To resolve the disturbance problem of stored data being destroyed in a cross-point type FeRAM, which has prevented it from being put into practical use, we propose a novel access scheme for read-restore sequence. The unique point of this scheme is two restore sequences that are dynamically changed according to read-out data. Based on this scheme, the reduction of polarization induced by the disturbance is suppressed to be less than 17% after stress iteration of 109 times.
Published in:
VLSI Circuits, 2003. Digest of Technical Papers. 2003 Symposium on
Date of Conference: 12-14 June 2003