: (1-α-β){BaO}.sub.m •TiO.sub.2 +α{(1-x)M.sub.2 O.sub.3 +xRe.sub.2 O.sub.3 }+β(Mn.sub.1-y-z Ni.sub.y Co.sub.z)O wherein M 2 O 3 represents at least one member selected from the group consisting of Sc 2 O 3 and Y 2 O 3 ; Re 2 O 3 represents at least one member selected from the group consisting of Gd 2 O 3 , Tb 2 O 3 and Dy 2 O 3 ; 0.0025≦α≦0.025; 0.0025≦β≦0.05; β/α≦4; 0<x≦0.50; 0≦y≦1.0; 0≦z≦1.0; 0≦y+z<1.0; and 1.000<m≦1.035, (2) about 0.5 to 5.0 mol, in terms of MgO, of magnesium oxide and (3) about 0.2 to 3.0 parts by weight, per 100 parts by weight of the total weight of said main component (1) and said magnesium oxide (2), of SiO 2 -TiO 2 -MO-based oxide glass, wherein MO represents at least one member selected from the group consisting of BaO, CaO, SrO, MgO, ZnO and MnO.