Synopsys Design Constraints
Timing closure is the big whale for most P&R designers. You get it done, and then you can wash your hands off all those annoying designers and get to work cleaning up and beautifying your layout....
View ArticleICCompiler MCMM Flow – create_scenario
The PnR tools now have concurrent multi-corner and multimode analysis and optimization capabilities. In ICCompiler, we create scenarios to specify the different corners and modes the design should...
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Spare Cells
I have been writing an article on ECO flows.Of course I cannot talk about freeze_silicon ECOs without talking about spare cells.When I was a wee intern sitting through PnR training, spare cells...
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Physical Only Cells; Well Taps & Decap Cells
In PD flow, you must have come across the term physical only cells. Let us explore a few of them. Well Tap Cells Decap Cells Filler Cells Well Tap Cells Library cells usually have well taps which are...
View ArticleTechnology LEF
Technology LEF contains the rules pertaining to the process you are using for fabrication. The LEF file is an ASCII representation and includes layer, via, placement site type etc.A technology LEF...
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