One week after phone interview, I got an on-site interview. It's a very smooth progress. The first manager I was talking to is in Texas. I went to a conference room and get call from him. After that, it's all 1:1 interviews. Hiring manager took me for lunch and after that, asked several technical questions.

list several ways to design a low power SRAM. How the temperature affect SRAM performance. Effect of VDD scaling. design for multiple read ports. Basic 6T and 8T SRAM structure. Also ask for project experience. Phone is not clear, have a hard time to understand. The interviewer is nice. HR response is quick.