Fuse circuitry having physical fuse and non-volatile memory cell

Details Fuse circuitry having physical fuse and non-volatile memory cell Fuse circuitry having physical fuse and non-volatile memory cell

1993-10-26

1995-08-15

Popek, Joseph A.

Static information storage and retrieval

Read/write circuit

Having fuse element

365185, 365200, 365 96, 365104, G11C 1716

Patent

active

054425891

ABSTRACT:
A fuse circuit including: a physical fuse; a detection circuit for the detection of the state of the physical fuse; and an electrically programmable non-volatile memory cell associated with the physical fuse, programmed when the physical fuse is blown and connected to the detection circuit so that, when the electrically programmable non-volatile memory cell is programmed, the electrically programmable non-volatile memory cell confirms the blown state of the physical fuse even if the characteristics of the blown state of the physical fuse change with time.

REFERENCES:
patent: 4198696 (1980-04-01), Bertin et al.
patent: 4725980 (1988-02-01), Wakimoto et al.
patent: 5233566 (1993-08-01), Imamiya et al.
patent: 5247476 (1993-09-01), Kasa
patent: 5291139 (1994-03-01), Fruhauf et al.
patent: 5291434 (1994-03-01), Kowalski
patent: 5300840 (1994-04-01), Drouot

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