Electronics Forum: yellow spot on pcbs after reflow (19)

Re: gold finish on pcbs

Electronics Forum | Fri Nov 10 17:44:48 EST 2000 | Dave F

In response to your questions: Is the embrittlement from excess gold in lead / tin solder connections bad? It can be vereeee bad. Does it affect all plating processes the same? Give us a break and read the SMTnet Archives, for instance: BGA prob

Blow hole on pad after reflow oven

Electronics Forum | Wed Jan 12 20:18:14 EST 2011 | Jacki

How many % were affected? If a few,it can be caused bcoz of PCB coating. We had encountered it and PCB house replaced for faulty boards. Since then, we do test first if we hve to solder PCBs from this PCB house.

Industry News: yellow spot on pcbs after reflow (2)

How To Set Profile In SMT Reflow Oven

Industry News | 2018-10-18 09:37:27.0

How To Set Profile In SMT Reflow Oven

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Seika Machinery Sees Increased Emphasis on SMT Line Process Improvements

Industry News | 2021-06-09 04:41:58.0

Seika Machinery, Inc. has seen increased popularity and demand of its process control systems.

Seika Machinery, Inc.

Videos: yellow spot on pcbs after reflow (1)

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Express Newsletter: yellow spot on pcbs after reflow (990)

SMTnet Express - April 7, 2022

SMTnet Express, April 7, 2022, Subscribers: 25,732, Companies: 11,564, Users: 27,174 Effect Of Vacuum Reflow On Solder Joint Voiding In Bumped Components Voids affect the thermal characteristics and mechanical properties of a

Partner Websites: yellow spot on pcbs after reflow (120)

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:  We have been stumped by occasional opens at the corner balls of some BGA components after reflow. We have experimented with many minor adjustments, yet this occasional problem continues

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