Dawn of nitride ferroelectric semiconductors: from materials to devices

P Wang, D Wang, S Mondal, M Hu… - Semiconductor Science …, 2023 - iopscience.iop.org
III-nitride semiconductors are promising optoelectronic and electronic materials and have
been extensively investigated in the past decades. New functionalities, such as …

Compact and wideband nanoacoustic pass-band filters for future 5G and 6G cellular radios

G Giribaldi, L Colombo, P Simeoni, M Rinaldi - nature communications, 2024 - nature.com
Over recent years, the surge in mobile communication has deepened global connectivity.
With escalating demands for faster data rates, the push for higher carrier frequencies …

Characterization of Ferroelectric Al0.7Sc0.3N Thin Film on Pt and Mo Electrodes

R Nie, S Shao, Z Luo, X Kang, T Wu - Micromachines, 2022 - mdpi.com
In the past decade, aluminum scandium nitride (AlScN) with a high Sc content has shown
ferroelectric properties, which provides a new option for CMOS-process-compatible …

Analysis of 5− 10 GHz Higher-Order Lamb Acoustic Waves in Thin-Film Scandium Aluminum Nitride

S Cho, J Guida, J Kramer, OA Barrera… - … Joint Conference of …, 2023 - ieeexplore.ieee.org
SummaryIn this work, we report a systematic analysis of acoustic waves in thin-film 30%
scandium-doped aluminum nitride (ScAlN) between 5 and 10 GHz. Higher-order Lamb …

Demonstration of 10 nm Ferroelectric Al0.7Sc0.3N-Based Capacitors for Enabling Selector-Free Memory Array

L Chen, C Liu, HK Lee, B Varghese, RWF Ip, M Li… - Materials, 2024 - mdpi.com
In this work, 10 nm scandium-doped aluminum nitride (AlScN) capacitors are demonstrated
for the construction of the selector-free memory array application. The 10 nm Al0. 7Sc0. 3N …

Editorial for special issue “Piezoelectric aluminium scandium nitride (AlScN) thin films: material development and applications in microdevices”

A Žukauskaitė - Micromachines, 2023 - mdpi.com
The enhanced piezoelectric properties of aluminum scandium nitride (Al1− xScxN or AlScN)
were discovered in 2009 by Morito Akiyama's team [1]. By introducing Sc into wurtzite AlN …

[HTML][HTML] Temperature-Dependent Ferroelectric Behaviors of AlScN-Based Ferroelectric Capacitors with a Thin HfO2 Interlayer for Improved Endurance and Leakage …

HJ Joo, SS Yoon, SY Oh, Y Lim, GH Lee, G Yoo - Electronics, 2024 - mdpi.com
The ferroelectric switching behavior of a metal–ferroelectric AlScN–HfO2 interlayer–metal
(MFIM) capacitor was investigated at variable temperatures and compared with an MFM …

Impact of Scaling Thickness on the Ferroelectric Properties of Pt/AlScN/Pt Capacitors

X Li, Y Fang, J Zhou, B Li, Z Wu, C Fang… - … on Electron Devices, 2024 - ieeexplore.ieee.org
In this work, the effects of reducing the thickness of Al Sc N films from 100 to 40 nm on the
ferroelectric properties of Pt/Al Sc N/Pt capacitors were investigated. As Al Sc N film …

Stress effect on the leakage current distribution of ferroelectric Al 0.7 Sc 0.3 N across the wafer

W Yang, L Chen, M Li, F Liu, X Liu, C Liu… - Applied Physics …, 2023 - pubs.aip.org
This study presents an investigation into the stress effect on the leakage current in
ferroelectric Al 0.7 Sc 0.3 N films by experiments and density functional theory (DFT) …

The Effect of Molybdenum Grain Characteristics on Ferroelectric Al0.7Sc0.3N Film Properties

M Li, H Lin, B Varghese, Y Zhu - 2023 IEEE International …, 2023 - ieeexplore.ieee.org
Owing to the high coercive field of ferroelectric AlScN films, ultrathin (< 10 nm) is required for
ferroelectric AlScN memory applications. High quality ultrathin film growth depends on the …