Recruiter from KLA contacted me regarding the position. They set up a phone interview a week later. The interviewer explained about the job. He asked some technical questions and brain teasers (which I thought were not relevant to the job).

The next day I got a call for setting up another interview round. This was a video interview. I had to prepare a presentation on a thesis/project that I had done earlier. The interviewer was a Product Marketing Manager. This was an hour long interview with mainly behavioral questions. I wasn't invited for any further rounds.

The recruiter did not provide any further updates. They didn't even give me proper feedback as to why I was rejected. This seemed very unprofessional to me.

Technical questions on transistors and semiconductor physics.

Brain teasers like bags with different fruits but wrong labels and another about a group of people crossing a bridge.