An ultrawide bandwidth high frequency phased-array ultrasound transducer fabricated using the PMN-0.3PT single crystal

Chi Man Wong; Yan Chen; Haosu Luo; Jiyan Dai; Kwok Ho Lam; Helen Lai Wa Chan

doi:10.1109/ULTSYM.2016.7728580

An ultrawide bandwidth high frequency phased-array ultrasound transducer fabricated using the PMN-0.3PT single crystal

Chi Man Wong, Yan Chen, Haosu Luo, Jiyan Dai, Kwok Ho Lam, Helen Lai Wa Chan

Research output: Chapter in book / Conference proceeding › Conference article published in proceeding or book › Academic research › peer-review

4 Citations (Scopus)

Abstract

High frequency (≥20 MHz) phased-array ultrasound transducers exhibit many benefits in biomedical applications. However, high performance array transducers, with high resolution and high sensitivity, are hard to fabricate due to the limitation of their rigorous dimensions. In this study, to achieve a high -6 dB bandwidth, a 20-MHz 64-elements phased-array transducer based on a PMN-0.3PT single crystal as an active layer has been fabricated using a photolithography method. High piezoelectric properties of PMN-0.3PT, such as high electromechanical coupling coefficients and high piezoelectric constants, lead the transducer to exhibit a -6 dB bandwidth of ∼90% and an insertion loss of 29 dB in the pulse-echo measurement. The results show a great enhancement on the performance when comparing with those reported 20-MHz array transducers based on piezoelectric single crystal and ceramic materials.

Original language	English
Title of host publication	2016 IEEE International Ultrasonics Symposium, IUS 2016
Publisher	IEEE Computer Society
Volume	2016-November
ISBN (Electronic)	9781467398978
DOIs	https://doi.org/10.1109/ULTSYM.2016.7728580
Publication status	Published - 1 Nov 2016
Event	2016 IEEE International Ultrasonics Symposium, IUS 2016 - Tours, France Duration: 18 Sept 2016 → 21 Sept 2016

Conference

Conference	2016 IEEE International Ultrasonics Symposium, IUS 2016
Country/Territory	France
City	Tours
Period	18/09/16 → 21/09/16

ASJC Scopus subject areas

Acoustics and Ultrasonics

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10.1109/ULTSYM.2016.7728580

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title = "An ultrawide bandwidth high frequency phased-array ultrasound transducer fabricated using the PMN-0.3PT single crystal",

abstract = "High frequency (≥20 MHz) phased-array ultrasound transducers exhibit many benefits in biomedical applications. However, high performance array transducers, with high resolution and high sensitivity, are hard to fabricate due to the limitation of their rigorous dimensions. In this study, to achieve a high -6 dB bandwidth, a 20-MHz 64-elements phased-array transducer based on a PMN-0.3PT single crystal as an active layer has been fabricated using a photolithography method. High piezoelectric properties of PMN-0.3PT, such as high electromechanical coupling coefficients and high piezoelectric constants, lead the transducer to exhibit a -6 dB bandwidth of ∼90% and an insertion loss of 29 dB in the pulse-echo measurement. The results show a great enhancement on the performance when comparing with those reported 20-MHz array transducers based on piezoelectric single crystal and ceramic materials.",

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Wong, CM, Chen, Y, Luo, H, Dai, J, Lam, KH & Chan, HLW 2016, An ultrawide bandwidth high frequency phased-array ultrasound transducer fabricated using the PMN-0.3PT single crystal. in 2016 IEEE International Ultrasonics Symposium, IUS 2016. vol. 2016-November, 7728580, IEEE Computer Society, 2016 IEEE International Ultrasonics Symposium, IUS 2016, Tours, France, 18/09/16. https://doi.org/10.1109/ULTSYM.2016.7728580

An ultrawide bandwidth high frequency phased-array ultrasound transducer fabricated using the PMN-0.3PT single crystal. / Wong, Chi Man; Chen, Yan; Luo, Haosu et al.
2016 IEEE International Ultrasonics Symposium, IUS 2016. Vol. 2016-November IEEE Computer Society, 2016. 7728580.

Research output: Chapter in book / Conference proceeding › Conference article published in proceeding or book › Academic research › peer-review

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AU - Chen, Yan

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AU - Dai, Jiyan

AU - Lam, Kwok Ho

AU - Chan, Helen Lai Wa

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AB - High frequency (≥20 MHz) phased-array ultrasound transducers exhibit many benefits in biomedical applications. However, high performance array transducers, with high resolution and high sensitivity, are hard to fabricate due to the limitation of their rigorous dimensions. In this study, to achieve a high -6 dB bandwidth, a 20-MHz 64-elements phased-array transducer based on a PMN-0.3PT single crystal as an active layer has been fabricated using a photolithography method. High piezoelectric properties of PMN-0.3PT, such as high electromechanical coupling coefficients and high piezoelectric constants, lead the transducer to exhibit a -6 dB bandwidth of ∼90% and an insertion loss of 29 dB in the pulse-echo measurement. The results show a great enhancement on the performance when comparing with those reported 20-MHz array transducers based on piezoelectric single crystal and ceramic materials.

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An ultrawide bandwidth high frequency phased-array ultrasound transducer fabricated using the PMN-0.3PT single crystal

Abstract

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ASJC Scopus subject areas

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