The process took 1 day. I interviewed at Intel Corporation (Santa Clara, CA) in Nov 2009
Interview
Met with 4 engineers and the manager of the team. The entire day took roughly 5 hrs to go through (1hr each, with an interview conducted over lunch). The 4 engineers all asked technical questions about layout, but somewhat basic and easy to pass for someone with the right background.
Interview questions [1]
Question 1
Take a point on a surface. How do you know you're contained inside a box?