相关实验视频

Updated: Jun 12, 2025

Fabrication of Schottky Diodes on Zn-polar BeMgZnO/ZnO Heterostructure Grown by Plasma-assisted Molecular Beam Epitaxy

Fabrication of Schottky Diodes on Zn-polar BeMgZnO/ZnO Heterostructure Grown by Plasma-assisted Molecular Beam Epitaxy

Published on: October 23, 2018

超低功耗的超值Hf-ZnO突触通路晶体管的增强保留特性

Danyoung Cha¹, Jeongseok Pi¹, Sungsik Lee¹

¹The Department of Electronics Engineering, Pusan National University, Busan 46241, Republic of Korea.

ACS applied materials & interfaces

|May 23, 2025

概括

这项研究介绍了一种用于神经形态系统的超低功率突触传递晶体管 (SPT). 通过优化Hf-ZnO通道和门氧化物,研究人员实现了2x10^4秒的长期记忆保留,耗电最小.

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:

神经形态系统需要高效的内存组件来实现先进的人工智能.
突触传递晶体管 (SPT) 为低功耗神经形态计算提供了一个有前途的途径.
现有的SPT在平衡编程速度,保留时间和功耗方面面临挑战.

研究的目的:

使用Hf-ZnO通道分析超低功率突触传递晶体管 (SPT) 的保留特性.
调查Al2O3/HfO2门氧化物堆中缺陷对内存功能的作用.
展示一种方法来克服编程速度和SPT中保留时间之间的权衡.

主要方法:

使用Hf-ZnO通道和Al2O3/HfO2门氧化物堆制造SPT.
在不同的编程脉冲条件下对体重更新和保持特征的实验性监测.
使用 SPT 数据模拟模拟加速器性能.

主要成果:

使用Hf-ZnO通道在下值区域运行的SPT显示出超低功耗 (90fW静电功率).
在Al2O3/HfO2门氧化物堆中的缺陷充当电子捕获状态,从而实现内存功能.
编程速度和保留时间之间存在一个权衡,更快的编程导致更短的保留时间.
重复编程和保留监控将保留时间延长到大约2 x 10^4秒.
模拟模拟加速器的模拟显示了基于SPT性能的有希望的识别率.

结论:

开发的具有Hf-ZnO通道的超低功率SPT显示了神经形态系统中长期记忆的巨大潜力.
优化门氧化物缺陷和采用重复编程策略有效地减轻了保持速度的权衡.
这些发现为更智能,更节能的神经形态硬件铺平了道路.

关键词:

无形氧化物半导体半导体保持特征的保留特征.低于值区域的地区突触装置是一种突触装置.超低功耗超低功耗超低功耗

更多相关视频

Light Enhanced Hydrofluoric Acid Passivation: A Sensitive Technique for Detecting Bulk Silicon Defects

Light Enhanced Hydrofluoric Acid Passivation: A Sensitive Technique for Detecting Bulk Silicon Defects

Published on: January 4, 2016

Electric-field Control of Electronic States in WS2 Nanodevices by Electrolyte Gating

Electric-field Control of Electronic States in WS2 Nanodevices by Electrolyte Gating

Published on: April 12, 2018

相关概念视频

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...

MOSFET: Depletion Mode

MOSFET: Depletion Mode

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...

Characteristics of MOSFET

Characteristics of MOSFET

Metal-oxide-semiconductor field-effect Transistors, or MOSFETs, play a critical role in electronic circuits. They are primarily utilized for amplifying and switching signals.
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...

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...

Biasing of FET

Biasing of FET

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...

Characteristics of JFET

Characteristics of JFET

Junction Field Effect Transistors (JFETs) exhibit specific operational characteristics based on the relationship between the drain current (id) and the drain-source voltage (Vds), along with varying gate-source voltages (Vgs).
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...