With the pursuit of high-quality life in modern families and the popularity of smart home systems, the household appliance industry is experiencing unprecedented technological innovation and demand growth. In this development trend, power semiconductor devices play a pivotal role. As the core component of electric energy conversion and control, power semiconductor devices not only determine the energy efficiency level, operating stability and service life of household appliances, but also directly affect the degree of intelligence and response speed of products. From energy-efficient variable frequency air conditioners and refrigerators to rapidly heating smart kitchen appliances, the application of power semiconductor devices has greatly enriched the functionality and user experience of household appliances. Therefore, with the continuous thirst for energy-efficient and intelligent products in the home appliance market, the demand for high-performance and high-reliability power semiconductor devices has become increasingly urgent, which has promoted the continuous progress and industrial upgrading of technology in this field, forming a huge market demand and broad space for development.