Methods of fabrication and modeling of CMUTs–A review

AE Biriukov, AM Korsunsky - Sensors and Actuators A: Physical, 2024 - Elsevier
Widespread use of capacitive micromachined ultrasound transducers (CMUTs) has
motivated the development of a variety of methods for their fabrication and modeling. The …

Dual-frequency CMUT arrays for multiband ultrasound imaging applications

M Maadi, C Ceroici, RJ Zemp - IEEE Transactions on …, 2021 - ieeexplore.ieee.org
Dual-frequency capacitive micromachined ultrasonic transducers (CMUTs) are introduced
for multiscale imaging applications, where a single array transducer can be used for both …

Equivalent electrical circuits for electroacoustic MEMS design: A review

R Liechti - Journal of Micromechanics and Microengineering, 2024 - iopscience.iop.org
At the era of powerful computers, it's tempting to employ finite element models early in the
design phase of a device. However, especially for MEMS devices, the dimensional ratios …

Lumped-parameter equivalent circuit modeling of CMUT array elements

T Merrien, A Boulmé, D Certon - IEEE Open Journal of …, 2021 - ieeexplore.ieee.org
Design and modeling are key steps in the value chain of Capacitive Micromachined
Ultrasonic Transducer (CMUT) arrays. Although CMUT array element models are very …

Squeeze film effect in surface micromachined nano ultrasonic sensor for different diaphragm displacement profiles

AG Dastidar, R Maity, RC Tiwari, D Vidojevic… - Sensors, 2023 - mdpi.com
In the present paper, we have analytically explored the small variations of the local pressure
in the trapped air film of both sides of the clamped circular capacitive micromachined …

A novelly universal theory: Toward accurately evaluating radial vibration characteristics for radially sandwiched spherical piezoelectric transducer

S Wang, S Lin - Ultrasonics, 2021 - Elsevier
With the development of ultrasonic technology, some ultrasonic processing technologies
require a wide processing range. In this paper, a radially sandwiched spherical piezoelectric …

Coupling effects of crosstalk and parasitic loss on capacitive micromachined ultrasonic transducers

Y Zhao, Z Li, J Li, L Zhao, Z Liu, D Lu, Z Li… - IEEE Sensors …, 2022 - ieeexplore.ieee.org
Capacitive micromachined ultrasonic transducers (CMUTs) have been widely utilized in
applications of biomolecule monitoring, ultrasound medical diagnosis, and ultrasound …

A mems ultra-wideband (Uwb) power sensor with a fe-co-b core planar inductor and a vibrating diaphragm capacitor

S Vejella, S Chowdhury - Sensors, 2021 - mdpi.com
The design of a microelectromechanical systems (MEMS) ultra-wideband (UWB) RMS
power sensor is presented. The sensor incorporates a microfabricated Fe-Co-B core planar …

An analytical and FEM simulation-based study of the dependence of capacitance profile on structural parameters of CMUT with and without vent

A Ghosh Dastidar, R Maity, RC Tiwari, S Dutta… - Microsystem …, 2024 - Springer
This paper presents the capacitive behaviour of a Capacitive Micromachined Ultrasound
Transducer (CMUT). A Finite Element Method (FEM)-based simulation is proposed to …

[HTML][HTML] Radiation Impedance of Rectangular CMUTs

S Khorassany, EB Dew, M Rahim Sobhani, RJ Zemp - Sensors, 2024 - mdpi.com
Recently, capacitive micromachined ultrasound transducers (CMUTs) with long rectangular
membranes have demonstrated performance advantages over conventional piezoelectric …