Presentation
SigmaDVD: High Coverage Solution for Power Integrity Signoff
DescriptionSigmaDVD is a unique simulation method that provides complete power grid noise coverage for 100% of the design instances. This novel simulation technique generates tens of thousands of unique, physically and timing relevant switching scenarios for each instance independently, finding the statistically relevant worst case voltage drop or SigmaDVD value per instance. This analysis closes a known gap in power grid noise coverage available from other methods, such as vectorbased and vectorless simulations as well as BQM. The main considerations when comparing this new IR-Drop flow with other techniques are coverage (what % of hotspots from other IR-Drop methods does SigmaDVD cover?) and how to handle the increase in hotspots/violating instances caused by the massive increase in noise coverage. We quantified this new flow's coverage capabilities through heatmap comparisons. In this presentation, we will first discuss the theory of SigmaDVD, various trials we conducted to compare SigmaDVD with other IR-Drop methods, and applications of latest tool features, such as aggressor view, to prioritize, root-cause, and avoid power noise hotspots.
Event Type
Engineering Track Poster
TimeMonday, June 245:00pm - 6:00pm PDT
LocationLevel 2 Exhibit Hall
Back-End Design
Embedded Systems
Front-End Design
IP