Patent ID: 6072207
Filing Date: 2000-06-06
Classification: B05D,C23C,C30B,H01C,H01L,H05K

Abstract:
A ferroelectric device comprising:a pair of electrodes;a layered superlattice material compound interposed between said electrodes and having an average empirical formulaSr.sub.w [Bi.sub.4-2x+.alpha. {(Ta.sub.y,Nb.sub.1-y).sub.x,(Ti.sub.z,Zr.sub.1-z).sub.2-2x }.sub.2 O.sub.15-6x ].sub.c,wherein w, c, x, y, z, and .alpha. represent numbers corresponding to molar portions of formula substituents, 0.ltoreq.x.ltoreq.1.0, 0.ltoreq.y.ltoreq.1.0, 0.ltoreq.z.ltoreq.1.0, (x-2).ltoreq..alpha..ltoreq.1.6(2-x), 0.ltoreq.w.ltoreq.1.0, c.ltoreq.1.0, and (c.div.w).gtoreq.1.