Electronics Forum | Wed Sep 10 16:09:45 EDT 2008 | vladig
To me it speaks about teh quality of the engineers. I[ve seen both types, though Vlad
Electronics Forum | Thu Sep 11 10:18:15 EDT 2008 | gregoryyork
Sorry all I know is that storing the paste Tip down the flux will run to the tip of the cartridge so will be runny initially then dry up as you use the cartridge. Unless the Rheopump mixes it before application
Electronics Forum | Thu Sep 11 10:25:51 EDT 2008 | rarnold
Flux is less dense than metal so it 'floats' to the back NOT the tip when the tubes are stored tip down.
Electronics Forum | Thu Sep 11 11:11:31 EDT 2008 | gregoryyork
Yes sorry you are right so you have answered your own question anyway. Dry to start runny at the end
Electronics Forum | Thu Sep 11 12:38:45 EDT 2008 | vladig
I'm curious how many knobs have left to be turn? :-) Isn't time an issue in a production environment? Vlad
Electronics Forum | Mon Sep 08 05:23:11 EDT 2008 | milas
Hi We are designing a new pcb which contains sensitive analogue circuitry, where tiny leakage currents could dramatically affect product performance. Should I build this product Clean or a No-clean chemistry set ? Thanks in advance
Electronics Forum | Tue Sep 09 08:09:28 EDT 2008 | ck_the_flip
Try the "straw test" to test for ionic contamination. For reference, here it is from the fine SMTNet archives: http://www.smtnet.com//forums/index.cfm?fuseaction=view_thread&CFApp=1&Thread_ID=496&#Message3044
Electronics Forum | Tue Sep 09 06:29:27 EDT 2008 | arzu
i'd like to have design information about how to produce membrane switches using the screenprinting process (making silver traces, buying /placing domes) Who knows where to find information? (we normally only produce the artwork)
Electronics Forum | Thu Sep 11 13:51:57 EDT 2008 | stepheniii
How are they being stored and handled? It might be an MSD issue. I think IR reflow would be a worst case scenario.
Electronics Forum | Wed Sep 17 08:51:10 EDT 2008 | 18424
We have seen this same defect. Led's not blinking during test and some tops popping off. Ended up being an msd problem. most of the lite-on components are msl level 4-6. We now bake and track them no problems seen in a while.
