Electronics Forum | Tue Aug 26 21:12:24 EDT 2003 | iman
depends if your water wash process is manual or automation? important is the water residue inside the via holes is adequately blown out. As long as the water-flux residue is out, testing down the line should not be a issue, at least from theory and o
Electronics Forum | Fri Aug 22 09:50:20 EDT 2003 | Mike Snider
I am placing a plastic Cypress, 256 pin BGA on a small assembly, and I cannot stop the corners from bowing. I've moved my profile up and down with no results. Any suggestions?
Electronics Forum | Sat Aug 23 08:26:54 EDT 2003 | davef
In line with Russ' comment, look here: http://www.smtnet.com/forums/Index.cfm?CFApp=1&Message_ID=22497
Electronics Forum | Mon Aug 25 20:29:02 EDT 2003 | davef
For further discussion on the "being hosed by the physics": http://www.cooksonsemi.com/tech_art/pdfs/Controlling%20Warpage.pdf
Electronics Forum | Mon Aug 25 20:35:51 EDT 2003 | davef
We don't see very much MCC shorting, except after over-voltage. We see much more in the opens category. Were these puppies shorted out of the box?
Electronics Forum | Tue Aug 26 11:15:47 EDT 2003 | blnorman
We use HTN (high temperature nylon - Zytel) connectors in our reflow ovens with no warping, bubbling, or cracking. You can also use PPA (Amodel).
Electronics Forum | Tue Aug 26 15:05:59 EDT 2003 | Robert H.
Hi, Does any one know why on the Panasonic Screen Printer machine SPP(LL) the Motor Drive Panadac-321-5 turns on the light ST? I already try another Motor Drive and it does the same. Thank you.
Electronics Forum | Tue Aug 26 22:45:27 EDT 2003 | fastek
Check your limit and origin sensors for that axis first. If they are OK then change the motor. If that doesn't fix it you have a wiring problem or NC Card problem.
Electronics Forum | Wed Aug 27 16:02:26 EDT 2003 | Darrow Gervais
I have contact a couple of the board houses we use in the mid west with no luck. Darrow
Electronics Forum | Wed Aug 27 21:10:49 EDT 2003 | davef
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