Electronics Forum | Tue Sep 02 09:09:11 EDT 2008 | allan99
Good morning everybody! I'd like to receive from you articles or tutorial links teaching how to develop a reflow profile and its process variants, I'm a new user from SMTnet forum and I can see profesional with grate knowledgment. thanks in advance
Electronics Forum | Tue Sep 02 13:30:11 EDT 2008 | hermes
Try this. Basic reflow profile build up and explanation of its parts: ramp-up, soak or no soak, peak, cooling. Good starting point.
Electronics Forum | Sat Sep 06 10:09:57 EDT 2008 | davef
We can't help but wonder: * What are the measured temperatures on a good solder connection and the picture connection? * Why use use Type 4 solder paste?
Electronics Forum | Wed Sep 10 15:54:57 EDT 2008 | slthomas
"When we solving a problem we have to be absolutely sure it's really solved." Conversely, it's always good to return things back to the way they were when you conclude that THAT knob turn didn't solve the problem.
Electronics Forum | Fri Sep 12 16:56:13 EDT 2008 | ppcbs
We have a double sided board with Immersion Silver Plating. After reflow the Silver turns a yellowish color. It still wets good, and the yellow color will polish off with a pencil eraser. Has anyone seen this, or know the cause?
Electronics Forum | Tue Sep 16 16:51:25 EDT 2008 | vladig
Even BGA may be no braner if it's done properly :-) I had a few cases with that and afterall it worked fine. :-) I agree, it was a good think to mention. Vlad
Electronics Forum | Fri Sep 19 16:33:46 EDT 2008 | mac5
If you're having trouble with a specific board, double check your Pattern, Diameter, Color and Scan Area under the 'Mark Data' tab. You can also try setting the Pitch Tolerance to '0' in the machine configuration. Good Luck, Bill
Electronics Forum | Thu Sep 18 14:59:46 EDT 2008 | bobpan
Check the fuses on the quad align card. There are 2 on each card. They are surface mount type. Typically one of these have blown. Good luck
Electronics Forum | Fri Oct 03 15:18:27 EDT 2008 | davef
Good ol' general purpose, day-in, day-out ~$1k hot air rework stations are: * Pace ThermoFlo ST 300 Low Cost Hot Air Reflow System [ST 325 is digital] * Hakko FR-803B SMD Rework Station [FR-802 is digital]
Electronics Forum | Thu Oct 09 15:26:08 EDT 2008 | wrongway
We use campton tape also but we use a ultasonic stencil cleaner and the tape will come off everytime its washed good luck
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