Tamper-evident/tamper-resistant electronic components

Details Tamper-evident/tamper-resistant electronic components Tamper-evident/tamper-resistant electronic components

2006-06-20

2006-06-20

Song, Hosuk (Department: 2134)

Electrical computers and digital processing systems: support

Data processing protection using cryptography

Tamper resistant

C726S034000

Reexamination Certificate

active

07065656

ABSTRACT:
A tamper evident electronic module comprises an electronic component, a tamper evident sheet, and encapsulant material. Said component is encapsulated in the encapsulant material and the sheet overlies the component, and the sheet comprises a flexible multi-layer sheet, a plurality of the layers of the sheet being selected from the group below:(i) an electromagnetic radiation shield layer;(ii) a tell-tale electrically conductive trip wire defining a convoluted meandering pathway on the layer, the trip wire meandering in a pattern which substantially covers the electronic component in a space filled area if the layer;(iii) a layer having the features of (ii), and in which the pathway comprises a fractual pattern;(iv) a layer having the features of (ii), and in which a second tell-tale trip wire extends alongside a first tell-tale trip wire so that they meander as a spaced pair.(v) an active electromagnetic marking layer adapted to emitt electromagnetic radiation.

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