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This study simulated negative-capacitance double gate FinFETs with channel lengths ranging from 25nm to 100nm using TCAD. The results show that negative capacitance significantly reduces subthreshold swing as well as drain induced barrier…

Applied Physics · Physics 2021-04-08 Jhang-Yan Ciou , Sourav De , Chien-Wei-Wang , Wallace Lin , Yao-Jen Lee , Darsen Lu

In this paper, we take a fresh look at the physics and operation of Negative Capacitance FETs, and provide unambiguous feedback to the device designers by examining NC-FETs' design space for sub-60 mV/dec Subthreshold Swing (SS).…

Applied Physics · Physics 2018-09-24 Wei Cao , Kaustav Banerjee

In this paper, an analytical predictive model of the negative capacitance (NC) effect in symmetric long channel double-gate junctionless transistor is proposed based on a charge-based model. In particular, we have investigated the effect of…

Using accurate Hybrid-Functional DFT coupled with the Non-Equilibrium Green's function (NEGF) formalism, we explore and benchmark the fundamental scaling limits of CNT-FETs against Si and 2D-material MoS$_2$ and HfS$_2$ Nanosheets,…

Mesoscale and Nanoscale Physics · Physics 2025-07-02 Aryan Afzalian

The main promise of tunnel FETs (TFETs) is to enable supply voltage ($V_{DD}$) scaling in conjunction with dimension scaling of transistors to reduce power consumption. However, reducing $V_{DD}$ and channel length ($L_{ch}$) typically…

Mesoscale and Nanoscale Physics · Physics 2016-04-08 Hesameddin Ilatikhameneh , Gerhard Klimeck , Rajib Rahman

This work presents a novel general compact model for 7nm technology node devices like FinFETs. As an extension of previous conventional compact model that based on some less accurate elements including one-dimensional Poisson equation for…

Emerging Technologies · Computer Science 2019-08-13 Qiang Huo , Zhenhua Wu , Weixing Huang , Xingsheng Wang , Geyu Tang , Jiaxin Yao , Yongpan Liu , Feng Zhang , Ling Li , Ming Liu

We report on measurements and modeling of FE HfZrO/SiO2 Ferroelectric-Dielectric (FE-DE) FETs which indicate that many of the phenomena attributed to Negative Capacitance can be explained by a delayed response of ferroelectric domain…

Mesoscale and Nanoscale Physics · Physics 2018-12-05 Borna Obradovic , Titash Rakshit , Ryan Hatcher , Jorge Kittl , Mark S. Rodder

Steep-slope $\beta$-Ga$_2$O$_3$ nano-membrane negative capacitance field-effect transistors (NC-FETs) are demonstrated with ferroelectric hafnium zirconium oxide in gate dielectric stack. Subthreshold slope less than 60 mV/dec at room…

Materials Science · Physics 2017-11-03 Mengwei Si , Lingming Yang , Hong Zhou , Peide D. Ye

Boltzmann tyranny poses a fundamental limit to lowering the energy dissipation of conventional MOS devices, a minimum increase of the gate voltage, i.e. 60 mV, is required for a 10-fold increase in drain-to-source current at 300 K. Negative…

Applied Physics · Physics 2018-04-30 Ali Saeidi , Farzan Jazaeri , Igor Stolichnov , Christian C. Enz , Adrian M. ionescu

While decreasing the oxide thickness in carbon nanotube field-effect transistors (CNFETs) improves the turn-on behavior, we demonstrate that this also requires scaling the range of the drain voltage. This scaling is needed to avoid an…

Mesoscale and Nanoscale Physics · Physics 2009-11-10 M. Radosavljevic , S. Heinze , J. Tersoff , Ph. Avouris

Negative capacitance (NC) in ferroelectrics, which stems from the imperfect screening of polarization, is considered a viable approach to lower voltage operation in the field-effect transistors (FETs) used in logic switches. In this paper,…

Mesoscale and Nanoscale Physics · Physics 2017-08-07 Kwok Ng , Steven J. Hillenius , Alexei Gruverman

In this paper we propose a modified structure of TFET incorporating ferroelectric oxide as the complementary gate dielectric operating in negative capacitance zone, called the Negative Capacitance Tunnel FET (NCTFET). The proposed device…

General Physics · Physics 2014-05-21 Nadim Chowdhury , S. M. Farhaduzzaman Azad , Quazi D. M. Khosru

In this paper, we study the vulnerability of 5nm node FinFET and nanowire (20nm gate length) and their corresponding SRAM under radiation. Ab initio tools, SRIM, PHITS, and GEANT4, are used to find the Linear Energy Transfer (LET) of…

Materials Science · Physics 2022-03-09 Johan Saltin , Adam Elwailly , Hiu Yung Wong

It is well known that conventional Field Effect Transistors (FET's) require a change in the channel potential of at least 60 mV at 300K to effect a change in the current by a factor of ten, and this minimum subthreshold slope S puts a lower…

Mesoscale and Nanoscale Physics · Physics 2007-07-16 Sayeef Salahuddin , Supriyo Datta

The study investigates the influence of negative capacitance on the transfer characteristics of vdW FETs on the heterophase of CIPS ferroelectric. Notably, a less pronounced NC resulting from the spatial distribution of the ferroelectric…

In this study, a SPICE model for negative capacitance vertical nanowire field-effect-transistor (NC VNW-FET) based on BSIM-CMG model and Landau-Khalatnikov (LK) equation was presented. Suffering from the limitation of short gate length…

Emerging Technologies · Computer Science 2020-02-11 Weixing Huang , Huilong Zhu , Kunpeng Jia , Zhenhua Wu , Xiaogen Yin , Qiang Huo , Yongkui Zhang

Using accurate dissipative DFT-NEGF atomistic-simulation techniques within the Wannier-Function formalism, we give a fresh look at the possibility of sub-10 nm scaling for high-performance CMOS applications. We show that a combination of…

Applied Physics · Physics 2021-02-05 Aryan Afzalian

Ion-Sensitive Field-Effect Transistors (ISFETs) form a wide-spread technology for sensing, thanks to their label-free detection and intrinsic CMOS compatibility. Their current sensitivity, {\Delta}ID/ID, for a given {\Delta}pH, however, is…

Instrumentation and Detectors · Physics 2019-06-27 Francesco Bellando , Ali Saeidi , Adrian M. Ionescu

The observation of room temperature sub-60 mV/dec subthreshold slope (SS) in MOSFETs with ferroelectric (FE) layers in the gate stacks or in series with the gate has attracted much attention. Recently, we modeled this effect in the…

Mesoscale and Nanoscale Physics · Physics 2018-07-27 J. A. Kittl , B. Obradovic , D. Reddy , T. Rakshit , R. M. Hatcher , M. S. Rodder

Digital In-memory computing improves energy efficiency and throughput of a data-intensive process, which incur memory thrashing and, resulting multiple same memory accesses in a von Neumann architecture. Digital in-memory computing involves…

Hardware Architecture · Computer Science 2021-08-11 Veerendra S Devaraddi , Joycee M. Mekie
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