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19 Jan 2026
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SERC
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Institute of Microelectronics
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Effect of DC Bias on Optimizing Sc0.3Al0.7N Cantilever-Type MEMS Speaker to Improve Acoustic Performance (Pending publish)
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Prakasha.C. Ramegowda,
D. S. W. Choong,
S. Trivedi,
T. Y. Feng,
S. Ghosh,
Jihang Liu,
T.Y. Shun,
H. Yan,
Mantalena Sarafianou,
F. Cerini,
A. Leotti,
M. G. Koppisetti,
A. Das,
C. Lazzari,
Y. Koh
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2025 IEEE SENSORS
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20 Oct 2025
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SERC
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Institute of Microelectronics
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Investigating Amplitude Modulation Effects on Wide Bandwidth & High SPL Sc
<sub>0.3</sub>
Al
<sub>0.7</sub>
N MEMS Ultrasonic Speakers (Pending publish)
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David Sze Wai Choong,
Yu Feng Thien,
Prakasha Chigahalli,
Duan Jian Goh,
Shyam Trivedi,
Jihang Liu,
Yong Shun Teo,
Hong Yan,
Daniel Chen,
Yul Koh,
Alberto Leotti,
Chang Kwan Teo,
Silvia Adorno
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2025 IEEE International Ultrasonics Symposium (IUS)
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1 Oct 2025
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SERC
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Institute of Microelectronics
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Beam and Cantilever Supported PMUTs for Enhanced Transmit Sensitivity and Linearity
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Shyam Trivedi,
Duan Jian Goh,
Prakasha Chigahalli Ramegowda,
Jihang Liu,
Yong Shun Teo,
Hong Yan,
Ravi Shankar,
Naadaa Ghulaam Zakiyyan,
Amal Das,
Carla Lazzari,
Alberto Leotti,
Yul Koh
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IEEE Sensors Journal
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18 Dec 2024
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SERC
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Institute of Microelectronics
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Hybrid AIR-Coupled Rangefinder with Sputtered PVD PZT and SC0.2al0.8N PMUTs for Pulse-Echo Applications
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David Sze Wai Choong,
Daniel Ssu-Han Chen,
Mantalena Sarafianou,
Duan Jian Goh,
Jihang Liu,
Sagnik Ghosh,
Prakasha Ramegowda,
Srinivas Merugu,
Qing Xin Zhang,
Peter Chang,
Amal Das,
Alberto Leotti,
Carla Lazzari,
Domenico Giusti,
Yul Koh
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2024 IEEE Ultrasonics, Ferroelectrics, and Frequency Control Joint Symposium (UFFC-JS)
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18 Dec 2024
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SERC
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Institute of Microelectronics
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A Study on PVD PZT and Sc0.2Al0.8N PMUTS in Series and Parallel Connection for Optimizing Acoustic Performance
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David Sze Wai Choong,
Daniel Ssu-Han Chen,
Mantalena Sarafianou,
Duan Jian Goh,
Jihang Liu,
Srinivas Merugu,
Sagnik Ghosh,
Prakasha Ramegowda,
Qing Xin Zhang,
Peter Chang,
Joshua En-Yuan Lee,
Jason Jia,
Alberto Leotti,
Luigi Baretta,
Domenico Giusti,
Alessandro Savoia,
Yul Koh
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2024 IEEE Ultrasonics, Ferroelectrics, and Frequency Control Joint Symposium (UFFC-JS)
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18 Dec 2024
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SERC
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Institute of Microelectronics
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Low-Vacuum Sensing With Silicon-On-Nothing Resonating Membrane
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Daniel Ssu-Han Chen,
Jihang Liu,
David Sze Wai Choong,
Duan Jian Goh,
Sagnik Ghosh,
Jaibir Sharma,
Yul Koh
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2024 IEEE Ultrasonics, Ferroelectrics, and Frequency Control Joint Symposium (UFFC-JS)
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7 May 2024
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SERC
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Institute of Microelectronics
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In-Air Long-Range Environmental Temperature Sensing with A Single Scandium-Doped Aluminum Nitride pMUT Array
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Mantalena Sarafianou,
Daniel Ssu-Han Chen,
David Sze Wai Choong,
Duan Jian Goh,
Jihang Liu,
Srinivas Merugu,
Qing Xin Zhang,
Huamao Lin,
Steven H. J. Lee,
Peter H. K. Chang,
Yee Lung Lee,
Carlo L. Prelini,
Filippo D’Ercoli,
Dao Hao Sim,
Alberto Leotti,
Laura Castoldi,
Domenico Giusti,
Joshua E.-Y. Lee
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2023 22nd International Conference on Solid-State Sensors, Actuators and Microsystems (Transducers)
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12 Nov 2023
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SERC
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Institute of Microelectronics
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A Feasibility Study on Underwater 2D Localization Using PZT pMUTs
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Mantalena Sarafianou,
Daniel Ssu-Han Chen,
David Sze Wai Choong,
Duan Jian Goh,
Jihang Liu,
Joshua En-Yuan Lee,
Srinivas Merugu,
Qing Xin Zhang,
Peter H. K. Chang,
Domenico Giusti,
Laura Castoldi,
Claudia Pedrini,
Luca Barabani,
Alberto Leotti,
Young Jik Hur,
Yee Lung Lee
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2023 IEEE International Ultrasonics Symposium (IUS)
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7 Nov 2023
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SERC
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Institute of Microelectronics
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DC-Bias Effects on Sputtered PZT pMUTs with High Transmit and Receive Sensitivities in Immersion for Imaging applications
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Mantalena Sarafianou,
David Sze Wai Choong,
Duan Jian Goh,
Jihang Liu,
Srinivas Merugu,
Qing Xin Zhang,
Peter H. K. Chang,
Domenico Giusti,
Laura Castoldi,
Filippo D’Ercoli,
Riccardo Tacchini,
Alberto Leotti,
Dao Hao Sim,
Alessandro Stuart Savoia,
Joshua En-Yuan Lee
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2023 IEEE International Ultrasonics Symposium (IUS)
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13 Nov 2021
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SERC
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Institute of Microelectronics
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Silicon-On-Nothing ScAlN pMUTs
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David Sze Wai Choong,
Daniel Ssu-Han Chen,
Duan Jian Goh,
Jihang Liu,
Sagnik Ghosh,
Yul Koh,
Jaibir Sharma,
Srinivas Merugu,
Fabio Quaglia,
Marco Ferrera,
Alessandro Stuart Savoia,
Eldwin Jiaqiang Ng
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2021 IEEE International Ultrasonics Symposium (IUS)
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