My resume was passed along by a colleague who works at KLA-Tencor. I got a call by a recruiter out of the blue who proceeded to give me a somewhat rigorous technical interview (which was hard because I had no time to prepare), and it went so rough I honestly thought I would not get a call back.

Nonetheless, I was invited for an on-site interview about two weeks later. It consisted of 5 half-hour interviews with different people on the Applications teams. Talked a lot about the nature of the position, since it required 50% travel. They were nice people but constantly interrupted the interview to take phone calls.

How would you develop a SEM technique for detecting structural defects in a sample?

How would you solve the 27 balls puzzle?