TU Wien and Cerabyte Create World's Smallest QR Code

Researchers at TU Wien, in collaboration with Cerabyte, have achieved a Guinness World Record for creating the world's smallest QR code, measuring just 1.977 µm². This microscopic code, etched into a thin ceramic film using focused ion beams, is invisible to optical microscopes and can only be read with an electron microscope. The achievement is not merely a novelty but a significant advancement in developing ultra-long-life data storage technology. Unlike traditional magnetic or electronic storage, which degrades over decades, this ceramic-based system is designed to withstand extreme conditions and preserve information for centuries or millennia without continuous energy input. The technology offers a potential solution for archiving critical information, reducing the environmental impact of data centers, and ensuring the longevity of digital knowledge. The team aims to further optimize storage density, writing speeds, and explore other data structures for industrial applications.