Low-fire high-permittivity dielecric compositions

Details Low-fire high-permittivity dielecric compositions Low-fire high-permittivity dielecric compositions

2006-08-08

2006-08-08

Group, Karl (Department: 1755)

Compositions: ceramic

Ceramic compositions

Titanate, zirconate, stannate, niobate, or tantalate or...

Reexamination Certificate

active

07087545

ABSTRACT:
A dielectric composition that can be fired at a temperature of below 900° C. The dielectric composition has a dielectric constant of 25–35 and a quality factor (Qxf) of 6,000–20,000 GHz. The composition comprises 3–16 wt % of K2O—Na2O—Li2O—B2O3—SiO2system glass frit and 84–97 wt % of BaO—TiO2system dielectric ceramics. The composition can be effectively applied to construct a part of a ceramic multi-layer packaging as a resonator form such as a filter or an antenna, etc.

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Materials Research Bulletin 35 (2000) 2445-2456, Low Temperature Sintering and Microwave Dielectric Properties of Ba2Ti9O20Ceramics Using Glass Additions.
Journal of the European Ceramic Society 20 (2000) 1061-1067, Sintering BaTi4O9/Ba2Ti9O20-based ceramics by glass addition.

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