Process of storing analog quantities and device for the implemen

Details Process of storing analog quantities and device for the implemen Process of storing analog quantities and device for the implemen

1992-11-05

1993-08-24

Clawson, Jr., Joseph E.

Static information storage and retrieval

Analog storage systems

365185, 257321, G11C 2700

Patent

active

052395006

ABSTRACT:
The process according to the invention is applicable to a non-volatile memory cell with an MOS transistor structure with an insulated floating gate, a control electrode coupled capacitively to the floating gate and an injection zone separated from the floating gate by an injection oxide and capable of injecting or extracting charges into or from the floating gate. The process is characterized in that the control electrode is subjected to an alternating voltage of decreasing amplitude and the injection zone is subjected to a voltage representing the quantity to be stored. The invention applies to the storage of analog quantities.

REFERENCES:
patent: 4057788 (1977-11-01), Sage
patent: 4181980 (1980-01-01), McCoy
patent: 4192014 (1980-03-01), Craycraft
patent: 4627027 (1986-12-01), Rai et al.
patent: 4931847 (1990-06-01), Corda
patent: 4979146 (1990-12-01), Yokoyama et al.
patent: 4982377 (1991-01-01), Iwasa
patent: 5017803 (1991-05-01), Yoshida

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