Double-sided gold finger circuit board

Definition and Usage Gold-finger PCBs are those with gold-finished finger-like pads that are typically used as edge connectors. Electroless gold has excellent solderability, but the chemical deposition process means it is too soft and thin to withstand repeated wear and tear. Gold plating is thicker and harder, making it ideal for re-mating PCB edge connector contacts. Chamfering of Edge Connectors Gold finger PCBs often have to be chamfered at the edge connectors to ensure easy insertion. Bevel cuts can be specified in the order details if specifically stated. Purpose and Applications What are Gold Fingers? Gold fingers are the gold-plated posts you see on the edge of a printed circuit board (PCB) connection. The purpose of the golden finger is to connect the auxiliary PCB to the motherboard of the computer. PCB gold fingers are also used in various other devices that communicate via digital signals, such as consumer smartphones and smart watches. Gold is used for connection points a…