Electronics Forum | Mon Aug 24 08:29:05 EDT 1998 | Chris Fontaine
Kc, Bent leads are a major defect driver for us, and despite much research I have yet to find a lead straightening device which is not labor intensive. I do however have some limited information about a machine called the "Top Form 2020" by Polytool
Electronics Forum | Thu Aug 27 19:46:21 EDT 1998 | Kallol Chakraborty
Thanks very much. | Kc, | Bent leads are a major defect driver for us, and despite much research I have yet to find a lead straightening device which is not labor intensive. I do however have some limited information about a machine called the "Top
Electronics Forum | Fri Oct 16 07:06:10 EDT 1998 | Gerry Gillies
In the past year I have introduced a component reclaim process. There are a number of machines on the market, though it's true that reclaim is still a fairly labour intensive activity. We have had good results with a German machine manufactured by Ro
Electronics Forum | Tue Mar 20 00:02:00 EDT 2007 | Darby
Some causes of skewing. If you have exhausted all mechanical problems for that head. Pickup data from tray is incorrect. If you aren't picking up in the exact centre it is possible that the component is being skewed after vision adjustment i.e. cent
Electronics Forum | Fri Apr 23 13:31:20 EDT 2004 | russ
The toes of leaded devices are problematic in fillet formation. A lot of the time they have the copper from the lead exposed so it becomes oxidized and won't readily take solder. Normally this is of no concern if the heel and side fillets are forme
Electronics Forum | Fri Apr 23 12:47:29 EDT 2004 | barry
I have increased my peak to 220, and Flow is better, but it still not quite a good fillet all around. The solder tends to kinda "bunchup" at the toe of the lead. If part is Pb free, would this affect adhesion and or flow?
Electronics Forum | Thu Aug 12 18:43:49 EDT 1999 | Wayne S.
Hello Having a problem with bridging on 20mil pitch qfp, only on the lead groups where squeegee goes over width of apertures. Using MPM sp-200 semi-auto, chem-etch stencil, 9-10mil width opening 100 durometer blade. Getting "tails" on deposits. Trie
Electronics Forum | Thu Aug 12 20:17:12 EDT 1999 | Kelly Morris
| Hello | | Having a problem with bridging on 20mil pitch qfp, only on the lead groups where squeegee goes over width of apertures. Using MPM sp-200 semi-auto, chem-etch stencil, 9-10mil width opening | 100 durometer blade. Getting "tails" on deposi
Electronics Forum | Fri Aug 13 12:52:17 EDT 1999 | Steve Schrader
| Hello | | Having a problem with bridging on 20mil pitch qfp, only on the lead groups where squeegee goes over width of apertures. Using MPM sp-200 semi-auto, chem-etch stencil, 9-10mil width opening | 100 durometer blade. Getting "tails" on deposi
Electronics Forum | Tue Aug 17 10:41:13 EDT 1999 | Steve A
Wayne, Sounds like a gasketing problem. When the horizontal apertures are bleeding but not the vertical apertures. Could be poor underside support, HASL miniscus issues, masking or plugging issues, but what many people do not account for is that t
