Japanese company develops silver ink that requires no heat to harden
(PhysOrg.com) -- Consider for a moment, all the circuit boards that have been made, particularly those in the past few years. Most have two parts to them, not including the board itself. The first are parts that do things, like the computing that goes on in chips. The other part is the silver on the surface of the board that serves as a sort of wiring, connecting all the other parts together. Nowadays, the silver is printed onto the circuit board, a process that has become mechanized. But the thing is, the silver has to be made to harden to do its job, and that generally requires heating it. That may be changing though, as it appears a Japanese company called Tanaka Kikinzoku Kogyo K.K. has figured out a way to harden silver onto a surface using ultraviolet light instead of heat.