14 Common Mistakes in Engineers’ PCB Board Design
The overlapping of the pads (except the surface mount pads) means that the holes are overlapped, and the drill bit will be broken due to multiple drilling in one place during the PCB board process, resulting in hole damage.
Parasitic capacitance and parasitic inductance of PCB board vias
Vias are one of the important components of multi-layer PCB board?, and the cost of drilling usually accounts for 30% to 40% of the cost of PCB board production.
