Optoelectronic dynamic random access memory system

Details Optoelectronic dynamic random access memory system Optoelectronic dynamic random access memory system

1986-06-04

1988-12-06

Moffitt, James W.

Static information storage and retrieval

Radiant energy

Semiconductive

365222, G11C 1142

Patent

active

047899646

ABSTRACT:
A memory device employing optoelectronic elements which in combination form a dynamic RAM, the elements comprising first and second photodiodes electrically connected for exchange of a reverse bias condition from one photodiode to the other when either one is exposed to light to cause a photocurrent to flow, thereby to define logical `0` and `1` states, and an optical switch such as a MOS structure connected in parallel with one of the photodiodes so as to be rendered light transmissive in only one of the reverse bias conditions, thereby to detect the logical state of the cell when exposed to incident light.

REFERENCES:
patent: 3860915 (1975-01-01), Geier et al.

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