Journal of Research in VLSI Design Tools and Technology ISSN: 3139-2016 (Online)

Authors: Dharmendra Ray, Balram Pathak, Surabhi Chauhan, Baban Tiwari

Abstract: As semiconductor technology approaches the sub-nanometer (sub-nm) regime, ensuring reliable operation of integrated circuits (ICs) becomes increasingly challenging. Both timing and power integrity critically influence performance, yield, and reliability in advanced technology nodes. Sub-nm designs face heightened variability, increased leakage currents, and significant signal and power noise, making traditional analysis methods insufficient. This paper reviews state-of-the-art techniques in timing and power integrity analysis, highlighting challenges specific to sub-nm designs, methodologies for mitigation, and emerging trends in modeling, simulation, and validation. Furthermore, the paper discusses multi-objective approaches that balance power, performance, and area (PPA) while maintaining signal and power integrity. Finally, case studies, tools, and methodologies are examined to guide designers in practical sub-nm IC design workflows.

Keywords: Sub-nm VLSI, Timing Analysis, Power Integrity, Signal Integrity, EM/IR Analysis, Variation-Aware Design, Advanced Nodes