Carbon Nanotube Network Transistor for a Physical Unclonable Functions-based Security Device

Physical unclonable functions (PUFs) based on 99% semiconducting carbon nanotube (CNT) network transistors are demonstrated. We experimentally verified the possibilities of a PUF based on the CNT network transistors with the unpredictable and high randomness of the CNT-percolated network. The Hamming distance (HD) and Hamming weight (HW), which are important PUF parameters, were calculated to evaluate the uniqueness and assess the uniformity of the CNT-based PUF devices.