Semiconductor circuit, in particular for use in an integrated mo

Details Semiconductor circuit, in particular for use in an integrated mo Semiconductor circuit, in particular for use in an integrated mo

1999-02-23

2000-06-20

Elms, Richard T.

Static information storage and retrieval

Read/write circuit

Testing

365228, G11C 700

Patent

active

060785373

ABSTRACT:
A semiconductor circuit, in particular for use in an integrated module, has at least one operational assembly with a drive circuit, such as a microprocessor, and a data memory. The semiconductor circuit has at least one initialization assembly for testing and/or for initializing the operational assembly. A disconnectable connecting line connects the operational assembly to the initialization assembly. In order to increase reliability, the initialization assembly is permanently disconnected from the operational assembly, by disconnecting the connecting lines, after the semiconductor circuit has been completed. In order to make it more difficult to reactivate the disconnected connecting lines, the semiconductor circuit has a potential line connected to the initialization assembly and/or to the operational assembly in a region of the connecting line. The initialization assembly and/or the operational assembly are configured in such a way that, when the potential line is connected to the connecting line, the initialization assembly is placed in an inactive state.

REFERENCES:
patent: 4131942 (1978-12-01), Gillett et al.
patent: 4841133 (1989-06-01), Gercekci et al.
patent: 5369299 (1994-11-01), Byrne
patent: 5473112 (1995-12-01), Doi
patent: 5721837 (1998-02-01), Kikinis et al.
"Utilize Micro-Encapsulated Conductors to Provide a Tamper Awareness Enclosure for Sensitive Circuits", 2244 Research Disclosure, Dec. 1992, No. 344.

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