Two rounds: hiring manager and director. Normally, the manager is more important. As long as you can get a positive impression, you should be more or less good enough for the second round. There may be a US interviewer for the second round, thus timing could be tricky.
One example of a past troubleshooting example.
The following metrics were computed from 4 interview experiences for the Applied Materials Manufacturing Engineer role in Singapore.
Applied Materials's interview process for their Manufacturing Engineer roles in Singapore is incredibly easy as the vast majority of engineers get an offer after going through it.
Candidates reported having very good feelings for Applied Materials's Manufacturing Engineer interview process in Singapore.