Electronics Forum | Wed Sep 03 11:42:21 EDT 2008 | robinj
If the tarnish is really dark, it is very difficult to remove. Since it is yellowish it is only in the early stages. Replating will definitely work. I have used sulfuric acid based cleaners to remove this yellowish color. But rinse well and dry quick
Electronics Forum | Sun Sep 07 17:16:57 EDT 2008 | gregoryyork
OK Pizza it is then, here goes. Dewetting of Ni/Au pads, paste favouring the Tinned component lead hence excess paste wicking on top of the components. Reason is EITHER Nickel migration into the gold due to high levels of Ionics from poor rinse OR mo
Electronics Forum | Thu Dec 01 13:24:45 EST 2011 | kmakiya
Sounds like you have a bad heater. Check current on each leg of the heater circuit, CON6 for the wash and CON7 for the rinse. The current should be the same on each leg. Trek is now part of Stoelting, tech support is 920-894-2293. Hope this helps if
Electronics Forum | Tue May 22 11:38:04 EDT 2012 | naynayno
I am looking for IPC or other published standards that specify cleanliness levels for: 1) solder paste stencils 2) selective solder pallets When we cleaned PCB's we used a limit of 4 M-ohms. Now that we have transitioned to No-Clean, I am wonderi
Electronics Forum | Tue May 22 14:30:54 EDT 2012 | davef
There is no standard, nor should there be. You need to establish a standard that meets your customer requirements. The problem with those old-timey standard is that there's just so many choices. What works for you just might be too strict [or loose]
Electronics Forum | Tue Jan 15 22:33:32 EST 2013 | boardhouse
Hi Samuel, The issue your seeing is caused by lack of control of your board shops Immersion gold plating line. I would reject the order back to them. Their gold line baths need to be checked or they had a poor rinse after nickel plate before adding
Electronics Forum | Thu Nov 21 11:10:07 EST 2013 | luciano
Hello, We've just started using VIGON A200 in our Aqueous Trident XLD system and observed that aluminium electrolytic capacitors get corroded. Concentration was set at 20% and washing is done by spray at 150F for 6 to 8 minutes. Then is rinsed seve
Electronics Forum | Wed Oct 05 04:32:49 EDT 2016 | piyakorn
Rinse IPA 5 Min --> Treathment/soak IPA50%+SILENT50% 5Min --> Baking 60C/30Min --> Parylene coating (around 8Hr in chamber) --> Found defect spot. We have simulated and ensure board drying before parylene that still have spots. Need help - Thank y
Electronics Forum | Wed Feb 14 16:00:50 EST 2018 | cbart
We have used it,, mixed results, cleans well, but can as you would imagine destroy plastic, i've had operators soak product and that caused problems, it also destroys any marking labels. we also use different Saponifiers to remove residues in the pas
Electronics Forum | Mon Mar 11 13:38:54 EDT 2019 | cyber_wolf
Hi, Does anyone have any experience replacing the rinse valve actuator in a SMT800-ZD ? I think I had one go bad and it looks like you may need to time the new valve. It has cams on the shaft that engage and disengage limit switches. Thanks in adv
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