Picture 1 (IMAGE)

Singapore University of Technology and Design

Picture 1

Caption

Graphic of the new types of PUF that can be designed using the phase-change material (PCM), based on the reversible switching between the amorphous glassy state and orderly crystal state of a chalcogenide layer, along with sensing different as-deposited amorphous states, showing a large contrast in electrical and optical properties (top panel). Schematic of the product authentication concept (bottom panel).

Credit

Singapore University of Technology and Design

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