Electronics Forum | Thu Apr 01 09:10:55 EST 2004 | cyclopsn
We are currently using non clean paste and non clean flux in our manufacturing process. But recently our customer feedback that using a non clean process might cause flux blockage in via hole area and potentially might burn or explode the boards over
Electronics Forum | Fri May 11 14:19:14 EDT 2012 | cyber_wolf
Regarding nano coatings : Nano coatings are susceptible to wear during the printing process and cleaning processes. As they wear they flake off and can potentially contaminate your solder. There is not a lot of independent data available on this so k
Electronics Forum | Fri Jun 09 09:52:03 EDT 2023 | tommy_magyar
I agree with Mainteneer on this. Depending on the active components, I would check the datasheets of them. Particular groups of components to pay attention to: microphones, microprocessors, transformers, relays, switches. Washing may be in some cases
Electronics Forum | Thu Apr 01 22:06:58 EST 2004 | Ken
How high a voltage? TV products use hundreds of volts on the vertical and horizonatal sync circuits. Historically, these consumer products were NOT cleaned. For your situation, contact your paste supplier.
Electronics Forum | Thu Feb 10 13:54:22 EST 2000 | Kris W
Hi All, We are in the process of converting from RMA solder paste to no-clean process across the shop. This will allow me to carry my semi-aqueous cleaner out of the building and set it ablaze using the terpenes as the fire water. Then I can go ab
Electronics Forum | Sun Apr 04 10:20:26 EDT 2004 | cyclopsn
Hi Ken I'm not so sure about the voltage level but I'm dealing with backplane boards. Michael, Thanks for the information, I dont mind changing the process but I need to understand why I needed to do do. That is only my concern.
Electronics Forum | Mon Aug 31 16:30:01 EDT 2020 | emeto
I would question your motive "There's no way that I feel comfortable shipping boards after a selective without cleaning them, the amount of flux on the board is significantly more than from SMT". 1. Who said that residue should be cleaned and why? O
Electronics Forum | Mon Apr 30 22:41:29 EDT 2007 | davef
Cross: IPC nor anyone else calls out recommended pressures for washers used to clean circuit boards. IPC and the other standards setting folk are in the business of defining the expected results or outputs of processes or acceptance criterion. They
Electronics Forum | Wed Sep 25 15:58:36 EDT 2002 | bschreiber
Hello Dave, I hope that electronic slap didn�t hurt too much. Robf, I am sorry that you did not agree with my initial response, but the answer is very detailed and most of the support material I have is only in paper format so I need to either snai
Electronics Forum | Tue Oct 31 01:32:47 EST 2006 | hanocete
thanks for your reply, actually we bake the PCB assembly prior the rework because the package was exposed for quite some time already. The baking time was 24hrs @ 125 deg.C. We notice that there were flux residues on the connectors after the baking.
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