Crystal growth inhibitor for glassy low dielectric inorganic com

Details Crystal growth inhibitor for glassy low dielectric inorganic com Crystal growth inhibitor for glassy low dielectric inorganic com

1993-03-29

1993-10-26

Ryan, Patrick J.

Stock material or miscellaneous articles

Structurally defined web or sheet

Discontinuous or differential coating, impregnation or bond

428209, 428901, 428426, 428428, B32B 900

Patent

active

052564703

ABSTRACT:
A ceramic composition for forming a ceramic dielectric body having a dielectric constant of less than about 4.2 and a TCE of less than about 4.0 ppm/c. The composition comprises a mixture of finely divided particles of 25-50 vol. % borosilicate glass and 50-75 vol. % high silica glass and sufficient amounts of crystalline ceramic material 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.

REFERENCES:
patent: 4764233 (1988-08-01), Ogihara et al.
patent: 4788046 (1988-11-01), Barringer et al.
patent: 4849379 (1989-07-01), McCormick

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