CONDUCTIVE COMPOSITION CONTAINING IOLITE AND GLASS

摘要

A ceramic composition for forming a ceramic dielectric body having a dielectric constant of less than about 4.6. The composition comprises a mixture of finely divided particles of 35-55 vol.% borosilicate glass and 45-65 vol.% cordierite. The exact particle size ratio of the cordierite to borosilicate glass that is used will depend on the proportions of the components, the desired fired density and the firing temperature. 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.