Electronics Forum | Fri Oct 14 17:08:36 EDT 2005 | Mika
What? That is easily done. With a 127 micron stencil thickness and apertures made for a QFP 0.5mm pitch... Remember from school of how You squeeze a media under a certain presure (like air), from a bigger diameter towards a smaller nozzle, You will i
Electronics Forum | Thu Apr 06 03:17:45 EDT 2006 | Slaine
we have more of a problem with transfer of salts from skin onto the products. Oils ect can be cleaned off in our solvent based cleaning system which we put everything through, but the only way to remove salts is with warm water. And we dont use a wat
Electronics Forum | Wed Jun 05 14:43:33 EDT 2002 | davef
Steve, As a reason for cleaning no-clean flux res: Well, maybe some of Por's products / customers can live with NC flux res, while others cannot accept it. So, rather than running two fluxes Por finds it simpler to clean the NC flux res. For us,
Electronics Forum | Thu Jun 06 02:52:42 EDT 2002 | ianchan
Hi mates, just my 2cents worth... some folks (like us) have product runs that have BGA using no-clean, coupled that with Class3 IPC-A-610 specs, topped with aerospace/military customer defined specs. we end up cleaning NC with a degreaser machine w
Electronics Forum | Tue Apr 06 00:18:07 EDT 2010 | dekhead
I have always had success using the Dupont sontara material... many suppliers offer. Recently have two customers of mine who swear by the results using the Aquavator for lint free and cleaning result without solvents. http://www.dekhead.com
Electronics Forum | Fri Jan 03 10:55:57 EST 2003 | slthomas
I'm not sure what you mean by "standard auto valve stem". Ours use EFD pumps to dispense fluid. I think there used to be a sort of a drip system that attempted to wet the entire length of the paper all at once but have never seen one. Which system
Electronics Forum | Mon Feb 21 05:59:40 EST 2005 | aj
All, I know this is not Production/Process related but I decided to post it just to find out if this has happened elsewhere. We have a SMT Operator who has worked at SMT for over 6 years now,he has recently developed some sort of Skin problem on hi
Electronics Forum | Fri Oct 07 16:39:19 EDT 2005 | pjc
Here are some: Mfr. Model Flash Point Tel Nr. Kyzen Ionox 13400 170 F +1-615-831-0888 Zestron SD 300 106 F +1-703-589-1198 Zestron VD 143 F Zestron
Electronics Forum | Sun May 13 21:02:34 EDT 2001 | djarvis
Gary, You're not trying to clean these boards with Iso or other solvents after using no-clean solder paste? That'll do it.
Electronics Forum | Wed Jun 14 14:23:29 EDT 2017 | emeto
Sr. Tech, Just think about it. How do you clean your stencil after you finish the job? Dry wipe and put it on the shelf? Dry wipe will work to some extent for simple boards, but your stencil will never be perfectly clean like if you use solvent. You
