Electronics Forum | Fri Apr 11 14:53:50 EDT 2003 | MA/NY DDave
Hi A lot of good answers. "No verification was done on the part as it was deemed to be a "straight replacement". Sound familiar?" Yes this sounds familiar, yet I am never sure it is a new supplier or component problem. It could be that the old par
Electronics Forum | Tue Jun 06 12:27:11 EDT 2006 | flipit
Are you using 08MPF nozzles with front lighting? If so, these nozzles wear quickly if you place a lot of chip caps and resistors. I was using the 3500 vision system and found the vision recognized the nozzle once it was worn and became shiny. You
Electronics Forum | Sat May 27 02:52:20 EDT 2006 | TimS
Gentlemen I have managed to pull myself together after banging my head. I am not sure the flux volume is the total solution here. All spray processes deposit flux in a similar manner, that is to say the vast majority of material sprayed onto the PCB
Electronics Forum | Tue Jan 15 15:53:14 EST 2008 | jmelson
I only build my own products, so it has to meet my needs for QA only. I am doing some 20 mil lead pitch (0.5mm) and will soon be doing a 0.4 mm pitch part. I have more magnification on my microscopes (40X) but almost never need to go that high. If
Electronics Forum | Tue Apr 25 23:17:52 EDT 2023 | smtusa
So I visited a high tech factory that exclusively used mydata for last 20 years. They started with 1 my9, moved to 3, currently at 8 my200/300s which the whole company was proud of. They love them and credit mydata with the reason they were able to
Electronics Forum | Fri Sep 09 06:10:03 EDT 2016 | jswatt
the time between SMT & wave should be as short as possible but at a max it is controlled by strictest MSD part, so if you have a part with only a 48hr MSL window then it needs to be with the 48hrs. Can you post images of what you are getting? It may
Electronics Forum | Tue Apr 11 10:36:35 EDT 2000 | Russ
Quick question for Dave, Out of curiosity, why concave? I ask because we are soldering RNETs that come in either style and have not payed much attention to this. Russ
Electronics Forum | Thu Mar 11 03:03:26 EST 2010 | grahamcooper22
Hi , Looking at your photo....can I also see a hole in the middle of the joint on the chip component ? Maybe its not just a problem with th ejoint son diodes ? Did you also get mid chip solder balls on chips? If so, I'd almost guarantee the pcb has t
Electronics Forum | Wed Apr 25 10:37:14 EDT 2001 | davef
If you heat a BGA too quickly, the corners of the device will curl towards the ceiling [potato chip], because they come to temperature faster that other areas. Adding to this, thinner substrates tend to potato chip more and faster than thicker subst
Electronics Forum | Tue May 05 11:40:10 EDT 2015 | brianbrl
Hi Bill, Thank you for your input. You've reassured me that I've made the right decision. As for Juki, the platform and footprint were not what I was looking for. Plus a demo I had with a Juki machine in the 90's went so wrong (it gave new definiti
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