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相关概念视频

MOS Capacitor01:25

MOS Capacitor

839
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...
839
Design Example: Capacitance Multiplier Circuit01:20

Design Example: Capacitance Multiplier Circuit

828
In integrated circuit technology, a capacitance multiplier is often utilized to produce a larger capacitance value when a small physical capacitance falls short. This is achieved by a circuit that multiplies capacitance values by a factor of up to 1000, such that a 10-pF capacitor can replicate the performance of a 100-nF capacitor.
The circuit illustrated in Figure 1 below incorporates two op-amps, with the first operating as a voltage follower and the second acting as an inverting amplifier.
828
Biasing of FET01:22

Biasing of FET

310
Biasing a Junction Field Effect Transistor (JFET) is crucial for setting operational parameters and ensuring efficient functioning in electronic circuits. JFETs are characterized by using a single carrier type in N-channel or P-channel configurations, where the channel is surrounded by PN junctions. These junctions are central to the device's ability to control current flow.
In an N-channel JFET, the structure consists of N-type material forming the channel on a P-type substrate, with the...
310
Non-ohmic Devices00:51

Non-ohmic Devices

1.1K
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...
1.1K
MOSFET: Enhancement Mode01:22

MOSFET: Enhancement Mode

378
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...
378
MOSFET: Depletion Mode01:20

MOSFET: Depletion Mode

393
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...
393

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相关实验视频

Updated: Jul 19, 2025

The Effect of Anodization Parameters on the Aluminum Oxide Dielectric Layer of Thin-Film Transistors
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The Effect of Anodization Parameters on the Aluminum Oxide Dielectric Layer of Thin-Film Transistors

Published on: May 24, 2020

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设备算法对芯片上可训练的基于电容器的突触设备进行协同优化,使用IGZO TFT和以保留为中心的Tiki-Taka算法.

Jongun Won1, Jaehyeon Kang1, Sangjun Hong2

  • 1Department of Materials Science & Engineering, Inter-university Semiconductor Research Center, Research Institute of Advanced Materials, Seoul National University, Seoul, 08826, Republic of Korea.

Advanced science (Weinheim, Baden-Wurttemberg, Germany)
|August 9, 2023
PubMed
概括

使用氧化薄膜晶体管 (IGZO TFTs) 的新型6T1C突触装置使得芯片上高效的深度学习训练成为可能. 设备算法协同优化克服了非理想性,以提高准确性和记忆力.

关键词:
设备-算法协同优化在内存计算中的内存计算.,,氧化薄膜晶体管 (IGZO TFT) 是一个这是一个神经形态神经形态的神经形态.这就是Tiki-taka算法.

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In Vitro Multiparametric Cellular Analysis by Micro Organic Charge-modulated Field-effect Transistor Arrays
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Silicon Metal-oxide-semiconductor Quantum Dots for Single-electron Pumping
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Silicon Metal-oxide-semiconductor Quantum Dots for Single-electron Pumping

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相关实验视频

Last Updated: Jul 19, 2025

The Effect of Anodization Parameters on the Aluminum Oxide Dielectric Layer of Thin-Film Transistors
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In Vitro Multiparametric Cellular Analysis by Micro Organic Charge-modulated Field-effect Transistor Arrays
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Silicon Metal-oxide-semiconductor Quantum Dots for Single-electron Pumping
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科学领域:

  • 材料科学 材料科学 材料科学
  • 电气工程 电气工程
  • 计算机科学 计算机科学

背景情况:

  • 模拟内存计算突触设备对于高效的深度学习至关重要.
  • 电阻式内存设备在芯片上训练时面临挑战,原因是电阻控制和设备变化.
  • 现有的Si-CMOS和基于电容器的突触受到不够的保留时间和精度降低的影响.

研究的目的:

  • 提出一种新的6T1C突触装置,用于在深度学习中改进芯片上的训练.
  • 解决现有突触器械的局限性,包括阻力控制,设备变化和保留时间.
  • 为了证明设备-算法对现实的训练场景的协同优化的有效性.

主要方法:

  • 开发了一种新的6T1C突触装置,使用n型氧化薄膜晶体管 (IGZO TFTs) 和电容器.
  • 实现线性和对称的重量更新.
  • 设计一个高效的训练算法,以弥补设备的非理想性,如漂移的引用和保留损失.

主要成果:

  • 拟议的基于IGZO TFT的6T1C装置具有低泄漏电流,确保足够的保留时间.
  • 实现了线性和对称的重量更新,这对于准确的学习至关重要.
  • 证明了具有更高准确度的并行芯片上训练操作.
  • 验证了设备-算法共同优化的重要性,以克服剩余的非理想性.

结论:

  • 新的6T1C IGZO TFT突触设备为高效准确的芯片深度学习培训提供了一个有前途的解决方案.
  • 设备-算法协同优化对于实现内存计算硬件的全部潜力至关重要.
  • 这种方法克服了以前的突触设备技术的关键局限性,为更强大的AI硬件铺平了道路.