Gallium crystal growth inhibitor for glassy low dielectric inorg

Details Gallium crystal growth inhibitor for glassy low dielectric inorg Gallium crystal growth inhibitor for glassy low dielectric inorg

1991-11-04

1993-01-05

Bell, Mark L.

Compositions: ceramic

Ceramic compositions

Glass compositions, compositions containing glass other than...

501 18, 501 21, 501 32, 501 66, 501 68, 501128, 501153, 501154, C03C 1400, C03C 814, C03C 802, C04B 3502

Patent

active

051770342

ABSTRACT:
A ceramic composition for forming a ceramic dielectric body having a dielectric constant of less than about 4.5 and a TCE of less than about 4.0 ppm/c. The composition comprises a mixture of 20-50 wt. % borosilicate glass 40-75 wt. % of a glass selected from the group consisting of glass containing 95-98 wt. % silica, titanium silicate glass and combinations thereof and sufficient amounts of gallium to inhibit the formation of crystalline forms of silica. The composition can be combined 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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M. B. Voif "Chemical Approach to Glass", Glass Science and Technology; vol. 7, Elsevier Science publishing Company, Inc., N.Y., 1984, p. 416.

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