[Stephen] often finds the need to make his own PCBs at home, and when he got the urge to do some etching recently, he realized that he was fresh out of “Ferret Chloride and Bureaucratic Acid*.” ...

While it’s possible to just buy (or make) a cupric chloride solution by treating scrap copper with hydrochloric acid, it’s easier to just throw all the ingredients together with the PCB to be ...

Flux residues have been the bane of reliability of PCB assemblies (PCBAs) from the first time they ... These fluxes were composed of organic acids such as adipic acid or citric acids. These organic ...

The aerobic bacteria break the PCB's aromatic rings, and the end product is mineralized carbon dioxide and hydrochloric acid. Findlay, Fogel, and their team have been involved in studying ...