IBM Characterization Engineer interview questions

I was interviewed at the NSBE convention,but the person said there was no slot anymore but from my resume he sees i am someone that can work for them,that he was going to recommend me. After two weeks i got a call from someone,already frustrated with the way all my interview was going in recent time, I was so real and that was what got the hiring manager interested in me.She interviewed me on phone with series of technical questions which i answered to the best of my knowledge.i guess she was impressed because she said she will like to interview me on site.I flew from Texas to Newyork where i had the 8hrs technical interview.It wasnt just me that was interviewed,so we all got to know one another during our lunch break,but the most important thing was that we were welcomed and it made the interview process easy. More So if any company is interested in you,they will do anything to get you.