Patent ID: 7678724

Claim:
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 , wherein “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, wherein 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 said main component to two as a material of a first main component and a material of a second main component, obtaining a post-reaction material by bringing the material of said first main component to react with a part of a material of said fourth subcomponent to be included in said dielectric ceramic composition in advance of a step of firing, obtaining a material of said dielectric ceramic composition by adding the material of said second main component and rest of the material of said fourth subcomponent to be included in said dielectric ceramic composition into said post-reaction material, and firing said material of said dielectric ceramic composition, wherein, when number of moles of said first main component is n1 mole and number of moles of said second main component is n2, a ratio of said first main component to total number of moles of said first main component and said second main component is 0.75≦n1/(n1+n2)≦0.90.