or Polyamide for flexible circuits, and a layer of copper foil, laminated to the substrate. Chemical etching divides the copper into separate conductive lines called tracks or circuit paths, pads placa electronica for connections, metallized holes (vias) for passing connections between layers of copper as solid conductive areas for electromagnetic shielding or
the chances of solder shorting between traces or unwanted electronica placa 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: green, red, blue, white, black. Only the outer
the printed circuit through its continuous improvement was one of the first aids that allowed this modernization. The smaller and smaller dimensions and the flexibility of the printed circuit placa electronica board made in recent years have greatly helped fields such as medicine and aeronautics to benefit from smaller and lighter equipment that has allowed