Printed circuit soldermask
surface printed Aluminum circuit board base of a PCB can have a coating that protects the copper from corrosion and reduces the chances of solder shorting between traces or unwanted electrical contact with possible loose wires. For its function of helping to prevent solder shorts, the coating is called a solder mask. Soldermask is generally green in color but can
Printed circuit board assembly
printed circuit board assembly, or PCB assembly (PCBA). In informal usage, the term "printed circuit board Aluminum base circuit printed board" most commonly means "printed circuit assembly" (with components). Components are generally soldered to the PCB both to connect them electrically and to fix them mechanically. Printed circuit boards are used in
Printed circuit board construction
flat surface) that provide electrical connections on that conductive layer. Another manufacturing process adds plated or metallized holes that allow printed Aluminum board base circuit interconnections between layers. PCBs mechanically support electronic components using pads for bonding the component terminals and electrically connect them using traces of one or more layers of copper sheets