Electronics Forum | Sat Jun 23 07:34:26 EDT 2007 | davef
This sounds like a form of corrosion called electromigration. It creates cathode anodic filaments. They have a fern like shape because it is a metallic based crystal structure. Electromigration requires: * Difference of electrical potential * Chemica
Electronics Forum | Thu Sep 11 16:14:59 EDT 2008 | adamcrum
Our DI system has a carbon cylinder and a mixed bed cylinder. This is from the Mfgr website: "The Technical Devices' Nu/Clean Recirculating Water Deionizing System is engineered to remove all organics, chemicals, and heavy metals via particle
Electronics Forum | Sat Nov 29 05:01:11 EST 2008 | sandeepnarkhede
Dear all, Can anybody send me service manuals for TDK make VC-7A,VC-7B,& VC-5B radial ion machine . Pls help me !!!!!!! Thanks Sunny.
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 | Wed Jan 30 12:04:28 EST 2013 | caerleon
We have a device that uses the same technology of Li-Ion battery. We had a problem with charging and over charge part of the circuit. The issue was that the battery and the charger had the same inbuilt safety circuit to protect it from overcharge and
Electronics Forum | Tue Oct 27 07:09:37 EDT 2015 | prameel_84
Hi Everyone, I got an approval to buy a Ionic Contamination Tester in my company, hence i require expert advise to proceed further for machine procurement At present I've fixed for Zero-Ion G3 Ionic Contamination of Aqueous Technologies and SMD V T
Electronics Forum | Wed Nov 29 21:00:02 EST 2017 | truthseeker
Thx for following up. We have a small PCB in a defense application that has copper sulfide issues. We are using Ion chromotagraphy to track down varions ionic species including sulfates. Your post was a aha moment for me. We have a sample being analy
Electronics Forum | Fri Jun 05 10:24:56 EDT 1998 | Earl Moon
| I have just been assigned to look into the ionic chromotograhy test on our PCBA but I have zero knowledge. Could anyone help to explain what is this test about? Is it | a) a destructive test? | b) What is the measurement unit of this test? | c) Wh
Electronics Forum | Wed Feb 02 12:11:31 EST 2000 | Dave F
Casimir: Resistivity of Solvent Extract (ROSE) testers measure ionic contamination by washing boards with a DI water/IPA solution. (No-clean people: Stop and go on to something else.) The testers are process control instruments used to monitor a
Electronics Forum | Sat Jan 27 08:45:43 EST 2007 | davef
[clipped] Chemistry of Hard and Soft Water From Anne Marie Helmenstine, Ph.D., Your Guide to Chemistry. Water Works I'm sure you've heard the terms 'hard water' and 'soft water', but do you know what they mean? Is one type of water somehow better th
