Electronics Forum | Wed Apr 08 16:16:35 EDT 2009 | rkevin
I am looking to use a no clean and want to stick with SAC305 Steve, What would you recommend from Aim ?
Electronics Forum | Wed Apr 22 23:25:15 EDT 2009 | jandon
We were using AIM WS485 SAC305 and AIM NC257 SAC305 and we had problems with voiding and AIM�s narrow process windows. Now we are using Indium3.2 and Indium8.9 with much better results.
Electronics Forum | Sat Apr 18 17:42:07 EDT 2009 | billwestiet
I like this suggestion the best as a "band aid", check out some of the low tombstoning solder pastes. I've seen these work.
Electronics Forum | Tue May 05 11:08:43 EDT 2009 | timo
Check out the attached and compare your issue w/ the issue in the attached. If it's 'beading' versus 'balling' - check thru the punch list and if you've addressed all those potential causes - then it may be paste specific. The Sn/Ag alloy choice is
Electronics Forum | Mon Jun 15 06:59:59 EDT 2009 | davef
Helloooo Germany. Innolot solder paste is a product for harsh environment vehicle electronics that Cookson Electronics developed to improve SAC387, look here: http://www.soldertec.com/SITE/UPLOAD/Document/Conferences/Brown.pdf
Electronics Forum | Tue Jul 07 08:42:49 EDT 2009 | ewchong
kpm, you are probably right. under magnification those two pads show some exposed copper which means that they were contaminated or had insufficient solder paste before reflow.
Electronics Forum | Wed Aug 26 20:58:52 EDT 2009 | mika
Hi, Just as DaveF said; please give us some more information. It could be a a´lot of things. For .ex. Do you by any chances solder with Ni/Au at the board?
Electronics Forum | Fri Aug 28 05:22:47 EDT 2009 | sachu_70
Would suggest you have a re-look at your reflow profile. There could possibly be a higher thermal demand to solder the Pb-free version of these screw terminals considering that external plating has changed.
Electronics Forum | Tue Aug 04 15:53:27 EDT 2009 | emanuel
Maybe it will sound a little obsolete, but I need to know if there is or where to get a software package to be used with a CAM/ALOT dispenser for solder paste. Is there a dedicated program or any kind of gerber translator out there?
Electronics Forum | Mon Aug 10 12:28:17 EDT 2009 | davef
We don't know dip about your Linear Tech LGA118, but we agree with published reports that say you should have between 4800 and 7000 thou^3 of paste on the pad for a LGA. These volumes were analyzed based on volumes found successful for CGA and then e
