|
Sponsor
|
|
You need clear soldering results?
The SEHO PowerVision AOI system is for fast, automated optical inspection. Designed for THT processes & focusses on 2 points: Continuous quality assurance & cost-efficient production processes.
SEHO Systems GmbH
|
|
|
Sponsor
|
|
The Right Tools for Every PCB Repair
Damaged circuit boards don't always need to be replaced. CircuitMedic offers professional-grade repair kits, tools, and materials for restoring damaged pads, traces, plated holes, and circuit board surfaces.
Circuit Technology Center
|
|
| Ask the Experts |
|
QUESTIONS
SUBMIT
MEMBERS
JOIN
|
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
|
| 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.
|
|
|
Free Newsletter Subscription
Circuitnet is built for professionals who bear the responsibility of looking ahead, imagining the future, and preparing for it.
Insert Your Email Address
|
|
Sponsor
|
|
Bring IPC Training to Your Facility
Mobile training center offers IPC certified classes at your company’s facility making solder training effective and convenient for your entire team.
BEST Inc.
|
|
|
