#Japan #Tokyo #Diamond Semiconductor #Power Diamond #Toray Research

Advancing Next-Generation Diamond Semiconductor Technology

In a significant step forward for the field of power electronics, Power Diamond Systems (PDS) and Toray Research Center (TRC) have officially commenced a collaborative research initiative aimed at accelerating the practical application of next-generation diamond semiconductor devices. This partnership, guided by a basic agreement, will leverage state-of-the-art material analysis and interfacial analysis techniques to visualize the fine structures, impurity distributions, and interfacial characteristics of diamond semiconductors with high precision. The ultimate goal is to establish an evaluation foundation that supports enhancements in semiconductor device performance and reliability.

Background and the Need for Innovation

The demand for enhanced efficiency and miniaturization in electric vehicles, renewable energy applications, and industrial power control equipment highlights the critical importance of developing next-generation power semiconductor devices. Diamonds have emerged as a promising material due to their exceptional thermal conductivity and wide bandgap, which offer performance capabilities that surpass conventional power semiconductor materials. However, to realize their potential in practical applications, the technical community must better understand how the fine structure, interfacial conditions, impurities, and crystal defects in diamond materials impact device performance and reliability. Therefore, establishing a robust technical foundation for precision evaluation and analysis is necessary to translate these insights into materials and process development.

The Objective of Collaboration

Through this joint research endeavor, PDS and TRC aim to merge TRC's expertise in high-precision material analysis with PDS's capabilities in diamond power semiconductor device design and process technology. The intent is to systematically clarify the correlations between the material properties, fine structures, interfacial states, and the resulting device performance and reliability. The insights gained from TRC's detailed analyses at the nanoscale level will be swiftly integrated back into PDS's material and process development workflows. This coordinated approach will result in an advanced materials development cycle, ensuring tighter integration between analysis and development.

By enhancing the performance and reliability of diamond power semiconductors, the partnership seeks not only to contribute to their practical application but also to accelerate their mass production, laying the groundwork for a new era in power electronics.

Commentary from Dr. Tatsuya Fujishima, CEO of Power Diamond Systems

Since our establishment in August 2022, PDS has been committed to paving the way for the next generation of power electronics through research and development of diamond power semiconductors. Our focus extends beyond improving device structures and process technologies; we prioritize enhancing performance and reliability with a keen eye towards societal implementation. A critical aspect of realizing the potential of diamond power semiconductors lies in the precise evaluation of fine structures, interfacial states, impurities, and crystal defects, which must be quickly translated into device development. By initiating this collaboration with TRC, a leader in advanced materials analysis, we aspire to fuse our research capabilities, ultimately leading to significant enhancements in performance and reliability. We will continue to push the boundaries of materials and process development in tandem with TRC, driving towards the rapid practical application and mass production of diamond power semiconductors and contributing to the realization of next-gen power electronics in society.

Insights from Naoki Muraki, Executive Director at Toray Research Center

At TRC, we have consistently supported our clients in overcoming challenges in research and technology development through our expertise in material analysis and evaluations. We regard this joint research on diamond semiconductor device evaluation, in collaboration with PDS, as profoundly significant. For the practical application of diamond semiconductor devices, it is crucial to precisely evaluate the fine structures, interfacial states, impurities, and crystal defects in the materials while elucidating their relationship with device performance and reliability. Leveraging our advanced analysis capabilities, particularly in nanoscale structure and interfacial analysis, we are committed to building an evaluation foundation that will significantly contribute to PDS's material and process development. Through this collaborative research, we aim to deepen material understanding and enhance the development cycle, ultimately supporting improvements in the performance and reliability of diamond semiconductor devices and facilitating their social implementation as next-generation power semiconductors.

Company Overviews

Power Diamond Systems: A startup focused on the research and development of diamond semiconductor devices, PDS aims to achieve ultra-compact and highly efficient inverter modules that significantly contribute to energy saving in an evolving energy society.

Toray Research Center: Specializing in a wide range of fields from semiconductors to bio-pharmaceuticals, TRC offers comprehensive material analysis and evaluation services that support clients’ research, technology development, and product development challenges.