SiC Materials
Materials Products
Delivering quality at scale
As a pioneer in silicon carbide, we are leading the industry’s transition to the 200mm n-type wafers with an intense focus on continuous improvement, unwavering quality and cost reduction. Grounded in our years of experience, our passion and the best technology, we deliver n-type conductive SiC products and a variety of SiC epitaxy options at scale necessary to meet growing demand for higher-performing, more efficient silicon carbide solutions.
Wolfspeed continues to achieve breakthroughs in SiC technology, demonstrating 300 mm Silicon Carbide Wafers. For more information, please .
We believe in a better, more sustainable future. Together, with the world's leading electronics manufacturers we can make that future real today.
Products
Physical Properties
Polytype | Single-Crystal 4H |
Supported diameters | 150mm & 200mm |
Crystal structure | Hexagonal |
Bandgap | 3.26 eV |
Thermal conductivity (n-type; 0.020 Ω*cm) | a~4.2 W/cm • K @ 298 K c~3.7 W/cm • K @ 298 K |
Thermal conductivity (HPSI) | a~4.9 W/cm • K @ 298 K c~3.9 W/cm • K @ 298 K |
Lattice parameters | a=3.073 Å c=10.053 Å |
Mohs hardness | 9 |
Dimensional Properties, Terminology, & Methods
Diameter | The linear dimension across the surface of the wafer. Measurement is performed using an automated micrometer, traceable to the ANSI standard, providing the average value for each individual wafer. |
Thickness, Center Point | Measured with ANSI-certified non-contact tools at the center of each individual wafer. |
Surface Orientation | Denotes the orientation of the surface of a wafer with respect to a crystallographic plane within the lattice structure. In wafers cut intentionally “off orientation,” the direction of cut is parallel to the primary flat, away from the secondary flat. Measured with x-ray goniometer on a sample of one wafer per boule in the center of the wafer. |
Orthogonal Misorientation | In wafers intentionally cut “off orientation,” the angle between the projection of the surface normal onto a (0001) plane and the nearest [1120] direction. |
Materials Tools & Support
Materials Catalog
DownloadMaterials Parts Builder
Start BuildingMaterials Document Library
Browse DocumentsContact the Materials Team
Knowledge Center
PowerMakers:
How Wolfspeed’s Fayetteville Team Turns Silicon Carbide Expertise into Customer Momentum
At our Fayetteville site, Ty McNutt and his team don’t just solve for specs —they rethink systems. That’s the difference between supplying parts and becoming the partner customers rely on.