ENIG (Electroless Nickel Immersion Gold) is a surface finish used in the production of printed circuit boards (PCBs). It involves depositing a thin layer of nickel onto the copper pads and traces of the PCB, by a layer of immersion gold.
(4 Layer ENIG PCB Board)
The main advantage of ENIG is its flat surface, which makes it suitable for fine-pitch surface mount technology (SMT) components. It also provides excellent solderability and corrosion resistance, making it a popular choice for high-reliability applications.
When selecting a surface finish for your PCBs, it is important to consider the specific requirements of your application and choose a finish that provides the necessary performance and reliability. ENIG is an excellent choice for fine-pitch SMT components and high-reliability applications where performance is critical.
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