Cambridge GaN Devices Ltd (CGD) — which was spun out of the University of Cambridge Department of Engineering’s Electrical Power and Energy Conversion group in 2016 and designs, develops and commercializes power transistors and ICs that use GaN-on-silicon substrates — claims to be first to incorporate an individual 2D barcode on a gallium nitride (GaN) IC, which can be read by a standard, commercial code reader. This not only enables CGD to scan packaged devices and identify the circuit and the batch but also to learn exactly where on the wafer each individual die was made, providing vital data concerning process ruggedness and reliability...
Source: https://www.semiconductor-today.com/new ... 0923.shtml