Electronics Forum | Mon Jul 28 14:30:22 EDT 2008 | grics
Take a look at this. Remember, these are only guidlines and can not replace any paste specs. As Real Chunks said, a profiler will be of HUGE help. We use this to determine what our top side temps are and to see if we have any problems with heat sen
Electronics Forum | Wed Jun 03 12:02:42 EDT 2009 | joeherz
Greetings, We have a potential job coming up that would require coating with a silicone material (Humiseal 1C51 or equivalent). The volume will be high (in the 1000s/day). This is a low complexity, small card about 2.5" square in a 6up array. Onl
Electronics Forum | Tue Oct 13 12:32:43 EDT 2009 | davef
2.6.3 Test Pad Location Tolerances, third bullet. Why does Entek require different test point spacing than other surface finishes? Page 55, top image is off the page, partially. 2.3.6 Depanelization of Arrays, 10th bullet [Breakaway Scoring] refers
Electronics Forum | Mon Oct 19 19:40:34 EDT 2009 | swag
Thanks for the input. These are 80 pin fine pitch connectors on arrayed flex circuits. We have found from experimenting there is really no good alternative but to use local fids. I found what I'm doing wrong - I needed to move fid finds and correc
Electronics Forum | Mon Feb 08 20:18:39 EST 2010 | city4497s
Hi I'm looking for a auto mold machine for PCBA application in singapore, anyone have any recommendation. My PCB size is 160mmX42mmX0.6mm, the units are arrange in array form and there are about 12 ~ 20 unit per strip. the mold size is about 15mmX5m
Electronics Forum | Wed Jun 13 09:20:40 EDT 2012 | swag
We've had our share or troubles with this over the years. Flex arrays are the worst. If you machine allows search box sizing, make sure the x/y coordinates of the fids are perfect (CAD #'s only as always!) then make the search box as small as possi
Electronics Forum | Fri Jul 04 07:11:43 EDT 2014 | padawanlinuxero
Hello We work with a TP9-4 and a MY12 both with tray wagons, I like a lot the tray wagon, for big components we use it, but like AVFM we build our own pallets, and some of them were big 3x30 array or even bigger all pallets were done in a ESD mater
Electronics Forum | Tue May 03 15:10:24 EDT 2016 | proceng1
These were strictly SMT boards, so no preheat was required. It was interesting watching the output from the thermocouples since the board was essentially in 3 oven zones at once. I had over 110C delta end to end. The boards were 48" long, but only
Electronics Forum | Wed Apr 13 10:05:58 EDT 2016 | donnie15
I am working on soldering an Large LGA module to a PCB and am having some issues with opens due to variation in the board flatness. I have tried adding more paste but get shorts and excess flux as I get above a 7 mil stencil. I have tried adding sol
Electronics Forum | Thu Apr 21 20:09:18 EDT 2016 | adamjs
I have tried adding more paste but get shorts and excess flux as I get above a 7 mil stencil. You do need the thicker stencil. To prevent the shorts, you need to have your pick-and-place machine probe the exact height of the board (at multiple loca
