Surface mount technology (SMT) pad design with differential contact strips having converging narrowing distal ends that facilitate high speed communication

摘要

An Information handling system (IHS) includes a circuit board assembly with surface mount technology (SMT) pad structure. Landing pad(s) attached to circuit board substrate have a mounting area that receive an SMT connector pin onto adjacent pair of differential contact strips plated to nonconductive surface and extending longitudinally in parallel alignment. A return current strip is longitudinally aligned, adjacent to the differential contact strips on a first lateral side. The return current strip is connected to a ground plane of the circuit board substrate. Converging narrowing of the adjacent differential contact strip increases separation from a distal end of the return current strip. The separation improves signal integrity by reducing fringe effects, increasing impedance, and quenching resonance. A surface mount device (SMD) has one or more connector pins that are attached to the one or more landing pads to conduct the high-speed communication signal.