What a J-STD-004 classification of "OR" means and what it doesn't mean
Most SMT fluxes and solder pastes are either classified as RO or OR. Every once in a while one will see an occasional RE flux. People typically recogn...
Eric Bastow's Blog
Galvanic Corrosion of Indium and Aluminum....Is it Really a Concern???
My colleagues and I have had several conversations with customers wanting to use indium against an aluminum surface, either for the sake of creating a...
Galvanic Corrosion of Dissimilar Metals
Not all metals play well together. And this spills over in to the world of electronics and the materials used therein. A relatively new and relevant e...
Classifying Fluxes Under The New IPC J-STD-004B
The current version of IPC J-STD-004 is revision B, often referred to as J-STD-004B. Interestingly, all previous revisions remain useable. Let’s...
Solder Paste and Summer Heat ... Hot Stuff!!!
It is summer time again in the Northern Hemisphere and many places, especially in North America, are experiencing record heat. It also seems that most...
SIR and ECM Testing For Water-Wash Solder Paste Fluxes
It is not often that we get a request for SIR (Surface Insulation Resistance) and/or ECM (Electro-Chemical Migration) results for a water washable/sol...