Patent ID: 7176156
Filing Date: 2007-02-13
Classification: B32B,C04B,H01G

Abstract:
1. 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 V R SiO BaO+SrO+CaO is in an amount of 0.5 to 12 moles, in terms of MgO, MnO, Cr said main component ingredient before firing is barium titanate ingredient powder having the perovskite type crystal structure expressed by ABO