Electronics Forum | Mon Nov 20 21:55:21 EST 2006 | brodalvin
Does SnPbAg solder paste have a reliability risk if subjected 2 times in reflow oven at 230�C? I want to implement my project immediately. If samples will be subjected to our reliability it would take three months before I can implement my project.
Electronics Forum | Mon Apr 30 07:38:13 EDT 2007 | realchunks
If this takes off, can we expect to see posts like this: "My reflowed boards are fine, but my Pop-Tarts and bagels are coming out slightly burnt. I think my spike is too hot but my boss is blaming the lead-free cream cheese! Can someone help?"
Electronics Forum | Thu Apr 15 14:09:48 EDT 2010 | richardli
We found stains on the boards come out of reflow oven. The board itself color changed to yellowish from white . We understand discolor soldermask due to high temperature. This can be acceptable by our customer not the stains. The stains look like wa
Electronics Forum | Thu Apr 07 06:15:57 EDT 2011 | afcpeacock
Last year I bought in a 10 zone reflow to replace our 6 zone. This was due to a number of reasons but mainly the 6 zone oven was not long enough to cope with solder voids on Ceramic bases using LF paste. Without knowing your product, just ensure tha
Electronics Forum | Thu May 27 21:41:44 EDT 2004 | valuepr
Im not an expert at this, but im going to have to agree with blnorman. I wouldn't use Hydrogen, its very explosive. I would look into a considering a new oven to cut back on cost. Yes you will have to put out the money for a new unit, but if it reduc
Electronics Forum | Fri Jun 03 14:55:15 EDT 2005 | Bman
Both our Quad ZCR and our Conceptronic HVN-102 ovens have had blowers out with no alarms raised. We knew there were problems based on how boards were soldering, but don't count on your oven to tell you if anything is wrong with it. We verify once a
Electronics Forum | Mon Mar 31 09:16:41 EDT 2008 | davef
What is changing the marking on the part? * Is flux residue coating the part to change the the way light reflects from the part surface? [Run a board with tape on the part, then remove the tape prior to AOI] * Is the heat of the oven changing the mar
Electronics Forum | Fri Apr 16 13:22:48 EDT 2010 | stepheniii
Have you tried running a few bare boards through the oven? If there is no flux on them and you still get the "stains" then I think you can eliminate the flux as the cuprit. And I've been told that white is the second most difficult solder mask colou
Electronics Forum | Mon May 22 15:46:49 EDT 2006 | adlsmt
Grant has a good idea, we started that way also. We made a tank out of stainless steel with copper tube coils about 18" off the bottom. Circulate cold water through the tubes to condense the vapor to keep the loss down. We used electric burners under
Electronics Forum | Thu May 27 16:23:12 EDT 2004 | davef
Process Trials Procedures. Standard trials are often conducted on reflow ovens by production engineers during product assessment, machine approval or in process set-up. The following trials are also used by machine suppliers during equipment develop
