Electronics Forum | Tue Feb 15 00:27:39 EST 2011 | jeffr
First clean and de-bur the hole in the nozzle, then try it again. If the Head does not pick up at the feeder, then moves to the dump position...it means that the Vacuum Sensor Board has detected that the nozzle vacuum is above the LOW threshold setti
Electronics Forum | Tue May 15 21:57:06 EDT 2001 | davef
Welcome!!! Where the hay ya been??? Sorry bud, were lining-up with your fab [it hurts me to say that, but when yer ] We used to dry pack with desiccants, also. Its probably an old MIL-STD-2073-1C requirement [er something like that]. We qui
Electronics Forum | Mon Sep 10 17:52:30 EDT 2001 | mparker
Are you doing actual measurements of the dummy parts placements? or are you just doing a visual go/no go check? If doing actual measurements, be sure to use mil inch units of measure rather than mm. Mil will give you more accurate readings. mm force
Electronics Forum | Mon May 21 17:32:23 EDT 2001 | davef
I said: "Our electronic circuit board fabricators seal the boards in moisture barrier bags [MBB]. We discontinued the use of desiccant bags in these MBB because of concerns about the desiccant releasing materials that would affect the solderability
Electronics Forum | Wed Mar 23 19:57:18 EDT 2011 | dlou87
Im sure this has been gone over before, but what the heck! We are mounting LEDs on metal core PCBs. Almost all of them have domes of silicone on top. We have some large boards (largest is 2ft x 3") Not concerned with parts/hour or fancy features.
Electronics Forum | Wed May 03 13:35:00 EDT 2023 | ttheis
Thanks, Deni! We're replacing two 4-spindle GSM's with two GX-11S with Flex3 front and IL4 in the rear. These we plan to use a mix of our pneumatic & 24V feeders as well as high speed feeders as we acquire them. The sellers advised that the 24V kits
Electronics Forum | Thu Aug 12 00:02:29 EDT 1999 | dean
| We currently have 32 LEDs per board and are looking to change the LED from a gull wing package to another package. (possibly a chip type package). I have heard that some cases and LEDs do not like reflow. This part is not cost effective to have to
Electronics Forum | Mon Jun 19 09:47:23 EDT 2017 | georgetruitt
You have a lot to think about! What does the flux manufacturer recommend as far as specifics like water temp or pressure? Do they recommend high temp di-water a detergent or saponifier? Do you currently have a cleaning machine, batch cleaner or inl
Electronics Forum | Wed May 24 19:46:32 EDT 2006 | JohnM
So, it looks like the backward compatible of BGA statement is not guarantee for solder joint reliability. It doesn�t matter what temperature and what melting sequence we have in order to avoid the solder void issue. Is Pb diffused homogeneously thr
Electronics Forum | Fri Oct 28 04:56:12 EDT 2016 | lilybell
I read a few posts here about resistor in led applications. The thing is, the resistor has clarified as this shows:was always use with a power source delivering a higher forward voltage than the led could tolerate(ex: a 9volt battery hook up to a 3w
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