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相关概念视频

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
Field Effect Transistor01:29

Field Effect Transistor

399
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...
399
Capacitors01:15

Capacitors

430
Capacitors play a crucial role in car radios, where they filter and store frequencies to ensure clear signal reception. Essentially serving as energy storage devices, capacitors store energy within their electric field and are composed of two parallel conducting plates separated by a dielectric.
When a voltage source is connected to a capacitor, positive and negative charges accumulate on the opposite plates. This accumulation generates a potential difference that equals the product of the...
430
Capacitors and Capacitance01:18

Capacitors and Capacitance

7.6K
A device consisting of two electrical conductors that are separated by a distance and used to store electrical charges is called a capacitor. The space between the conductors is either a vacuum or an insulating material, called a dielectric. Capacitors have many applications, ranging from filtering static from radio reception to energy storage in heart defibrillators.
When the conductors are two identical parallel plates, it is called a parallel plate capacitor. When battery terminals are...
7.6K
Energy Stored in a Capacitor01:12

Energy Stored in a Capacitor

3.6K
When an archer pulls the string in a bow, he saves the work done in the form of elastic potential energy. When he releases the string, the potential energy is released as kinetic energy of the arrow. A capacitor works on the same principle in which the work done is saved as electric potential energy. The potential energy (UC) could be calculated by measuring the work done (W) to charge the capacitor.
3.6K
Energy Stored in Capacitors01:10

Energy Stored in Capacitors

485
A parallel plate capacitor, when connected to a battery, develops a potential difference across its plates. This potential difference is key to the operation of the capacitor, as it determines how much electrical energy the capacitor can store.
By integrating the equation that relates voltage and current in a capacitor, one can derive an equation for the voltage across the capacitor at any given time. This equation is crucial in understanding and predicting the behavior of capacitors in...
485

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相关实验视频

Updated: Jun 28, 2025

A Fabrication and Measurement Method for a Flexible Ferroelectric Element Based on Van Der Waals Heteroepitaxy
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铁电电容器和场效应晶体管作为机器学习工作负载的内存计算元件.

Eunseon Yu1, Gaurav Kumar K1, Utkarsh Saxena1

  • 1School of Electrical and Computer Engineering, Purdue University, West Lafayette, IN, 47907, USA.

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PubMed
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此摘要是机器生成的。

铁电电容器和晶体管显示出内存计算加速机器学习的前景. 一个新的设计提高了效率和准确性,克服了以前计算的局限性.

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科学领域:

  • 材料科学与工程 材料科学与工程
  • 计算机工程 计算机工程
  • 人工智能的人工智能

背景情况:

  • 铁电材料正在为新的计算范式进行探索.
  • 内存计算 (IMC) 提供了加速机器学习 (ML) 工作负载的潜力.
  • 现有的铁电器件在工作电压,缩放和计算精度方面面临挑战.

研究的目的:

  • 评估铁电电容器 (FeCaps) 和铁电场效应晶体管 (FeFET) 作为IMC元件的可行性.
  • 调查设备制造,并提出系统-算法共同设计以提高性能.
  • 解决电容比率的局限性,提高IMC的计算精度.

主要方法:

  • 制造了一种具有接口层 (IL) 和氧化 (HZO) 的新型FeCap设备.
  • 将FeCaps和FeFET集成到IMC应用的横杆阵列中.
  • 开发一种系统-算法联合设计方法,以减轻计算错误.
  • 为FeFETs实施基于电荷的传感系统.

主要成果:

  • 新的FeCap设计降低了工作电压,增强了HZO缩放,并改善了铁电和保留.
  • 交叉条阵列中的FeCaps和FeFET证明了没有选择器的操作,提高了能源效率和面积利用率.
  • 共同设计方法减轻了乘积计算 (MAC) 的错误,在CIFAR-10分类中达到81.7%的准确性.
  • FeFETs的性能优于FeCaps,基于电荷的传感方案减少了电力消耗的数量级.

结论:

  • 铁电设备,特别是FeFET,可用于高性能,节能的内存计算.
  • 系统-算法共同设计对于克服设备限制和在ML任务中实现高精度至关重要.
  • 拟议的基于电荷的传感方案为IMC应用提供了显著的节能.