A review of eigenmode and frequency control in piezoelectric MEMS resonators

Z Liu, F Ayazi - IEEE Transactions on Ultrasonics …, 2023‏ - ieeexplore.ieee.org
Piezoelectric microelectromechanical systems (MEMS) resonators possess favorable
properties, such as strong electromechanical coupling, high, and polarized linear …

MEMS resonators for frequency reference and timing applications

G Wu, J Xu, EJ Ng, W Chen - Journal of …, 2020‏ - ieeexplore.ieee.org
An overview of microelectromechanical systems (MEMS) resonators for frequency reference
and timing applications is presented. The progress made in the past few decades in design …

Temperature dependence of the elastic constants of doped silicon

EJ Ng, VA Hong, Y Yang, CH Ahn… - Journal of …, 2014‏ - ieeexplore.ieee.org
Resonators fabricated in heavily doped silicon have been noted to have a reduced
frequency-temperature dependence compared with lightly doped silicon. The resonant …

Concepts and key technologies of microelectromechanical systems resonators

T Feng, Q Yuan, D Yu, B Wu, H Wang - Micromachines, 2022‏ - mdpi.com
In this paper, the basic concepts of the equivalent model, vibration modes, and conduction
mechanisms of MEMS resonators are described. By reviewing the existing representative …

Accurate modeling of quality factor behavior of complex silicon MEMS resonators

S Ghaffari, EJ Ng, CH Ahn, Y Yang… - Journal of …, 2014‏ - ieeexplore.ieee.org
The quality factor of a resonator represents the decay of vibrational energy over time, and is
directly related to the frequency response and other key parameters that determine …

A temperature-stable and low impedance piezoelectric MEMS resonator for drop-in replacement of quartz crystals

W Chen, W Jia, Y **ao, Z Feng… - IEEE Electron Device …, 2021‏ - ieeexplore.ieee.org
In this letter, we report a highly temperature-stable and low impedance scandium doped
aluminum nitride (Sc x AI 1-x N,%) on silicon piezoelectric microelectromechanical system …

4H-silicon carbide as an acoustic material for MEMS

Y Long, Z Liu, F Ayazi - IEEE Transactions on Ultrasonics …, 2023‏ - ieeexplore.ieee.org
This article discusses the potential of 4H-silicon carbide (SiC) as a superior acoustic
material for microelectromechanical systems (MEMS), particularly for high-performance …

Low-power dual mode MEMS resonators with PPB stability over temperature

LC Ortiz, HK Kwon, J Rodriguez, Y Chen… - Journal of …, 2020‏ - ieeexplore.ieee.org
We demonstrate two novel dual-mode ovenized MEMS resonators, each with an in-chip
device layer micro-oven that utilizes less than 30mW for resonator temperature control over …

Temperature compensated bulk-mode capacitive MEMS resonators with±16 ppm temperature stability over industrial temperature ranges

J Han, Y **ao, W Chen, W Jia, K Zhu… - Journal of …, 2022‏ - ieeexplore.ieee.org
This letter reports temperature compensated single crystal silicon (SCS) bulk-mode
capacitive microelectromechanical system (MEMS) resonators with high temperature …

[HTML][HTML] Q-enhancement of piezoelectric micro-oven-controlled MEMS resonators using honeycomb lattice phononic crystals

Y **ao, K Zhu, J Han, S Liu, G Wu - Chip, 2024‏ - Elsevier
In this article, a two-dimensional (2D) honeycomb lattice phononic crystal (PnC) based micro-
oven with large bandgap is introduced to be integrated with piezoelectric …