Presentation
Next-Gen comprehensive IR analysis with Ansys SigmaAV
DescriptionIn advanced technology nodes, metal pitches have not scaled with area which has led to increased cross-coupling between instances where switching instances in the immediate vicinity have a significant impact on an instance's IR drop, with a measurable impact from areas outside the immediate vicinity from the shared PDN. In order to ensure that there are no IR drop escapes, it is imperative to undertake two separate analyses, the first where the local region around an instance is sensitized to expose all attacker-victim combinations that can happen over the course of product lifetimes, obtained with SigmaDvD, and the second, areas outside the local regions modelled to represent design behavior, analyzed with traditional transient Dynamic IR. The capability to combine both analyses does not exist in present tools. We present SigmaAV, a brand-new engine from Ansys that merges SigmaDvD and transient Dynamic IR to derive an IR drop that encompasses the impact from local aggressors with IR drop events outside the local vicinity. In the presentation, we review what this technology is, the trends that we saw on our designs and how we leverage its exhaustive nature in IR-STA for Fmax improvement and power, area reduction.
Event Type
Engineering Track Poster
TimeTuesday, June 255:53pm - 5:54pm PDT
LocationLevel 2 Exhibit Hall
Back-End Design
Embedded Systems
Front-End Design
IP