SCALLER: Standard Cell Assembled and Local Layout Effect-based Ring Oscillators
<|reference_start|>SCALLER: Standard Cell Assembled and Local Layout Effect-based Ring Oscillators: 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<|reference_end|>
@article{aljafar2024scaller:,
    title={SCALLER: Standard Cell Assembled and Local Layout Effect-based Ring
  Oscillators},
    author={Muayad J. Aljafar, Zain Ul Abideen, Adriaan Peetermans, Benedikt
  Gierlichs, Samuel Pagliarini},
    journal={arXiv preprint arXiv:2406.01258},
    year={2024},
    archivePrefix={arXiv},
    eprint={2406.01258},
    primaryClass={cs.CR}
}