Routing Interview Questions

  • Define the term routing in physical design flow?
  • What are the four steps in routing?
  • What are all the checks to be performed before routing stage?
  • What are the goal of routing stage?
  • How buffer can be used for avoiding crosstalk issue?
  • What is global routing?
  • What is Electromigration? How will you fix it?
  • What is Antenna violation? How will you fix Antenna violation?
  • What are the three types of global routing?
  • What is Track Assignment?
  • What is Detailed Routing?
  • What is Search and Repair?
  • How does the congestion number helps you to estimate the routing issues?
  • What is Routing blockage? Why do we need them?
  • Discuss the different types of DRC violations?
  • What is the difference between nine track and 12 track in standard cell?
  • Why do we use alternate layer horizontal-vertical-horizontal/vertical-horizontal-vertical(HVH/VHV) routing?
  • How spacing will be used for avoiding crosstalk issue?
  • Is routing overflow and congestion related? Explain?
  • Why power stripes are routed in the top metal layers?
  • How can you avoid crosstalk?
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vlsi4freshers

Hi I’m Designer of this blog.

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