Electronics Forum | Fri Jun 18 19:41:24 EDT 1999 | KEVIN SIMPSON
| How are you inspecting pcbs post-reflow, are you inspecting all or sampling. The type of assembly involved would be mainly chip components with a mix of actives and a few 25mil and under pitch. | If you sample what are your fault rates looking lik
Electronics Forum | Mon Apr 01 10:15:22 EDT 2013 | babe7362000
I have to agree with you. We do go by piece rate not by time. Also who is supposed to make a process, the Man.Eng., or the lead? I would think the Man. Eng and the lead should make sure everyone is following it?
Electronics Forum | Mon Apr 01 10:09:03 EDT 2013 | markhoch
It sounds as if you have your AOI set up off-line, and you're "AOIing" a sampling of the PCBs produced. If that’s the case, then the responsibility of who drives the inspection really depends on how you configure it. If it's based on the number of P
Electronics Forum | Mon Apr 01 08:09:36 EDT 2013 | babe7362000
We currently have an AOI after reflow, and I was wondering how others have thier line setup? Does the AOI operator have to get up and get a board from the oven to run, or should the SMT operator hand the AOI operator a board. The AOI operator does
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 | 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 | Tue Feb 03 06:52:45 EST 2004 | paul_bmc
About 2 years ago our company tried to go with a post reflow AOI inspection. This AOI was suppose to be able to inspect to a level class 3 product. **It is impossible** You cannot inspect for a heel fillet and inspecting for poor wetting is a very
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
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).
Our Company handle AOI (Auto Optical Inspection) and SPI (Solder Paste Inspection) Machines.
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