Electronics Forum | Mon Nov 02 07:16:47 EST 2009 | umar
Base on the top picture condition, seems like the boards condition is a lot with solder splash or solder ball which is per IPC-610 is under reject (under 5.6.2)for class 3 product. While the picture 2 is showing those the solder resist is not melt pr
Electronics Forum | Thu Jun 07 05:11:42 EDT 2012 | cp38260
Hi, I have pcbs (Duroid/RT 5880) with raw copper, soldered in vapour-phase chamber at 230 degrees Celsius. During soldering, copper gets tarnished. Cleaning with Vigon A250 removes the tarnished layer. Indeed, in the VigonA250 techn. datasheet it is
Electronics Forum | Tue Nov 03 20:00:47 EST 2009 | davef
Solder Mask Adhesion Pull Test Tape List IPC-TM-650 Test Method 2.4.28.1, Adhesion, Solder Resist (Mask), Tape Test Method, defines the procedure for determining the adhesion of solder resists (masks) used over melting metals, (such as solder plated
Electronics Forum | Tue Nov 03 18:09:17 EST 2009 | gregoryyork
I think most have summed up the first pictures also is the drillng looking like it is misregistered as well. Better to do a solvent test to determine resist cure not the old stuff the newer chemicals show under cure problem much better. Try your st
Electronics Forum | Mon Jul 17 09:12:59 EDT 2017 | barryg
Anyone recommend a good Batch type PCB cleaning system that has some cleanliness test capabilities?
Electronics Forum | Wed Oct 12 12:05:17 EDT 2011 | dphilbrick
It melts many plastics but not harmful to electronic components. to use it properly you need a vapor degreaser.
Electronics Forum | Mon Aug 11 05:26:55 EDT 2008 | gersla
Hi All We are looking for not expensive solution for misprint PCB cleaning for both one and double side assemblies. We have tried different ways and cleaning solutions like: IPA, Vigon Zestron SD300, Vigon SC200 by deep the boards in to stainless ste
Electronics Forum | Mon Mar 29 13:59:27 EST 2004 | jdumont
Well how can I correct this? Would baking the board prior to any operations help? Is this an issue I should get the PCB manufacturer involved with, or something that is common and just live with it?
Electronics Forum | Fri Feb 05 11:50:54 EST 2010 | baildl632
I just browsed this article and found no mention of cleaning with a "sonic" washer. We have a PMR Systems Ultrasonic Stencil Cleaner. The manual says it works well on cleaning PCB's for varoius reasons. It works excellent for removing lead. We can wa
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