Electronics Forum | Thu May 13 01:14:37 EDT 2004 | vincent
hi, i have a question relating to fiducial, is the fiducial normally comes with the pick and place data from the custommer or we have to define it by ourself? how to set its coordinate so that the cp6 and ip3 (using Fujicam software) will be able to
Electronics Forum | Thu May 13 10:43:34 EDT 2004 | rob_thomas
hi, i have a question relating to fiducial, is > the fiducial normally comes with the pick and > place data from the custommer or we have to > define it by ourself? how to set its coordinate > so that the cp6 and ip3 (using Fujicam software) > w
Electronics Forum | Mon Jun 13 15:19:11 EDT 2005 | Stefan
I guess, since nobody is using local fiducials anymore, we forgot how to program the fiducials. Was it in the component-package file or in the placement file? Nevertheless, once you find the place, where you enter the fiducial position, you'll find t
Electronics Forum | Mon Jun 13 09:17:05 EDT 2005 | russ
Some machines may require that the two locals be used to calculate a center point where some (probably most) just use them as a second positional identifier. The fiducials are programmed as just XY and just prior to placement the machine will read th
Electronics Forum | Sun Jun 12 12:10:14 EDT 2005 | Sven
Hi all, I agree with all the postings above, but I have a few ammendmets: (How is my english so far?) The purpose of the so called "local fiducials" was in the old days, when "board stretch" was a factor. At least people think that was a big matter..
Electronics Forum | Mon Dec 06 17:17:57 EST 1999 | Brian W.
I have not used a vision inspection system for this. We used a digital x-y coordinate measurement system. With this, we could find the center of the part and then measure where it was in relation to a fixed point, like a fiducial. Some of the syst
Electronics Forum | Sat May 25 20:09:50 EDT 2002 | Kevin
We use Sanyo TCM3000 series machines to place 0201 compnents and they run excellently. The Sanyo machine has corrective pick up on the x and y and H axis but also has a automatic corrective pick up where the component camera looks at a combination of
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
Electronics Forum | Wed Nov 03 20:02:44 EST 1999 | Anthony Winston
Well John here is the situation: I need to place an infrared transistor (optical element) with a tolerance of +/-.003", this is not a problem. A lens is positioned over the optical element and snapped to the PCB via three holes that have a toleran
Electronics Forum | Fri Nov 30 18:22:40 EST 2007 | mika
Hi Paul M, There are no silly questions but silly answers.. and here is maybe a few if I understand you correctly: If you consider place anything less than a 1.27mm (50mil) pitch component down or a chip less than a 1210, hey it maybe don't even work
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