immersion electrolyte for gold solution

  • Electroless Plating - Electrical Contacts

    Sep 21, 2014 ... Table 1: Immersion Gold Electrolytes ... To achieve a controlled deposition from such solutions the metal deposition has to happen through the...

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  • Gold Plating Solutions, Gold electroplating Processes

    A neutral electrolyte with high current efficiency producing matt yellow, pure gold ... An immersion gold solution for electroless deposition by charge exchange,...

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  • PCB Finishes: ENIG, ENEPIG, Electroless Gold, Immersion Silver ...

    ... Immersion Gold for Copper, Electrolytic Nickel Gold, Electrolytic Palladium> ... The ENEPIG process is an excellent solution for IC package PCB substrates,...

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  • Electroless immersion gold process

    A gold plating solution for depositing thin, uniform layers of 24 karat gold by an electroless immersion process – for printed circuit boards, transistor headers,...

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  • Patent US5232492 - Electroless gold plating composition - Google ...

    Aug 3, 1993 ... An electroless gold plating solution comprising a gold(I) complex, ... The bath is a true electroless gold plating bath, not an immersion bath, since the ... They are used for electrolytic plating in special non-cyanide processes.

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  • Electroless Deposition of Gold

    (also called immersion plating or cementation), (2) sub- strate-catalyzed plating, and .... depolarizes the gold elec- trode in the electrolytic soft gold plating bath [18]; namely .... factory solution to the nickel contamination problem. More recently...

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  • Gold plating - Wikipedia

    Edge connectors are often made by controlled-depth immersion of only the edge of the boards. Soft, pure gold is deposited from special electrolytes.

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  • Direct Immersion Gold as a Final Finish for PCBs and packages

    Uyemura Direct Immersion Gold (DIG) directly deposits gold onto copper using an ... Fig 1 Rest Potential measurement of DIG plating solution ... sodium sulfate with 0.1% tartaric acid as the electrolyte, and measuring the anodic current density

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  • Immersion gold plating vs. electroless gold plating - Finishing

    Q. Is there a substantive difference between electroless gold and immersion ... In Chapter 10, "Immersion Solutions" in Reid & Goldie's "Gold Plating .... This paper can be interesting to illustrate this thread: "Non-Cyanide Electrolytes for Gold...

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  • GOLD and SILVER PLATING - Technic

    Gold plating solutions as originally configured contained ... This realization allowed the development of purpose-designed gold plating electrolytes, ... although it is common to raise pH somewhat so as to minimize immersion deposition,.

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