Types of printed circuit board
sides, pcb which are called outer layers; Multilayer sandwich boards with additional internal layers of copper and insulation are called multilayer. PCBs can be single-sided (one layer of copper), double-sided (two layers of copper on both sides of an insulating board), or multi-layered (outer and inner layers of copper alternating with insulating layers). Among
Printed circuit soldermask
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 pcb mask. Soldermask is generally green in color but can have different colors: green, red, blue, white, black. Only the
Printed circuit board silkscreen
non-conductive permanent epoxy ink. The color is usually white, although other colors are available: yellow, black, blue, red. Screen printing is used to render useful information on the PCB board that can help users during assembly. It is used to pcb mark component values, part numbers, test points, polarity, etc. Screen printing does not influence