Options for Radiation Tolerant High-Performance Memory

Memory technologies were reviewed for radiation effects performance in order to determine the most cost-efficient target for a possible memory investment targeted at creating a memory component of general applicability for space use. TID and SEL trends that had indicated improvement in intrinsic performance based on scaling cannot be trusted. SEE hardening of memory arrays is prohibitive in terms of cell-level power and area requirements. Radiation-hardened cells and custom controllers are recommended for future memory developments.