Another possible ETC failure mode can originate from single-bit soft errors caused by ionizing radiation from a variety of sources including cosmic ray neutrons, so the circuitry may need to be radiation hardened to prevent such unpredictable and potentially hazardous modes of failure.
Another possible ETC failure mode can originate from single-bit soft errors caused by ionizing radiation from a variety of sources including cosmic ray neutrons. Redundant logic circuitry is therefore necessary to prevent such unpredictable and potentially hazardous modes of failure.