SCALLER: Standard Cell Assembled and Local Layout Effect-based Ring Oscillators
Cryptography and Security
2024-06-04 v1
Abstract
This letter presents a technique that enables very fine tunability of the frequency of Ring Oscillators (ROs). Multiple ROs with different numbers of tunable elements were designed and fabricated in a 65nm CMOS technology. A tunable element consists of two inverters under different local layout effects (LLEs) and a multiplexer. LLEs impact the transient response of inverters deterministically and allow to establish a fine tunable mechanism even in the presence of large process variation. The entire RO is digital and its layout is standard-cell compatible. We demonstrate the tunability of multi-stage ROs with post-silicon measurements of oscillation frequencies in the range of 80-900MHz and tuning steps of 90KHz
Keywords
Cite
@article{arxiv.2406.01258,
title = {SCALLER: Standard Cell Assembled and Local Layout Effect-based Ring Oscillators},
author = {Muayad J. Aljafar and Zain Ul Abideen and Adriaan Peetermans and Benedikt Gierlichs and Samuel Pagliarini},
journal= {arXiv preprint arXiv:2406.01258},
year = {2024}
}
Comments
Accepted IEEE ESL