CREE| Wolfspeed is a strong semiconductor company focused on silicon carbide and GaN technology. The company's products are mainly arranged around silicon carbide, mainly including materials, power devices and radio frequency devices. 1) Semiconductor materials: necessary for the production of devices, mainly including silicon carbide materials (including silicon carbide substrate, silicon carbide epitaxial sheet), gallium nitride materials (gallium nitride epitaxial sheet based on silicon carbide substrate), of which the core product is silicon carbide substrate. 2) Silicon carbide power device: Power device based on silicon carbide material production, mainly including silicon carbide Schott diode, MOSFET, power module, gate driver. 3) Silicon carbide RF products: RF devices based on gallium nitride materials, mainly including chips based on gallium nitride, high electron mobility transistor HEMT, monolithic microwave integrated circuit MMIC, transverse diffusion MOSFET LDMOS power transistors, etc.