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This study presents a new buried-gate vertical MOSFET (BGVMOS) with suppressed overlap capacitance and improved electrical characteristics due to its modified gate structure. According to the TCAD simulations, our proposed BGVMOS structure can gain reduced parasitic capacitances (27.11% Cgd and 37.53% Cgs at VDs = 1.0 V), improved drain saturation current, and free kink effect, in comparison to a...
In this paper, novel FinFET device structures with its bodies been connected together have been for the first time proposed by three-dimensional (3-D) simulation. The short-channel characteristics of threshold voltage (VTH), drain induced barrier lowering (DIBL), and on-off ratio current performance have been examined and explained in this paper. Also, the novel structures show the desired characteristic...
This paper investigates the device behaviours of a pseudo tri-gate ultra-thin-channel vertical MOSFET with source/drain tie. For comparison two transistors are designed. According to the 2D simulation, our proposed structure can effectively enhance the drain current and the thermal stability, mainly due to the ultrathin channel (Tsi = 10 nm). The fabricated device have very low subthreshold swing...
A non-classical device structure namely self-aligned quasi-silicon-on-insulator (SOI) metal-oxide semiconductor (MOS) field-effect transistor with pi-shaped semiconductor conductive layer (SA-piFET) is presented, seeking to improve the performance and upgrade the reliability of the SOI-based devices. Designed to equip with a SA single crystal silicon channel layer, plus a natural source/drain (S/D)...
This work aims to examine and analyze carefully the effects of block oxide length (LBO) in a 40 nm multi-substrate-contact field-effect transistor (MSCFET). In addition, the proposed structure is based on the self-aligned (SA) gate-to-body technique. In the MSCFET design the two key parameters are the length and the height of the block oxide which are so sensitive to the short-channel effects (SCEs)...
The paper presents a non-classical architecture called the bottom gate MOSFET with source/drain tie (S/D-tied BG) to improve device reliability. S/D-tied BG MOSFET not only effectively reduce the effects of self-heating but also slightly suppress the short-channel effects.
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