Patent ID: 6815224
Filing Date: 2004-11-09
Classification: H01L

Abstract:
A method for producing ferroelectric SrxBiyTa2O9 (SBT) or SrxBiy (Ta, Nb)2O9 (SBTN), which comprises:depositing SrxBiyTa2O9 (SBT) or SrxBiy (Ta, Nb)2O9 (SBTN) on a substrate, where 0.7&lE;x&lE;1 and 2.4&lE;y&lE;3.0; and performing a heat treatment step at a temperature T1 being less than 660Â° C., until the SrxBiyTa2O9 (SBT) or the SrxBiy(Ta, Nb)2O9 (SBTN) has adopted a ferroelectric phase.