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Rigorous Design and Analysis of Tunneling Field-Effect Transistor with Hetero-Gate-Dielectric and Tunneling-Boost n-Layer

Jae Hwa SEO, Jae Sung LEE, Yun Soo PARK, Jung-Hee LEE, In Man KANG

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Summary :

A gate-all-around tunneling field-effect transistor (GAA TFET) with local high-k gate-dielectric and tunneling-boost n-layer based on silicon is demonstrated by two dimensional (2D) device simulation. Application of local high-k gate-dielectric and n-layer leads to reduce the tunneling barrier width between source and intrinsic channel regions. Thus, it can boost the on-current (Ion) characteristics of TFETs. For optimal design of the proposed device, a tendency of device characteristics has been analyzed in terms of the high-k dielectric length (Lhigh-k) for the fixed n-layer length (Ln-layer). The simulation results have been analyzed in terms of on- and off-current (Ion and Ioff), subthreshold swing (SS), and RF performances.

Publication
IEICE TRANSACTIONS on Electronics Vol.E96-C No.5 pp.644-648
Publication Date
2013/05/01
Publicized
Online ISSN
1745-1353
DOI
10.1587/transele.E96.C.644
Type of Manuscript
Special Section PAPER (Special Section on Fundamentals and Applications of Advanced Semiconductor Devices)
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