News: Suppliers
28 September 2026
Wolfspeed adds Premium power substrates to 200mm silicon carbide portfolio
Wolfspeed Inc of Durham, NC, USA — which makes silicon carbide (SiC) materials and power semiconductor devices — has announced the commercial availability of its new Premium 200mm n-type silicon carbide substrate, expanding its 200mm SiC materials portfolio with a higher-quality starting material designed to improve yield through reduced defects and greater wafer-shape stability.
As the SiC devices industry pushes toward higher voltages and larger die sizes, material-level quality and wafer consistency have become critical differentiators, says Wolfspeed. The firm adds that its Premium 200mm n-type SiC substrate delivers a multi-metric leap in quality, spanning defect density, micropipe count, and wafer shape stability.
By removing variability from the starting material, Wolfspeed says that its premium material gives silicon carbide device manufacturers a more predictable, higher-yielding starting material, increasing the probability of first-time design success and reducing qualification delays at a time when the margin for error is shrinking.
“We’re giving customers a stronger foundation for developing increasingly demanding silicon carbide devices, backed by the manufacturing experience and scale to support them as needs grow,” says Dr Cengiz Balkas, executive VP, Materials business unit.
Wolfspeed’s Premium 200mm n-type SiC substrate delivers fewer than 0.01 micropipes per square centimeter, or fewer than three micropipes per wafer (as validated by x-ray topography using the industry-standard method), as well as low threading screw dislocations. Combined with Wolfspeed’s proven wafer-shape and lot-to-lot consistency, the higher bare-wafer quality translates directly into better epitaxial performance, achieved entirely within customers’ existing epitaxy processes, says the firm.
Backed by mature manufacturing processes and deep materials expertise, Wolfspeed says that its premium material delivers higher yield per lot and improved manufacturing economics. The product can be ordered now, with dedicated capacity and a clear product expansion roadmap. The firm adds that it has the ability to quickly ramp new capacity as market demand grows within its established large-scale silicon carbide manufacturing facility.
Wolfspeed’s 200mm manufacturing operations have been in continuous production since 2022, reflecting more than four years of process refinement and yield improvement and establishing a mature, reliable supply foundation.
Wolfspeed announces commercial launch of 200mm silicon carbide wafers
