| 摘要 |
A production method of a dielectric ceramic composition comprising a main component including barium titanate expressed by a composition formula of Ba<SUB>m</SUB>TiO<SUB>2+m</SUB>, wherein "m" satisfies 0.990<m<1.010, a fourth subcomponent including an oxide of R (note that R is at least one selected from Y, La, Ce, Pr, Nd, Pm, Sm, Eu, Gd, Tb, Dy, Ho, Er, Tm, Yb and Lu), and other subcomponent including at least BaO; comprising steps of preparing a post-reaction material by bringing a material of said main component to react in advance with at least a part of a material of said fourth subcomponent, wherein, when an amount of BaO included in said other subcomponent is n mole with respect to 100 moles of said main component, and said main component and said BaO are expressed by a composition formula of Ba<SUB>m+n/100</SUB>TiO<SUB>2+m+n/100</SUB>, wherein "m" and "n" satisfy 0.994<m+n/100<1.014; by which a dielectric ceramic composition capable of improving the specific permittivity without deteriorating the capacity-temperature characteristic, IR and IR accelerated lifetime, etc. and the production method can be provided.
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