US 6,982,864 B1
Copper termination inks containing lead free and cadmium free glasses for capacitors
Srinivasan Sridharan, Strongsville, Ohio (US); Umesh Kumar, Carlsbad, Ohio (US); and Chandrashekhar S. Khadilkar, Broadview Heights, Ohio (US)
Assigned to Ferro Corporation, Cleveland, Ohio (US)
Filed on Jun. 09, 2004, as Appl. No. 10/864,309.
Int. Cl. H01G 4/06 (2006.01)
U.S. Cl. 361—321.1 22 Claims
OG exemplary drawing
 
1. A capacitor comprising a copper termination, said copper termination made by firing a lead-free and cadmium-free ink including a glass component, said glass component comprising:
a. up to about 65 mole % ZnO;
b. about 0.1 to about 61 mole % B2O3;
c. about 0.1 to about 63 mole % SiO2; and
d. wherein the ratio of B2O3 to SiO2 is from about 0.7 to about 5.