Electronics Forum | Wed May 03 20:19:31 EDT 2000 | Dave F
Sal: Sorry, sometimes (more often than I�d like to admit) I�m a bit dense. But first � Leaching. Dissolution of a metal coating into liquid solder. Leaching applies to liquid solder and is applied inaccurately to metallurgical effects, like diff
Electronics Forum | Mon May 08 20:45:09 EDT 2000 | Dave F
Peter: How about a SMT test point? E-Mark (0603 0805) 273 Canal St Suite 414 shelton CT 06484 800.831.5383 www.e-markinc.com OXLEY (round test point gold color but difficult to pickup) Component Corp (loop ~ size of 1206 silver color works fine)
Electronics Forum | Thu Apr 13 20:27:45 EDT 2000 | Dave F
Hey Jack: I hope this qualifies as positive. ;^) May your days always be bright and filled with sun light and your evenings passed with a pint the never runs empty, so long you keep MELFs of all sorts on the primary side of the board, n'er thinkin
Electronics Forum | Tue Apr 11 20:48:26 EDT 2000 | Dave F
Donnie: Chrys wrote two excellent commentaries of the wave rider that are in the SMTnet archives. Yano the key thing for me in this? If you can't figure the usefulness of the wave rider, I imagine you either have: 1 Developed alternate approaches
Electronics Forum | Mon Apr 10 22:17:34 EDT 2000 | Dave F
Rob: What was driving the uBGA bridging? On your arrays: * I doubt that your supplier would be pleased that you are wave soldering these pups. If you insist, present leads to the wave on opposite sides of the package at the same time. Is this an
Electronics Forum | Wed Apr 05 22:38:22 EDT 2000 | Dave F
Mike: Claude makes excellent suggestions. I'll add perform more product set-ups to increase the variety of product being assembled to be able to respond to customers better, sell more product, and increase machine loading. So then, you have to ask
Electronics Forum | Thu Mar 30 21:54:55 EST 2000 | Dave F
Mike: Baring the obvious. I don't have much, but here goes. Daphne Eponex Grease #2 is marketed by the Industrial Products Group of Ryowa Oil. Ryowa Oil's parent s Ryowa Corporation of Osaka Kobe Japan. Be aware that "Ryowa" seems to be a fairly
Electronics Forum | Mon Mar 27 20:59:41 EST 2000 | Dave F
Garo: Voids are primarily process indicators. There is experimental evidence that voids retard crack propagation locally around the void on a temporary basis. There is no standard, IPC or otherwise, on voids--nor should there be. See also J-STD-013,
Electronics Forum | Thu Mar 23 22:20:51 EST 2000 | Dave F
Chris: I'm unsure about the kits you seek. Solderability of: * Components: J-STD-002, Dip And Look Method. Malcom Instruments makes a very nice tester. * Boards: IPC TM-650 2.4.12A Solderability, Edge Dip Method Good luck Dave F
Electronics Forum | Tue Mar 21 20:30:48 EST 2000 | Dave F
Marc: Experimental evidence is rare. Published reports are rarer. I can�t comment on the impact of rework on your RF boards. I can tell you that: � HF is pretty LF these days. � We allow three rework actions on each aboard. � IPC-7721 is a fine s
