Lam Research Product Engineer interview questions

Was contacted by a recruiter and setup an initial phone screening. Was told toward the end of the phone screening that the hiring manager/ group director will be calling me in a couple days for the second phone interview. I was offered an on-site interview by the manager.

Gave a 1 hour presentation in the morning followed by about 6 hours of 30-minute one-on-one interviews. I was a little confused sometimes because a few times people were subbed out and they would even seem confused. Most discussions revolved around what the job would entail and I get much opportunity to speak until the problem solving questions.