The printed circuit board (PCB) has been around since the early 1900s. Its concept was to eliminate the need for vast and intricate wiring and has driven the ever-increasing complexity and process speeds in many everyday appliances, as well as in advanced manufacturing components. With all this progress, it is ironic that some new solutions to obtaining and managing even faster process speeds include adding in more wires – the issue that the PCB was invented to remove.
One solution being talked about is to bypass the PCB and use wires to connect point A to point B. This is sometimes done for convenience or to simplify PCB design, but in the future it may be required to handle high-speed applications.