TOKYO -- Japanese companies are moving to mass-produce gallium nitride (GaN) power semiconductor devices for electric vehicles, which stand to gain increased driving range, but high costs remain a hurdle.
Sumitomo Chemical and others work to enlarge substrates for power semiconductors
A wafer for GaN power semiconductor devices. The devices have very low power loss and could drastically speed up EV charging. (Photo obtained by Nikkei)
TOKYO -- Japanese companies are moving to mass-produce gallium nitride (GaN) power semiconductor devices for electric vehicles, which stand to gain increased driving range, but high costs remain a hurdle.