A review: Aluminum nitride MEMS contour-mode resonator

Y Hou, M Zhang, G Han, C Si, Y Zhao… - Journal of …, 2016 - iopscience.iop.org
Over the past several decades, the technology of micro-electromechanical system (MEMS)
has advanced. A clear need of miniaturization and integration of electronics components …

Anchor losses in AlN contour mode resonators

J Segovia-Fernandez, M Cremonesi… - Journal of …, 2014 - ieeexplore.ieee.org
In this paper, we analyze possible sources of dissipation in aluminium nitride (AlN) contour
mode resonators for three different resonance frequency devices (fr)(220 MHz, 370 MHz …

Anchor loss reduction in AlN Lamb wave resonators using phononic crystal strip tethers

CM Lin, JC Hsu, DG Senesky… - 2014 IEEE International …, 2014 - ieeexplore.ieee.org
Formation of allowed and stopped frequency bands of elastic wave propagation in the
periodic media, also known as phononic crystal (PnC), recently has attracted great attention …

Extending the Linearity of AlScN Contour-Mode Resonators Through Acoustic Metamaterials-Based Reflectors

X Zhao, O Kaya, M Pirro, P Simeoni… - IEEE Transactions …, 2023 - ieeexplore.ieee.org
This work describes the implementation of acoustic metamaterials (AMs) made of a forest of
rods at the sides of a suspended aluminum scandium nitride (AlScN) contour-mode …

Quality factor dependence on the inactive regions in AlN contour-mode resonators

C Cassella, N Singh, BW Soon… - Journal of …, 2015 - ieeexplore.ieee.org
This paper investigates the dependence of the quality factor (Q) of AlN contour mode
resonators (CMRs) on the characteristics of the inactive regions located between the main …

Optimization of inactive regions of lithium niobate shear mode resonator for quality factor enhancement

M Faizan, LG Villanueva - Journal of Microelectromechanical …, 2021 - ieeexplore.ieee.org
This work presents the development of a novel process flow for the fabrication of Lithium
niobate Lamb wave resonator that allows full control of the shape and size of the released …

Anchor loss reduction of lamb wave resonator by pillar-based phononic crystal

Y Tong, T Han - Micromachines, 2021 - mdpi.com
Energy leakage via anchors in substrate plates impairs the quality factor (Q) in
microelectromechanical system (MEMS) resonators. Most phononic crystals (PnCs) require …

Quality factor enhancement of piezoelectric MEMS resonator using a small cross-section connection phononic crystal

L Li, C Zhu, H Liu, Y Li, Q Wang, K Su - Sensors, 2022 - mdpi.com
Anchor loss is usually the most significant energy loss factor in Micro-Electro-Mechanical
Systems (MEMS) resonators, which seriously hinders the application of MEMS resonators in …

Uncooled infrared detector based on an aluminum nitride piezoelectric fishnet metasurface

Y Hui, S Kang, Z Qian, M Rinaldi - Journal of …, 2021 - ieeexplore.ieee.org
This article reports on the first demonstration of a high resolution (~ 1.9 nW/Hz 1/2 measured
in 200 Hz bandwidth) and fast (~ 5.3 ms) uncooled Infrared (IR) detector based on a high …

A study on the effects of release area on the quality factor of contour-mode resonators by laser doppler vibrometry

B Gibson, K Qalandar, C Cassella… - IEEE transactions on …, 2017 - ieeexplore.ieee.org
Through the use of a laser Doppler vibrometer, it is shown that a 31% variation in quality
factor can occur due to the effect of undercutting of the device layers outside of the anchors …