Document Type
Patent
Publication Date
May 2019
Patent Number
10302692
CPC
G01R 31/28
Abstract
Various devices, methods and systems are provided for aging-sensitive chip authentication. In one example, among others, a chip includes a reference Schmitt trigger ring oscillator (STRO) configured to enter a sleep mode during operation of the chip; a stressed STRO; a VDD charge pump configured to boost a positive voltage supplied to the stressed STRO during operation of the chip; and/or a GND charge pump configured to under-drive a ground voltage supplied to the stressed STRO during operation of the chip. In another example, a method includes detecting activation of a chip including a reference STRO and a stressed STRO and, in response to the activation of the chip, initiating sleep mode operation of the reference STRO. In response to the activation of the chip, a VDD voltage supplied to the stressed STRO can be boosted and/or a GND voltage supplied to the stressed STRO can be under-driven.
Application Number
16/014195
Recommended Citation
Ghosh, Swaroop and Lin, Cheng-Wei, "Aging-sensitive recycling sensors for chip authentication" (2019). USF Patents. 994.
https://digitalcommons.usf.edu/usf_patents/994
Assignees
University of South Florida
Filing Date
06/21/2018
