Electronics Forum | Tue Aug 27 14:19:25 EDT 2019 | surfacemountprocess
They do perform well and are much easier to maintain than impeller driven pumps as there are no moving parts. The machines with electromagnetic pumps do cost more but the extra investment is worth it. One of the main benefits of the electromagnetic
Electronics Forum | Wed Feb 19 16:26:35 EST 2020 | stephendo
IPC tried to develop a standard to compare machine throughputs. The machine placement times are usually based on very few components with optimum feeder placement and a very large array of placements. Real life boards are rarely like that. Once I wor
Electronics Forum | Mon May 13 03:01:23 EDT 2019 | peterchan
Hello, sir. We are a SMT equipment manufacturer from China. We have a hot-press soldering machine that can change your current situation of manual soldering on PCB board. In addition, we have a better reflow oven, the upper and lower two cold tempe
Electronics Forum | Mon Sep 23 10:45:34 EDT 2019 | slthomas
I have seen similar things happen with over etching and bridging but frankly the most common mistake that gives us grief is a failure to use the component manufacturer's recommended land pattern and/or aperture designs. As opposed to generating a n
Electronics Forum | Mon Apr 08 14:16:29 EDT 2019 | sever_83
We've never heard of seen of such a thing either. We tried a clean sample board and applied con coat. Same process through out and we saw nothing. After speaking with the original operators who was curing the boards he had left the boards much longer
Electronics Forum | Mon Apr 29 22:25:30 EDT 2019 | pcbindex1
Besides, regulated power supply should be installed separately on the printing boards. When power and circuits share the same printing boards, it should be avoided that regulated power supply and circuit components are mixed or power and circuits sha
Electronics Forum | Sat Apr 27 15:42:53 EDT 2019 | davef
Your ppl are correct, the capacitor is not sealed. So, it is perfectly acceptable for the capacitor to have absorbed moisture. If your ppl don't either prevent moisture absorption or remove the moisture prior to soldering, their component could fail
Electronics Forum | Sat Apr 27 09:47:27 EDT 2019 | SMTA-Joe
Hello SMTA, We currently use Solder Stencils for installation/rework of QFNs/BTCs, and have tremendous success with them. While they aren't overly expensive considering their high quality it does seem like a waste of money to purchase more screens
Electronics Forum | Tue May 07 13:49:05 EDT 2019 | tey422
Like I stated before, I am not familiar with the machine. I can only make suggestions. If you found solder paste on the nozzle, clean it off to prevent part stuck to the nozzle tip. I would also check if the nozzle tips are being worn off; uneven we
Electronics Forum | Wed May 22 12:00:13 EDT 2019 | gregoireg
Thanks. It starts to make sense. There is a formula at the bottom of this page: http://www.circuitinsight.com/programs/50456.html It says: Stencil Thickness = 2.64mil + 0.0831 * pitch of component in mil. for 1.13mm, that gives exactly 0.16mm. So,
