Qualcomm Hardware Engineer interview questions

first round was written test which included aptitude, c programming and electronics. 2nd and 3rd round were interview's on digital electronics and the project which i did. 4th round was HR. That was all.

Applied online, received an email for phone interview after 2+ months. Had two interviews back to back, the first asked about my experience and related project, technical questions about leakage current and SRAM design, the second asked about detailed technical questions w.r.t circuit design.