HACKER Q&A
📣 mardiyah

Is Samsung/other top brand their e-products use 3 layers PCB


Is it really common that Samsung or other top brand companies their electronic products use 3 layers PCB ?

got aghast found that it has one or two pin not seen connected at all by clear visible copper lines

  👤 mjoxley Accepted Answer ✓
actually, more likely to be 4 or 6 layers, depending on the size and complexity.