Patent ID: 7176156

Claim:
A production method of a dielectric ceramic composition having dielectric particles comprising: preparing a dielectric material including a main component ingredient and a subcomponent ingredient; and firing said dielectric material, wherein said subcomponent ingredient contains an oxide of Mg and/or a compound which becomes oxide of Mg after firing, at least one of oxides of Mn and Cr and/or compounds which become oxides of these after firing, one or more of oxides selected from V, W, Ta, and Nb and/or compounds which become oxides of these after firing, oxides of R (note that R is one or more selected from Sc, Er, Tm, Yb, Lu, Y, Dy, Ho, Tb, Gd, and Eu) and/or compounds which become the oxides of R after firing, an oxide of Si and/or a compound which becomes oxide of Si after firing, and at least two of oxides of Ba, Sr, and Ca and/or compounds which become oxides of these after firing; MgO is in an amount of 0.1 to 3 moles, MnO+Cr 2 O 3 is in an amount greater than 0 to 0.5 moles, V 2 O 5 +WO 3 +Ta 2 O 5 +Nb 2 O 5 is in an amount greater than 0 to 0.5 moles, R 2 O 3 is in an amount greater than 0 to 5 moles, SiO 2 is in an amount of 0.5 to 12 moles, and BaO+SrO+CaO is in an amount of 0.5 to 12 moles, in terms of MgO, MnO, Cr 2 O 3 , V 2 O 5 , WO 3 , Ta 2 O 5 , Nb 2 O 5 , R 2 O 3 , SiO 2 , BaO, SrO, and CaO with respect to 100 moles of the main component ingredient; and said main component ingredient before firing is barium titanate ingredient powder having the perovskite type crystal structure expressed by ABO 3 , and having a ratio A/B of A site components and B site components of 1.006≦A/B≦1.035 and a specific surface area of 15 to 50 m 2 /g.