This article investigates the Zero-Temperature-Coefficient (ZTC) bias point
and its associated performance metrics of a High-k Metal Gate (HKMG)
DG-MOSFET in nanoscale. The ZTC bias point is defined as the point at which
the device parameters are independent of temperature. The discussion includes
sub threshold slope (SS), drain induced barrier lowering (DIBL), on-off
current ratio (Ion/Ioff), transconductance (gm), output conductance (gd) and
intrinsic gain (AV). From the results, it is confirmed that there are two
different ZTC bias points, one for IDS (ZTCIDS) and the other for gm (ZTCgm).
The points are obtained as: ZTCIDS=0.552 V and ZTCgm =0.410 V, which will
open important opportunities in analog circuit design for wide range of
temperature applications.
We propose periodic shells with helical slit to overcome the lacuna in periodic C scatterers, where the first Bragg band is considerably reduced on increasing width of the slit. The key discovery of this research indicates that, by changing the upright slit of the C scatterers to helical
slits, larger insertion loss (IL) is achieved around the first Bragg band without compromising the local resonance band. Comparing the performance of periodic shells without slit or cylindrical scatterers, it is found that IL becomes larger at first Bragg band. The pitch, thickness of the
shell and width of helical slit can be altered to adjust the resonance of the proposed shells. On decreasing the pitch or increasing the slit width, the resonance band shifts toward high frequencies without much alteration in acoustic attenuation of bandwidth. Additionally, below threshold
pitch, the said peak merges with first Bragg band and broadens with prominent IL. The calculated band structure authenticates the bandwidth of the first Bragg band, and the additional sharp peak in IL can be attributed to local resonance of the periodic scatterers.
scite is a Brooklyn-based organization that helps researchers better discover and understand research articles through Smart Citations–citations that display the context of the citation and describe whether the article provides supporting or contrasting evidence. scite is used by students and researchers from around the world and is funded in part by the National Science Foundation and the National Institute on Drug Abuse of the National Institutes of Health.