Contacted through HR and arranged a phone interview, and took a week to fix a date, and got a phone interview from a director of the device engineering and went through the introduction of the company and the routine role of the jobs, and asked about 10 device related questions, went though the research work a little bit, etc.

Referral from friend. Total process took 2 months. 2 weeks for the phone interview. Questions are standard, short channel effects and breakdown mechanisms. 2 weeks later for full day interview. The first interviewer didn't show up. He showed up at the end, and pushed the everything one hour later. Extremely unprofessional. Took 1 more month before before results were given.

I got an email from hiring manager directly that he wants to interview me. After a week interview was fixed. He asked me basic device physics questions with few tricky ones. He was good enough to explain the problems so that I can answer. Hiring manager told me that HR will get back to me in 7-10 days which never happened. I found that unprofessional.