Breakdown-based physical unclonable function
US10469083B2 · kind B2 · utility
Assignees
Inventors
Key dates
| Filing date | Jul 7, 2017 |
| Grant date | Nov 5, 2019 |
| Priority date | — |
| Expiry date | Jul 7, 2037 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH03K17/002
- WIPO fieldDigital communication
- WIPO sectorElectrical engineering
Abstract
A device and a method for implementing a physically unclonable function is disclosed. In one aspect, the device includes at least one electronic structure including a dielectric. A conductive path is formed at a random position through the dielectric due to an electrical breakdown of the dielectric, or the electronic structure is adapted for generating an electrical breakdown of the dielectric such that the conductive path is formed through the dielectric at a random position. The at least one electronic structure is adapted for determining a distinct value of a set comprising at least two predetermined values. The distinct value is determined by the position of the conductive path through the dielectric.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.