Electronics Forum | Mon Feb 02 07:55:37 EST 2004 | pjc
Rick, Ultrasonics can damage some components that react to the mechanical action of the ultrasonics inside the device. Some component mfr data sheets will comment on ultrasonics. Better safe than sorry. Dean makes a good point if you can change so
Electronics Forum | Mon Apr 12 07:50:21 EDT 2004 | wgaffubar
We use a dish washer system with good success. The only issue is foaming, sometimes this can be a problem. We have be experimenting with antifoaming chemicals. Some success. I would suggest a dish washer system that has ionic system in the wash pump
Electronics Forum | Fri Oct 29 09:08:21 EDT 2004 | davef
Electrochemical migration under conformal coating: That's possible. Very few conformal coatings are water resistant. So, if you have ionic material on your board, standback. Uncured material under several IC: Materials like yours need moisture fro
Electronics Forum | Mon Nov 01 13:25:29 EST 2004 | Dreamsniper
Hi Guys, Maybe you could help me with the above. We are doing IPC Class 3 products and would like to know more about the difference between the 2. We have an Omegameter, do we need an Ionograph too? Which one between the 2 is effective in Ionic Cont
Electronics Forum | Mon Nov 01 14:44:15 EST 2004 | pjc
Ionograph measures conductivity while the Omegameter measures resistivity. They both accomplish the same task in terms of ionic contamintation detection, but go about it a different way. One is really no more accurate than another. For more informati
Electronics Forum | Thu May 19 17:03:11 EDT 2005 | splice1
Hi all, There are no ground layers which makes the non wetting rate a bit confounding. The foam fluxer has not been cleaned in a while though, while there is a strong evidence of fluxing by running blank paper and looking up the top side
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 | Tue Jul 11 16:17:22 EDT 2006 | jimc
Need help with an 1994 vintage Alpha Metals Omegameter 700 (OM700) Ionic Contamination tester. These machines apparently came with a unique password to access the configuration. The original factory-configured password has been long lost. I'm wo
Electronics Forum | Thu Jul 27 04:29:18 EDT 2006 | pbarton
We have our waste water tested periodicially by a local lab to ensure that we are in compliance with local discharge regulations and as part of ISO14001 approval. This analysis includes levels of metals as well as organics, but it will tell you littl
Electronics Forum | Wed Dec 27 20:33:50 EST 2006 | greg york
water alone especially cold is not good enough, how do you check for hasl fluids when most residues left behind after improper cleaning are non ionic. Use 40C saponifier followed by heated rinse then cold rinse then DI rinse followed by dry.Nylon bru
