Electronics Forum | Tue Jan 21 00:44:30 EST 2014 | leardkattiya
Hi All, I have a question to ask. Do we really need ESD kapton tape to be use inside SMT line/ production? Anyway the purpose of the kapton tape is to protect gold finger/ wirebond area from solder splatter. Please advise.
Electronics Forum | Thu Jan 23 23:00:42 EST 2014 | davef
I agree with AFlex. Don't tin stranded wire that's assembled into a screw terminal block. I believe the reasoning has to do with avoiding stress on the wire metal caused by different expansion rates of the solder and the wire. BR davef
Electronics Forum | Mon Jan 27 09:24:24 EST 2014 | cyber_wolf
Dave is correct. You are running out of flux due to such a small solder deposit. Try shortening your overall time in the oven. Less than 4 minutes to peak is where I'd start.
Electronics Forum | Tue Feb 11 09:04:02 EST 2014 | patrickbruneel
It probably has something to do with the wave settings (dynamics). Check for differences between the 2 waves. For clues on what to look for check here: http://www.interfluxusa.com/Datasheets/PDF/Implementing-No-Residue-Technology.pdf
Electronics Forum | Thu Feb 13 08:52:44 EST 2014 | island2013
Are you're preheat settings the same? Are you sure you're not burning off the flux before it gets to the pot?
Electronics Forum | Mon Mar 03 13:34:39 EST 2014 | markhoch
I'd start with the paste manufacturer's data sheet. You may be surprised how wide their process window is. If that doesn't help... Can you increase the number of PCBs in your panel?
Electronics Forum | Wed Mar 05 17:46:19 EST 2014 | tombstonesmt
Very good suggestion. We have MPM Speedline printers. Typically we stick with the default after providing the board dimensions. Maybe there's some room there for improvement.
Electronics Forum | Thu Mar 06 10:25:23 EST 2014 | georgecastonguay
Depending upon the MPM machine that you are using there are options that can be installed to enhance the speed of the machine. If you would like to call me to discuss this further I can be reached at 603-895-5112 and ask for George.
Electronics Forum | Tue Mar 25 11:43:48 EDT 2014 | sara_pcb
It is Solder Mask on Bare copper, The land finish is HASL as per MIL-PRF-55110G which accepts trace of HASL as acceptable. Wetting is acceptable. regards, R.Saravanan
Electronics Forum | Mon Mar 24 11:52:43 EDT 2014 | davef
I agree with Jim. Don't do it!!! The tech from SparkFun [on the YouTube video] is giving you his hobbyist trick, which: * For hobby prototyping will work just fine. * For production work, the process is not in control and should not be considered.
