Why does FPC pass through the hole? Is the through hole a copper strip or a copper ring?
Views：1470 Date：2021-06-15
Via holes to connect the upper and lower layers of the circuit, and double-sided circuits can be distributed in a limited area (compared to single-sided, double wiring)
Through hole manufacturing process: first drill holes, then sink copper (or black holes) to hang copper (carbon powder) on the hole wall as a conductive medium for subsequent copper plating, and then conduct copper electroplating to increase copper thickness.
Follow us
0755-23002009
Service
E-mail