Abstract
This work presents an efficient hybrid simulation approach, developed for accurate characterization of single-event transients (SETs) in combinational logic. Using this approach, we show that charges as small as 3.5fC can introduce transients in commercial 90nm CMOS technology, hence increasing the likelihood of SET-induced soft errors. SET pulse-widths as large as 942ps are predicted at an LET (Linear Energy Transfer) of 60MeV-cm2/mg. Process-corner variations are shown to modulate SET pulse-widths by up-to 75%. The results suggest that selection of mitigation techniques for SET radiation-hardened circuits cannot exclusively rely on baseline process analyses, as they might grossly underestimate the true SET risk to the design.
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