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半导体学报 2005
Elevated Source/Drain Engineering by Novel Technology for Fully-Depleted SOI CMOS Devices and Circuits
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Abstract:
0.35μm thin-film fully-depleted SOI CMOS devices with elevated source/drain structure are fabricated by a novel technology.Key process technologies are demonstrated.The devices have quasi-ideal subthreshold properties;the subthreshold slope of nMOSFETs is 65mV/decade,while that of pMOSFETs is 69mV/decade.The saturation current of 1.2μm nMOSFETs is increased by 32% with elevated source/drain structure,and that of 1.2μm pMOSFETs is increased by 24%.The per stage propagation delay of 101-stage fully-depleted SOI CMOS ring oscillator is 75ps with 3V supply voltage.