Electronics Forum | Fri Oct 03 10:23:29 EDT 2014 | emeto
1. Pad design. Most of the tombstones are result of wrong pad(land) design. One pad is significantly bigger than the other or the metal laying under one side of the part is much more than under the other side. 2. Part placement - should be in the ce
Electronics Forum | Mon Sep 29 13:36:01 EDT 2014 | dustin
I came into work this morning to an error on one of my printers. After powering on machine, the error MACHINE DOWN popped up in the top left corner of the screen. I have the giant manual and could not locate a solution for this error. I have checked
Electronics Forum | Fri Oct 31 09:26:08 EDT 2014 | rgduval
I do not recommend ever leaving the top of a via-in-pad open. Cap the via in the pad. Leaving it open for "solder to stuff the hole" causes issues in assembly, notably insufficient solder due to vampirism (the solder wicks into the via, rather than
Electronics Forum | Wed Jul 15 18:04:43 EDT 2015 | mikekeens
If it is important to have vias within thermal pads to help dissipate heat i would recommend using solder mask to stop the solder from wicking down the holes and resulting in insufficient solder. Some further info can be found here:- http://www.surf
Electronics Forum | Tue Oct 07 22:15:12 EDT 2014 | padawanlinuxero
How to avoid /reduce warpage in long length PCB & > _1.6MM THICK PCB. You need to put it in a fixture or pallet to run it in the reflow oven, most common material use here is durostone for the pallets that we run in the reflow oven, we use Durosto
Electronics Forum | Tue Oct 21 05:28:37 EDT 2014 | rob
Hi Emanuel, Chingyi do quite a wide selection of rubber tipped nozzles http://www.chingyi.com.sg/solutions_smt.php If you are in Europe, then Wilfred @ Europe-SMT knows these machines better than most: http://www.europe-smt.com/ Our personal favo
Electronics Forum | Fri Oct 17 16:31:53 EDT 2014 | dyoungquist
Per IPC-A-610D: Target is 100% vertical fill but 75% vertical fill is acceptable for Class 1,2,3. Only needing 75% fill of the barrel when soldering plate through on an 0.093" thick board with our selective solder has been a life saver at times.
Electronics Forum | Wed Oct 15 23:49:42 EDT 2014 | padawanlinuxero
Rob, I couldn't write it better, really sometimes we mess up a pristine surface mounted pcb with the nasty ol'flux, but anyway a flying probe is that a set of needles touching a pristine surface of a pcb, to test different components, try in youtube
Electronics Forum | Tue Oct 14 09:21:38 EDT 2014 | rgduval
Thanks, Tushar, we might give that a try. The only reason I'd lean away from it is because I've been able to determine that I can't get the nozzles to move down on head 2 in the manual screen (or move the theta). I may be chasing two problems, but,
Electronics Forum | Tue Oct 14 14:08:22 EDT 2014 | dilogic
No, each card in LP servo rack drives only one motor. But there is an servo cotnroller board (actually 3 of them) in the VME rack (where all computers are). Third one from the left(slot13) controls head2 theta and z axis. That might be a cause of you
