Performance analysis of tapered gate in PD/SOI CMOS technology
2002
‘Tapered gate’ is a device sizing methodology to improve the performance of critical paths in stacked circuit configurations. This paper presents a detailed study of the performance leverage of tapered gate in a partially depleted silicon-on-insulator (PD/SOI) technology. It is shown that the reduced junction capacitance in a PD/SOI device renders the series resistance reduction of the lower transistors in the stack more effective. The effects are also shown to be more pronounced for low-V T cases. The study demonstrates that tapered gate remains a viable device sizing technique/methodology for improving performance in a PD/SOI technology.
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