Optoelectric memories with photoconductive thin films

Details Optoelectric memories with photoconductive thin films Optoelectric memories with photoconductive thin films

1994-07-05

1995-06-13

Popek, Joseph A.

Static information storage and retrieval

Radiant energy

Photoconductive

365109, 365110, 365113, 365119, G11C 1142

Patent

active

054249740

ABSTRACT:
Methods and apparatii are described for information storage in photoconductive film of single layer composition by irradiation of memory elements simultaneously with application of an electric field. Information is stored as trapped charge accumulations in the film when the irradiation is removed, but trapped charge can be released by subsequent irradiation. Repeated information storage, followed by erasure, returns the films to their original state without degradation.

REFERENCES:
patent: 5128983 (1992-07-01), Takamashi et al.
patent: 5179533 (1993-01-01), Bullington et al.
patent: 5182724 (1993-01-01), Yanagisawa et al.
patent: 5327373 (1994-07-01), Liu et al.

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