Patent ID: 6743534
Filing Date: 2004-06-01
Classification: B32B,C03C,C04B,H01F,H01L,H05K,Y10T

Abstract:
A monolithic green body tape having an x-y plane and a thickness in a z-direction for use in low temperature ceramic co-firing, comprising:at least one low temperature ceramic layer containing particles of a first ceramic, a first glass, and a first organic binder; and at least one self-constraining layer containing particles of a refractory ceramic, a wetting agent for the first glass, and a second organic binder; wherein the refractory ceramic will not sinter at a sintering temperature of the low temperature ceramic layer, such that upon firing of the green body tape at the sintering temperature of the low temperature ceramic, the layers densify in the z direction but shrinkage in the x-y plane is less than about 1% without application of an external constraint.