Electronics Forum | Tue Jul 29 13:09:26 EDT 2008 | gabriella
Hi, for this kind of issues I will always go with the flux first. Are you using only one type of flux? Is it alcohol based or water based? Do you apply a good quantity? Second I will go with the wave shape and speed, and last will be the temperatur
Electronics Forum | Tue Jul 29 13:35:48 EDT 2008 | grics
We only use one type of flux for Lead Free. It is an alcohol based no clean flux. Is the wave shape and speed as large a factor in ive soldering as in traditional wave soldering? When you say "decrease the Z" do you mean the nozzel or solder heigh
Electronics Forum | Mon Aug 04 13:13:21 EDT 2008 | patrickbruneel
The 2009M is a water based flux and requires more preheating compared to alcohol based fluxes. After checking real chunks advice you might check if you hear sizzling when the solder touches the board (indicator that the water is not eliminated by you
Electronics Forum | Wed Aug 06 09:32:46 EDT 2008 | grics
We have a 3/6 Nozzle We do have monitors. One of our pots is leaded, the other is lead free. Our average wave height is ussually around 50%. Also, do you have any or found any benefits to removing nozzels at the end of your shift. I recall you say
Electronics Forum | Fri Aug 15 10:23:56 EDT 2008 | ck_the_flip
Ovens, and any other process for that matter, will ALWAYS vary. It's called process variation. I do Cpk (process capability) on my ovens. I track time-above-liquidus and peak temperatures. Statistics will validate how repeatable your oven is.
Electronics Forum | Tue Aug 26 07:39:54 EDT 2008 | evtimov
thanks. i was looking at the silicon horizon > controller for the toaster. just to help keep the > temp constant since i can not watch it all night! this way of baking is good just for small quantities. If you want to built a lot of boards, you b
Electronics Forum | Wed Aug 27 13:15:50 EDT 2008 | vladig
Well, it's difficult to play with the profile without knowing the root cause for the problem. A simple cross-section can tell you whether the component is at fault or not. If it doesn't point out to the root cause then and SEM/EDS analysis on one of
Electronics Forum | Thu Aug 28 11:13:53 EDT 2008 | janz
Have you tried to run the same process but with diffrent solder paste manufacturer.? This give you information whether paste is ok. Try also print paste on the bare board and run through reflow oven. Check 2-3 boards. Is it the same places where i
Electronics Forum | Mon Aug 25 16:48:14 EDT 2008 | petep
Any tips out there for effective LGA rework? How is solder best re-applied? Can these parts be sent out like BGA's for "re-balling"? Like all of you, we build, profile place and solder for reliability, but the time will come when one of these co
Electronics Forum | Fri Aug 29 07:22:05 EDT 2008 | realchunks
Omid, Try changing your profile. I had the exact same thing happen to me in 2006. Eventually I had to change my paste. No lead parts can and DO have a different finish that Pb parts. Why do you think the rest of the world increased their oven te
