Electronics Forum | Fri Jun 07 14:05:39 EDT 2024 | davidk
I wanted to open a discussion and ask about opinion: What is a normal result of the inspection of an AOI? How many falls calls per component /opportunity is bad/normal/good? How many defects per component/opportunity is bad/normal/good? What is goo
Electronics Forum | Wed Jun 19 14:40:58 EDT 2024 | davidk
Hello Carl, Thank you for your comment Obviously, we are evolving and debugging our test to get the best results ("no escapes no false calls") :) and using a combination of 3D and 2D tests. With the previous AOI, we had a much higher false call rate,
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 | 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 | Thu Jun 22 15:05:55 EDT 2017 | solderingpro
There are several different technologies in the industry today to assist in the out-gassing of flux cores. On automated soldering systems, there are two main types of perforating solder feeders: - Hole Drilling - "V" Scoring By perforating the so
Electronics Forum | Tue May 22 07:55:05 EDT 2012 | rway
Although not listed in your post, I recommend YesTech. I have been using them since 2007. We have two M1 systems, and they have been good machines. We evaluated three: YesTech, Mirtec, and Christopher. Of the three, the YesTech system caught more
Electronics Forum | Mon Apr 17 18:29:03 EDT 2006 | lit
There is learning on all brands requiring fine tuning the test parameters. The first point is not to allow defects to escape. Many brands can do a good job with preventing escapes. The struggle with all the brands becomes false calls. The companies r
Electronics Forum | Wed Sep 29 16:04:29 EDT 2010 | hegemon
In my experience, the best way to do a lifted lead inspection on a QFP is by laser height measurement. It is very difficult to consistently catch a lifted lead with only a top down camera. As you say, too many false calls, and still some escapes.
Electronics Forum | Thu May 29 08:28:16 EDT 2003 | davef
Teradyne says, "How does one evaluate the competency of a particular AOI system? At the highest level, all potential customers must judge any viable AOI system using the following qualities: * Throughput must be able to match the line rate on the man
Electronics Forum | Wed Dec 08 02:07:25 EST 1999 | Scott Cook
Tim, What Brian writes is all true. However, let em put it into a sales / marketing perspective..... The REAL issue in your situation is: Who is responsible for the failures which WILL result in shipping untested product? Typically, your customer
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