Electronics Forum | Wed Oct 12 13:49:17 EDT 2005 | russ
Most likely happening during the cooling phase. I also produce many of these joints with no reliability, DOA, or field failures to date (thousands upon thousands). Contact your paste supplier and they will give you the technical stuff on what you a
Electronics Forum | Thu Oct 20 06:03:23 EDT 2005 | Slaine
during the soldering process on larger BGAs the corners can bend up or down due the large copper heatsink on top expanding quicker than the material the bga is made out of, in the worst cases this can lead to to the balls lifting out of the paste and
Electronics Forum | Thu Nov 02 15:45:04 EDT 2017 | dleeper
For low volume hand assembly, deionized water or IPA should work fine.
Electronics Forum | Thu Nov 02 13:17:06 EDT 2017 | jardcrocker
Hi...i have a question. After you solder a circuit board, what do you wash the flux residue off with? I am hesitant to use water for fear of subsequent corrosion, and have no clue as to what kind of flux is in my solder wire. automated pcb assembly
Electronics Forum | Tue Mar 05 03:58:10 EST 2019 | pcformax
Hello guys, In our company we use CS-FLUX for reballing purposes in the last two years and we have no complain about the product.if you want to see details about the product there is a very helpful tutorial in youtube named 'ATI GPU removal with the
Electronics Forum | Tue Feb 11 14:05:11 EST 2014 | dontfeedphils
I can't speak too much as to why your joints are appearing dull, even with the booster. I can recommend a new chemistry that Kyzen has out that I've been running for about a year now. Price is about the same, it can be run at low(er) concentrations
Electronics Forum | Fri Nov 03 09:31:35 EDT 2017 | davef
On the flux reside issue that is gumming up your test probe pogos ... Short term, clean what's in process with a aerosol flux cleaner solvent. Ask your flux supplier for recommendations. Longer term, recognizing that there is no fix, your improveme
Electronics Forum | Fri Nov 03 11:30:29 EDT 2017 | davef
regarding dwl comment, "For low volume hand assembly, deionized water or IPA should work fine." Deionized water: Deionized water is corrosive. It needs to be removed. Proof? Drop a copper coin into a covered jar of DI water and watch what happens ov
Electronics Forum | Fri Nov 03 15:43:20 EDT 2017 | dleeper
IPA and DI water are both very common and effective methods of cleaning PCBAs. http://www.zestron.com/sa/cleaning-applications/smt-electronic-cleaning/pcba-cleaning/aqueous-cleaning.html http://blog.gotopac.com/2010/11/18/ipa-as-a-universal-cleaner
Electronics Forum | shellydhami |
Sat Jul 05 14:04:31 EDT 2008
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