Bayesian-Optimized Collapse-Mode CMUT with Trenched Membrane for High Output Pressure
Yuanyu Yu, Xin Liu, Jiujiang Wang, Shuang Zhang, Sio Hang Pun · 2026
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Description
Yuanyu Yu and colleagues redesigned a tiny ultrasound chip, called a CMUT, to push out much stronger sound for medical imaging. Their design pairs a collapse working mode with a grooved membrane, then tunes the groove by smart search.
A plate-bending model first estimated the best groove position, narrowing the space the search had to explore. Tuning groove position, depth, and width together beat tuning them one by one, reaching 72.34 kilopascals of output pressure. Against a plain membrane, the tuned design more than doubled output pressure and lifted the pressure-bandwidth product by about 29 percent. Repeat runs varied by only 0.052 percent in output, Yu notes, showing the search lands on the same design reliably.
Catalog record
| CREATOR | Yuanyu Yu, Xin Liu, Jiujiang Wang, Shuang Zhang, Sio Hang Pun |
|---|---|
| YEAR | 2026 |
| COLLECTION | PAPERS |
| FORMAT | TXT |
| FILE SIZE | 90 KB |
| LICENSE | https://creativecommons.org/licenses/by/4.0 |
| RIGHTS | CC BY |
| SOURCE | Europe PMC |