6G Terahertz Devices Demand 3D Electronics

Smartphones have a scaling problem. Specifically, the radiofrequency (RF) filters that every phone—and every wireless device in general—uses to extract information from isolated wireless signals are too big, too flat, and too numerous. And without these filters, wireless communications simply wouldn’t work at all.“They are literally the entire backbone of…

This Transistor Can Be Reconfigured on the Fly

Computer operations are a straightforward process: Specific sets of transistors carry out predetermined logical functions. But computer researchers have hoped that someday, electronic circuits would not be stuck doing only one specific task. Instead, the idea is that circuits could be switched to perform various functions as the situation demanded—a…