Printed circuit board assembly
is called a printed circuit assembly, printed circuit board assembly, or PCB assembly (PCBA). In informal usage, the term "printed circuit board" most commonly means "printed circuit assembly" (with components). Components are generally soldered to the PCB both to connect circuit imprimat flexibil rigid them electrically and to fix them mechanically. Printed circuit
Printed circuit board construction
bonding the component terminals and electrically connect them using traces of one or more layers of copper sheets laminated on and/or between layers of conductive substrate sheets. A printed circuit board can have several layers of copper which are almost rigid circuit imprimat flexibil always arranged in pairs. The number of layers and the designed interconnection between them (vias,
Printed circuit soldermask
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 have different colors: rigid circuit imprimat flexibil green,