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Electronic Assembly Cleaning Basics
Monitoring & effectively controlling chemistry concentration when cleaning electronic assemblies is crucial for maintaining optimal cleanliness results & preventing costly consequences.
KYZEN
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Your award-winning cored wire supplier
As an industry-leading, full-line supplier of flux-cored wire solder, our award-winning solutions meet the needs of virtually every assembly and rework application.
Indium Corporation
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| Ask the Experts |
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May 29, 2006 - Updated
July 5, 2007 - Originally Posted
Difference between ENIG and Flash?
With PCB plating what's the difference between ENIG and Flash?
Mike Johnson
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| Expert Panel Responses |
You are comparing apples to oranges. ENIG describes materials (nickel and gold) and processes (electroless for nickel and immersion for gold). Flash describes the plating thickness. Flash typically means a very thin (3 to 10 microinches) coating of gold, regardless of the process. Therefore, flash gold could be electrolytic, electroless, or immersion. Initial problems with flash gold in the 1990's tend to refer to an electroless process used over separable connectors that resulted in galvanic-driven pore corrosion.
Dr. Craig D. Hillman
CEO & Managing Partner
DfR Solutions
Dr. Hillman's specialties include best practices in Design for Reliability, strategies for transitioning to Pb-free, supplier qualification, passive component technology and printed board failure mechanisms.
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Touchless Solder Ball Removal
Watch our video showcasing touch-free BGA component deballing. This revolutionary approach achieves unparalleled reliability and precision when preparing BGA components for re-balling.
Circuit Technology Center
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