Gallium-containing glassy low dielectric ceramic compositions

Details Gallium-containing glassy low dielectric ceramic compositions Gallium-containing glassy low dielectric ceramic compositions

1992-03-16

1993-07-13

Bell, Mark L.

Compositions: ceramic

Ceramic compositions

Glass compositions, compositions containing glass other than...

106 16, 106 18, 501 51, 501 52, C03G 3089

Patent

active

052269590

ABSTRACT:
A ceramic composition for forming a ceramic dielectric body having a dielectric constant of less than about 5.5 and a TCE of less than about 4.5 ppm/.degree. C. The composition comprises a mixture of finely divided particles of 25-50 vol. % borosilicate glass 40-75 vol. % silica glass and 1-40 wt. % of a material selected from the group consisting of Ga.sub.2 O.sub.3, Ga.sub.2 SiO.sub.5, Ga.sub.2 TiO.sub.5, GaAs, GaPO.sub.4 and any gallium-contained compounds to inhibit the formation of crystalline forms of silica. The composition can be used with a polymeric binder to produce an unfired green tape which is co-fireable with high conductivity metallurgies such as gold, silver and silver/palladium.

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