At a glance
| Booth | T9404 |
| Country | JP |
| Website | visioniv.co.jp/diamond-substrate-development |
Company profile
VISION IV Corporation develops high-purity single-crystal diamond substrates for quantum sensors, radiation detectors, and next-generation power semiconductors. The company develops, manufactures, and sells diamond substrates for semiconductor and sensor applications, with high-quality diamond substrates serving as a foundation for next-generation power semiconductors and sensors. Its approach combines scalable crystal growth with precise doping control to support reliable operation in extreme environments where silicon-based technologies are not suitable. VISION IV Corporation describes its diamond materials as providing high thermal conductivity, radiation hardness, and durability for demanding device environments. By connecting advanced materials science with industrial manufacturing, the company supports aerospace, nuclear, medical, and semiconductor applications. VISION IV Corporation is advancing commercialization of diamond-based devices for next-generation sensing and high-performance electronics.
Exhibits
VISION IV Corporation's core technology combines a high-quality synthetic-diamond manufacturing process backed by years of research and development with precision processing and application technologies designed to make effective use of diamond's properties. The company's Diamond Electrode-Integrated Anvil is used to evaluate material properties under high-temperature and high-pressure conditions, supporting work on new-material development and investigation of the Earth's internal structure. For diamond-substrate production, VISION IV Corporation uses a proprietary crystal-growth technique based on Microwave Plasma Chemical Vapor Deposition, or MPCVD. Its high-speed, large-area growth technology is described as achieving a world-class homoepitaxial growth rate to improve production efficiency. A defect-suppression process introduces a buffer layer to prevent propagation of crystal defects and to manufacture substrates with surface defect densities below 10³ cm⁻². Its thick-film growth technology suppresses crack formation and enables self-supporting thick films, and the company reports successful fabrication of the world's first freestanding single-crystal diamond (111) substrate made by the CVD method. VISION IV Corporation has also introduced ultra-high-concentration boron-doping techniques for p-type semiconductors. A development process combining quality engineering with AI enabled the company to establish diamond crystal-growth technology within six months of equipment installation. The company presents capabilities spanning materials development through mass production, with the objective of applying diamond technology to energy-related challenges. Its short-term roadmap, defined as 1 to 2 years, includes improving the Diamond Electrode-Integrated Anvil by expanding pressure and temperature ranges and integrating sensor functions. The same short-term roadmap includes stronger customization for specific applications and broader adoption among major domestic research institutions and universities. Over a 3 to 5 year horizon, VISION IV Corporation plans next-generation diamond synthesis with larger diameters, defect-free structures, and specialized functions, together with diamond components for semiconductor manufacturing processes. The medium-term roadmap also includes diamond-based products for quantum-technology applications and international expansion focused on Asian markets. Beyond 5 years, the roadmap calls for diamond-enabled energy and medical devices, a comprehensive diamond-technology platform, and a broader ecosystem around the technology. Across the portfolio, the same diamond-substrate technology is directed toward sensors and next-generation power semiconductors, linking MPCVD growth, defect control, thick-film growth, doping, processing, and application development.
Capabilities and products
- diamond substrate development, manufacturing, and sales
- MPCVD diamond crystal growth
- high-speed, large-area diamond growth
- diamond-substrate defect-suppression processing
- freestanding single-crystal diamond (111) CVD substrates
- ultra-high-concentration boron doping for p-type semiconductors
- precision processing and applications of synthetic diamond