A stitched-wiring process for miniaturized communications electronics

With the advent of transistors and similar solid-state components, an investigation was undertaken at Lenkurt to determine whether printed or etched circuit boards were practical for telephone-type multichannel carrier equipment. This study resulted in development of the manufacturing process here described. It permits automatic or semiautomatic fabrication, maintains excellent standards of reliability in the finished product, and offers a degree of repair-ability comparable to more conventional wiring.