on the other side. "SMD" components are prototip circuit placa imprimat soldered on the same side of the board. A board can use both methods for soldering components. Today PCBs with components mounted only through holes are now less common. Surface mount is used for components like transistors, diodes, IC chips, resistors and
flexible circuits, and a layer of copper foil, laminated to the substrate. Chemical etching divides the imprimat circuit prototip placa copper into separate conductive lines called tracks or circuit paths, pads for connections, metallized holes (vias) for passing connections between layers of copper as solid conductive areas for electromagnetic shielding or other purposes. Each of the
unprecedented development in recent years of all fields of activity has led to a revolution in the types and models of printed circuits. Technology has penetrated more and more areas of our lives and required modernization, and the printed circuit through its prototip imprimat circuit placa continuous improvement was one of