Dielectric materials
AssigneeFerro Corporation
InventorsAziz S. Shaikh, Gordon J. Roberts, Gautam Sarkar
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Abstract
The present invention provides new and improved dielectric materials. In one preferred embodiment such novel dielectric material is formed by firing a composition including a glass composition comprising in weight percent from about 22% to about 45% ZnO, from about 4% to about 22% MgO, from about 1% to about 16% Al.sub.2 O.sub.3, from about 20% to about 49% SiO.sub.2, from about 2% to about 11% BaO, up to about 10% ZrO.sub.2, from about 0.05% to about 1.1% Fe.sub.2 O.sub.3 and from about 0.05% to about 0.95% PbO.
Claims7
An electronic thick film paste for use in producing a dielectric material which is suitable for use in conjunction with an aluminum nitride substrate, said paste comprising from about 50% by weight to about 95% by weight of a glass composition and from about 3% by weight to about 50% by weight of a vehicle, said glass composition comprising in weight percent from about 22% to about 45% ZnO, from about 4% to about 22% MgO, from about 1% to about 16% Al.sub.2 O.sub.3, from about 20% to about 49% SiO.sub.2, from about 2% to about 11% BaO, up to about 10% ZrO.sub.2, from about 0.05% to about 1.1% Fe.sub.2 O.sub.3 and from about 0.05% to about 0.95% PbO.
Dependencies are inferred from the claim text.