Electronics Forum | Wed May 19 07:38:42 EDT 2004 | Bob L.
I'm trying to help one of our remote sites solve a problem with a warped PBGA. The corners are lifted, creating columnar joints and the central balls are sometimes shorting. I've verified that it's not popcorning and I've got samples going to the l
Electronics Forum | Thu May 13 20:38:32 EDT 1999 | lima
Does anyone know of any industry guidelines for the exhausting of volatiles in reflow ovens? I've seen some numbers like 1,000ppm for the oven atmosphere, but is this typical? My concern is the volatiles in my WS629 solder paste may be attacking th
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
Electronics Forum | Fri May 14 15:03:19 EDT 1999 | lima
| | Does anyone know of any industry guidelines for the exhausting of volatiles in reflow ovens? I've seen some numbers like 1,000ppm for the oven atmosphere, but is this typical? | | | | My concern is the volatiles in my WS629 solder paste may be
Electronics Forum | Fri May 14 00:16:28 EDT 1999 | Mike D.
| Does anyone know of any industry guidelines for the exhausting of volatiles in reflow ovens? I've seen some numbers like 1,000ppm for the oven atmosphere, but is this typical? | | My concern is the volatiles in my WS629 solder paste may be attack
Electronics Forum | Mon May 19 09:29:59 EDT 2003 | bradlanger
Dave, We are using Kester Easy Profile 256 No clean Sn62Pb36Ag02. The oven itself is a Dima SMRO-0252 which is a short oven, it has 13" of preheat, 13.5" of soak, 6.25" of reflow, and 10" of cooling on the way out of the oven. We are soldering multi
Electronics Forum | Sun Mar 25 17:02:41 EDT 2007 | johnwnz
Folks, I may be havign a thick day, it is Monday afterall and it has been very sunny over the weekend. We have recently started buildign a fairly high volume of products that is using intrusive reflow on two PTH DIN connectors and havign soem good s
Electronics Forum | Mon Aug 16 18:37:15 EDT 1999 | Paul Wareham
Is there process by which one can do a double sided reflow (SMT on both sides) in one pass through the oven?
Electronics Forum | Tue Aug 17 16:12:51 EDT 1999 | Doug
| Is there process by which one can do a double sided reflow (SMT on both sides) in one pass through the oven? | Probably not. I have heard people talk of it but never see it done and I wouldn't recommend it. Good luck
Electronics Forum | Wed Aug 18 20:58:12 EDT 1999 | Dave F
| Is there process by which one can do a double sided reflow (SMT on both sides) in one pass through the oven? | Paul: Check Bob Willis' site (check the archives). Ta. Dave F
