发明名称 |
Device for neutralizing the access to an integrated-circuit zone to be protected |
摘要 |
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.
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申请公布号 |
US4851894(A) |
申请公布日期 |
1989.07.25 |
申请号 |
US19880282957 |
申请日期 |
1988.12.05 |
申请人 |
EUROTECHNIQUE |
发明人 |
DE FERRON, GERARD S.;GAULTIER, JEAN MARIE |
分类号 |
G06K19/073;H01L23/58 |
主分类号 |
G06K19/073 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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