Electronics Forum | Thu Sep 09 10:50:59 EDT 2004 | agkettle
Does anyone have any experience with underfill of HD connectors? New customer wishes to underfill 6 HD connectors that have been pressed into PCB. Capillary action is causing the conformal coat to wick up into connector. Material is acrylic.
Electronics Forum | Wed May 18 19:12:26 EDT 2005 | HOSS
Hello, Assuming that your dwell and coverage at the wave are in order..... Have you checked the angle and pressure of your fluxer air knife? You can only count on capilary action to a point. The air knife, set correctly, will help get your flux t
Electronics Forum | Tue Jun 07 08:57:14 EDT 2005 | ktron
Hi there, I have questions regarding on dewetting issue.. Q1) How to identify on good or bad ICs lead that could contribute to dewetting? Q2) What actions that must be taken in facing this issue? Thank n regards,
Electronics Forum | Thu Jul 21 14:16:56 EDT 2005 | stepheniii
Tell them every action taken with the boards carries risk of damage. Process steps that don't do anything should be avoided because they carry the risk of causing defects. Even inspection causes the occasional defect, and board handling in general s
Electronics Forum | Mon Aug 01 09:53:17 EDT 2005 | patrickbruneel
Interesting article on the status of the directives in Europe. http://europa.eu.int/rapid/pressReleasesAction.do?reference=IP/05/895&fo
Electronics Forum | Thu Aug 04 11:19:49 EDT 2005 | patrickbruneel
The Directive becomes a law when it's written into law by all states in Europe. Estonia, Finland, France, Greece, Italy, Malta, Poland and the UK have not done that yet. Look here: http://europa.eu.int/rapid/pressReleasesAction.do?reference=IP/05/895
Electronics Forum | Wed Sep 14 14:31:27 EDT 2005 | russ
Here is the way I have it. Evaluate non-conformances and provide root cause, corrective, and preventative actions to eliminate re-occurence or provide satisfactory screening methods for such..
Electronics Forum | Tue Sep 20 10:33:19 EDT 2005 | PWH
Lead-free??? You might see these kinds of problems with capillary action in t-hole items more-so than lead.
Electronics Forum | Thu Nov 17 20:23:14 EST 2005 | cangly
Hi Russ, We control the gravity of flux each 8 hours and will mix thinner to balance it if any.. Do we need more any action for this.. Thanks for your advices.
Electronics Forum | Thu Mar 16 10:04:41 EST 2006 | slthomas
"better gasketing, less dog-earing" I suppose gasketing could contribute but my assumption is that it's a function of better shearing action between the blade edge and the aperture wall. You get a more consistent shape on the top of the paste deposi
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