Patent ID: 8102223

Claim:
A dielectric ceramic composition comprising; as a main component, Cu oxide, Si oxide, Mg oxide and Zn oxide, as a subcomponent, a glass component including B oxide and at least one selected from the group consisting of Si oxide, Ba oxide, Ca oxide, Sr oxide, Li oxide and Zn oxide, and having a glass softening point is 750° C. or less, wherein; a content of said glass component is 1.5 to 15 wt % with respect to 100 wt % of said main component: the composition includes crystal phase comprising crystal structure of forsterite and willemite: and when said main component is shown by a general formula a ( b MgO. c ZnO. d CuO).SiO2, a is 1.5 to 2.4, c is 0.10 to 0.92, d is 0.02 to 0.18, wherein b+c+d=1.00 and b>0.