3D simulation of single-event-transient effects in symmetrical dual-material double-gate MOSFETs

Dual-material double-gate (DMDG) structure is a promising structure for future ultra-scaled devices thanks to its capability to reduce short channel effects (SCEs) and hot-carrier induced effects (HCEs). This is due to a step in the surface-potential profile which screens the source side of the channel from drain-potential variations and reduces the drain electric field. In this work, we investigate the DMDG sensitivity to single-event transients. The impact of dual gate material workfunctions on the bipolar gain is particularly addressed. We show that DMDG is naturally less radiation immune than the usual single-material DG (SMDG) devices. (C) 2015 Elsevier Ltd. All rights reserved.

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