It is reported that researchers at Purdue University have developed a laser processing technology similar to newspaper printing, which can produce smoother and more flexible metal components that can be used to produce ultra-fast electronic devices. This technology combines the industry's laser pointer tool for large-scale metal fabrication, but uses the speed and precision of roll-to-roll newspaper printing.
Mobile phones, laptops, tablets, and many other electronic products rely on their internal metal circuitry for high-speed processing of information. Current metal fabrication techniques tend to fabricate circuits by passing ultra-thin liquid metal droplets through a circuit-shaped stencil mask. Ramses Martinez, assistant professor of industrial engineering and biomedical engineering at Purdue University, said: "This manufacturing technology creates a rough metal surface that causes the electronics to heat up and the battery to drain faster."
Future ultra-fast devices also require smaller metal parts, which requires higher resolution to produce nano-sized materials. Martinez said: "The formation of smaller and smaller metal shapes requires higher definition molds until nanoscale dimensions are achieved. The latest advances in nanotechnology require us to pattern metals that are even smaller than they are made. Made of particles."
Researchers have solved the problem of rough surfaces and low resolution by using a large-scale laser pointer method that can form smooth nanoscale metal circuits using conventional carbon dioxide lasers (carbon dioxide lasers are now commonly used for industrial cutting and engraving).
This manufacturing method, called the scroll-type laser pointer, induces superplasticity, using a rolling impression like a high-speed printed newspaper. This technology can induce the "superelastic" behavior of different metals by applying high-energy laser irradiation in a short time, so that the metal can flow into the nano-scale characteristics of the rolling stamp, breaking through the forming performance limit.