electroless nickel immersion gold

/IH0 L EH1 K T R AH0 L IH0 S N IH0 K AH0 L IH0 M ER0 ZH AH0 N G OW0 L D/
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    Electroless nickel immersion gold (ENIG or ENi/IAu), also known as immersion gold (Au), chemical Ni/Au or soft gold, is a metal plating process used in the manufacture of printed circuit boards (PCBs), to avoid oxidation and improve the solderability of copper contacts and plated through-holes.

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