Electronics Forum | Mon Jul 10 21:01:06 EDT 2000 | Dave F
Edmund: Responding to your questions: 1 What is purpose of using DI water to wash a PCBA? Compared to tap water, DI water is less likely to leave: � Metal cations on sensitive components. � Salts of Ca, Mg, and other stuff on metals on the assemb
Electronics Forum | Thu Nov 02 17:15:48 EST 2006 | Mike Konrad
Asoe, The systems you are describing are Resistivity of Solvent Extract (ROSE) Testers. These systems are available using one of two technologies, Static or Dynamic. Both systems use a calibrated test solution comprised of IPA and DI water. The t
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 | Wed Feb 04 21:06:07 EST 2009 | shan
I'm looking for test labs in Taiwan that are capable of performing ionic contamination testing on small to medium sized SMT boards. I'm interested in both ion chromatography and ROSE test methodologies. Is anyone aware of any labs performing contami
Electronics Forum | pdeuel |
Wed Sep 22 22:13:29 EDT 2004
Electronics Forum | Tue Sep 21 13:24:17 EDT 2004 | GS
Hello, does any one please can tell me if any Standard says how much is the Total Ion Contamination ( ugr/NaCl sqcm equivalent, Br- in particular way) allowed on Connector surface/body ? (ie. DIMM connectors, and similar). Many Thanks in advan
Electronics Forum | Sat Sep 25 03:44:38 EDT 2004 | GS
Thanks Davef, unfotunately in order to keep TIC of PBA inside our customer TIC requirements, we have to pre-wash (DI water only)connectors before assembly. Too high level of Br- continuosly get released by connectors molding compound. Our assemb
Electronics Forum | Wed Sep 22 22:30:50 EDT 2004 | davef
We are aware of no such standard. You need to determine the acceptable level for your product in its use environment.
Electronics Forum | Sun Feb 26 17:40:35 EST 2006 | GS
Hi, just my comment, theoretically No Clean means no Ion Contaminants from Flux, but it some some case ion contamination (Cl-Br-F) could come out from raw PCBs, from Components, from fingerprints, etc. To incorporate a ROSE step in the pro
Electronics Forum | Wed May 11 14:02:53 EDT 2011 | pct1410
I am looking for a used Aqueous Technologies' Zero-Ion Ionic Contamination Tester. If anyone has a used one for sale please contact me! Thank you
