Performance of (110) p-channel SOI-MOSFETs fabricated by deep-amorphization and solid-phase epitaxial regrowth processes
2011
The impact of local deep-amorphization (DA) and subsequent solid-phase epitaxial regrowth (SPER) are studied for the co-integration of devices with hybrid surface orientation. Thin-body p-channel transistors with 20nm thick film and HfO"2 gate insulator/metal gate along several directions on a (110) substrate were fabricated and characterized. No deterioration of transconductance or threshold voltage was induced by DA/SPER process. Device co-integration using DA/SPER process is therefore a realistic option. channel on (110) SOI film yields a 200% gain on the current for the (100) surface orientation. However, the benefit of it decreases with the channel length.
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