To accelerate the real-world implementation and global adoption of Ga2O3, the next-generation energy-saving power semiconductor that drives a more sustainable future.
FOX Co.,Ltd.
The origin of a company name Functional Oxide X'tal
About Us
Establishing a Low-Cost, High-Efficiency Manufacturing Technology for Gallium Oxide Semiconductor Substrates
In collaboration with Tohoku University, we will produce high-quality gallium oxide, a promising wide bandgap semiconductor, primarily using the OCCC method—not require precious metal crucibles.
Our proprietary “OCCC method” is an innovative crystal growth technology. This groundbreaking approach replaces the typically expensive iridium used in conventional crystal growth with inexpensive materials like copper and water, enabling significant cost reduction while maintaining high quality.
FOX's Business Areas
Ingot
Single Crystal Manufacturing
Polishing
Film deposition
wafer completed
Foundry semiconductor manufacturer
Product
Reason why we specializing in wafer and material manufacturing
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An area where the player is limited and where a game-changing breakthrough is assuredly achievable through technological innovation.
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Japan holds the initiative in wafer manufacturing.
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Developing alternative technologies is difficult, enabling the long-term preservation of competitive advantage.
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By specializing in wafer manufacturing, we can serve many semiconductor suppliers as customers.
Driving the Social Implementation and Widespread Adoption of the Next-Generation Energy-Saving Power Semiconductor β-Ga2O3
As a wide bandgap semiconductor, β-Ga2O3 possesses superior characteristics that enable highly efficient power conversion, making it highly anticipated as a next-generation energy-saving power device.
By advancing R&D and mass-producing high-quality, low-cost substrates, we will support the social implementation and widespread adoption of new power semiconductor devices utilizing β-Ga2O3.
As a mass-production wafer manufacturer, we will collaborate with power semiconductor development companies to expand demand and markets in electric vehicle and renewable energy infrastructure.
Our Vision: Sustainable Manufacturing Technologies and Environmental Impact Reduction
The OCCC method, which enables crystal growth without the use of precious metal crucibles, is attracting attention as an innovative technology that fundamentally improves the life cycle assessment (LCA) of β-Ga2O3 wafer manufacturing processes for next-generation power semiconductors. It enhances material utilization efficiency while significantly reducing environmental impact.
By promoting the social implementation and widespread adoption of β-Ga2O3 power semiconductors, our company aims to fundamentally address the issue of power loss inherent in conventional Si semiconductors. Through this initiative, we will drive the development of environmentally conscious power semiconductor technologies and contribute to achieving carbon neutrality in the power sector by 2050.
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Growth of β-Ga2O3 crystals using the OCCC method
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β-Ga2O3 crystals using the OCCC method
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β-Ga2O3 wafer (8mm×10mm)
*NICHe: New Industry Creation Hatchery Center (Collaborative Research Center for Future Science and Technology)
*OCCC: Oxide Crystal growth from Cold Crucible
*LCA: Life Cycle Assessment
Please see below for papers on the OCCC method.
Message
FOX Co., Ltd. was established in April 2024 to overcome the cost challenges and technical barriers in manufacturing gallium oxide (β-Ga2O3) power semiconductors by utilizing innovative technology originating from university research.
Gallium oxide is a core material for realizing next-generation energy-saving and highly efficient power conversion.
Through significant reductions in substrate costs and the establishment of a mass production system, we will accelerate the social implementation of power semiconductors and contribute to realizing a decarbonized society.
By inheriting and developing this technology, we will lead the revitalization of Japan's semiconductor industry and the transition to a carbon-neutral society.
We sincerely ask for your continued support.
Representative Director
Company
- Company Name
- FOX Co., Ltd.
- Head Office
- 1-12-2 Ichibancho, Aoba-ku, Sendai, Miyagi
- Established
- April 11, 2024
- Representative
- Akira Onodera, President and Representative Director
- Capital
- 214 million yen
- Business Activities
- Development, design, prototyping, testing, analysis, and evaluation of crystal materials
Manufacturing of crystal materials and semiconductor products
Manufacturing and sales of crystal materials and their applied products
Consulting on R&D, manufacturing, sales, and evaluation of crystal materials - Major Shareholders
- Iwatani Venture Capital (in Japanese alphabetical order)
Tohoku Tech Ventures
Macnica Investment Partners - Board of Directors
- Director: Akira Onodera
Director: Masanori Kitahara
Director: Ikuhiro Shoji
Auditor: Yoshiyuki Kawazoe (Senior Research Fellow, NICHe, Tohoku University)
Technical Advisor: Akira Yoshikawa (Joint Professor, NICHe, Institute for Materials Research, Tohoku University)
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