Dielectric porcelain composition, multilayer ceramic capacitor, and electronic component
AssigneeRohm Co., Ltd.
InventorsAkihiro Koga, Yukio Tominaga, Tetsuhiro Takahashi
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Abstract
A dielectric ceramic composition of the present invention includes 100 parts by mole of BaTiO3, x1 parts by mole of MnO, x2 parts by mole of Cr2O3, x3 parts by mole of Y2O3 and/or Ho2O3, x4 parts by mole of oxide selected from the group consisting of BaO, CaO and SrO, and x5 parts by mole of SiO2 and/or GeO2, where 0.5≦x1≦4.5, 0.05≦x2≦1.0, x1+x2≦4.55, 0.25≦x3≦1.5, 0.5 ≦x4≦6 and 0.5≦x5≦6. A multilayer ceramic capacitor of the present invention includes a laminated structure of a ceramic dielectric made of such a composition and an electrode made of Ni or Ni alloy.
Claims6
A dielectric ceramic composition comprising 100 parts by mole of BaTiO3, x1 parts by mole of MnO, x2 parts by mole of Cr2O3, x3 parts by mole of Y2O3 and/or Ho2O3, x4 parts by mole of oxide selected from the group consisting of BaO, CaO and SrO, and x5 parts by mole of SiO2 and/or GeO2,
- wherein 0.5≦x1≦4.5, 0.05≦x2≦1.0, x1+x2≦4.55, 0.25≦x3≦1.5, 0.5≦x4≦6 and 0.5≦x5≦6.
Dependencies are inferred from the claim text.