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Characteristics of Recessed-Gate TFETs With Line Tunneling
- Source :
- IEEE Transactions on Electron Devices. 65:769-775
- Publication Year :
- 2018
- Publisher :
- Institute of Electrical and Electronics Engineers (IEEE), 2018.
-
Abstract
- In this paper, we propose a recessed-gate tunneling field-effect transistor (TFET) to improve the on current of TFETs by increasing the tunnel area with line tunneling. We investigate the effects of the recessed-body thickness and the doping level on the device performance. For optimal device structures, our proposed n-TFET reaches $1.44 \times 10^{-6}$ A/ $\mu \text{m}$ of on current and $3.22 \times 10^{9}$ ON/ OFF current ratio. A minimum subthreshold swing SS $_{{\textsf {min}}} = 28.3$ mV/dec and an average swing SS $_{{\textsf {avg}}} = 59.8$ mV/dec over seven orders of drain current are achieved. In addition, complementary TFET inverters show good noise margins of $\textsf {NM}_{H} = 65$ mV (38.5 % $V_{{\textsf {DD}}}$ ) and NM $_{L} = 77$ mV (32.5 % $V_{{\textsf {DD}}}$ ) and also a high voltage gain even at $V_{{\textsf {DD}}} = 0.2$ V.
- Subjects :
- 010302 applied physics
Physics
Transistor
Doping
02 engineering and technology
021001 nanoscience & nanotechnology
01 natural sciences
Electronic, Optical and Magnetic Materials
law.invention
law
Subthreshold swing
0103 physical sciences
MOSFET
Electrical and Electronic Engineering
Atomic physics
0210 nano-technology
Drain current
Quantum tunnelling
Line (formation)
Subjects
Details
- ISSN :
- 15579646 and 00189383
- Volume :
- 65
- Database :
- OpenAIRE
- Journal :
- IEEE Transactions on Electron Devices
- Accession number :
- edsair.doi...........31ab1fd0f1d6e3841b808757a3af2d70