Abstract A frit capacitor of either the discrete or integrated microcircuit variety having a ferroelectric glass-ceramic dielectric whose dielectric constant is of intermediate value between about 20 and 400. The desired value of dielectric constant is accurately obtained in a readily reproducible manner by mixing a batch containing appropriate quantities of stable non-crystallizable glass partials and glass particles capable of forming a ferroelectric crystal phase. The desired dielectric constant is obtained by subjecting the batch to heat treatment. By controlling the weight ratio of the two glass components during the batch preparation, individual capacitor dielectrics having different dielectric constants can be provided utilizing the same firing schedule for each.
The capacitor of claim 1 wherein the dielectric constant of said stable glass is less than about 20.
Claim 2
Dependent Claim
18 words
The capacitor of claim 1 wherein the dielectric constant of said material is between about 20 and 400.
Claim 3
Dependent Claim
78 words
A unitary structure of electrical circuit elements comprising a plurality of frit capacitors, each of said capacitors comprising a plurality of spaced electrically conductive plates, and a dielectric material interposed between said plates consisting essentially of a substantially non-alkaline stable glass characterized by a low value of dielectric constant and a partially crystallized ferroelectric glass-ceramic substance, the dielectric constant of said material being intermediate that of said stable glass and glass-ceramic substance, and mounting means for said elements.
Claim 4
Dependent Claim
18 words
The structure of claim 4 wherein at least two of said capacitors have different values of dielectric constant.
Claim 5
Dependent Claim
18 words
The structure of claim 4 wherein the dielectric constant of said stable glass is less than about 20.
Claim 6
Dependent Claim
18 words
The structure of claim 4 wherein the dielectric constant of said material is between about 20 and 400.