Electronics Forum | Wed Jan 09 01:22:39 EST 2019 | kenneth0
Hi Simond, The baking process is likely to remove any moisture after the cleaning process. We wouldn't want any moisture trapped as this might cause delamination if the package is subject to subsequent heating/reflow process. Hence there's a staging
Electronics Forum | Mon Jan 22 22:37:27 EST 2001 | davef
50 ppm oxygen was on half joints reflowed in air. 3d Human factors PCB pad cleanliness: Handling of bare board pads creates excessive voiding. Print rejection: Cleaning of OSP pads with acetone or isopropanol increases voiding.
Electronics Forum | Sun Nov 07 21:40:14 EST 1999 | Chris
I am looking for an inertable reflow oven which will produce ROLs of less than 10 ppm. My current reflow oven will reduce oxygen levels to 10 ppm but only when using excessive nitrogen gas (4000 scfh). In reality less gas flow may reduce oxygen lev
Electronics Forum | Mon Aug 16 05:42:53 EDT 1999 | Omat Marasigan
Hello reflow experts, I just wanted to know the effects of N2 and O2 on reflow furnace to the solder ball apperances. thanks in advance.... ...Omat
Electronics Forum | Mon Sep 21 21:57:17 EDT 1998 | Yuen
How can I solve the small solder ball in the N2 W/S ? The Oxygen level is 10000~20000ppm & no-clean flux.
Electronics Forum | Fri Sep 11 06:35:19 EDT 1998 | KME
How can solve the small solder ball after w/s. (oxygen level is 40000~5000ppm, no-clean flux & Tamura N2 w/s machine).
Electronics Forum | Tue Sep 15 10:34:27 EDT 1998 | Larry
| How can solve the small solder ball after w/s. (oxygen level is 40000~5000ppm, no-clean flux & Tamura N2 w/s machine). Post your question in the SMT Forum for a better response. This area is not for tech questions.
Electronics Forum | Thu Dec 09 07:55:17 EST 2004 | davef
Cavaits are: * N2 is not required for NC fluxes. * We assume you're talking reflow soldering. We assume that you want to be below 1000 ppm O2. Want does your flux supplier say?
Electronics Forum | Wed Jan 18 16:50:04 EST 2006 | slthomas
Don't know why it would....the available oxygen shouldn't change any. You could always use nitrogen if you were worried about that. ;)
Electronics Forum | Thu Aug 03 12:41:20 EDT 2006 | Chunks
You should have a a gauge on your wave that you could convert to PPM. Save you a few bucks and headaches.
