Research and design of anti-radiation analog CMOS integrated circuits

The characteristics and effects of analog CMOS integrated circuit on spacecraft were analyzed in the radiation environment. Based on the generation of radiation effect, the main anti-radiation design methods were introduced for the analog CMOS integrated circuit designing and processing. In the outer space, threshold voltage deviation, transdiode decreasing, substrate leakage current increasing and corner noise amplitude increasing occur to the CMOS semiconductor components in the analog CMOS integrated circuit. As a result, there are three kinds of methods proposed to protect against radiation of the analog integrated circuits, including anti-radiation analog CMOS integrated circuit', anti-radiation PCB' and silicon on insulator anti-radiation processing. Accordingly, the designed anti-radiation analog CMOS integrated circuits obtain the ideal effect in anti-radiation function.