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 …

Scandium-doped aluminum nitride for acoustic wave resonators, filters, and ferroelectric memory applications

L Chen, C Liu, M Li, W Song, W Wang… - ACS Applied …, 2022 - ACS Publications
Scandium-doped aluminum nitride (AlScN) has generated great research interest owing to
its unique properties. The wurtzite-structure AlScN is compatible with the complementary …

Controlling residual stress and suppression of anomalous grains in aluminum scandium nitride films grown directly on silicon

R Beaucejour, V Roebisch, A Kochhar… - Journal of …, 2022 - ieeexplore.ieee.org
Deposition of Aluminum Scandium Nitride (AlScN) films directly on Silicon at high Sc
alloying levels, with controlled stress, and free of anomalous grains (AOGs) is demonstrated …

Sub-GHz X-Cut Lithium Niobate S₀ Mode MEMS Resonators

L Colombo, A Kochhar, G Vidal-Álvarez… - Journal of …, 2022 - ieeexplore.ieee.org
This paper reports on the design, fabrication, and characterization of mode X-cut Lithium
Niobate Laterally Vibrating Resonators (LVRs) operating between 100 MHz and 1 GHz. In …

Low Loss Al0.7Sc0.3N Thin Film Acoustic Delay Lines

S Shao, Z Luo, Y Lu, A Mazzalai… - IEEE Electron Device …, 2022 - ieeexplore.ieee.org
reports novel aluminum scandium nitride (Al 0.7 Sc 0.3 N) thin film acoustic delay lines
(ADLs). Low loss ADLs are implemented on sputtered Al 0.7 Sc 0.3 N thin film using cross …

Ultrathin Pt and Mo films on Al1–xScxN: an interface investigation

Y Ding, X Hou, T Jin, Y Wang, X Lian, Y Liu… - Applied Surface …, 2023 - Elsevier
Aluminum scandium nitride (Al 1–x Sc x N) with attractive ferroelectric and piezoelectric
properties is a promising material for next-generation device applications. However, the …

Aluminum nitride thin film based reconfigurable integrated photonic devices

Z Luo, A Zhang, W Huang, S Shao… - IEEE Journal of …, 2023 - ieeexplore.ieee.org
In the past few decades, silicon photonics with complementary metal-oxide-semiconductor
(CMOS) process compatibility has been well developed and successfully applied to …

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 …

Spurious-Free S₁ Mode AlN/ScAlN-Based Lamb Wave Resonator With Trapezoidal Electrodes

T Luo, Q Xu, Z Wen, Y Qu, J Zhou, B Lin… - IEEE Electron …, 2023 - ieeexplore.ieee.org
Spurious modes (SMs) suppression and electromechanical coupling coefficient ()
improvement in Lamb wave resonators (LWRs) have always been the research hotspot. In …

Al0. 7Sc0. 3N butterfly-shaped laterally vibrating resonator with a figure-of-merit (kt2· Qm) over 146

Z Luo, S Shao, K Liu, Y Lu, A Mazzalai, C Tosi… - Applied Physics …, 2022 - pubs.aip.org
This work presents the laterally vibrating Lamb wave resonators (LVRs) based on a 30%
aluminum scandium nitride (Al 0.7 Sc 0.3 N) thin film with three interdigited transducer pairs …