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Following the deposition of the solder mask but before surface finishing, the PCB Gold Fingers plating process begins. To avoid exposure during beveling, the inner PCB layers that are closest to the PCB edges must be copper-free. From the centre of the PCB, the Gold Fingers should be positioned facing outward.
The gold fingers are designed to be shorter on some PCBs than others. The PCB used for memory card readers is the most pertinent illustration of this type of board since it requires the device attached to the long finger to be energised before the device connected to the shorter finger.
The Global PCB Gold Finger market accounted for $XX Billion in 2023 and is anticipated to reach $XX Billion by 2030, registering a CAGR of XX% from 2024 to 2030.
The growth of smart technology will be strongly influenced by the development of PCB gold fingers and the ongoing improvement in their performances. The gold plating technique is the first step in creating gold fingers.
One must use a circuit board, a plating bar, and adhere to the laying instructions. Gold is placed during PCB manufacture after soldering. The majority of the time, producers polish their boards’ surfaces before gold plating them.
The gold plating procedure described below is predicated on the notion that one might already have a circuit board and are simply gold plating its edges to increase its durability.
Gold fingers have advanced into complex designs to fulfil diverse production needs thanks to Gerber files and circuit engineering improvements. Segmented gold fingers (SGF) and edge connectors of varying sizes are well-known circuit components.
Circuit board gold fingers have unique designs and specs, just as other electrical components. The design requirements for circuit board gold fingers will be covered in this section.
Make sure copper is not present in the internal PCB layers. When copper is discovered in the inner layers, it causes too much contact during beveling. Avoid using copper substrates in the internal PCB layers as extra connections during beveling are unneeded.
Care should be used while postulating PCB with plated-through holes (PTH). Place the PTHs in a 1mm area of the gold fingers. In other words, make sure there is a 1mm space between the gold fingers and the holes.
