Patent ID: 11935843
Assignee: ARIZONA BOARD OF REGENTS ON BEHALF OF ARIZONA STATE UNIVERSITY
Field: Semiconductors (Electrical engineering)
Classification: CPC H  G | IPC H

Claim 0:
1. A system for physical unclonable function (“PUF”) generation, the system comprising:
a plurality of PUF devices, each of the plurality of PUF devices including:
a first electrochemically-inactive electrode,
a second electrochemically-inactive electrode, and

a layer of silicon suboxide (SiOx) positioned directly between the first electrochemically-inactive electrode and the second electrochemically-inactive electrode; and
an electronic controller communicably coupled to the plurality of PUF devices and configured to read binary values associated with the plurality of PUF devices,
wherein the x in the layer of SiOx is less than 2,
wherein each of the plurality of PUF devices is between 2 μm and 10 μm in diameter,.
the first electrochemically-inactive electrode comprising at least one selected from the group consisting of tungsten, nickel, platinum, titanium nitride, tantalum nitride, titanium tungsten, silicon, and polycrystalline silicon; and
the second electrochemically-inactive electrode comprising at least one selected from the group consisting of tungsten, nickel, platinum, titanium nitride, tantalum nitride, titanium tungsten, silicon, and polycrystalline silicon.