Ferroelectric memory with multiple-value storage states

Details Ferroelectric memory with multiple-value storage states Ferroelectric memory with multiple-value storage states

1992-04-30

1994-03-01

LaRoche, Eugene R.

Static information storage and retrieval

Systems using particular element

Ferroelectric

365149, G11C 1122, G11C 1124

Patent

active

052914364

ABSTRACT:
A ferroelectric memory using ferroelectric capacitors, in which a plurality of electrodes are juxtaposed on each of the two sides of one ferroelectric substance, and the electric fields between the electrodes are controlled, so that more than two different amounts of charges are provided by the ferroelectric capacitors formed by the electrodes. Thereby, the quantity of storage per ferroelectric cell is increased without increase of the cell area.

REFERENCES:
patent: 4510516 (1985-04-01), Bartelink
patent: 4661929 (1987-04-01), Aoki et al.
patent: 4853893 (1989-08-01), Eaton, Jr. et al.
patent: 5189594 (1993-02-01), Hoshiba

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