Electronics Forum | Sun Apr 25 09:45:13 EDT 1999 | Joe Cameron
Hello all, Our guys here still have some questions on the "optimized" profile which sees a more moderate ramp up straight to reflow temperatures versus the conventional profile which has a plateau at around 150 Celsius. If the optimized profile can
Electronics Forum | Wed Feb 16 23:17:13 EST 2000 | Richard Moreno
Does anyone know of a SMT reflow modeling simulation that I could use as a baseline for reflow profiling? I'm looking for a quick means of setting up oven profiles for various oven sizes based upon board density (grams/sq in) and conveyor speed.
Electronics Forum | Wed Feb 16 23:17:13 EST 2000 | Richard Moreno
Does anyone know of a SMT reflow modeling simulation that I could use as a baseline for reflow profiling? I'm looking for a quick means of setting up oven profiles for various oven sizes based upon board density (grams/sq in) and conveyor speed.
Electronics Forum | Wed Jun 26 01:08:09 EDT 2002 | ianchan
Hi Dave F, I'd hold you to that "could" opinion of yours... and I'd be most willing to give the new VP ovens a try if such ovens become commerically acceptable to the pocket and match up to our current process control requirements (that we can achie
Electronics Forum | Wed Jan 26 06:40:17 EST 2005 | mattkehoe
You can place them by hand and reflow them using a toaster oven if you use SIPAD ssd with adhesive flux. Yes, I said a toaster oven. It is being done!! Convection ovens work best. Give me a call and I will send you some sample boards to try it out
Electronics Forum | Tue Jun 25 05:28:45 EDT 2002 | ianchan
Vapour Phase is a "phased out" technology. Hot Air Convection is the commonly acceptable type of Reflow Oven. Some folks are getting good improvements for "IR + Hot Air Convection" (combined) Oven technology. Nitrogen Ovens have their own set of p
Electronics Forum | Wed Jan 15 11:53:40 EST 2020 | avillaro2020
As far as the large thermal gradient I have on my thick and thermal heavy board, I've done quite a bit to minimize the gradient but not successful. it's like one pad is connected to a signal while the other pad is connected to ground, you can't bring
Electronics Forum | Sun Jun 10 12:30:10 EDT 2001 | procon
Is this a Convection Oven or IR? If convection, you can increase the air velocity in the zones if the oven has this ability. You should do as Dave has explained. If you must use pallets when reflowing your components, you need to profile in the same
Electronics Forum | Tue Sep 16 10:25:34 EDT 2003 | James
We do have a convection oven and no one has messed with it. I am the only one who can change anything. I have it set at Medium right now on a conceptronics oven. Could this be too high? We have not had problems in the past with parts moving off o
Electronics Forum | Fri Mar 23 14:43:19 EDT 2018 | dleeper
What sort of components are missing? One possibility is moisture sensitive parts outgassing during reflow. The jets of steam propel the parts off the PCBA. Another thing to look at is your convection oven fan speeds. On some ovens this is adjustabl
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