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. 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
Surface Mount Technology Association (SMTA) | https://www.smta.org/smtai/best_papers.cfm
? What Stays the Same?" View past award winners 2018: Kazuhiro Nogita, The University of Queensland " The Role of Nickel in Solder Alloys - Part 2
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
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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/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
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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
