“…Unfortunately, as briefly mentioned in Section III, charge deposited in the body region (for example, by a particle strike to the gate region) can trigger a bipolar mechanism that limits the SEU hardness of SOI circuits [64], [65]. Body ties are sometimes used commercially to reduce floating-body effects under dc operation, and careful attention to body tie design is crucial to maintaining good SEU performance [64], [95], [96]. Even in body-tied SOI designs, manufacturers have found it necessary to incorporate other hardening methods for applications where very high upset thresholds are desired [93], [97], [98].…”