Abstract
Dielectric Restrained Triple Metal Gate All Around (TG GAA)MOSFET is investigated as a bio-sensor to nail its applicability in biomedical field for DNA molecule and neutral species detection in particular proteins (Biotin & Streptavidin). In this paper nanoparticle with different bio molecular concentrations and different permittivity have been inserted in the cavity inside the oxide layer. The mutation in the drain current (Ids)and the threshold voltage (vth)is then studied in order to assimilate the sensitivity of the MOSFET. The performance of Triple Metal Gate All Around (TG GAA)MOSFET has been compared with that of Dual Metal Gate All Around (DG GAA)MOSFET and Single Metal Gate All Around (SG GAA)MOSFET. Nanogap Embedded TGGAA MOSFET is advantageous from the integration point of view due to the compatibility with CMOS process of the forthcoming silicon based Lab on Chip Systems as well as increased sensitivity.
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