Electronics Forum | Tue Jul 29 13:20:55 EDT 2008 | gabriella
330 000ppm on low volume. what is the parameter you are talking about? PPM on AOI?
Electronics Forum | Tue Jul 29 13:27:49 EDT 2008 | jdd
PPM on AOI, this is our metric for false fail on AOI machines. Our target is 1000 ppm but I'm not sure about this target for low volume. (1,000 false fails on 1000,000 of inspections) thanks
Electronics Forum | Wed Jul 30 07:39:18 EDT 2008 | lococost
Anyone else? This is an interresting question. With 1000PPM won't your AOI be worse then the process it is supposed to measure? Won't your AOI become more of a bling thing to impress customers than an actual usefull tool to improve process quality
Electronics Forum | Thu Jul 31 18:46:58 EDT 2008 | jdd
We are in the process of determine our target. We are inspecting with all the options Presence, Joints, OCV, Polarity, etc. What would be an average of ppm on AOI? 1000, 5000, 10000? Low volume - High mix. our machines are Agilent SJ50 Series 3
Electronics Forum | Thu Jul 31 09:01:32 EDT 2008 | stepheniii
Aren't you worried about false passes? With that low of false fails, you must be only inspecting easy stuff like presence and not checking for correct parts.
Electronics Forum | Thu Aug 07 22:56:50 EDT 2008 | dlocampo
First all, you must define the specific defects that you wanted to screen out by your AOI system based on its capability, so you can allocate the undetected defects on your other means of inspection methodology. Then optimize your AOI inspection para
Electronics Forum | Wed Jul 23 12:01:28 EDT 2008 | Jdd
Can anybody know the acceptable PPM (part per million) on AOI machines on Low volume-high mix also on High volume-Low mix. We are a Low volume-high mix company, we have Agilent SJ50 Series 3 machines Can anybody have the idea how many PPM are good
Electronics Forum | Fri Aug 01 08:49:54 EDT 2008 | stepheniii
I don't know about that machine but 5000 wouldn't suprise me. And make sure your targets is less than X false fails with zero false passes. I can probably get zero false fails with any machine but I"m sure a lot of defects would get past that machi
Electronics Forum | Fri Aug 08 13:21:14 EDT 2008 | RobP
With AOI it really depends on what you are testing. Not only what criteria, but what different types of components. We run a high volume low mix application for automotive checking for presense, positional accuracy, and all solder joints. We curre
Electronics Forum | Fri Sep 20 14:23:50 EDT 2002 | larryk
PizzaFred, Scott mentioned lots of good ideas. Take one of your boards to each vendor and see what it takes to program the board how long it takes for it to become online. I've found some that are easy to program, but require 40 or more assemblies to
.gif)
