Ic Design Engineer Interview Questions

327 ic design engineer interview questions shared by candidates

Questions on On chip variation and what causes them. Was asked how I'd model them. i mentioned timing derates -which are a very old technique. Was asked if i worked with AOCV models. Was asked few questions on clock jitter
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Senior IC Design Engineer

Interviewed at Xilinx

4.2
Jul 16, 2018

Questions on On chip variation and what causes them. Was asked how I'd model them. i mentioned timing derates -which are a very old technique. Was asked if i worked with AOCV models. Was asked few questions on clock jitter

Design a synch FIFO. Was asked a simplified version. Was asked to assume depth of FIFO was 4 and width was 32. He was just looking for how and when I'd update the memory buffer and the control logic for the free and avail Was given a verilog module and asked to figure out what it was doing. Noticed that it was a round robin-ish arbiter. Later was asked if there was any case where starvation (live lock) was possible. It became clear as I was working thru the waveforms there was a specific case where the arbiter can starve any of the requests. Then I was asked to fix the code. Also I was asked how would we catch issue like this. I mentioned that Formal Prop Verif tools are the best vehicles to find bugs on such designs
avatar

Senior IC Design Engineer

Interviewed at Xilinx

4.2
Jul 16, 2018

Design a synch FIFO. Was asked a simplified version. Was asked to assume depth of FIFO was 4 and width was 32. He was just looking for how and when I'd update the memory buffer and the control logic for the free and avail Was given a verilog module and asked to figure out what it was doing. Noticed that it was a round robin-ish arbiter. Later was asked if there was any case where starvation (live lock) was possible. It became clear as I was working thru the waveforms there was a specific case where the arbiter can starve any of the requests. Then I was asked to fix the code. Also I was asked how would we catch issue like this. I mentioned that Formal Prop Verif tools are the best vehicles to find bugs on such designs

1. Introduction of your background (Fresh Graduate ? Experienced ? ) 2 What project you have done related to IC design ? 3 Elaborate more on the project (Not only description but also detailed technical question will be asked ) 4 Hand draw some circuit and answer any question they may have (Purpose ? Pros and Cons ? Gain ? )
avatar

IC Design Engineer

Interviewed at Xilinx

4.2
Feb 20, 2023

1. Introduction of your background (Fresh Graduate ? Experienced ? ) 2 What project you have done related to IC design ? 3 Elaborate more on the project (Not only description but also detailed technical question will be asked ) 4 Hand draw some circuit and answer any question they may have (Purpose ? Pros and Cons ? Gain ? )

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