Electronics Forum | Tue Sep 22 06:07:02 EDT 1998 | jacqueline coia
need advice to point me in the correct direction for solution to the problem of unsoldered joints which look soldered under normal visual inspection, but when pull strength test is performed the leads are coming away from pad, no strong intermetallic
Electronics Forum | Sat Nov 07 14:05:43 EST 2009 | doremi
Hi, I have 4 years as an AOI Process Engineer and we are working with 3 types of AOI - Marantz 22X, VI3000 and Omron (RNS & VT-WIN2). For solder joint inspection (solder meniscus quality, insufficient solder, wetting problems, shorts (bridges) Omron
Electronics Forum | Thu Jan 09 19:55:14 EST 2014 | padawanlinuxero
Hello! I have a problem with one of the products here, we use a pallet to run the board on the solder wave, when the board gets solder and you inspect the board you notice that for some reason the first pcbs that touches the wave are ok, even a litt
Electronics Forum | Fri Oct 30 12:48:59 EDT 2009 | dannou
I've been the AOI programmer for around 5 years now. The equipment I use is the Orbotech VT-9300 & VT-9500 systems. The programming isn't too difficult, mostly Grey-scale shadow measurement through application algorithms. Three levels of lighting an
Electronics Forum | Thu Oct 29 21:16:15 EDT 2009 | mah115
Fellows, We are considering getting an AOI machine to inspect boards that our vendors are giving us (we outsource the assembly of PCBAs). We have low volumes of boards, but every time a defect does slip by our human inspectors, it causes a lot of
Electronics Forum | Wed Jan 28 14:35:12 EST 2004 | swagner
Has anyone in the industry had even a fair amount of success inspecting reflowed solder joints to IPC class 3 standards? I am not interested in hearing from system reps or people who work for an AOI manufacturer. Thanks,
Electronics Forum | Mon Feb 02 17:52:11 EST 2004 | swagner
We are not having a problem, we have a customer that would like us to use post reflow AOI to inspect the solder joints to class three. I would like to see if anyone is having sucess doing this.
Electronics Forum | Mon Feb 02 12:36:41 EST 2004 | paul_bmc
90% of the assemblies our company produces are class 3 and we have no problem at all inspecting or getting class 3 quality through reflow. Rarely do we have touch up because of insufficient or poorly reflowed solder joints. What are the problems you
Electronics Forum | Tue Feb 03 12:24:56 EST 2004 | swagner
Paul, do you have any kind of false failure data for the application you struggled with? Also what amount of manpower did you use to operate the system(s).
Electronics Forum | Tue Feb 03 12:39:20 EST 2004 | paul_bmc
We had the data at the time and it was quite high. More false calls then anything. I do not have the data anymore it since has been archived. When the system was introduced we had 1 engineer and 2 operators trained for programming and running the
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