Electronics Forum | Mon Dec 18 19:31:33 EST 2023 | kojotssss
Surely somewhere the cleaning or rinsing liquid gets to the other chamber. It is possible that the chemical migrates to the flush or flushes the chemical into the chamber. I have had a similar situation, high foam, injection vertical spray offline st
Electronics Forum | Fri Nov 21 15:34:16 EST 2008 | George
Does anyone know of an inexpensive way of holding small parts or boards in place in a wash basket to prevent them from moving during cleaning process.Keep in mind you want the top of the parts/boards to also get clean. Thanks
Electronics Forum | Tue Jan 31 13:05:11 EST 2006 | james
Just want to know if it is ok to leave parts in the bag with an open end. I just hate for the operators to start leaving parts in the mcdry with just the tray. I could see them damaging them, label incorrectly or mixing them up. Just want to know
Electronics Forum | Thu Feb 12 07:58:54 EST 2015 | erezah
A-610E, 10.7.4 covers solder mask discoloration. > Use that for your disposition > > In a previous > thread, Boardhouse told us "Here are a couple of > things that can affect color. * Material color > is the major, * Matte green from Enthone wou
Electronics Forum | Mon Jan 30 16:30:55 EST 2006 | GS
Hi James, it could be the problem is due to residual of cleaner media entrapped under low gap of QFP 208 and 0,5 mm lead pitch. I remember in the past we had random problems of failure at test after board wash off process (DI Water wash). We met
Electronics Forum | Fri May 14 15:03:19 EDT 1999 | lima
| | Does anyone know of any industry guidelines for the exhausting of volatiles in reflow ovens? I've seen some numbers like 1,000ppm for the oven atmosphere, but is this typical? | | | | My concern is the volatiles in my WS629 solder paste may be
Electronics Forum | Thu Jan 07 15:28:52 EST 2010 | cbart
did the boards get built by hand or via smt process (through reflow oven)? Someone asked earlier if some one touched up the adjacent joint. The answer to that question is yes. Look at how the solder tails off the smt pad away from that joint! I suspe
Electronics Forum | Thu Sep 06 12:49:47 EDT 2001 | Daniel
I am trying to convert a customer from a water wash process to no-clean but am receiving much resistance. They suspect that no-clean residue played a part in field failures they experienced several years ago. They are quoting an AT&T study that state
Electronics Forum | Wed Sep 03 17:09:23 EDT 2008 | glennster
Omid, In some cases we have been able to restore acceptable solderability by dipping the leads (one side at a time) in an active flux and then re-tinning. Usually a good visual inspection after tinning would reveal whether this was going to work.
Electronics Forum | Fri Jul 28 12:13:38 EDT 2017 | dontfeedphils
Ironically enough, inline wash system belts work well for placing on top of small assemblies inside wash basket to avoid bouncing around like you've seen. This of course assumes you have access to an old belt like that. Point being, try to find som
