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相关概念视频

Metal-Semiconductor Junctions01:24

Metal-Semiconductor Junctions

347
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...
347
MOSFET: Enhancement Mode01:22

MOSFET: Enhancement Mode

328
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...
328
MOS Capacitor01:25

MOS Capacitor

771
A Metal-Oxide-Semiconductor (MOS) capacitor is a fundamental structure used extensively in semiconductor device technology, particularly in the fabrication of integrated circuits and MOSFETs (metal-oxide-semiconductor field-effect transistors). The MOS capacitor consists of three layers: a metal gate, a dielectric oxide, and a semiconductor substrate.
The metal gate is typically made from highly conductive materials such as aluminum or polysilicon. Beneath the metal gate lies a thin layer of...
771
MOSFET: Depletion Mode01:20

MOSFET: Depletion Mode

348
Depletion-mode MOSFETs represent a unique subset of MOSFET technology, functioning fundamentally differently from their enhancement-mode counterparts. Unlike enhancement MOSFETs, which require a positive gate-source voltage (Vgs) to turn on, depletion-mode MOSFETs are inherently conductive and "normally on" devices.
The primary characteristic of depletion-mode MOSFETs is their ability to conduct current between the drain and source terminals without gate bias. This inherent conductivity...
348
Semiconductors01:22

Semiconductors

692
There is variation in the electrical conductivity of materials - metals, semiconductors, and insulators that are showcased with the help of the energy band diagrams.
Metals such as copper (Cu), zinc (Zn), or lead (Pb) have low resistivity and feature conduction bands that are either not fully occupied or overlap with the valence band, making a bandgap non-existent. This allows electrons in the highest energy levels of the valence band to easily transition to the conduction band upon gaining...
692
Non-ohmic Devices00:51

Non-ohmic Devices

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In most substances, the current flow is proportional to the voltage applied to it. A simple relationship between the values of current, voltage, and resistance is known as Ohm's law. Nonohmic devices do not exhibit a linear relationship between voltage and current. One such device is the semiconducting circuit element known as a diode. A diode is a circuit device that allows current flow in only one direction.
Consider a simple circuit consisting of a battery, a diode, and a resistor. A...
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相关实验视频

Updated: Jun 27, 2025

In Situ Transmission Electron Microscopy with Biasing and Fabrication of Asymmetric Crossbars Based on Mixed-Phased a-VOx
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单层空位诱导的MXene内存用于写入-验证-免费编程.

Dongchen Tan1, Nan Sun1, Jijie Huang2

  • 1Key Laboratory for Precision and Non-traditional Machining Technology of the Ministry of Education, Dalian University of Technology, Dalian, 116024, China.

Small (Weinheim an der Bergstrasse, Germany)
|April 29, 2024
PubMed
概括
此摘要是机器生成的。

这项研究引入了使用氧化Ti3C2Tx MXene的新型非易失性记忆. 它实现了直接的0/1逻辑级编程,消除了写入验证步骤,以实现更快,更稳定的内存设备.

关键词:
这就是MXene MXene.不逐渐的开关非逐渐的开关非易失性存储器 (non-volatile memory) 是一种非易失性存储器.在空缺的职位上.写入-验证-自由

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A Fabrication and Measurement Method for a Flexible Ferroelectric Element Based on Van Der Waals Heteroepitaxy
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Fabrication of Ti3C2 MXene Microelectrode Arrays for In Vivo Neural Recording
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相关实验视频

Last Updated: Jun 27, 2025

In Situ Transmission Electron Microscopy with Biasing and Fabrication of Asymmetric Crossbars Based on Mixed-Phased a-VOx
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A Fabrication and Measurement Method for a Flexible Ferroelectric Element Based on Van Der Waals Heteroepitaxy
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Fabrication of Ti3C2 MXene Microelectrode Arrays for In Vivo Neural Recording
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科学领域:

  • 材料科学 材料科学 材料科学
  • 固态电子 固态电子
  • 纳米技术 纳米技术

背景情况:

  • 互补金属氧化物半导体 (CMOS) 技术是现代非挥发性固态内存的基础.
  • 传统的内存组件由于积累的信号而面临数据扭曲,需要写入验证操作.
  • 这限制了当前内存技术中的编程速度和效率.

研究的目的:

  • 开发一种具有直接重编程能力的非易失性内存设备.
  • 克服传统记忆细胞中累积存储效应的局限性.
  • 为了提高内存操作的速度和可靠性.

主要方法:

  • 使用单层空位诱导的氧化Ti3C2Tx MXene制造一个不对称的垂直结构.
  • 使用高效的载体捕获和释放机制来进行非渐进的电阻切换.
  • 记忆设备性能的表征,包括切换时间,比率,耐久性,保留和稳定性.

主要成果:

  • 证明一个非累积的阻力效应,使得直接0/1逻辑水平的实现.
  • 实现了 100 ns 的短写入/删除时间.
  • 呈现出很大的切换比率 (≈3 × 10^4),长周期性耐力 (>10^4周期) 和延长的保留时间 (>4 × 10^6秒).
  • 在 >10^4 连续写作操作中表现出高电阻稳定性.

结论:

  • 开发的Ti3C2Tx MXene内存为传统技术提供了一个有希望的替代方案.
  • 消除写入验证操作导致更快的编程速度和精简的算法.
  • 这一进步为下一代具有卓越性能的电阻记忆铺平了道路.