A few weeks after submitting an online application, I was contacted by a senior engineer from Intel to schedule a phone interview. The phone interview included technical questions regarding my PhD work, my ability to troubleshoot equipment, and instances where I had to work on a team. Two weeks later, I was contacted via email to schedule an on-site interview at Intel's Portland Technical Development (PTD) facility. Since the holidays were coming up, it took two months before I was able to fly out on-site.
The on-site interview consisted of 30-45 min one-on-one interviews and a hour long mid-day seminar on my PhD work with some Q&A thrown in. I had around 10 interviews in the cafeteria both before and after the seminar (with one area manager, three group leaders, a couple of technical fellows, and a few PTD engineers). The area manager mostly gave an overview of the organization, the group leaders wanted to know my working style to assess my fit in their groups, and the fellows and engineers were more interested in my mechanical acumen and general technical knowledge.
The overall process was fairly relaxed and included a neat window tour of the Intel development clean-room. Most of the engineers and fellows were cordial and up-front about the on-call duties and amount of hours required of process engineers. However, a couple of my interviewers were definitely not the most social and I struggled a bit to fill time. Approximately three weeks later, I was contacted by HR via email to discuss the terms of the employment offer and was given two weeks to make a decision.