Researchers at North Carolina State University in the US have developed a technique for directly printing metal circuits that they claim could make it easier to manufacture flexible electronics.

The technique can use multiple metals and substrates and is compatible with existing electrohydrodynamic printing technology, which is already used in many manufacturing processes that use functional inks. However, instead of ink, the process uses molten metal alloys with melting points as low as 60°C.

As the scientists assure, this technology will make it possible to produce a large number of microcircuits at a much lower cost than using the usual methods. It is also interesting that the new technology can easily be integrated into the production of any equipment from printed circuit boards and microcircuits to flexible screens.