CrystX™ Silicon Carbide for Rapidly Expanding Markets
As a semiconductor substrate, silicon carbide (SiC) is a high-demand, very efficient crystal material that can handle high voltages and high thermal loads. With decades of experience producing high-quality crystal materials, GT Advanced Technologies has introduced its CrystX™ silicon carbide for rapidly expanding power electronics applications such as electric vehicles. The form factor for the product is 150mm (6″) diameter. Resistivity is 20 mΩ-cm ±5. Upon request, this can be tuned to a 2 mΩ-cm range.
GTAT supplies its CrystX™ silicon carbide to partners downstream who specialize in wafering and polishing. Still further downstream, devices are placed on the wafers. The devices go into power inverters, power converters, and other electronic modules. Because GTAT focuses solely on silicon carbide, it can help grow the number of companies offering SiC wafers. As more companies evolve to provide SiC wafers based on GTAT’s material, global supplies of this crucial substrate will increase and costs will fall.
Key product attributes of CrystX™ silicon carbide include usable height (UH) of 25 mm or greater and fewer than 0.5 micropipes per square centimeter.
GTAT has two parallel focus points for CrystX™ silicon carbide: making the material affordable, and making it available in high volume. First, we do this by ‘dialing in’ the process and then perfecting it. Second, we’re applying decades of experience producing and then deploying our proprietary crystal-growth systems to scale rapidly as demand for silicon carbide accelerates in the coming years.
Silicon Carbide for Electric Vehicles
The electric vehicle market is surging. You can see it everywhere you look. Car and truck makers have impressive models on the road now and many more soon to come. Silicon carbide will play a huge role in advancing the mass adoption of EVs because it enables circuits and modules to be extremely small and light, which in turn boosts battery efficiency and range.
Charging stations are also evolving. Widespread deployment of 350kW chargers is a reality now, and 475kW versions are close at hand. This can provide a range boost of anywhere from 220 to 300 miles after only ten minutes of charging time!
Silicon carbide is the substrate material allowing this to happen, and GT Advanced Technologies is scaled to meet demand!