The so-called circuit board gold finger refers to a row of equidistantly arranged square pads, exposed copper and gold-plated. It is mostly used for electrical connection pins for board cards, LCD connections, motherboards, chassis, etc., because the copper foil nickel-plated layer is plated with a thin layer of gold.
the gold finger classification and identification of the circuit board : 1.) Conventional gold finger (flush finger); 2.) Segmented cheats (intermittent cheats); 3.) Long and short golden fingers (ie uneven golden fingers).
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