Research on Anti-Radiation Hardening Technology of Packaging

The total dose effect of space environment radiation on aerospace grade devices will lead to the gradual decline of device performance parameters with dose accumulation. The mainstream ways of radiation resistance reinforcement are chip design and process reinforcement, which have the problems of long design cycle, high cost of streaming and verification. To solve this problem, in order to reduce the research and development threshold of aerospace devices with small batch and multi batch characteristics, an electronic radiation shielding design for packaging radiation resistance reinforcement is proposed. In this paper, the radiation of different particles is analyzed by gent4 software. Based on the action mechanism of high-energy electrons and shielding materials, aiming at the total dose effect of electron radiation, the composite structure can effectively shield the effect of high-energy electron radiation and its secondary radiation in space environment.