Electronics Forum | Tue Aug 27 13:52:24 EDT 2002 | Mike Konrad
MK, In most cases, if the machine is completely closed-looped (prewash, wash, prerinse, rinse, final rinse etc), then the water should not require changing. As with most inline cleaners, there should be a considerable amount of water loss in the cl
Electronics Forum | Fri Apr 07 17:17:55 EDT 2000 | Dave F
Ashok: You should select and use low residue tapes. But ya know, ya go out and research a great tape and if yer not careful, the buyer will second source ya and (surprise) ya got residues again. We have found that Lemme say this about Katon tape
Electronics Forum | Wed Jan 30 21:56:47 EST 2008 | rayjr1491
On the DEK Horizon there are two options for underside cleaning one is a foam cleaner and paper cleaner that advances. The Foam cleaner cleans using liquid but does not increment and foam piece and can be washed but there are still contaminents. We h
Electronics Forum | Tue Jan 10 13:51:32 EST 2012 | jdengler
Had you cleaned the inside of the machine just before this started? I once had an oven that was cleaned with some sort of oven cleaner and it contaminated PCB Assemblies when they ran it. This residue was not visible to the eye but caused soldering
Electronics Forum | Thu Jul 20 05:04:30 EDT 2006 | bing007
We had a similar problem with gold contact pads. Cleanliness is paramount. If you are using foil tensioning system, wash the foil in a stencil wash before use as the cardboard cassettes may be contaminated. Be very careful when loading into a frame f
Electronics Forum | Wed Feb 17 11:31:37 EST 1999 | Bill Schreiber
Dear Al, Are these reworked, double-sided boards? If you attempt to clean side #2 of double-sided misprint in a "spray" type cleaner, millions of solder balls can be broadcast throughout the same chamber as the populated side #1. Or, if this is a s
Electronics Forum | Wed Jun 24 16:45:18 EDT 1998 | Bill Schreiber
| I know this topic has probably been talked about before...But I ran into a small situation where Solder Balls were appearing in large quantities on the PCB....the Problem has been isolated and taken care of, my question is, what are some good metho
Electronics Forum | Fri Aug 20 10:18:32 EDT 1999 | Dennis Fall
I have a layer of electroplated solder (10/90) that appeares to have some sort of contaminent on it. Water will not wet to the layer in some areas. I have tried using 10% HCl in DI as a cleaner as well as 7.5% Fluoboric acid in DI. Neither has tou
Electronics Forum | Fri May 18 13:08:19 EDT 2012 | blnorman
I'll chime in here as well. If you have adhesion problems, 90% of the time it's contamination on the substrate (soldermask, flux residues, cleaner residues, etc.). Like Dave said, omega meter is a test for gross cleanliness, and it's OK for process
Electronics Forum | Tue Oct 31 22:13:48 EST 2006 | davef
We never run raw solder paste through our board cleaner, because: * Flux floats on the water in the tank and contaminates everything, including the boards being 'cleaned'. [Prove this to yourself by observing the location of gray schmutz on the insid
