Electronically alterable diode logic circuit

Details Electronically alterable diode logic circuit Electronically alterable diode logic circuit

1976-08-16

1977-11-01

Yusko, Donald J.

Communications: electrical

Digital comparator systems

364716, 365191, 365195, G11C 1140

Patent

active

040568075

ABSTRACT:
A crosspoint (X-Y) matrix array of electrically reprogrammable memory logic elements, such as an array of dual dielectric insulated gate field effect transistor (IGFET) structures, is interconnected in a single electrically reprogrammable diode logic array circuit, both for computing the logic function(s) of many variables and for writing and erasing the function(s). Each logic element's high current path is in series with a separate unidirectional diode in order to prevent sneak paths. Electrical access circuitry is also provided for computing the logic function(s) of many variables, each funtion being electrically alterable.

REFERENCES:
patent: 3665423 (1972-05-01), Nakanuma et al.
patent: 3686644 (1972-08-01), Christensen
patent: 3728695 (1973-04-01), Frohman-Bentchkowsky
patent: 3760378 (1973-09-01), Burns
patent: 3818452 (1974-06-01), Greer
patent: 3875567 (1975-04-01), Yamazaki et al.
patent: 3877054 (1975-04-01), Boulin et al.
Nippon Electric Company, Limited Publication Feb. 1972, "256 Bit Programable Mas Rom," pp. 1-8.

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