Electronics Forum | Fri Feb 04 13:07:46 EST 2000 | Graham Naisbitt
Casimir This is not an easy subject. How did you process the test pieces? Was the flux used correctly at the required and recommended level? Did it see the wave properly? I am not an advocate of no-clean but we do have customers who coat over no-cl
Electronics Forum | Mon Feb 07 11:05:50 EST 2000 | Graham Naisbitt
Dave You are so right about that point. I still use some cost models we ran up some 5 years ago. I took one to a customer and showed them that they could make $400K more PROFIT PER YEAR running OA v No-Clean. Their response? Well, we don't believe
Electronics Forum | Mon Feb 07 13:20:03 EST 2000 | Dave F
Graham STOP!!! You can not be totally serious. A five year old cost model counts bean, and beans are beans. I have to know more about the calculation. If this bores some of your gear-heads, click on "return." � Help me with the terms: - "Ops cos
Electronics Forum | Mon Nov 08 15:17:35 EST 2004 | caldon
The EMPF published a nice article, now old but relative, to Cleanliness. www.empf.org Under Technical Docs The listing is ... RR0013 - An In-Depth Look at Ionic Cleanliness Testing - August 1993. Cal
Electronics Forum | Thu Nov 02 07:45:15 EST 2006 | davef
For more than you want to know about static and dynamic testers, read EMPF report RR000013, "An In-Depth Look at Ionic Cleanliness Testing". Request it from http://www.empf.org/index.html#
Electronics Forum | Fri Dec 15 11:06:06 EST 2006 | Gman
Hello All, Is Ionic Cleanliness testing using say an Ionograph on No-clean assemblies a valid test? If not, why? I understand factors like PCB cleanliness but is the 1.56ug/in2 IPC criteria valid for no-clean assemblies and can an Ionograph be used
Electronics Forum | Tue Nov 15 21:15:22 EST 2005 | davef
A fairly painless method for monitoring cleanliness is Resistivity Of Solvent Extract [ROSE]. Equipment is: * Omegameter * Ionograph * Ion Chaser [Zero-Ion] Anyone who desires to use an Resistivity Of Solvent Extract tester should read EMPF repor
Electronics Forum | Fri Dec 07 10:34:05 EST 2012 | davef
Your machine is a quality control tool. It's good for measuring trends, like the way that you use the scale in your bathroom. It's not intended to be an absolute measure. Background on cleanliness tests * http://www.empf.org/empfasis/oct03/603clean.
Electronics Forum | Sun Jul 29 21:33:30 EDT 2001 | CAL
Your Ionograph and Zero-ion Values are set by you. There is no raw pass of fail criteria only the limits you set up. Ionograph is great for bare board resistivity (salt) test just as a pass fail for incoming inspection but this is all per your facto
Electronics Forum | Wed Mar 06 11:51:04 EST 2002 | caldon
The EMPF has a great Paper regarding the Omega meter. www.empf.org (Click the Tech Pubs Icon) Here you will find a host of technical papers. These papers were relevant in their time but most have proved to be irrelevant in current day manufacturing.
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