I submitted my resume in response to an e-mail sent from Intel to my department. I was given a phone interview by one group and was told to expect an e-mail within a week, however I didn't get an e-mail for about 3 weeks. When they got back to me it was a different group but they wanted to bring me on site for an interview. The phone interview was mostly behavioral questions with the occasional question about my research.
The on site interview took place in the cafeteria. I spoke with about 12 people throughout the course of the day. In the middle I gave a presentation on my Ph.D. thesis work. Most of the questions in my interviews had to do with my ability to troubleshoot problems and understand the aspects of tool maintenance and management. The overall feel of the interviews was relaxed and everyone seemed to enjoy conducting the interviews. They were all VERY clear about the hours required and the stress level associated with the job. At the end, I went home feeling very good.
I got an e-mail from Intel about 2 weeks after my interviewing offering me a position.