Electronics Forum: calls (Page 1 of 334)

AOI False calls

Electronics Forum | Thu Mar 19 15:12:11 EDT 2009 | sys_steven

What model?

AOI False calls

Electronics Forum | Thu Mar 19 06:58:37 EDT 2009 | cyber_wolf

I am being told that boards that are "just out of the reflow oven" show more false calls than a board that has cooled down. Can anyone give me some insight on this ? Thanks, Sr.

AOI False calls

Electronics Forum | Tue Mar 31 12:43:52 EDT 2009 | dallascap

I don't think there is anything releated to IR light in your false calls rate rise on Post-reflow. Soldering Flux is most probably the reason. Indeed, more or less soldering flux residue condenses on the boards according to the oven extraction syst

AOI False calls

Electronics Forum | Thu Mar 19 08:20:06 EDT 2009 | cyber_wolf

Our AOI's are image based.

AOI False calls

Electronics Forum | Thu Mar 26 21:03:24 EDT 2009 | bigdaddysoy9

I have noticed this on some of our large multi-circuit panels. It's such a slight rise in our false call rate that I haven't really explored it. I'm just guessing that it has something to do with the fiducials calculating the twist/shrink of the boar

AOI False calls

Electronics Forum | Thu Apr 02 17:55:29 EDT 2009 | smt_guy

Is there any effect when using Water Soluble Flux as they tend to be thicker and darker after reflow. How does AOI machines react to this? regards,

AOI False calls

Electronics Forum | Thu Mar 19 08:12:11 EDT 2009 | stepheniii

Some digital cameras absorb IR light that is invisible to us. It's standard for digital cameras to put an IR filter in front of the CCD. Maybe your machine doesn't have such a filter for it's CCD or it isn't 100% effective. I will have to ask out

YesTech F1 AOI false calls and misses

Electronics Forum | Mon Apr 02 09:57:18 EDT 2012 | vparis

Our company is having issues with our YesTech F1 AOI machine the programs are currently not utilizing this machine correctly. we are have a false call rates of about 5% to as high as 12% of the total number of inspection points. I have started to rep

AOI false calls with 3D AOI

Electronics Forum | Tue May 10 10:59:47 EDT 2016 | dtewatt

Hi All, I've been told that 3D AOI machines are a solution to the false calls that you get on a 2D machine, but I don't really see how the depth information can help in eliminating false calls for unreadable markings, misregistered parts etc. For s

YesTech F1 AOI false calls and misses

Electronics Forum | Wed Apr 04 13:33:12 EDT 2012 | rway

We currently have 2 M1 systems. Our false call rate has never been has high as you suggest. There is something wrong with your program and/or inspection algorithms, as you probably already know. You should be somewhere between 1000-1500 vcpmo (fal

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