Electrical characterization of partially insulated MOSFETs with buried insulators under source/drain regions

In this article, we evaluated the structural merits of a partially insulated MOSFET (PiFET), for ultimate scaling of planar MOSFETs, through simulation and fabrication. The newly fabricated PiFET showed outstanding short channel effect (SCE) immunity and off-current characteristics over the conventional MOSFET, resulting from a self-induced halo region, self-limiting S/D shallow junction, and reduced junction area due to PiOX layer formation. Thus, the PiFET can be an attractive alternative for ultimate scaling of planar MOSFETs.