Patent ID: 6645895
Filing Date: 2003-11-11
Classification: B32B,C01G,C01P,C04B,H01G

Abstract:
A method of producing a dielectric ceramic composition comprising:a main component expressed by a composition formula of {(Sr1-xCax)O}m. (Ti1-yZry)O2 wherein the mole ratio m satisfies 0.94a supplementary component including an oxide of R, where R is at least one selected from Sc, Y, La, Ce, Pr, Nd, Pm, Sm, Eu, Gd, Tb, Dy, Ho, Er, Tm, Yb and Lu; the method comprising producing the dielectric ceramic composition by using a composition source material wherein at least a part of a supplementary component source material for the supplementary component is brought to react in advance with a main component source material for the main component, the main component source material being expressed by a composition formula of {(Sr1-xCax)O}m. Ti1-yZry)O2 wherein the mole ratio mâ€² with respect to the mole ratio m of the final composition satisfies mâ€²m.