Gold Finger PCB
The columns with gold plating along the interconnecting borders of printed circuit boards are known as “gold fingers” (PCBs). Gold fingers are used to link a supplementary PCB to a computer’s motherboard. A PCB’s edge may have a small column of rectangle PCB pads with hard-gold plating for connections. PCB gold fingers also referred to as “edge connectors,” are a typical PCB manufacturing requirement for USB sticks, video cards, etc. PCB gold fingers provide a direct connection to the PCB boards with the system/device. Compared to PCB connections and wires, this connection offers higher mechanical strength and conductivity.
PCB gold fingers can be classified into three types:
- Conventional PCB gold fingers with such a level and sometimes even array are known as “normal PCB gold fingers.” The dimensions of the PCB pads are uniform in terms of size.
- Uneven PCB gold fingers: The PCB pads are the same width, but they vary in length and, occasionally, in the spaces between them.
Segmented PCB gold fingers: The gold fingers are subdivided and the PCB pads have various lengths.
Gold used on PCBs
Gold is an excellent conductor of electricity, making it ideal for PCB applications. It can also carry tiny currents, which are crucial for modern electronics. Gold can be alloying elements with other metals like nickel or cobalt. It is a trustworthy connection medium since it does not fade or corrode.
Beveling PCB gold fingers is not at all difficult. The margin of the PCB metal sheets only needs to be mechanically cut. If a PCB’s gold fingers are facing different directions, the only alternative is to use the completely automated PCB gold finger chauffeuring equipment, which has the ability to selectively trim the PCB edges.