Electronics Forum | Fri May 27 05:16:28 EDT 2011 | aj
Hi, There are quite a few suppliers so you could have a lot of work on your hands trying them all. Do a bit of research finding out what paste all the big guns use? they spend a fortune doing evaluations etc But you should get at least 3 different
Electronics Forum | Mon Jul 26 20:57:55 EDT 2010 | davef
It depends. Read "Evaluating Solder Paste - not an Option" by Phil Zarrow, ITM Consulting
Electronics Forum | Mon Aug 10 21:41:31 EDT 1998 | Dave F
| What exactly is the criteria needed to determine the right solder paste. I have been fortunate enough in the past to have a solder paste work "halfway" for me and to modify the reflow profile or simply just "drop in" a paste and monkey with the pro
Electronics Forum | Fri Feb 05 14:39:50 EST 2010 | gregcr
Hi All, We evaluated and approved KESTER R520A for our default RoHS solder paste a couple years back. It's time to re-evaluate to see if this material is still the best choice. Please let me know your opinion on the solder paste you are using, and
Electronics Forum | Wed Nov 08 08:12:16 EST 2006 | jnaligan
hi... try evaluating eco solder paste Sn96.5/Ag3.0/Cu0.5 from Senju... output is good and i suggest your stencil's apperture ratio with the pad 1:1 when it comes to fine pitches...and BGA pads regards, janry
Electronics Forum | Tue Jul 27 08:03:55 EDT 2010 | scottp
You have to figure this out for yourself for your paste. When I evaluate solder pastes I require good tack, no solder balls, and proper wetting after 4 hours at "reasonable" ambient conditions. I also print boards and put them in a temp/humidity ch
Electronics Forum | Tue Jul 02 15:50:28 EDT 2002 | blnorman
FIrst, be a doubting Thomas and never trust supplier propaganda sheets, do your own testing. How often do you knead the paste? We have a standing requirement that if the paste printer is idle for 30 minutes, we have a minimum of 4 kneads before pri
Electronics Forum | Mon Apr 07 19:12:13 EDT 2008 | kircchoffs
can we use the expired solder paste and put in a solder pot of wave machine?
Electronics Forum | Mon Jan 10 03:11:11 EST 2000 | Wister
Hi,how to control the solder paste,condition as belows? place at room temp.or put it into refrig.again if the unopened paste has been warmed up 8 hours but it would not been used at once in case of schedule changing.Assuming that this solder paste wi
Electronics Forum | Tue Sep 22 10:05:00 EDT 2009 | roland_grenier
Does anyone know how to calculate solder paste volume required to run a PCBA on an SMT line? I'm looking for a solder paste volume model which include paste waste. Roland
