| https://www.eptac.com/ask/failing-to-remove-gold-plating-in-final-assembly/
board’s acceptance in final assembly? Answer: The gold plating on boards is typically an ENIG coating, which is Electroless Nickell, Immersion Gold plating
Imagineering, Inc. | https://www.pcbnet.com/blog/everything-you-need-to-know-about-pcb-finish/
. Cost In the world of printed circuit boards, you get what you pay for. Generally, the more expensive PCB finishes like electrolytic wire bondable gold, electrolytic hard gold, and electroless nickel electroless palladium immersion gold (ENEPIG
Imagineering, Inc. | https://www.pcbnet.com/blog/understanding-the-pcb-fabrication-process-from-design-to-delivery/
. For example, electroless nickel immersion gold (ENIG) is a common surface finish due to its long shelf life and RoHS compliance . However, it’s more expensive than other options
Surface Mount Technology Association (SMTA) | https://www.smta.org/hutchins/hutchins.cfm
? Technology Development Manager, IBM Semiconductor Research and Technology Center 1999 Anita Sargent , Binghamton University (Binghamton, NY) Paper: "The Mechanism of Electroless Gold Plating Using Dimethylamineborane Baths for Electronic Packaging Applications" Where is she now
Surface Mount Technology Association (SMTA) | https://www.smta.org/knowledge/journal.cfm
al. Abstract 17-2 IMPACTS OF BULK PHOSPHOROUS CONTENT OF ELECTROLESS NICKEL LAYERS TO SOLDER JOINT INTEGRITY AND THEIR USE AS GOLD- AND ALUMINUM-WIRE BOND SURFACES Kuldip Johal and Hugh Roberts et al. Abstract 17-2 ELECTROCHEMICAL MIGRATION ON HASL
ASYMTEK Products | Nordson Electronics Solutions | https://www.nordson.com/en/divisions/efd/resource-center/solder-glossary-of-terms
. Drawbridging See Tombstoning . E ENIG Surface finishing process of electroless nickel followed by immersion gold. During soldering the gold is dissolved into the solder joint
Imagineering, Inc. | https://www.pcbnet.com/blog/the-role-of-pcb-assembly-and-fabrication-in-the-aerospace-industry/
assembly to avoid damaging components during assembly. The finishing material of aerospace PCBs should be able to tolerate harsh environments. The most common choices include: Electrolytic nickel and gold. Electrolytic wire bondable gold. Electroless nickel
Imagineering, Inc. | https://www.pcbnet.com/blog/how-pcbs-are-made/
(Electroless Nickel Immersion Gold): Provides excellent solderability and corrosion resistance. Commonly used for high-reliability applications
ASYMTEK Products | Nordson Electronics Solutions | https://www.nordson.com/en/divisions/efd/resources/solder-dictionary-of-terms
. Drawbridging See Tombstoning . E ENIG Surface finishing process of electroless nickel followed by immersion gold. During soldering the gold is dissolved into the solder joint
Surface Mount Technology Association (SMTA) | https://www.smta.org/smtai/best_papers.cfm
. Judy Glazer, Hewlett Packard, California "The Effect of Gold on the Reliability of Solder Joints" ^ Hide ^ "Best of Proceedings" Papers The following papers were selected by the SMTA International Technical Program Committee as the 2019 Best of Proceedings. 2019 1st Place
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