Silicone gel is a high-performance polymer material widely used in power module packaging due to its excellent electrical insulation, high-temperature resistance, flexibility, and chemical stability. Power modules, as the core components of power electronic systems, require packaging materials with good thermal conductivity, insulation, and mechanical stress resistance. Silicone gel effectively fills internal gaps, provides excellent electrical insulation and mechanical protection, and absorbs thermal stress caused by temperature fluctuations, thereby extending the module's service life.