Scientists created a tiny matrix that stores data by etching its grid into a thin ceramic film with a focused ion beam.

The smallest QR code in the world is so very tiny that your phone would need an electron microscope to scan it. The matrix ...

QR codes, originally developed as two-dimensional matrix barcodes for rapid data acquisition, have undergone significant transformation and expansion in application. Their evolution from simple ...

Is it a printing error? A pixilated maze? One of those puzzles where you have to cross your eyes to see the hidden image? Two-dimensional matrix bar codes are expanding into the mainstream. You can ...