过渡金属二甲基基因基封闭层对相变异构内存性能的影响
Tae Ho Kim1, Seung Woo Park1, Ho Jin Lee1
1School of Electrical Engineering, Korea University, Seoul, Seongbuk-gu, 02841, South Korea.
Small (Weinheim an der Bergstrasse, Germany)
|July 24, 2023
概括
这项研究使用过渡金属二甲基化物 (TMD) 增强相变异构 (PCH) 记忆. 像NiTe2和MoTe2这样的新型TMD显著降低了功耗,并提高了非挥发性内存应用的耐用性.
科学领域:
- 材料科学 材料科学 材料科学
- 电气工程 电气工程
- 固态物理 固态物理
背景情况:
- 阶段变换随机访问存储器 (PCH) 提供了有前途的非易失性存储器解决方案.
- 在PCH设备中的耐用性问题是由于相变作业期间的原子扩散引起的.
- 过渡金属二甲基化物 (TMDs) 被探索为封闭材料 (CMs) 以减轻这些缺陷.
研究的目的:
- 研究使用各种TMD作为封闭材料 (CM) 的相变异构 (PCH) 装置的性能.
- 分析不同TMD (NiTe2,MoTe2,TiTe2) 如何影响PCH设备特性,重点关注功耗和耐用性.
- 了解TMD材料特性与PCH设备性能之间的关系.
主要方法:
- 使用TiTe2,NiTe2和MoTe2作为封闭材料 (CM) 层制造PCH装置.
- 设备性能的表征,包括RESET电流和循环耐久性.
- 对材料属性的分析,如TMD的凝聚能和电导率等.
主要成果:
- 与基于TiTe2的设备相比,基于NiTe2的PCH设备实现了38%较低的RESET电流 (1.4 mA),表明功率较低的操作.
- 基于MoTe2的PCH装置表现出超过10^7周期的循环耐力,比基于TiTe2的装置提高了五倍.
- 性能变化与TMD CM层的凝聚能和电导率差异相关.
结论:
- 不同的TMD表现出不同的材料特性,这显著影响PCH设备性能.
- NiTe2和MoTe2提供了通过降低运行功率和提高设备寿命来增强PCH内存的途径.
- 这项研究提供了通过战略CM选择优化PCH内存可靠性和性能的见解.
更多相关视频
08:12Ohmic Contact Fabrication Using a Focused-ion Beam Technique and Electrical Characterization for Layer Semiconductor Nanostructures
Published on: December 5, 2015
12.4K
08:50Preparation of Large-area Vertical 2D Crystal Hetero-structures Through the Sulfurization of Transition Metal Films for Device Fabrication
Published on: November 28, 2017
9.2K
相关概念视频
Metal-Semiconductor Junctions
390
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 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...
390
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...
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
Biasing of Metal-Semiconductor Junctions
283
Biasing metal-semiconductor junctions involves applying a voltage across the junction. Specifically, the metal is connected to a voltage source, while the semiconductor is grounded. This technique is essential for controlling the direction and magnitude of current flow in electronic devices, including diodes, transistors, and photovoltaic cells.
In Schottky junctions, where the semiconductor is n-type, applying a positive voltage to the metal relative to the semiconductor reduces its Fermi...
In Schottky junctions, where the semiconductor is n-type, applying a positive voltage to the metal relative to the semiconductor reduces its Fermi...
283
