Electronics Forum | Wed Mar 12 10:25:29 EST 2003 | davef
J-STD-001C, 7.2.1 Flux Application says words to the effect of: When an external flux is used in conjunction with flux cored solders, the fluxes shall be compatible. Regardless of whether these are or not flux cored solders, this begs the question:
Electronics Forum | Tue Jan 25 15:13:34 EST 2000 | Dave H
Kris, Weigh very carefully the above caveat with regard to IPA. I would ask for documentation to substantiate this claim, which likely stems from a desire to sell "his" chemistry, while "slamming" competition. I'll be happy to run some tests for you
Electronics Forum | Thu Jan 27 11:23:45 EST 2005 | russ
Well first off I wouldn't evaluate paste for a wave process. I would use solder bar instead. Flux - top side fillets and no shorting on the solder side, does it clean well after processing if using water soluble flux. How wide is the process win
Electronics Forum | Thu Aug 21 23:35:20 EDT 2003 | kennyg
For ICT purposes I may need to print solder paste on 0.015" test vias. No-clean is not an option for this assembly and OA seems the only choice. Can flux be safely removed from inside the via from the other side during a standard water wash process
Electronics Forum | Tue Oct 28 14:18:41 EDT 2014 | tombstonesmt
Spoke to the maintenance manager, master password is the current date in reverse. For example : Today is 10/28/2014 so... 41028201 Level 3 should be pass3. Hope this helps.
Electronics Forum | Tue Jan 14 07:33:16 EST 2014 | leardkattiya
Hi I have solder paste that suppose to be stored to 0 - 10 degree celsius. However due to broken fridge, we decided to stored on -40 degree celsius freezer. Does the solder paste still good to be use? Please help.
Electronics Forum | Wed Jan 15 08:47:49 EST 2014 | leardkattiya
Just completed doing the evaluation. The reflow looks good. No unreflow observed. Meaning to say the solder pastecan be use right. Thanks.
Electronics Forum | Wed Jan 15 03:07:47 EST 2014 | aflex
If the supplier has prescribed the storage temperature between 0 - 10 degree celsius, then it means that it work effectively if stored in that temperature range.
Electronics Forum | Wed Dec 24 12:01:36 EST 2014 | emeto
Hi, I think that the jet printer is going to work for your process - the key with this device is to maintain it really good so you don't get any clogs. These are very fast devices.
Electronics Forum | Thu May 26 08:52:42 EDT 2011 | davef
Phil Zarrow wrote a useful paper that could help in evaluating paste. Here read it ... Evaluating Solder Paste � Not An Option Contributed by Phil Zarrow of ITM an Independent SMT consulting firm With soldering being the dominant source of assembly
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