Physical Design Engineer Interview Questions

711 physical design engineer interview questions shared by candidates

Draw Cmos inverter.What would happen if we swap Pmos and Nmos.What if Nmos is connected to VDD. Questions regarding .lib,LEF, Antenna file content . How do we define rectilinear polygon in LEF.. Multicycle Path calculation for setup and hold . Draw 4 Input NAND Gate using 2 -Input NAND Gate what is index table defined in .lib file. How do we define antenna rules in techfile What are all challenges faced in your recent project. Questions were more from your resume. Any scripting which is hard for you. Tell us more about colored flow.
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Senior Physical Design Engineer

Interviewed at NVIDIA

4.6
Apr 27, 2017

Draw Cmos inverter.What would happen if we swap Pmos and Nmos.What if Nmos is connected to VDD. Questions regarding .lib,LEF, Antenna file content . How do we define rectilinear polygon in LEF.. Multicycle Path calculation for setup and hold . Draw 4 Input NAND Gate using 2 -Input NAND Gate what is index table defined in .lib file. How do we define antenna rules in techfile What are all challenges faced in your recent project. Questions were more from your resume. Any scripting which is hard for you. Tell us more about colored flow.

What is Set up and hold time? How would you solve set-up time issues? Why do set up time issues occur in a circuit? Theoretical questions based on Setup time were asked to solve. How does setup time vary with respect to the PVT? What does "7nm" in 7 nm technology represent? How would you increase the buffer strength? Theoretical question based on cache and miss rate and virtual memory was asked to solve. What is cross talk? How to prevent it? A puzzle based on Bullet and gun?
avatar

Physical Design Engineer

Interviewed at NVIDIA

4.6
Aug 10, 2021

What is Set up and hold time? How would you solve set-up time issues? Why do set up time issues occur in a circuit? Theoretical questions based on Setup time were asked to solve. How does setup time vary with respect to the PVT? What does "7nm" in 7 nm technology represent? How would you increase the buffer strength? Theoretical question based on cache and miss rate and virtual memory was asked to solve. What is cross talk? How to prevent it? A puzzle based on Bullet and gun?

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