Electronics Forum | Tue Aug 24 11:44:50 EDT 2004 | Dreamsniper
The best is, create 2 different profiles for each PCB type. Then segregate or separate them and do not let them run together in one line. Switch to the proper profile settings each time you change to other PCB type. This is the best. Each PCB materia
Electronics Forum | Fri Aug 20 12:06:53 EDT 2004 | danhui888
Pls contact ECD for built in monitoring system or KIC 24/7. This products will monitor your oven performance and profile round the clock without stopping. If your profile is out of the spec, the software will gives you an alarm and the machine will s
Electronics Forum | Fri Aug 20 12:06:55 EDT 2004 | danhui888
Pls contact ECD for built in monitoring system or KIC 24/7. This products will monitor your oven performance and profile round the clock without stopping. If your profile is out of the spec, the software will gives you an alarm and the machine will s
Electronics Forum | Wed Apr 06 21:37:35 EDT 2005 | KEN
Are you saying you have solder balls (as in solder paste balls) at the lead tips (or land tip)? This means your thermal profile is not hot enough. why the sudden cahnge? I will bet the lead frame material was copper and is now alloy 42. sounds like
Electronics Forum | Mon Oct 03 16:19:22 EDT 2005 | Amol
for backward compatibility applications (such as this), the higher melting temperature alloy (LF alloy) gets the priority in selecting the reflow profile. you are using too low temps for reflow. your LF alloy wont reflow at these temp and you will e
Electronics Forum | Wed Mar 15 09:17:28 EST 2006 | mapell
Vick Russ is very correct. Get the paste material specificatioin. Please get your favorite data logger (ECD, KIC, DatPaq, etc..), attach some TC's and take a profile. This is the ONLY way to know what your reflow system is doing and how to alter.
Electronics Forum | Fri Mar 17 15:43:28 EST 2006 | timo
Larry - What model oven do you have? We keep a library of settings on file that will help get you in the ball park. I agree that the BEST process is to use thermocouples to get actual board readings for really dialing in a profile. The numbers you
Electronics Forum | Thu Jun 01 10:08:59 EDT 2006 | ratsalad
I sewed a sock out of a Nomex/Kevlar blend fabric because we had the same problem with our profiler. It works great. After one run through the reflow oven, the internal temp rises by about 5 degrees C. It used to go up by about 20-25 C. I can pic
Electronics Forum | Fri Sep 07 12:19:20 EDT 2007 | guqing
We are having problem to develop lead-free (SAC305) reflow profile for big SMT electrolytic caps. The delta T of the joint of the cap with the rest of the board is too big to fit in the tighter lead-free window. Any suggestions regarding the total pr
Electronics Forum | Fri Oct 26 09:38:57 EDT 2007 | slthomas
Rather than go into detail here, try googling "classic reflow profiling". One of the guys at ECD (a thermal profiler manufacturer) wrote a pretty decent article that covers most if not all of it. You DO have a profiler, don't you, or an oven with
