Core-shell particles for anti-tampering applications
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United States of America Patent
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Jan 2, 2018
Issued Date -
N/A
app pub date -
Dec 13, 2016
filing date -
Dec 13, 2016
priority date (Note) -
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Abstract
Devices and methods for resisting or preventing physical tampering of electronic components are described. A tamper resistant apparatus comprises a tampering sensor having a surface at which a first and second conductive portion are disposed. A core-shell particle (or a plurality of particles) is disposed on the surface of the tampering sensor. The core-shell particle has a liquid metallic core and a shell surrounding the core. When tampering occurs, forces associated with the tampering cause the core-shell particle to rupture. The released liquid metallic core material can form a conductive pathway between the first and second conductive portions of the tampering sensor. The tampering sensor triggers a security response when the first and second conductive portions are electrically connected to each other by the metallic material from the ruptured core-shell particle(s).
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