This was probably the fastest possible interview I ever attended, and of course with the best possible result - I got the offer. It was in Purdue university for RCG position. I had an on the spot pre-screening round while I gave them my resume showing interest in the position. I mostly had only design related coursework/project - nothing really in process/microelectornic fabrication. They asked me in detail about my project in DRAM and my thesis on nanotechnology.
After that, I had a 1:1 interview, which had a panel of 5 people including HR. They kept firing questions one after another, sometime not letting me finish (not that it was rude), but I was able to handle it well. Constantly mixed technical with behavioral questions. A lot of questions on quality - how its important, gave me situations asking what I would do to make sure quality wasn't affected.