Increased Rate of Multiple-Bit Upset From Neutrons at Large Angles of Incidence

Abstract

Neutron interactions with terrestrial systems produce soft errors, increasing the failure-in-time (FIT) rate of advanced CMOS circuits. These neutron-induced errors are a critical reliability problem facing advanced technologies. This paper reports the accelerated neutron testing on a 90-nm CMOS SRAM that exhibits an increased multiple-bit upset FIT rate from neutrons at large angles of incidence. The modeling of these data is used to predict the reliability of ground-based systems.