Core Viewpoint - The article discusses the advancements in diamond semiconductor technology, highlighting its potential applications and the efforts of Power Diamond Systems (PDS) in this field [1][2]. Group 1: Company Background - Power Diamond Systems (PDS) was established in August 2022, originating from Waseda University, with the aim of applying academic research to societal needs [2]. - The company was founded with the support of Waseda University Venture Company (WUV) and has a strong research background in diamond semiconductors [2]. Group 2: Characteristics and Applications of Diamond Semiconductors - Diamond semiconductors exhibit exceptional thermal conductivity and dielectric breakdown strength, surpassing silicon carbide (SiC) and gallium nitride (GaN), making them top-tier materials for power semiconductors [3]. - Potential applications for diamond semiconductors include electric vehicles, data centers, renewable energy, and harsh environments like aerospace and nuclear power [3]. Group 3: Development Progress and Device Features - PDS is developing a vertical diamond MOSFET, which features low resistance and high voltage tolerance, enhancing power density while maintaining efficient operation due to diamond's high thermal conductivity [4]. - A working model of the diamond MOSFET was demonstrated at the SEMICON Japan exhibition in December 2025, showcasing the progress in their research and development [4]. Group 4: Future Outlook and Challenges - Full societal application of diamond semiconductors is expected to occur in the 2030s or 2040s, with the 2020s focused on identifying target application areas and initiating large-scale production technology development [8]. - Building an ecosystem through collaboration with supply chain partners is crucial for the successful application of diamond semiconductors [8]. - Concerns about the high cost of diamond substrates are acknowledged, but it is believed that significant performance advantages and market demand will drive cost reduction efforts [9]. Group 5: Collaboration and Market Engagement - PDS prioritizes collaboration with potential user companies currently utilizing silicon or SiC devices, aiming to understand their challenges and expectations for diamond semiconductors [10]. - The company is actively engaging with multiple firms using power semiconductors to enhance the feasibility of diamond semiconductor technology in societal applications [11].