Met a recruiter at a campus career fair and was invited to an interview the following morning. The interview lasted about 45 minutes and consisted primarily of technical questions ranging from transistors to C programming. A week later, I was invited to come onsite for 2nd round interviews. The interviews lasted all morning and consisted of 4 40-minute interviews consecutively, all of which were technical. The interviews were followed by lunch with the interviewers and then a tour of the testing facilities.