Semiconductor Power Devices Physics Characteristics Reliability File

Semiconductor power devices are the backbone of modern power electronics, acting as high-efficiency switches or rectifiers that manage large amounts of electrical power in applications ranging from renewable energy to electric vehicles. 1. Fundamental Device Physics

The material's bandgap determines its thermal stability and breakdown voltage. While Silicon (Si) has been the workhorse with a 1.1 eV bandgap, Wide Bandgap (WBG) materials like Silicon Carbide (SiC, ~3.3 eV) and Gallium Nitride (GaN, ~3.4 eV) allow for much higher critical electric fields. Semiconductor power devices are the backbone of modern