| abstract |
A production method of a dielectric ceramic composition comprising a main component including a compound having a perovskite-type crystal structure expressed by a general formula ABO 3 (note that "A" is Ba alone or a composite of Ba and Ca, and "B" is Ti alone or a composite of Ti and Zr), and 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); comprising steps of dividing a material of the main component to a first main component material and a second main component material, obtaining a post-reaction material by bringing the material of the first main component to react in advance with a part of the fourth subcomponent material to be included in the dielectric ceramic composition, and adding the material of the second main component and rest of the fourth subcomponent material to be included in the dielectric ceramic composition into the post-reaction material; wherein, when assuming that number of moles of the first main component is n1 mole and number of moles of the second main component is n2, a ratio of the first main component to total number of moles of the first main component and the second main component is 0.5 ≤ n1/(n1+n2) ≤ 1: by which preferable permittivity and a capacity-temperature characteristic can be obtained even when dielectric layers are made thin. |