News: Suppliers
5 August 2025
Kyma and Novel Crystal Technology collaborate on gallium oxide epiwafers
Kyma Technologies of Raleigh, NC, USA and Novel Crystal Technology Inc (NCT) of Sayama, Saitama, Japan are collaborating to develop gallium oxide (Ga2O3) epiwafers, aiming to accelerate the commercialization of Ga2O3 devices for high-voltage power electronics applications including electric vehicles, renewable energy, aerospace, and industrial systems.
Gallium oxide offers significant advantages over traditional silicon and other wide-bandgap materials such as silicon carbide (SiC) and gallium nitride (GaN), including a higher breakdown electric field and the potential for lower production costs. However, a major industry bottleneck remains the limited availability of device-grade Ga2O3 epitaxial wafers with consistently low defects and scalable production methods.
By combining NCT’s expertise in producing high-quality bulk Ga2O3 substrates with Kyma’s epitaxial growth capabilities, the firms aim to develop processes to produce large-area (150mm-diameter) epiwafers suitable for multi-kV-level power devices.
Kyma and NCT have already worked together for many years. Now, Kyma’s epi services on NCT substrates (up to 100mm diameter) are available for sale to the broader research and development community. These epiwafers are expected to enable a new generation of power semiconductor devices that deliver higher efficiency and performance in demanding applications. For on-going power device development work, the technical teams at Kyma and NCT will be collaborating closely, including on specific customer requirements.
“Our partnership leverages the best of both companies’ technologies to push the boundaries of Ga2O3 epiwafer production,” says Kyma’s president & CEO Heather Splawn. “Novel Crystal Technology manufactures the best Ga2O3 substrates in the world, and we are thrilled that Kyma can now offer our unique epi growth on those substrates to our customers,” she adds.
“We are excited to work with Kyma Technologies to further develop high-quality Ga2O3 epitaxial wafers,” NCT’s president & CEO Akito Kuramata. “Together, we aim to accelerate the adoption of Ga2O3 devices worldwide, supporting critical industries and technology sectors.”
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