Related Experiment Video
Updated: Aug 12, 2025
10:00
Gradient Echo Quantum Memory in Warm Atomic Vapor
Published on: November 11, 2013
12.9K
Toward the Speed Limit of Phase-Change Memory
Jiabin Shen1,2, Wenxiong Song1, Kun Ren3
1State Key Laboratory of Functional Materials for Informatics, Shanghai Institute of Micro-System and Information Technology, Chinese Academy of Sciences, Shanghai, 200050, P. R. China.
Advanced Materials (Deerfield Beach, Fla.)
|January 31, 2023
Summary
Elemental antimony (Sb)-based phase-change memory (PCM) exhibits superfast crystallization speeds, reaching 242 ps in 60 nm devices. This breakthrough enables dynamic random-access memory (DRAM)-like and cache-like PCM applications.
Area of Science:
- Materials Science
- Electrical Engineering
- Computer Science
Background:
- Phase-change memory (PCM) is a leading next-generation data storage technology.
- PCM programming speed has improved significantly, reaching sub-nanosecond timescales.
- Switching speed, determined by chalcogenide media recrystallization, is crucial for PCM applications.
Purpose of the Study:
- To identify materials with ultimate crystallization speeds for advanced PCM.
- To investigate the theoretical and practical limits of PCM switching speed.
Main Methods:
- Systematic analysis of phase-change materials.
- Ab initio molecular dynamics simulations.
- Experimental characterization of Sb-based PCM devices.
Main Results:
- Elemental Sb-based PCM predicted to have superfast crystallization speeds.
- Experimental crystallization speeds achieved within 360 ps.
- Record-fast crystallization speed of 242 ps demonstrated in 60 nm devices.
- Crystallization speed increases with device miniaturization.
Conclusions:
- Sb-based PCM offers ultra-fast switching capabilities.
- Miniaturization further enhances PCM speed.
- Findings pave the way for DRAM-like and cache-like PCM.
More Related Videos
Related Concept Videos
01:24Time and frequency -Domain Interpretation of Phase-lead Control
121
Phase-lead controllers are commonly used in various control systems to enhance response speed and stability. Adjusting the brightness on a television screen offers a practical example of phase-lead control. When contrast is enhanced, a phase-lead controller is employed. Mathematically, phase-lead control is identified when the first parameter is smaller than the second.
The design of phase-lead control involves the strategic placement of poles and zeros to balance steady-state error and system...
The design of phase-lead control involves the strategic placement of poles and zeros to balance steady-state error and system...
121
01:25MOS Capacitor
899
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...
899
01:22MOSFET: Enhancement Mode
427
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...
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...
427
01:30Propagation Speed of Electromagnetic Waves
3.7K
Electromagnetic waves are consistent with Ampere's law. Assuming there is no conduction current Ampere's law is given as:
3.7K
01:13Speed of a Transverse Wave
1.7K
The speed of a wave depends on the characteristics of the medium. For example, in the case of a guitar, the strings vibrate to produce the sound. The speed of the waves on the strings and the wavelength determine the frequency of the sound produced. The strings on a guitar have different thicknesses but may be made of similar material. They have different linear densities, and the linear density is defined as the mass per length.
One of the key properties of any wave is the wave speed. Light...
One of the key properties of any wave is the wave speed. Light...
1.7K
01:19Phase Changes
4.4K
Phase transitions play an important theoretical and practical role in the study of heat flow. In melting or fusion, a solid turns into a liquid; the opposite process is freezing. In evaporation, a liquid turns into a gas; the opposite process is condensation.
A substance melts or freezes at a temperature called its melting point and boils or condenses at its boiling point. These temperatures depend on pressure. High pressure favors the denser form of the substance, so typically, high pressure...
A substance melts or freezes at a temperature called its melting point and boils or condenses at its boiling point. These temperatures depend on pressure. High pressure favors the denser form of the substance, so typically, high pressure...
4.4K