Glass ceramic dielectric compositions
AssigneeE. I. Du Pont de Nemours and Company
InventorKumaran M. Nair
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Abstract
The invention is directed to thick film crossover dielectric compositions in which the dielectric is an amorphous aluminoborosilicate glass which upon firing forms a single phase of celsian in a matrix of amorphous remainder glass.
Claims2
An amorphous aluminoborosilicate glass frit which is crystallizable at thick film processing conditions to form a single phase of celsian in a matrix of remainder glass the amorphous glass consisting essentially by weight of 30% SiO.sub.2, 8% TiO.sub.2, ZrO.sub.2 or mixtures thereof, 10% Al.sub.2 O.sub.3, 10% BaO, 10% ZnO, 24% CaO and 8% B.sub.2 O.sub.3.
A printable thick film dielectric composition consisting essentially of (a) finely divided particles of an amorphous aluminoborosilicate glass which is crystallizable at Thick Film Processing Conditions to form a single phase of celsian in a matrix of remainder glass dispersed in (b) organic medium, the glass consisting essentially by weight of 30%, SiO.sub.2, 8% TiO.sub.2, ZrO.sub.2 or mixtures thereof, 10% Al.sub.2 O.sub.3, 10% BaO, 10% ZnO, 24% CaO and 8% B.sub.2 O.sub.3.
Dependencies are inferred from the claim text.