Electronics Forum | Mon Feb 23 05:37:23 EST 2009 | emmanueldavid
Necoleta, PWB Blistering/De-lamination may not be due for Titanium finished threads / holders which is typically being used to draw high Shelf Life of Pallets and even flow across Auto Wave Soldering rails. There is also nothing to suspect on Liquid
Electronics Forum | Sun Feb 22 08:23:57 EST 2009 | davef
On a wave solder pallet, we'd expect the metal parts that go through the pallet to be warmer than the pallet material, but we don't expect them to be warmer than the solder. We don't expect a well made board to blister at soldering temperature. So,
Electronics Forum | Fri Mar 06 15:46:57 EST 2009 | deeclaybrook
Hi We have anew material that is very cost effective for solder pallets called Electro-Lock. You may find out more at http://www.rapidtool.com Kind regards dee claybrook
Electronics Forum | Fri Feb 20 02:09:23 EST 2009 | nibirta
Hi all, I have a question regarding some wave pallets having metallic traces of Titanium. The solder mask is blistering in some locations on the PCB and I am wondering if this Titaniumn may have an influence by incresing locally the temp. Also we ar
Electronics Forum | Mon Feb 23 05:46:26 EST 2009 | nibirta
thk you very much for your fast answers. And yes, I am suspecting the same things also. The problem is to convince the PCB supplier that is his fault. A big fight all the time. SO, i will double check everything you said, and I willl come back with r
Electronics Forum | Tue Feb 24 18:33:59 EST 2009 | gregoryyork
It is probably due to the solder mask being undercured and is porous alowing the flux to be absorbed which boils when it hits the solder wave that kills the adhesion. You should be seeing this only over copper traces/tracks. Reduce flux volume and in
Electronics Forum | Thu Mar 12 06:23:27 EDT 2009 | gregoryyork
Thanks Nicoleta It is nice to hear the problem is solved and this is a massive problem in the industry especially for Lead Free. It is easy for a supplier who doesn't understand to blame incompatibility just a quick way out but doesn't fix anything
Electronics Forum | Thu Mar 12 03:14:14 EDT 2009 | nibirta
Thank you for support. As i promised you, I am coming back with the results. The SM used was Probimer 77 with Kester 979 flux. The supplier says that there is an incompatibility and we have changed the flux with IF2009M. Same problem! They have chan
Electronics Forum | Tue Feb 27 07:51:59 EST 2001 | jackofalltrades
We use Selective Wave Pallets for the vast majority of our boards with great success. Many of our boards have BGA's and connectors on both sides, which for the most part then require the Selective Wave Pallet. We successfully use pallets up to 10mm t
Electronics Forum | Mon Feb 26 14:15:21 EST 2001 | marting
Steve, Currently we are using selective pallets and the best piece of advice is to find a supplier that will be able to handle the requirements of the selective wave process, for example proximity of chips to PIH devices, and pallet thickness etc. We
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