Electronics Forum | Fri Jun 11 18:01:48 EDT 2004 | davef
Bob: This links to a good discussion on scoring by George Verboven. [It discusses "keepout", but doesn't address your question, because George's "keepout" is not the same as yours]: http://www.tkb-4u.com/articles/other/vscore/vscore.php The infor
Electronics Forum | Wed Jun 16 13:25:09 EDT 2004 | russ
have you tried a more agressive flux like water soluble to see if the problem goes away? Or can they be hand soldered with no problem? I am basically out of ideas other than a bad nickel or tin finish. The reflow profile didn't seem out of whack f
Electronics Forum | Mon Jun 28 10:02:06 EDT 2004 | fmonette
The answer is yes, it is possibly a moisture-related problem. You can confirm this by baking your parts at 125C for 48 hours (ref. J-STD-033A, table 4-1). For more technical background on this issue I recommend you read the following paper : Impac
Electronics Forum | Tue Jun 29 14:42:55 EDT 2004 | davef
You're correct, for every dumpster full of paper written about solder, there's a sentance written about fluxes. There's dribs and drabs about fluxes in most of the soldering books [ie, Manko, Klein-Wassink, Judd, Strauss, etc] and most of that is ve
Electronics Forum | Wed Jul 07 13:37:56 EDT 2004 | mark
Not sure if this helps but found this site that outlines % of N2 against O2 ppm levels. You need 99.99% N2 purity for http://www.tkb-4u.com/articles/consumables/whatisnitrogen/whatisnitrogen.php Most customers we have worked with in the past run an
Electronics Forum | Wed Jul 07 12:07:08 EDT 2004 | stevecrowley
Good day all, We recently replaced the CTU and RTU hard drives and re-loaded the Q-soft2 application. We now get an error message on the GUI saying Qserve.vxd hooking error #4 . During the process we tested the shared RAM and when the GUI sends a m
Electronics Forum | Tue Jul 27 11:32:20 EDT 2004 | dwanzek
Thanks for the input guys. One problem with this theory, we see the same failure using Omni 5000 solder paste. We also see this problem across 4 production lines, suggesting it is not oven related. The profile meets recomendations and we have tried
Electronics Forum | Tue Jul 20 04:16:02 EDT 2004 | Charles Huang
Wondering if there any CP7/F4G programmers out there that can help me out with this one. I'm assuming the setting for max and min nozzle in the "environment" section of the part data would allow me to use either the specified max OR min nozzle in th
Electronics Forum | Tue Jul 27 19:37:51 EDT 2004 | simmcircuits
Thank you Paul, this is the actual information I need to adjust the camera! At the moment I have actually reduced the offset values down to 0.7 from a previous 4.0. I have done this by editing the AP.CAL, took a while to get the proper values as I ha
Electronics Forum | Thu Jul 22 12:02:52 EDT 2004 | lloyd
I'm currently having issues with a 28 terminal MLP package. I have only recently started in a new company and it seems as though the manufacturers guide lines as to pad geometry do not work (at least for us). So I now have a situation where I have 4
