TechXplore.com December 7, 2020
When a voltage is applied an N type and a P type transistors perform computations. Right tools could clearly identify them—allowing you to go backwards, find out what each individual circuit component is doing and then reproduce the chip. A team of researchers in the US (Purdue University, University of Notre Dame) has shown that high-performance, low-voltage, two-dimensional black phosphorus FETs that have reconfigurable polarities are suitable for hardware security applications. Black phosphorus is so thin that it would enable electron and hole transport at a similar current level, making the two types of transistors appear more fundamentally the same. They have demonstrated the camouflaging abilities of black phosphorus-based transistors…read more. TECHNICAL ARTICLEÂ
The four transistors on this chip were built out of a 2D material that disguises them from hackers. Credit: Purdue University /John Underwood