Electronics Forum | Tue Apr 09 21:40:26 EDT 2002 | ianchan
We are a local enterprise with limited resources, just like you described, so hope this experience sharing helps : we place a production Visual Mechanical Inspection (VMI) inspector at the end of each Reflow Oven area, complete with magnify scope 30
Electronics Forum | Thu Jul 05 13:47:10 EDT 2007 | arun2382
QFN assembled on a PCB indicates paramteric fails when tested. When the QFN on PCB is reflowed a second time, it recovers and passes testing. Visual, X-ray inspection revealed no anomalies. Cross-section images of solder joint revealed no anomalies (
Electronics Forum | Thu Jul 05 17:10:29 EDT 2007 | arun2382
Thanks all! I'm facing this issue with one specific batch of QFNs. It could be a plating issue. But, nothing was evident from visual inspection,No sign of voiding or non-wetting. Cross-section images of solder joints were clean as well. Could this s
Electronics Forum | Sat May 14 17:25:20 EDT 2005 | fastek
"What can be done to create economical advantages over here is review the product flow and eliminate process steps with current existing technology. Process steps that can safely be eliminated are cleaning, visual inspection, post wave assembly etc.
Electronics Forum | Fri May 13 16:23:03 EDT 2005 | patrickbruneel
PR What you're up against is the usual bottom line manufacturing "cost" I have no direct experience with CEI, but I have experience competing with low labor cost. I have to disagree with Russ that Singapore cant handle high mix low volume because t
Electronics Forum | Wed Oct 24 18:08:02 EDT 2001 | davef
1- DF1: WOW!!! How do people get these cool toys? CB: I am with the University at Buffalo Electronic Packaging Lab. http://www.packaging.buffalo.edu We have pretty much everything that is sold on the market as well as Laser inspection technologies we
Electronics Forum | Thu Oct 10 10:27:24 EDT 2019 | tsvetan
Omron is probably worst choice for AOI unless you have long series. Requires too much debug and there is always compromise between setting sharp criterias and get lot of fake errors or setting lose criterias and get boards with defects to pass OK. Y
Electronics Forum | Tue Apr 04 07:46:03 EDT 2000 | Donnie
Neil, We currently use only visual inspection with a magnified lamp and actually brush the board after the wave process to help knock off any solder balls. You wanna use an ESD sensitive brush material. Camel hair is what we use. It works real wel
Electronics Forum | Thu Jul 03 10:10:26 EDT 2014 | jorge_quijano
Hola We do AOI for most of our products, but a few ones goes to visual inspection only... -I have the inspection stations with a magnifier & some with a microscope. -I also use an "inspection mask" which has been very useful, it actually covers the P
Electronics Forum | Thu Jul 17 18:49:31 EDT 2003 | slthomas
So you wouldn't verify with something other than your own visual (magnified to whatever you have on hand at your facility) inspection that you could use the process without damaging the product?
Our Company handle AOI (Auto Optical Inspection) and SPI (Solder Paste Inspection) Machines.
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