Physical Design Engineer Interview Questions

595 physical design engineer interview questions shared by candidates

The question was about the placement of flops during routing. The interviewer asked me if there is a wire or an interconnect where exactly would I want to place a flip flop into the design-At the start, in the middle or the end. She gave X, Y locations and wanted me to identify where I would be placing the flops to stabilize the design.
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Physical Design Engineer

Interviewed at Marvell Technology

4.3
Mar 6, 2023

The question was about the placement of flops during routing. The interviewer asked me if there is a wire or an interconnect where exactly would I want to place a flip flop into the design-At the start, in the middle or the end. She gave X, Y locations and wanted me to identify where I would be placing the flops to stabilize the design.

first interview 1) setup hold constrains 2) draw VTC of inverter and explain it, how can you move the curve 3) question about the capacitance of inverter 4) given one priority encoder 4:2 implement 16:4 priority encoder 5)implement Mux 4:2 Second interview 1) draw FF using Mux and get the setup, hold and CQ from the FF design 2)Draw SRAM and explain it functionality 3)question about capacitor Jumps
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Physical Design Engineer

Interviewed at Amazon

3.5
Jun 18, 2022

first interview 1) setup hold constrains 2) draw VTC of inverter and explain it, how can you move the curve 3) question about the capacitance of inverter 4) given one priority encoder 4:2 implement 16:4 priority encoder 5)implement Mux 4:2 Second interview 1) draw FF using Mux and get the setup, hold and CQ from the FF design 2)Draw SRAM and explain it functionality 3)question about capacitor Jumps

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