Applied Materials Customer Engineer interview questions

Interview process was ok. Answered everything accordingly. One interviewer was being quite rude he said stuff like "i just don't buy what you're saying" and when the interview ended he said "I'm just disappointed"

A preliminary interview over the phone is conducted in order for the employer to clear up any doubts about the job and so that they can get an idea of the possible employee's personality and communication skills. There is also an opportunity for the person being interviewed to talk in more detail about their most important skills and projects.