Ask your background and what types of skill you have to benefit the company. HR just ask the general questions. Hiring mangers ask questions based on what you said and their interests.

2 Phone interviews, one is for general questions and the second one is only for technical problems, such as SEM and semiconductor industrial Onsite interview at San Jose about 4hours. making a presentation and in-person interview about 45min per perso. the last one was with the HR.

Phone interview, followed by an utterly disorganized in-person interview which turns mostly into skype interviews. Prospective manager started off with the phrase "Americans don't like our hours here" so if you are an American, you are clearly not welcome. Proceeded to follow this up with "how much overtime is acceptable before you quit?" for a salaried engineer position. Company is 90% Asian, and expect a foreign language to be spoken in front of you while they try to figure out how to run an in-person interview. 45 minute interview slots are given, but people do not show up on time, and only have maybe 10 minutes of questions prepared. A presentation was expected, but only 1 person showed up in person and 2 on the phone. Overall, very unwelcoming atmosphere if you do not fit their company demographics.