Electronics Forum | Fri Jul 01 08:52:11 EDT 2016 | davef
Borrow a gauge from one of the lines from your air compressor and add it into the line to your fluxer Go get um
Electronics Forum | Fri Jul 01 11:00:24 EDT 2016 | sachinverma
its spray fluxer we deassemble the nozzle clean and reassamble again. flux tank also clean with IPA. ya same problem in all product plz find the attachments about flux
Electronics Forum | Sat Jun 26 15:20:56 EDT 2004 | russ
Are you saying that immediately after the initial assembly process the boards work and then after these same boards sit for 15 days they don't? If that's the case I would suspect contamination maybe. what type of flux are you using and what is your
Electronics Forum | Wed Feb 21 20:00:09 EST 2001 | davef
Sounds like you received some good advice. Most of our stencils are used once a day [at most], so more often than not they are air dried. If we goof-up and need to reuse a stencil during a day when we have limited drying capacity, we wipe the lowes
Electronics Forum | Wed Aug 21 11:36:05 EDT 2002 | scwalsall
Regarding the non-adherence of this maintenance schedule......should we expect to see flux condensate on our solder joints?? Possibly leading to solder joint contamination, dry joints, solderability issues in production etc.??
Electronics Forum | Thu Feb 28 14:27:07 EST 2008 | cyber_wolf
The flux dries out and the paste sticks in the stencil apertures. As the flux dries it also causes the solder to oxidize. Hahaha ! I remember adding flux to paste back in the day to loosen it up. Do not do it ! I have been told by reputable industry
Electronics Forum | Fri May 17 10:08:47 EDT 2013 | shrikant_borkar
HI, We are facing problem of Dry solder due to QFN Grounding Solder not Drain out in Via hole. also No drain hole on PCBs now we have 15k stock. which is leading to massive Rework. We have Tried by minimizing Ground Square apertures. but no Improvem
Electronics Forum | Wed Aug 29 14:22:49 EDT 2001 | kerryn
We clean 40 - 50 stencils per day. I am having a problem with dry solder paste in some of the fine-pitch apertures. Manual inspection of every aperture is not feasible. I have checked out the StencilScan inspection system advertised on the SMTNet.
Electronics Forum | Fri May 02 08:50:08 EDT 2008 | realchunks
You're not the only one. We just got done with a batch of ICs that had a high reject rate at placement. The machine was rejecting about 70% of the parts because it didn't recognize the part. The reason it didn't recognize the part was due to the f
Electronics Forum | Fri Jun 28 06:12:27 EDT 2013 | grahamcooper22
If the soldering process isn't heating the whole package up to soldering temp then NO you don't need to keep them DRY (using a soldering iron to fit a QFP for example)....but if the soldering process is done on a rework station or in a manner where t
