Gold Finger Pcb

Gold finger pcb.The gold finger is composed of a plurality of golden conductive contacts. Because the surface is gold-plated and the conductive contacts are arranged like a finger, it is called a"golden finger". The gold finger is actually coated with a layer of gold on a copper clad plate by a special process because gold is highly resistant to oxidation and has high conductivity. Since the 1990s, Tin materials have become popular. At present, the"golden fingers"of motherboards, memory and graphics cards are almost always used Tin material.