Three stage process, Technical, Technical, Technical.
Telephonic discussions if not near to geo, then face to face .
Very competent technical panel , especially in semiconductors. They'll test you on all aspects personality, problem solving skill, fundamentals.
No questions would be asked based on memory, all questions would be out of problem solving skills or approach.
HR is just a formality , only to do offer roll out job not much
Offer rolled out , accepted and joined