32 Element Piezoelectric Micromachined Ultrasound Transducer (PMUT) Phased Array for Neuromodulation

Tipsawat, Pannawit; Ilham, Sheikh Jawad; Yang, Jihyun; Kashani, Zeinab; Kiani, Mehdi; Trolier-McKinstry, Susan

doi:10.1109/ojuffc.2022.3196823

Cited by 7 publications

(2 citation statements)

References 43 publications

(34 reference statements)

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“…[20][21][22][23][24] In the medical field, they are used in surgical instruments and ultrasound machines for medical imaging. [25][26][27][28][29][30] Piezoelectric materials can be classified into three general categories, namely ceramics, bulk piezoelectric polymers, and composites. 31,32 Ceramics are the most widely used owing to their exceptionally high piezoelectric coefficients (e.g.…”

Section: Introductionmentioning

confidence: 99%

“…Piezoelectric materials are also used for energy harvesting, where they are capable of converting mechanical energy from vibrations or movements into electrical energy, and in devices such as self‐powered sensors and wearable devices 20–24 . In the medical field, they are used in surgical instruments and ultrasound machines for medical imaging 25–30 …”

Section: Introductionmentioning

confidence: 99%

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Piezoelectric approaches to organic polymeric materials

Ali,

Tigno,

Caldona

2024

Polymer International

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Piezoelectricity refers to the ability of certain materials to generate electric charges when subjected to mechanical stress or strain, and vice versa. This phenomenon has been widely studied in inorganic materials, such as quartz and ceramics, and has found numerous applications in sensing, actuation, and energy harvesting. There has been a growing interest in piezoelectricity for polymeric materials that are lightweight, flexible, and highly processable for a wide range of applications, including sensors for environmental and biomedical monitoring, energy conversion from mechanical vibrations, and actuation in soft robotics. Note that the characterization of the piezoelectric tendency of polymeric materials tends to be a complex and challenging process, as the effect is often weak and dependent upon various factors including material structure, processing conditions, and measurement setup. While many past and current review articles have covered theories and principles associated with piezoelectric polymers to some extent, detailed information on the corresponding experimental techniques used to measure their piezoelectric properties remains limited. This mini‐review paper aims to consolidate and summarize various approaches, including quasi‐static methods, optical interferometry, dielectric spectroscopy, and piezoelectric force microscopy, and provide insights into the principles, advantages, limitations, and challenges associated with these techniques.This article is protected by copyright. All rights reserved.

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Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Piezoelectric approaches to organic polymeric materials

Ali,

Tigno,

Caldona

2024

Polymer International

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A piezoelectric micromachined ultrasound transducer combined with recording electrodes for acute brain preparations in vitro

Furukawa,

Yoshikawa,

Murakami

et al. 2024

Journal of Neuroscience Methods

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Thin-film PMUTs: a review of over 40 years of research

Roy

Lee

2023

Microsyst Nanoeng

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Thin-film PMUTs have been important research topics among microultrasound experts, and a concise review on their research progress is reported herein. Through rigorous surveying, scrutinization, and perception, it has been determined that the work in this field began nearly 44 years ago with the primitive development of functional piezoelectric thin-film materials. To date, there are three major companies commercializing thin-film PMUTs on a bulk scale. This commercialization illustrates the extensive contributions made by more than 70 different centers, research institutes, and agencies across 4 different continents regarding the vast development of these devices’ design, manufacturing, and function. This review covers these important contributions in a short yet comprehensive manner; in particular, this paper educates readers about the global PMUT outlook, their governing design principles, their manufacturing methods, nonconventional yet useful PMUT designs, and category-wise applications. Crucial comparison charts of thin-film piezoelectric material used in PMUTs, and their categorically targeted applications are depicted and discussed to enlighten any MEMS designer who plans to work with PMUTs. Moreover, each relevant section features clear future predictions based on the author’s past knowledge and expertise in this field of research and on the findings of a careful literature survey. In short, this review is a one-stop time-efficient guide for anyone interested in learning about these small devices.

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32 Element Piezoelectric Micromachined Ultrasound Transducer (PMUT) Phased Array for Neuromodulation

Cited by 7 publications

References 43 publications

Piezoelectric approaches to organic polymeric materials

Piezoelectric approaches to organic polymeric materials

A piezoelectric micromachined ultrasound transducer combined with recording electrodes for acute brain preparations in vitro

Thin-film PMUTs: a review of over 40 years of research

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