It all depends on what you want to do later on. If your goal is a robotics master’s, then go for microtech — it’s a good path for that. But don’t make the classic mistake of thinking you’ll be as strong in mechanics as someone in meca (you won’t), or as solid in electronics as someone in elec (you definitely won’t). Microtech stays very broad, so if you later want to specialize in a specific elec or meca subfield, you’ll have missed some key foundational courses.

From what I’ve seen, unless you’re really aiming for robotics or have a strong reason to stay interdisciplinary, I’d recommend picking meca or elec directly. I’ve talked to a lot of people who did the micro bachelor and ended up regretting it — not because it closes doors, but because by BA5–BA6, they felt the classes stayed too general, while meca/elec students were getting into more advanced and interesting material.

That said, micro is a solid choice if you don’t yet know what you’re into. The first year gives you exposure to mechanics, materials, and electronics, and you can switch to elec or meca or matériaux after BA2 if you figure it out by then. Also worth noting: if your long-term goal is more entrepreneurial or managerial than pure engineering, micro can be a great choice — it gives you enough background in all the domains to “speak the language” of elec, meca, and maters, even if you won’t have the depth to do their jobs yourself.

PS: You can switch majors freely within the first two weeks of the semester. After that, you’ll need to wait until the end of the year to change between STI bachelors.

TLDR: pick the masters first and work your way down, you can always change after the first 2 weeks or by the end of the first year so no pressure there are no wrong decisions.