Electronics Forum | Mon Jul 14 16:26:58 EDT 2003 | slthomas
Yes, they do the cleaning, we did the (apparently first) inspection and caught the problems. They tried a shorter cleaning cycle, witnessed no defects, and attributed the defects on the boards we had to their cleaning process. Now they just plan on
Electronics Forum | Mon Aug 04 15:01:24 EDT 2003 | bcceng
As Cal mentioned "Internal support" it is the most important item when selecting equipment. Support has been very weak for us, I have been told it will change, but been hearing it for months.. sorry but it is the truth. As an engineer I still favor
Electronics Forum | Wed Aug 06 21:47:25 EDT 2003 | Francisco De La Torre
I looking for some information about Lead cutting and forming equipments. In specific PPM information abour Tape feeding vs bowl feeding. For TO-92 components. Actually we have a tape feeding system and we have like 15000 PPM's, and we measuared the
Electronics Forum | Tue Sep 09 09:25:29 EDT 2003 | james
What about making the customer drawing or parts > list with their rev as a part number on your > parts list? Example: (455556 rev X) would be a > part number on your parts list. What about keeping their revision as A, B, C and in your system it
Electronics Forum | Tue Sep 16 10:15:33 EDT 2003 | Gabriele
Hi James, is it your oven a convection forced air ? if yes you should check if air flow speed is too high. Also, some time ( do not smile pls !!) it could be a metter of magnectic field inside oven tunnel. The SOT leads are normally madeby A-42
Electronics Forum | Wed Sep 24 08:34:57 EDT 2003 | stefwitt
Even when you run a board several times, the machine may not make the same travel path every time. This in itself does not create a problem, but the vacuum on the nozzles could be different, dependent on the configuration of components on the heads.
Electronics Forum | Fri Oct 03 23:57:23 EDT 2003 | Dean
Buddy system at a minimum. In fact it does no good to verify your "stock" number. You need to verify the manufacturers numbers as-well. And even then, reels do get mis-labeled. I seem to remember a story of a major CM supplier for a Big 3 car mak
Electronics Forum | Mon Oct 20 11:48:34 EDT 2003 | blnorman
Who said there was NO evaluation? The paste we chose was evaluated based on a 20 point test score as well as material compatibility. Once we introduced it to manufacturing each line had problems. For one manufacturing treated it as a drop in repla
Electronics Forum | Wed Oct 15 08:55:59 EDT 2003 | John
I'm looking at an application that would require 62/36/2 solder paste. We currently run 63/37. I'd like to change across the board to prevent a mix up, but I don't know what concerns/issues that might create. The PCB's we currently run are HASL fi
Electronics Forum | Thu Feb 05 15:12:58 EST 2004 | pjc
There is the IPC/JEDEC J-STD-033 that addresses moisture sensitive components. Go to http://www.ipc.org for the standard. Your factory/storage area environment will dictate exposure times allowable. Be mindful of temperature and humidity changes- lik
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