Straightforward and professional. I was asked to come interview after passing the first stage of hiring which involved taking an online test that covered some basic electrical engineering questions. The interview was a bit more hands-on than the test, which was a bit tough, but not unexpected.

The interview was based around fundamentals of analog electronics such as MOS device physics, Common source configuration, etc. Good learning experience. Device physics fundamentals. It was a phone interview that lasted 45 minutes. A preparation consisting of first four chapters of the Analog IC Design textbook by Razavi should be a great help.