Technical documentation

mechanically. Printed circuit boards are used in almost all electronic products and some electrical products. Currently, the production and assembly of printed Technical documentation circuits are automated. Electronic computer aided design software is available to do much of the layout work. Multilayer PCBs allow for much higher component density because the component

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 be mostly solid copper to act as a ground plane for shielding and power return. For microwave printed Technical documentation circuits, transmission

insulating material FR4, Rogers 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 Technical documentation paths, pads for connections, metallized holes (vias) for passing connections between layers of copper as solid conductive areas for