Patent ID: 6117572
Filing Date: 2000-09-12
Classification: C01G,C01P,C23C,H01L

Abstract:
A dielectric substrate of the formula Ca.sub.2 AlSbO.sub.6, comprising:said dielectric substrate having a dielectric constant of 9.5;said dielectric substrate being sintered between 1400.degree. and 1550.degree. C. or 20-60 hours;said dielectric substrate having a loss tangent of 6.0.times.10.sup.-3 and being lattice matched to a high critical temperature superconductor film;said general formula including an Sb.sup.+5 constituent atom having a polarizability of about 1.18 .ANG..sup.3 ;said dielectric substrate providing a cubic perovskite structure; andsaid dielectric substrate having a thin film structure.