Patent ID: 8298449
Filing Date: 2012-10-30
Classification: C03C,C04B,H01B,H01C,H01G,H01J

Abstract:
1. A dielectric composition comprising a dielectric and a conductive oxide, wherein (a) said dielectric is a solid solution comprised of about 1 to about 26 wt % SiO 2 , about 0.5 to about 6 wt % Al 2 O 3 , about 6 to about 24 wt % B 2 O 3 , about 2 to about 24 wt % ZnO, about 0.1 to about 5 wt % Na 2 O and about 20 to about 75 wt % Bi 2 O 3 and said dielectric is fireable in air at a temperature in the range of about 450° C. to about 550° C.; (b) said conductive oxide is selected from the group consisting of (i) tin-doped indium oxide, (ii) a transition metal oxide which has mixed valence states or will form mixed valence states after firing in a nitrogen atmosphere at a temperature in the range of about 450° C. to about 550° C., and (iii) conducting precious metal oxides; and the amount of said conductive oxide present is from about 0.25 wt % to about 25 wt % of the total weight of said dielectric and said conductive oxide.