Electronics Forum | Fri Mar 06 10:46:35 EST 2009 | davef
First, we agree with Loco that your QFP is nonwetting, rather than dewetting. Your sceen-shots look like ol' timey SnPb paste recipes. Turn-up the heaterometer dial. Second, on nitrogen: * We kinda think your O2 needs to be around 100ppm with 99.99%
Electronics Forum | Tue Oct 31 22:56:23 EST 2006 | davef
So at incoming inspection, what are the results for your "dip & look" solderability testing [IPC/JEDEC J-STD-002A] of the specific problem component?
Industry News | 2009-07-17 19:02:35.0
The FLX2011-MK, Essemtec’s production center for flexible circuits and membrane keyboards, is now equipped with a jet valve dispensing system, allowing it to place smaller SMD components and LEDs on flexible circuits. The jet valve dispenses small glue dots more accurately and faster than others, and is contactless.
Industry News | 2019-04-15 18:42:38.0
Murray Percival Company today announced the launch of a spring sale on PACE items including but not limited to: Pace soldering tips in various sizes, desoldering tips, tip sets, the Pace TJ-85 ThermoJet Handpiece Kit, TT-65 ThermoTweez Handpiece with Tool Stand, and Pace Arm-Evac 50 Fume Extractor.
Heller 公司 | http://hellerindustries.com.cn/Vacuum-Void-Reduction-Reflow.pdf
The Effect of Vacuum Reflow Processing On Solder Joint Voiding And Thermal Fatigue Reliability To be published in the Proceedings of SMTA International, September 17 - 21, 2016, Rosemont, IL
ASYMTEK Products | Nordson Electronics Solutions | https://www.nordson.com/en/divisions/efd/resource-center/solder-glossary-of-terms
). Bridging Formation of a solder alloy connection between two or more adjacent contacts. Bumped Circuit Boards Bare printed circuit boards that have had solder paste deposited and reflowed on the pads prior to component installation
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