There was actually a off campus interview by an engineer from NEC. The interview was about 30 minutes long and consisted of a very general test of my semiconductor knowledge, my interests/goals, and some info about the company. Once I passed that, I was called in for an on campus interview. The on campus interview was much longer (about half a day) and consisted of 1:1 interviews with 5 engineers (including a manager) and 1 HR person, consecutively. The interviews with the 5 engineers were about 30-45 minutes long and consisted of knowledge based questions and personal questions to gauge my interest in semiconductors. The knowledge based questions tested very basic electrical engineering and logic concepts. After the interviews, I went out to lunch with 2 entirely different engineers for a more casual type of personality interview. Finally I got a tour of the semiconductor fab and that was the end.