Electronics Forum | Tue Aug 30 10:46:27 EDT 2005 | lyrtech
Hi, I curently have an interesting challenge. But I don't have all the knowledge to solve it. One of our boards is used in RF applications. We noticed that the No-Clean flux residue makes interferences in the RF signal. Removing the flux residue so
Electronics Forum | Thu Jul 12 16:57:46 EDT 2007 | jmelson
Canyou see this contamination? Is it solder beads, flux or something else? If flux, then more cleaning should help, either more time, more cycles through the cleaner, etc. If it is solder beads that are not melted to the rest of the solder, then s
Electronics Forum | Wed May 03 20:10:57 EDT 2000 | Dave F
Erhard: Several companies make feeders that move leadless chip components from a bulk feeder carrier, line them up head-to-tail, and present them to the pickup head of a high speed placement machine. Try: * Panasert * Suzuki � but you probably a
Electronics Forum | Thu Sep 20 01:13:05 EDT 2001 | Michael Konrad
Hi Dave, It may be. DI water alone will not build up residue. It can attack the finish of electro-polished (mirrored) stainless steel though. I have seen a white / chalky buildup on poly inline cleaners, usually isolated in the wash section. The
Electronics Forum | Thu Jan 26 17:32:15 EST 2006 | russ
What exactly is an "adhesive-type" cleaner?
Electronics Forum | Fri Mar 06 10:46:35 EST 2009 | davef
First, we agree with Loco that your QFP is nonwetting, rather than dewetting. Your sceen-shots look like ol' timey SnPb paste recipes. Turn-up the heaterometer dial. Second, on nitrogen: * We kinda think your O2 needs to be around 100ppm with 99.99%
Electronics Forum | Tue Jun 09 07:35:23 EDT 1998 | Steve Gregory
Hi there Gary, Your solder ball problem is very similar the problem I experienced, but I was using a water soluble paste at the time. It started by inspectors telling me that they were seeing cold solder on some SIMM's that we had built regularly. W
Electronics Forum | Tue Jun 09 15:46:29 EDT 1998 | Aric Parr
| Hi there Gary, | Your solder ball problem is very similar the problem I experienced, but I was using a water soluble paste at the time. It started by inspectors telling me that they were seeing cold solder on some SIMM's that we had built regularly
Electronics Forum | Thu Jan 21 19:43:16 EST 1999 | Ron Costa
What are the problems related to cleaning when using OA tacky flux to replace a PBGA. Will your standard inline cleaner be able to reach all the way under to clean all residue? BGA type is 1.27mm pitch .030 dia. ball plastic. Any info helpful! Thank
Electronics Forum | Tue Jul 27 00:15:04 EDT 2004 | ppwlee
We had a similar application to rewash excessive flux residues through a chemical wash, steam clean, and DI rinse. We currently have an inline cleaner. Can you comment what kind of steamer (made and manufacturer) is being referred to in this discussi
