Intel Corporation interview questions

After submitting many resumes for different positions online, I got an email about setting up a phone interview. A ~1hr phone interview included a few questions about my work, but mostly job descriptions, and he asked me how a transistor worked. 2 days later I got an email regarding an onsite interview. 1 week later I flew to Portland/Hillsboro for the onsite. Onsite interview was 1 9 hour day with a 2 hour lunch. Interviewed with 5 people individually and gave a ~1hr presentation. Went out to lunch with 2 people who had jobs similar to what I was interviewing for. I felt that the interview went well, but I left without a good idea either way if I would get an offer. They said they would call in 2-4 weeks, I heard back with an offer in just over 5 weeks.

Submitted Resume through Employee Referral process. Got an e-mail after a couple of months to schedule a phone interview for the next week. But the interview got cancelled and had it rescheduled for a week later. Was asked to give an overview of my research, explain situations which show my leadership and team work sills. Got invited for on-site interview.