Related Experiment Video
Updated: Jun 16, 2026

Nanofabrication of Gate-defined GaAs/AlGaAs Lateral Quantum Dots
Published on: November 1, 2013
Simulation of characteristic variation in 16 nm gate FinFET devices due to intrinsic parameter fluctuations
Yiming Li1, Chih-Hong Hwang, Ming-Hung Han
1Institute of Communication Engineering, National Chiao-Tung University, Hsinchu, Taiwan. ymli@faculty.nctu.edu.tw
Abstract:
High-kappa/metal-gate and vertical channel transistors are well-known solutions to continue the device scaling. This work extensively explores the physics and mechanism of the intrinsic parameter fluctuations in nanoscale fin-type field-effect transistors by using an experimentally validated three-dimensional quantum-corrected device simulation. The dominance fluctuation sources in threshold voltage, gate capacitance and cutoff frequency have been found. The emerging fluctuation source, workfunction fluctuation, shows significant impacts on DC characteristics; however, its impact is reduced in AC characteristics due to the screening effect of the inversion layer. Additionally, the channel discrete dopant may enhance the electric field and therefore make the averaged cutoff frequency of fluctuated devices larger than the nominal value of cutoff frequency.
Related Concept Videos
Characteristics of MOSFET
Various vital parameters influence their functionality, which is crucial for theory and electronics applications. First, channel dimensions, precisely length, and width, are pivotal. The size of these channels affects the transistor's ability to carry current and switching speeds; shorter channels typically enable quicker...
Biasing of FET
In an N-channel JFET, the structure consists of N-type material forming the channel on a P-type substrate, with the gate...
Small-Signal Analysis of MOSFET Amplifiers
Characteristics of JFET
The core of a JFET's operation is controlling drain current by modulating the gate-source voltage. When the drain and gate voltage are set to zero, the JFET exhibits no net current flow, representing a state of equilibrium. The drain current increases linearly as the...
MOSFET: Enhancement Mode
In their basic form, enhancement-mode MOSFETs are typically non-conductive when the gate-source voltage (Vgs) is zero. This default 'off' state means no current...
Biasing of Metal-Semiconductor Junctions
In Schottky junctions, where the semiconductor is n-type, applying a positive voltage to the metal relative to the semiconductor reduces its Fermi...
