Matrox Electronic Systems Hardware Design interview questions

It all went pretty fast, the whole process took about two weeks. After the HR phone screening, I had a technical interview comprising a written test on hardware design (about 40 min. long) followed by a personal interview in French with 3 team leads. The environment was very friendly and essentially consisted in describing my previous experience and analyzing the test. I didn't get everything right but they seemed to be interested in making sure you understand what's going on in the circuits and that concepts are clear. Several days after the technical interview, I had a third interview with HR and the department's VP; this one seemed to me to have the purpose of making sure your personality is a good fit and that you really are interested. On the very same day I got a call from HR with an offer.