Electronics Forum | Mon Jul 23 18:38:43 EDT 2001 | johnmaetta
We are re-thinking our clean vs no clean asembly process' and would like some information from users of both process'. Currently, we use no-clean, but our assemblies display residue and other contaminates and this raises questions at our customer si
Electronics Forum | Mon Mar 17 04:31:52 EDT 2008 | d0min0
Hello, tried searching the SMTnet archives, but not yet a clear answer - maybe there is not a one yet ? ;) last discussion I found is few years old so maybe there is a fresh view on that? Q: we want to prove that our proces is "clean" we use SAC30
Electronics Forum | Fri Jan 29 21:31:46 EST 2010 | aqueous
I would recommend the following paper entitled "Cleaning for Reliability Post QFN Rework" by Mike Bixenman (Kyzen) and myself (Aqueous Technologies). While it discussed cleaning under QFN's in a batch environment, it is also applicable to cleaning u
Electronics Forum | Thu Feb 15 17:00:37 EST 2007 | bvdb
Hi Jerry, Thanks for coming to my aid again. I have tried your settings of 10% for Lead check and pitch limit but still rejects the part. The vision image looks clean on the display. On one of the last trials I noticed that the part was picked up
Electronics Forum | Mon Mar 17 18:37:59 EDT 2008 | aqueous
We manufacture both bulk and localized ionic contamination testers. My answer is from the perspective of the cleanliness testing method. The issue with all bulk ionic contamination testers (Ionagraph, Omegameter, Zero-Ion), is that they test the en
Electronics Forum | Tue May 02 18:15:21 EDT 2006 | Mike Konrad
We manufacturer cleaning equipment (full disclosure) so, our answer may seem self-serving. The facts however are accurate and relevant so here I go� Changing from an OA (water soluble) flux to a no-clean flux makes sense. After all, even die-hard
Electronics Forum | Thu May 27 15:59:30 EDT 2010 | mikesewell
ATS-667 tape. You can buy direct http://www.ats24.com/index.cfm?fuseaction=content.display&contentid=50 or through distribution such as All-Spec. Polyester film with rubber resin adhesive (no silicone) = clean mask lines. Call for a sample.
Electronics Forum | Wed Aug 18 11:25:12 EDT 1999 | J.J. Thomas
| WE ARE CURRENTLY HAVING PROBLEMS REFLOWING BOARDS WITH WHITE TIN PLATING. WE ARE NOT GETTING GOOD WETTING ON THE PADS. | WE HAVE CHECKED THE REFLOW PROFILE AND TRIED DIFFERENT PASTE'S. | WE THINK THERE MAY BE CONTAMINATION OR OXIDATION ON THE PADS.
Electronics Forum | Wed Sep 01 22:09:25 EDT 2004 | raylrhodes
We have an up coming job that has conductive ink deposits on the solder side of the PCB for contact switches and a zebra strip that connects to an LCD display. My question is... Do these need to be masked to protect them from the wave solder process
Electronics Forum | Wed Sep 07 11:45:05 EDT 2005 | GEB
The camera on the head of my Universal GSM1 (1994/5 model) displayed interference, and then the live video from it went red. This has never happened before. I've tried re-starting the machine, wriggling the camera feed wires, cleaning the lens etc. D
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