On the 15th, foreign media reported that Japanese precision component manufacturer Orbray and automotive semiconductor research company Mirise Technologies (a joint venture established by Japan Electronics and Toyota Synthetic in 2020) have reached a strategic partnership to jointly develop vertical structure diamond power devices.http://www.ic-bom.com/

It is reported that the cooperation project lasts for 3 years, and Orbray and Mirise will utilize their respective technologies, resources, and professional knowledge in the field of diamond substrates and power devices to jointly develop vertical diamond power device technology, targeting the vast electric vehicle application market.

In the cooperation between the two parties, Orbray will mainly be responsible for developing p-type conductive diamond substrates, while Mirise will be responsible for developing high-voltage operating device structures, with the aim of proving the feasibility of vertical diamond power devices.

As the name suggests, diamond semiconductor is a power electronic device manufactured based on diamond materials. It uses the unique properties of diamond, such as high thermal conductivity, high electron mobility and high breakdown field strength, to achieve high efficiency and high power power conversion and control.http://www.ic-bom.com/

Compared to traditional silicon power semiconductors and third-generation semiconductors such as SiC and GaN, diamond power semiconductors have better thermal and electrical properties. Due to its excellent thermal conductivity (heat dissipation performance), diamond can effectively dissipate heat, improving the stability and reliability of the device.

In addition, diamond materials also have high electron mobility, which can make power devices have lower on resistance and higher switching speed, thus providing higher power density and faster switching speed. Therefore, diamond is sometimes called the "ultimate semiconductor material".

Obviously, diamond power semiconductor devices have broad application potential in high-power applications. In applications such as electric vehicles, solar inverters, industrial power supplies, and radar systems, diamond power semiconductors can improve energy conversion efficiency, reduce energy loss, and improve system performance and reliability. For example, in electric vehicles, the use of diamond based next-generation automotive power semiconductor devices can help improve fuel efficiency, reduce power consumption, and battery costs.http://www.ic-bom.com/

However, diamond semiconductors also face technical challenges at present, such as the small diameter size of the wafer being unable to meet usage needs. In order to solve the problem of industrialization of diamond materials, Japanese companies have been actively conducting relevant research work for many years, among which Orbitray is one of them. Orbray has developed a production method for heteroepitaxial growth of diamond wafers on sapphire substrates, and has successfully manufactured 2-inch wafers with the goal of producing 4-inch and 6-inch diamond wafers in the future.

Next, the collaboration between Orbray and Mirise is expected to promote the industrialization and commercialization of diamond power devices. In addition, with Mirise‘s experience and resources in the field of automotive semiconductors, Orbray is also expected to accelerate the provision of better solutions for the electric vehicle application market.http://www.ic-bom.com/