Security device for the secure storage of sensitive data

Details Security device for the secure storage of sensitive data Security device for the secure storage of sensitive data

1984-12-21

1986-06-03

Fears, Terrell W.

Static information storage and retrieval

Powering

Data preservation

365218, 357 80, 3072021, 235487, 235492, G11C 700, H01L 3902, H02H 720, G06K 1900

Patent

active

045933847

ABSTRACT:
A device is disclosed for securely housing and protecting microelectronic circuitry in order to prevent external access to sensitive data stored therein. In a preferred embodiment of the invention, the device includes a ceramic housing which encases electronic circuitry. The ceramic housing is comprised of a plurality of individual parts selectively connected together, with each of the parts being comprised of a ceramic substrate and a plurality of ceramic layers disposed thereon. The electronic circuitry includes a memory for storing sensitive data therein and a tamper detection circuit. The tamper detection circuit includes a conductive path selectively provided through the plurality of ceramic layers of each of the plurality of individual parts and is responsive to any attempt to penetrate the ceramic housing which damages the conductive path for clearing the memory of any sensitive data stored therein. The tamper detection circuit further includes a low temperature sensing circuit which is responsive to a decrease in temperature in the ceramic housing below a preselected reference temperature for causing the tamper detection circuit to also clear the memory of any sensitive data stored therein.

REFERENCES:
patent: 3882323 (1975-05-01), Smolker

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