Abstract
This work proposes a planar fully depleted “folded” technology integrated on bulk substrate as an innovative solution for upcoming low power nodes to enhance drive current on narrow devices. We report a detailed fabrication method, combining advanced selective epitaxy faceting and SON (Silicon-On-Nothing) process, to provide ultra thin body and buried oxide (UTB 2) devices with improved drive current I on for a given designed footprint W design when scaling the device width . We compare the fabrication and electrical behavior between 〈1 1 0〉 channel, i.e. 0°-rotated wafer, and 〈1 0 0〉 channel, i.e. 45°-rotated wafer, for the same (1 0 0) surface orientation.
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