Chai, Z, Wei, S, Zhang, WD, Brown, J, Degraeve, R, Salim, F, Clima, S, Hatem, F, Zhang, JF, Freitas, P, Marsland, J, Fantini, A, Garbin, D, Goux, L and Kar, G (2019) GeSe-based Ovonic Threshold Switching Volatile True Random Number Generator. IEEE Electron Device Letters. ISSN 0741-3106

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Abstract

In this paper, we propose and demonstrate a novel technique for true random number generator (TRNG) application using GeSe-based Ovonic threshold switching (OTS) selector devices. The inherent variability in OTS threshold voltage results in a bimodal distribution of on/off states which can be easily converted into digital bits. The experimental evaluation shows that the proposed TRNG enables the generation of high-quality random bits that passed 12 tests in the National Institute of Standards and Technology statistical test suite without complex external circuits for post-processing. The randomness is further evidenced by the prediction rate of ∼50% using machine learning algorithm. Compared with the TRNGs based on non-volatile memories, the volatile nature of OTS avoids the reset operation, thus further simplifying the operation and improving the generation frequency.

Item Type:	Article
Uncontrolled Keywords:	0906 Electrical and Electronic Engineering
Subjects:	T Technology > TK Electrical engineering. Electronics. Nuclear engineering
Divisions:	Electronics & Electrical Engineering (merged with Engineering 10 Aug 20)
Publisher:	IEEE
Date Deposited:	08 Jan 2020 09:46
Last Modified:	04 Sep 2021 08:13
DOI or ID number:	10.1109/LED.2019.2960947
URI:	https://researchonline.ljmu.ac.uk/id/eprint/11965

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