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 have different cablaje pcb execut colors:
determined by its width, thickness and length, must be small enough for the current the conductor will carry. It is recommended that the power and force paths be larger than the signal paths. In a multi-layer board, an internal layer may execut cablaje pcb be mostly solid copper to act as a ground plane for shielding
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