Physical Design Questions

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  1. Explain the flow of physical design and inputs and outputs for each step in flow

  2. What parameters (or aspects) differentiate Chip Design and Block level design?

  3. How do you place macros in a full chip design?

  4. Differentiate between a Hierarchical Design and flat design?

  5. Which is more complicated when u have a 48 MHz and 500 MHz clock design?

  6. How will you decide the die size?

  7. What are the input needs for your design (for synthesis stage & Physical Design stage)?

  8. What is SDC constraint file contains?

  9. What is Aspect Ratio and core utilization factor?

  10. Why higher metal layers are preferred for Vdd and Vss?

  11. What is the significance of negative slack?

  12. What is meant by abutment? Where do we use it?

  13. Define the following terms  (i) Leaf cell  (ii) Composite cell

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