Japan Industrial Technology Research Institute uses microwave plasma CVD (chemical vapor deposition) method for the first time to produce crack-free single crystal diamond with a volume of 1 cubic centimeter. This time, the gas that is easy to expand the synthesis area is used as a raw material to produce the world's largest high-quality crystal. This achievement is an important step towards the realization of large wafers.
Power semiconductors are widely used in various products and equipment such as power infrastructure, automobiles, railway vehicles, industrial equipment, and home appliances. They are important devices that support these products and equipment to achieve high performance and energy saving. The results can be applied not only to the electronic field such as power semiconductors, but also to the spin electron field. Diamond can process quantum information with high spatial resolution at room temperature and atmospheric pressure, so it is expected to further improve the performance of sensors and quantum computing devices.