Electronics Forum | Mon Oct 03 05:10:19 EDT 2016 | robl
Hi Nikhilesh, It was a long time ago, but we used to buy the nickel in reels then had a cut and feed station on the smt machine with selectable sizes. We did many types of boards in very large volumes, and usually the Nickel strip was soldered to t
Electronics Forum | Wed Feb 12 14:38:18 EST 2020 | SMTA-Alex
There are several areas you can check. Your profile is very fast. You reach the peak at around 3 minute mark. That's not enough time for the fillet to form. Try to slow down your belt speed to around 90-95, to give it more time. Also, your temperatur
Electronics Forum | Tue Feb 11 13:22:22 EST 2020 | rgduval
Sebas, I suspect that your finding of needing the fillet for the card to work is a false finding. One that I dealt with for many years in assembly. As a bottom terminated device, a fillet to the side terminals of the device is not required. Adequ
Electronics Forum | Fri Feb 06 09:11:40 EST 2004 | stefwitt
Hi Pete, thank you for your positive feed-back. I was told by a carrier tape vendor, that the tape can�t be re-used for heat sealing. I made some tests myself and found, that if you are going to use exactly the same seam, the cover tape came off quit
Electronics Forum | Sat Apr 11 09:56:31 EDT 2009 | davef
You're correct. You should expect to see an intermetallic layer in a proper solder connection. Try leaving the component at temperature for a longer period. Growth of intermetallic compounds on Cu surfaces [Klein Wassink]: d = 10^3(exp(-5*10^3/T)t^1
Electronics Forum | Thu Jun 23 07:30:04 EDT 2011 | SBecmpe
That is a very interesting concept. It sounds very time sensitive and would require some specialized equipment to achieve consistant results. Unfortunately I don't have any experience welding anything that thin. If you ever figure it out I would be i
Electronics Forum | Thu Jul 26 09:14:17 EDT 2018 | teresat2
When the PCB is finished, it must be mainly tested. Mark the broken plate of the short-circuit broken wire, or SMT may fix you later. In the case of Mosaic, the same location of the bad packaging together. Next is SMT welding commonly, want to look f
Electronics Forum | Sun Jan 20 17:04:52 EST 2002 | arzu
I used to twist them sometimes at times that there were no alternatives. it works fine for a quite a while, than you have to cut and twist them again. I tried to weld them too, but it did not succeed. Further I heard that hard-soldering them (with a
Electronics Forum | Thu Sep 03 10:13:38 EDT 2009 | markgray
Our wave started leaking a year ago. We welded, patched inside and outside the pot with metal patch. This works if you leave your wave on all of the time. If you turn your pot on and off consantly, the temperature cycles will bring the crack back. Ty
Electronics Forum | Mon Jun 12 07:52:21 EDT 2017 | tch
We have had this issue on our Delta 3 waves and determined that there are small pin holes in the solder pot. We had plates welded to the outside of our solder pot on the lead free wave and this bought us enough time until we could replace the wave, a
