Optical memory with storage in three dimensions

Details Optical memory with storage in three dimensions Optical memory with storage in three dimensions

1977-08-15

1978-07-18

Fears, Terrell W.

Static information storage and retrieval

Radiant energy

Ferroelectric

365109, 358236, G11C 1142

Patent

active

041019750

ABSTRACT:
A high storage capacity, fast access time, photovoltaic ferroelectric mem apparatus including a plurality of memory planes which are stacked in a three dimensional configuration. Each plane is comprised of a photovoltaic ferroelectric layer and a photoconductive layer sandwiched between two electrodes. Writing of information is effected by illuminating a selected xy location on the planes while simultaneously applying a voltage pulse to a selected z plane, and reading is effected by illuminating a selected xy location while connecting a selected z plane to a read amplifier.

REFERENCES:
patent: 3693171 (1972-09-01), Asaw

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