Device for neutralizing the access to an integrated-circuit zone

Details Device for neutralizing the access to an integrated-circuit zone Device for neutralizing the access to an integrated-circuit zone

1988-12-05

1989-07-25

Carroll, J.

357 52, 357 59, 357 74, H01L 2702, H01L 2934, H01L 2904

Patent

active

048518948

ABSTRACT:
A device for neutralizing the access to an integrated-circuit zone to be protected. A fuse section providing a connection between an access terminal and an integrated circuit zone to be protected is connected by means of the fuse end portion located nearest the zone to be protected to a junction obtained at the intersection of a layer of a conductivity type opposite to the conductivity type in which the substrate of the integrated circuit is formed. This junction is reverse-biased during normal utilization of the circuit and forward-biased only when it is desired to melt the fuse, thus making the zone to be protected irreversibly inaccessible.

REFERENCES:
patent: 4017888 (1977-04-01), Christie et al.
patent: 4045310 (1977-08-01), Jones et al.
patent: 4105156 (1978-08-01), Dethloff
patent: 4210875 (1980-07-01), Beasom
patent: 4268911 (1981-05-01), Bell
patent: 4413272 (1983-11-01), Mochizuki et al.
patent: 4434361 (1984-02-01), Meinguss et al.
patent: 4446475 (1984-05-01), Gercekci et al.
patent: 4628590 (1986-12-01), Udo et al.
patent: 4723155 (1988-02-01), Uchida

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