发明名称 |
ACCESS NEUTRALIZATION DEVICE TO PROTECT AN INTEGRATED-CIRCUIT ZONE |
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. |
申请公布号 |
DE3570015(D1) |
申请公布日期 |
1989.06.08 |
申请号 |
DE19853570015 |
申请日期 |
1985.08.06 |
申请人 |
SGS-THOMSON MICROELECTRONICS S.A. |
发明人 |
SILVESTRE DE FERRON, GERARD;GAULTIER, JEAN-MARIE |
分类号 |
G06K19/073;H01L23/58;(IPC1-7):H01L23/56;G06K19/06 |
主分类号 |
G06K19/073 |
代理机构 |
|
代理人 |
|
主权项 |
|
地址 |
|