Patent ID: 6656863
Filing Date: 2003-12-02
Classification: C01G,C01P,C04B,H01G,Y10T

Abstract:
A dielectric ceramic composition having resistance to reduction comprising at least a main component containing a dielectric oxide of a composition expressed by {(Sr1-xCax)O}m.(Ti1-yZry)O2 anda supplementary component containing an oxide of R, where R is at least one element selected from Sc, Y, La, Ce, Pr, Nd, Pm, Sm, Eu, Gd, Tb, Dy, Ho, Er, Tm, Yb, and Lu, wherein the symbols m, x, and y showing the molar ratio of the composition in the formula contained in the main component are in relations of 0.940&lE;x1.00, and 0&lE;y&lE;0.20 and the ratio of the supplementary component with respect to 100 moles of the main component, which is converted to the R in the oxide, is 0.02 mole supplementary component<2 moles and having a thickness of 4 &mgr;m and under.