- Why is Parastitic extraction performed?
- Explain the various Capacitances associated with a transistor and which one of them is the most prominent?
- What is clock feed through?
- Why are the minimum pulse width and minimum period checks important during timing analysis?
- Why does the pulse width of the signal shrink?
- Why is the insertion delay high? What could be the reason?
- What is the difference between set_false_path & set_disable_timing?
- Skew is not getting balanced, what could be the reason?
- Clock-tree is not getting built for certain sinks, what could be the reason?
- What kind of Vt cells you will use in clock-tree? Can we mix the Vt in the clock-tree?
- Explain PD flow?
- What are all your inputs?
- What is netlist?
- What are contents of SDC with the explanation using command?
- What is the library?
- What are the different file format inside a library?
- What is tech file and what does it contain?
- If we change the process what is the effect on .tech file.
- What are the technologies you know and use?
- What are the different process.(28lp,28HP,28GP,28HPC,28HPC+,28HPM)?
- What is unit tile parameter inside tech file?
- What is the meaning of fat table spacing in the tech file?
- What means by via rule inside tech file?
- What is metal density rule, why it is important?
- What is TLU+ file? What is there inside TLU+, what value do you see inside TLU+ files?
- Is TLU+ human re-able?
- What is there in a physical library?
- What are the different view of a physical library?
- Draw layout for NAND, NOR?
- What is present inside a lef file?
- What is the meaning of track?
- What is the meaning of the placement grid?
- What is the meaning of std cell height?
- What is meant by 8-track, 10-track, and 12-track? Can we mix 8, 10 and 12 tracks in the same design?
- What is .lib, how a cell delay is calculated?
- What is the meaning of 7X7 table, have you come across 7X7, 5X5, 9X9 tables? Why are we choosing 7X7?
- What kind of power is captured inside .lib?
- What is the meaning of cell rise and cell fall in .lib?
- What is the meaning of rise transition and fall transition?
- What is meaning of drive strength?
- What is meaning of multi Vt library?
- What is meant by timing arc?
- What the meaning of timing unate?
- What is PVT? How does delay vary with PVT? What are the different PVT corners you are aware of?
- What is temp inversion?
- What will you do once you receive all the inputs?
- What is the need of the sanity check?
- What are the different checks you perform during sanity checks?
- Can the output and input be floating?
- What will happen if o/p and pg are connected?
