Electronics Forum | Mon May 10 15:02:37 EDT 2004 | davef
There's no such specification. Not should there be. Shear tests [in our opinion] are senseless, because: * Solder joint strength in pull/shear varies with lead geometry, solder volume, lead metal/metallization, and the way the test is done. * She
Electronics Forum | Mon May 10 20:46:25 EDT 2004 | davef
The three basic methods you can use to restore solderability on components are: * Highly active fluxes in a retinning operation. * Surface stripping chemistry and then a standard retinning operation. * Electrochemical conversion chemistry and then a
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 | Fri May 14 13:12:00 EDT 2004 | russ
This little bit was interesting, I posted a very similar response the other day in agrrement with newbie, I was starting to get a little ticked myself and the "going back to the basics" questions that we are starting to see more and more of. I afte
Electronics Forum | Thu Oct 21 06:26:50 EDT 2004 | dennispoquiz
Right. Fiducial comes with the CAD data or the gerber files. If it doesnt, and you need to create fiducial coordinates, you may use a digitizer or a caliper and make use of the reference pin as the origin. Now if the fiducial camera focus is way out,
Electronics Forum | Mon Oct 25 08:16:46 EDT 2004 | mmjm_1099
This is what I have come across with some of the gerber datas. Most CAD/Gerbers don't carry the fiducials because some of my customers don't have them as a standard but when the board house gets it they are the ones adding the fiducials. So send in a
Electronics Forum | Thu May 13 19:41:17 EDT 2004 | johnww
Hi Everyone, I want to use LEDs in an enclosed box for edge lighting etched glass. There are 15 LEDs in a box and they are set up in 5 series of 3 LEDs. The LEDs are 3.5V 20Ma 8000mcd. I've worked out that I need an 82 ohm resistor for each series
Electronics Forum | Fri May 14 07:06:47 EDT 2004 | stefwitt
None of the vision systems can really �read� a black object. In order to recognize an object a light source is required. The light is reflected from the object through an optical lens to the CCD chip. There is almost no light coming back from a black
Electronics Forum | Fri May 14 12:49:23 EDT 2004 | ehess
ok, we currently have one wash we use for everything, thru-hole and SMT. The configuration of our floor puts the SMT area at opposite ends of the floor than the wash, thus causing a lot of back and forth to the wash. We want to purchase a smaller w
Electronics Forum | Tue May 18 22:12:52 EDT 2004 | Ken
I have considered using the same security methods employed at thousands of Gas stations across the USA. The bathroom key is attached to a large carburator, tire rim, or any 30 pound piece of towing chain! Seriously, I look at my processes and try a
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