相关实验视频

Updated: Jul 10, 2025

Plasma-assisted Molecular Beam Epitaxy of N-polar InAlN-barrier High-electron-mobility Transistors

Plasma-assisted Molecular Beam Epitaxy of N-polar InAlN-barrier High-electron-mobility Transistors

Published on: November 24, 2016

一个高性能的InGaAs垂直电子孔双层道场效应晶体管,带有P+-Pocket和InAlAs块

Hu Liu¹, Peifeng Li¹, Xiaoyu Zhou¹

¹School of Electronic and Information Engineering, Lanzhou Jiaotong University, Lanzhou 730070, China.

|November 25, 2023

概括

一个新的InGaAs垂直电子孔双层道场效应晶体管 (EHBTFET) 具有P+口袋和AlGaAs块显著提高了性能. 这种设计增强了状态上的电流,并减少了状态外的电流,提高了设备的效率.

科学领域:

半导体设备物理学半导体设备物理
材料科学是一种材料科学.

背景情况:

传统的InGaAs垂直电子孔双层道场效应晶体管 (EHBTFET) 在芯片密度和设备性能方面面临挑战.
优化制造工艺的无毒的InGaAs通道和管理道电流对于先进的晶体管至关重要.

研究的目的:

引入和系统地研究一个新的InGaAs垂直电子孔双层道场效应晶体管 (VPB-EHBTFET),其中包含一个P+口袋和一个InAlAs块.
通过优化VPB-EHBTFET的关键结构参数来提高芯片密度和设备性能.

主要方法:

技术计算机辅助设计 (TCAD) 模拟用于系统的设备研究.
对P+口袋宽度/兴奋剂和InAlAs块长度/宽度进行了优化.

主要成果:

该VPB-EHBTFET实现了超低的状态下电流1.83 × 10^-19 A/μm和高的状态下电流1.04 × 10^-4 A/μm.
获得了平均5.5mV/dec的下值波动,与传统设备相比减少了81.8%.
该设备显示了显著减少的状态下电流 (数量级的三次下降) 和增加的状态下电流 (六倍以上).

结论:

拟议的VPB-EHBTFET设计有效地抑制了点道,并促进了孔反向层的形成.
优化的设备表现出卓越的性能指标,包括减少状态外电流,增强状态内电流和改进的下值摆动.
这些进步显著提高了EBHTFET在高性能集成电路中的实际应用.

关键词:

在GaAs/InAlAs中使用.在P+-口袋.线路道的道建设道场效应晶体管晶体管.

更多相关视频

Nanofabrication of Gate-defined GaAs/AlGaAs Lateral Quantum Dots

Nanofabrication of Gate-defined GaAs/AlGaAs Lateral Quantum Dots

Published on: November 1, 2013

Scalable Quantum Integrated Circuits on Superconducting Two-Dimensional Electron Gas Platform

Scalable Quantum Integrated Circuits on Superconducting Two-Dimensional Electron Gas Platform

Published on: August 2, 2019

相关概念视频

Field Effect Transistor

Field Effect Transistor

Field-effect transistors (FETs) are integral to electronic circuits and distinguished by their three-terminal setup: the gate, drain, and source. These transistors operate as unipolar devices, which utilize either electrons or holes as charge carriers, in contrast to bipolar transistors, which use both types of carriers. The primary function of the FET is to modulate the flow of these carriers from the source to the drain through a channel. The voltage difference between the gate and source...

MOSFET: Enhancement Mode

MOSFET: Enhancement Mode

Enhancement-mode MOSFETs are pivotal components in electronics, distinguished by their capacity to act as highly efficient switches. They are part of the larger family of metal-oxide Semiconductor Field-Effect Transistors (MOSFETs). They are available in two types: p-channel and n-channel, each tailored to specific polarity operations.
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...

Metal-Semiconductor Junctions

Metal-Semiconductor Junctions

The contact of metal and semiconductor can lead to the formation of a junction with either Schottky or Ohmic behavior.
Schottky Barriers
Schottky barriers arise when a metal with a work function (Φm) contacts a semiconductor with a different work function (Φs). Initially, electrons transfer until the Fermi levels of the metal and semiconductor align at equilibrium. For instance, if Φm > Φs, the semiconductor Fermi level is higher than the metal's before contact. The...

Schottky Barrier Diode

Schottky Barrier Diode

Schottky barrier diodes are specialized semiconductor devices characterized by their unique construction. This construction involves combining a metal layer with a moderately doped n-type semiconductor material. This combination leads to the formation of a Schottky barrier, a pivotal element that defines the diode's operational characteristics. The core functionality of Schottky barrier diodes is their capacity to allow current to flow in only one direction due to their distinctive...

Biasing of P-N Junction

Biasing of P-N Junction

The operation of a p-n junction diode involves various biasing conditions, including forward bias, reverse bias, and equilibrium.
In equilibrium, no external voltage is applied across the p-n junction. The depletion region is formed at the junction interface due to the diffusion of carriers, which leaves behind charged dopants, acceptors on the p-side, and donors on the n-side. These immobile charges create an electric field that prevents further diffusion of carriers. The related energy band...

P-N junction

P-N junction

A p-n junction is formed when p-type and n-type semiconductor materials are joined together. At the interface of the p-n junction, holes from the p-side and electrons from the n-side begin to diffuse into the opposite sides due to the concentration gradient. This diffusion of carriers leads to a region around the junction where there are no free charge carriers, known as the depletion region. The charge density within the depletion region for the n-side and p-side can be described by the...