Over the phone. Asked in detail over resume and current projects. Then deep dive in how and why on every decision made in the projects. Basically checked on how confidently I am responding to questions. Then talked about different circuits for clocking
There were 6 rounds of interviews asking questions from different aspects. Some focused on project experience, some focused on basic analog circuit questions. The interviews were arranged in one day.
Interview questions [1]
Question 1
How to reduce the noise without changing zero and pole location
Took 8 weeks without feedback before a zoom interview. Asked about my education and when he reached an area I hadn't learned yet he asked me to intuit the rest.