Micron Technology interview questions

The interview process is a mess. I understand Micron is expanding but I have been in this situation several times where I was ghosted by Micron. To validate this, I also checked it with atleast 2 other colleagues including a manager who had similar experience. Ultimately, the worst thing is they interviewed me atleast thrice in a span of one year but never gave me an offer. Even now after repeated follow ups, my application is still under review.

The process started with a technical phone screen. They asked some standard background questions as well as a couple technical questions. About a week later the recruiter reached out again to schedule a panel interview. For the panel interview itself, they asked me to prepare a 15-minute slide deck covering an introduction to myself, a deep dive into my Master's thesis/project, and why I wanted to work at Micron. Once I finished presenting, they pivoted to asking some more technical questions. They had me verbally walk through every single step of manufacturing a chip in an IC lab from start to finish. After that, they pivoted into manufacturing statistics asking a lot about DOE as well as SPC. Interview Questions: - What is Rayleigh's criterion? - How does an immersion scanning system work, and what is the critical parameter you have to think about? - Walk me through the exact step-by-step process of making a chip in a lab. - How do you set up a Design of Experiments (DOE)? - General questions testing my knowledge of Statistical Process Control (SPC) and other stats concepts.