
Explore how input and output capacitances influence short-circuit current and leakage power during switching, and how threshold voltage and process variations affect voltage transfer and area-performance tradeoffs.
Explore how load and Vt swap affect circuit performance and area, and how buffer trees redistribute fan-out to improve timing, with trade-offs in dynamic, short-circuit, and leakage power.
Explore path-based analysis (PBA) based fixing and reg2reg based fixing for timing ECO changes, comparing how each targets slack and worst-case paths, and their up-sizing trade-offs.
Explore hierarchical eco strategies, including top-only and full-chip approaches, to fix timing slack at the interface or inside blocks by upsizing cells and applying fixes for replicated head blocks.
First, let’s define better? Better in terms of Power. Performance and Area
Every VLSI engineer, an RTL architect, or Lead Synthesis Engineer, or Senior Physical Designer, or Director of Signoff timing analysis – practically everyone is doing timing ECO at every step of their flow. I, being a part of Signoff timing analysis and Physical Design world, am doing ECO almost every day, and so I understood that its more than adding buffer and up-sizing/downsizing cells.
All of the factors or ways shown in above image impacts either dynamic power or short-circuit power or leakage power. The question is, do you know why do we still do it? Do you know how can we still do with minimally impact on other parameters? Yes, No, Don’t Know….
It’s time to unveil more than 9 strategies to do timing ECO and below are few of them
…..and many more…
See, I told you, timing ECO is more than just adding buffers and sizing cells…Do you want to know all the strategies?
Do you want to be a better timing engineer? Engineering includes tons of changes and modifications from inception to final product. Hence its called Engineering Change Order (ECO)
Welcome all of you to my "Timing ECO webinar", which was conducted along with ~50people on 6th Jan, 2018. Join and re-live the webinar.