Senior Design Engineer Interview Questions

1,076 senior 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
avatar

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

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