Patent ID: 7189673
Filing Date: 2007-03-13
Classification: C01G,C01P,C04B

Abstract:
1. A dielectric material consisting of (i) at least one of Ca and Sr; (ii) Ti, a portion of which is optionally substituted by Sn; (iii) Al, a portion of which is optionally substituted by a member selected from the group consisting of Ga, Y and Yb; (iv) at least one of Nb and Ta; (v) O; and (vi) optionally Mn wherein the elements (i) to (v) fulfill the following requirements when represented by a compositional formula, aM wherein M M 0.436<a≦0.500; 0.124<b≦0 325; 0.054<c≦0 150; and 0.170<d<0.346.