KLA interview questions

Had 3 rounds of interviews, then silence and finally after enquiring, was informed that they would prefer someone with more experiemce in certain areas. Not sure whether this was the reason because they were aware of my level of experience from the start. Very thorough interview process. First was contacted by HR recruiter, then after a long delay, phone interview with hiring manager. Then 1:1 with 3 persons but hiring manager had to travel that day. Next 1:1 with 4 others, where I also gave a presentation. Hiring manager was very sharp and asked semi-technical questions as if to watch my thought process and decision making in daily and strategic matters. Overall quite tough, yet satisfactory.