Researchers from the Department of Electrical and Computer Engineering under the Faculty of Engineering at the University of Hong Kong (HKU) and the Center for Advanced Semiconductors and Integrated Circuits (CASIC) have developed an ultra-wide bandgap (UWBG) semiconductor gallium oxide (Ga₂O₃) power module capable of handling megawatt-level power conversion, opening new possibilities for compact and highly efficient power systems in areas such as power grids, medical equipment and fusion energy.