US Patent 9502356 Device and method with physical unclonable function

A physical unclonable function device, an encryptable electronic device, and a process for fabricating the physical unclonable function device are described. In an implementation, a physical unclonable function device includes an integrated circuit device including an active layer, the active layer including an electrode array with multiple electrodes; and a physical unclonable function coating disposed on the active layer, wherein the physical unclonable function coating includes a physical unclonable material arranged in a random configuration.