The Significance of Circuit Board Gold Fingers in PCBs
- The term “circuit board gold finger” refers to a series of uniformly spaced square pads that serve as electrical connection points.
- Gold fingers are crucial for establishing connections in components like board cards, LCDs, motherboards, and chassis.
- Design includes copper foil with nickel-plated layer, topped with a thin gold coating.
Understanding Gold Finger Core Boards in PCBs
The gold finger core board in a PCB plays a vital role in connecting the circuit board to external devices through connector pins. These pads, plated with nickel and gold, ensure efficient conduction and are named for their finger-like appearance.
Classifying Gold Finger Core Boards
- Conventional gold fingers: Rectangular pads of uniform length and width.
- Segmented golden fingers: Varying lengths with disconnected front sections.
- Long and short golden fingers: Pads of different lengths along the board’s edge.
Identifying Features of Gold Finger Core Boards
Gold finger core boards lack character frames or markings, feature standard solder mask openings, and often extend partially from the board’s edge. Some boards have gold fingers at both ends, while others may only have them on one side. Variations include single, wide gold fingers.
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