Electronics Forum | Thu Oct 28 17:46:44 EDT 1999 | Gary Kemp
My company manufactures memory modules and I'm finding solder specs on the gold fingers following the reflow process. We are using a no-clean solder paste. The spec sheet warns against crossing the 140 degree C mark during the soak stage, preventin
Electronics Forum | Thu Oct 28 18:14:51 EDT 1999 | John Thorup
Try looking for paste contamination somewhere. Dirty stencil, printer table or fixtures. Placement table/fixtures. Reflow belt/conveyer. Reuseable finger covers, if used. Try covering the fingers with Kapton tape during different stages of the proc
Horizontal Convection Reflow Technology Defined Horizontal Convection Reflow Technology Defined Leading up to the development of lead-free soldering alloys, Horizontal Convection* was developed for the reflow process. Getting the correct
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
| https://www.smtfactory.com/What-is-the-working-process-of-Full-auto-SMT-Stencil-Printer-id40272477.html
③ PCBs with gold fingers should avoid gold fingers, wipe them repeatedly with dust-free paper and a little alcohol, blow dry with an air gun, and check under a magnifying glass to ensure that there is
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