Patent ID: 6322718
Filing Date: 2001-11-27
Classification: C04B,H01L

Abstract:
A piezoelectric ceramic composition comprising:a first component represented by the general formula:Pb(Zr.sub.x Ti.sub.1-x)O.sub.3 +y wt % MnO.sub.2in which x is a mole percentage and y is a weight percentage and wherein x is within a range from 0.0 to about 1.0, andy is within a range from about 0.1 to about 1.0; anda second component represented by the general formula:w wt % Bi.sub.2 O.sub.3 -z wt % CdOin which w and z represent weight percentages and wherein w is within a range from about 0.1 to about 1.0, and z is within a range from about 0.1 to about 2.0.