Abstract: In this paper a kind of solid state power controller was designed and fabricated using thick film hybrid circuit technology. The key fabrication processes such as components relow process and stick process were studied and finally the batch production was realized. Solid state power controller products went through the screening test according to General Specification for Hybrid Integrated Circuits (GJB 2438B—2017). The screening procedure includes thermal shock, high temperature power burn-in test, constant acceleration, hermetic sealing test and particle impact noise detection (PIND). Also, 1000h life test was applied to samples after the screening test. The internal water vapor content was measured which is far below the requirement of Test Methods and Procedures for Microelectronic Device (GJB 548B—2005).