Electrical capacitors

Claim 1

IN AN ELECTRICAL CAPACITOR COMPRISING A CERAMIC SUBSTRATE, A BASE ELECTRODE COMPRISING A LAYER OF FINELY DIVIDED PRECIOUS METAL, A FIRST LAYER OF GLASS ADHERING SAID BASE ELECTRODE TO SA D SUBSTRATE, A LAYER OF GLAS-CERAMIC HIGH PERMITTIVITY DIELECTRIC COMPRISING A FINE DISPERSION OF HIGH PERMITTIVITY FERROELECTRIC CRYSTALS THROUGHOUT SAID LAYER, A TOP ELECTRODE COMPRISING A LAYER OF FINELY DIVIDED PRECIOUS METAL AND A SECOND LAYER OF GLASS ADHERING SAID TOP ELECTRODE TO SAID LAYER OF DIELECTRIC, T HE IMPROVEMENT WHICH COMPRISES SAID SECOND LAYER OF GLASSHAVING THE ABILITY TO SOFTEN IN THE TEMPERATURE RANGE 700*-850*C AND ON FURTHER HEATING TO RE-CRYSTALLIZE AT TEMPERATURES BELOW 1.000*C OF COMPOSITIONS SELECTED FROM THE GROUP CONSISTING OF A. 45.4% NB205, 8.9% SIO2, 13.8% BAO, 19.6% PBO, 7.9% SRO, 1% AL2O3 AND 3.5% B2O3. B. 45. 4% NB2O5, 4.4% SIO2, 13.8% BAO, 19.6% PBO, 7.9% SRO, 1% AL2O3. 8.0% B2O3, C. 45.5% NB2O5, 8.9% SIO2, 13.8% BAO, 19.M% PBO, 7.9% SRO AND 4.2% B2O3, D. 62.2% NB2O5, 9.7% NA2O, 10% CDO, 6% TIO2 AND 12% SIO2, E. 60.7% NB2O5, 9.4% NA2O, 9.6% CDO, 12% SIO2 AND 8.3% TA2O5, F. 44% NB2O5, 8.6% SIO2, 16.1% BAO, 23.1% PBO, 3.8% SRO, 1% AI2O3 AND 3.4% B2O3, G. 45.2 NB2O5, 8.8% SIO2, 8% BAO, 23.8% PBO, 9.8% SRO, 1% AI2O3 AND 3.5% B2O3, H. 47.1% NB2O5, 9.2% SIO2, 17.3% BAO, 11,6% PBO, 10.2% SRO, 1% AI2O3 AND 3.6% B2O3, THE STATED PERCEN T AGES BEING THE APPROXIMATE PERCENT BY WEIGHT OF THE LISTED INGREDIENTS IN SAID SECOND LAYER OF GLASS.