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. imprimate proiectare circuite Each of the conductive layers is designed with copper tracks (similar to wires on a flat surface) that provide electrical connections on
printed circuit with a specific stack-up, it must be taken into account that the internal tracks with controlled impedance are shielded by copper planes and for this reason only the thickness of the insulation between layers and tracks and the track thickness must be taken into account.
much of the layout work. Multilayer PCBs allow for much higher component density because the component paths on the inner layers would occupy the space between the components. The increase in the need for multilayer printed circuit boards with more than two, imprimate proiectare circuite four and especially more than six layers of copper has