Electronics Forum | Mon Sep 21 10:49:05 EDT 1998 | Ben Salisbury
| | I am looking for a small benchtop rework station for replacing bad QFP132's as well as a variety of SO8 to SO20 components and 1206 chips. I've been looking into some IR heating equipment as well as hot air tools, but have little experience with
Electronics Forum | Wed Jun 04 14:33:28 EDT 2003 | joeherz
CAL, Thanks for the input. When I said chemistry I was refering to soldering chemistry and not cleaning. I believe this machine has the capability to incorporate a saponifier but would prefer not to run in this manner. Running a closed loop DI re
Electronics Forum | Mon Aug 30 16:07:06 EDT 2004 | Shean Dalton
Hi Chen, Based on your posted message, the following ideas are for your consideration: "brown residue" The water soluble solder paste you are using could be a water soluble rosin solder paste formulation. Perhaps the solder paste may not be proper
Electronics Forum | Thu Sep 02 02:30:08 EDT 2004 | Mike Konrad
Silverado, To answer your specific question, there are several manufacturers of batch-format cleaning systems. Aqueous Technologies www.aqueoustech.com Austin American www.aat-corp.com EMC www.emcgti.com UnitDesign www.unitdesign.com Each man
Electronics Forum | Thu Oct 28 11:41:21 EDT 2004 | Steve Stach
Hello Loz, Blue residues on circuit boards can be caused by copper corrosion, component body deterioration, marking permanently, and adhesive break down. In this case, a more subtle mechanism appears to be possible. This is a no clean application
Electronics Forum | Thu Dec 23 03:05:26 EST 2004 | Steve Stach
The Jury is still out on no-clean reliability in the long term as no-clean didn't gain wide spread acceptance until the early 1990's. Also, in today's disposable society, few products are expected to last 15-20 years. Experience has shown that if y
Electronics Forum | Thu Dec 23 03:13:47 EST 2004 | Steve Stach
The "Rose" test is a process control tool because it is cheap and easy to use. It has it's problems; but, it is generally agreed to be the best tool available for this purpose. All others are much more expensive and time consuming to run every day.
Electronics Forum | Mon Jan 31 13:38:17 EST 2005 | mrclean
This build up is likely related to the defoamer. Defoamers are typically based on waxes and/or high molecular weight Hydrocarbons. As defoamers only need to work on the exposed fluid surface, not a lot of defoamer is needed (unless you are using
Electronics Forum | Fri May 27 17:21:35 EDT 2005 | mrclean
Dear SM Rookies, Another acceptable test method is visual inspection. IPC-A-610 details what to look for with different contaminants, providing magnified pictures of the possible visual residues. With an existing cleaning process, magnification
Electronics Forum | Tue Aug 23 14:29:19 EDT 2005 | Shean Dalton
We have had positive experiences with our evaluations of Zestron Vigon SC200. To make the determination adequate to support your process application, the Vigon SC200 should be cross referenced to your specific adhesive, water soluble and no-clean pa
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