Electronics Forum | Sat Aug 11 13:37:02 EDT 2007 | shing
I am a fresh SMT engineer. I am now facing a problems, solder contamination on Golden Finger nearly about 1 year. I don't know what going on. I have checked the cleaningness of stencil, solder paste handling,IR re-flow profile and even PCB surface
Electronics Forum | Wed Oct 31 16:56:11 EDT 2007 | glenearl
Has anyone ever looked into the possibility for laser marking 1812 size X7R ceramic chip capacitors injecting sufficient energy to cause cracking when voltage is applied? If so, what were the findings? We are having failures of caps from one manufa
Electronics Forum | Sat Jun 28 13:53:07 EDT 2008 | sleech
Fowler: Thank you for your documentation. Your finding roughly coincide with our own. We also found that 70 degree baking removes 50%/60% of the ingested moisture from moisture conditioned MSD packages We ran an additional experiment that compared
Electronics Forum | Wed Mar 26 16:12:46 EDT 2008 | jlawson
If you have jobs where you can not, there is a company in Japan that makes the best v-groove depanelers called TST, 'guru's in v-groove depanelising'. Their systems can be supplied to reduce stress on cutting to near zero compared to CAB and other lo
Electronics Forum | Tue Apr 01 14:09:09 EDT 2008 | cyber_wolf
I have always heard the glory of plexi glass templates but have never seen them successfully implemented. ECR changes make this system nearly impossible when you are trying to manage thousands of assemblies. We have removed the hand cranks from the
Electronics Forum | Thu Jul 24 21:20:58 EDT 2008 | srt
Hi, Now we also facing voiding issue after rework .But this only happen to 1 BGA from diffrent PCBA.We also already change 3 type solder paste and fine tune the profile follow solder paste spec but problem intermitten happen again.Pls help to advic
Electronics Forum | Mon Aug 18 16:54:46 EDT 2008 | jlawson
Great to see running. The Vision Monitor Video comes from the Vision Processor Card, including overlay info, grids etc depending on mode you are in, like teaching etc Why is is on still I can not say, could be software version, there was several ve
Electronics Forum | Thu Oct 02 01:47:57 EDT 2008 | myleb
I'm new to SMT. Now, i'm making program for SPI machine to inscpect for solder paste of SP60-MU. I think this is a very good printer but some times, my program shows only 50-60% of volume transfer; and the average height is very high: nearly 200 pct.
Electronics Forum | Fri Oct 24 10:17:27 EDT 2008 | janz
Hello, I am trying use PMJ1800 odd form machine to place axial components. If I set clencher hight according to manual (so clencher nearly touching PCB) one lead is cleached more or one side i pulled more. I have checked clencher position and it is
Electronics Forum | Thu Nov 13 11:45:04 EST 2008 | pbarton
We have seen a similar problem. Turned out to be mechanical stress on the component caused by the method of location and clamping at ICT. Where is the component located on the assembly? Poorly adjusted clamping pillars on clamshell fixtures can cause
