Chips that erase data on their own use a new material.They're temporarily accumulating energy,
"It's very difficult to tell if a device has been compromised. It may work fine, but it does more than it should, sending information to a third party," he explainsParag Deotar, Assistant Professor of Electrical Engineering and Computer Science , University of Michigan.
With a self-destructing barcode printed on a chip inside the device, the wearer receivesclue if the mechanism has been tampered with to secretly install a listening device.be written and placed on integrated circuits or printed circuit boards.This will help to prove that they were not opened or replaced during transport.
Self-erasing chips are built from a layera semiconductor three atoms thick on top of a thin film of azobenzenes-based molecules - the type of molecules that shrink in response to ultraviolet light. These, in turn, attract the semiconductor, causing it to emit light at a slightly longer wavelength.
The stretched azobenzene naturally losesstored energy for about seven days in the dark - a time that can be reduced by exposure to heat and light, or increased by storage in a cool, dark place. Anything written on the chip, be it an authentication barcode or a secret message, will disappear when the azobenzene stops stretching the semiconductor. Alternatively, it can be erased immediately using a flash of blue light. After erasing, the chip can write a new message or barcode.
The next steps in the research include increasing the amount of time the material can keep the information intact, which will help the new design fight counterfeiting.
Read also
The Doomsday glacier turned out to be more dangerous than scientists thought. We tell the main thing
GitHub has replaced the term "master" with a neutral equivalent
Two pieces of evidence of extraterrestrial life emerged at once. One on Venus, the other - no one knows where