Clark T.-C. Nguyen (Advisor)

Research Advised by Professor Clark T.-C. Nguyen

Qiutong Jin

Graduate Student Researcher
Electrical Engineering and Computer Sciences
Professor Clark T.-C. Nguyen (Advisor)
Ph.D. 2025 (Anticipated)

Qiutong Jin received B.S. in Electrical Engineering from University of Iowa in 2019. She is currently pursuing a Ph.D. in MEMS in EECS at UC Berkeley under the supervision of Prof. Clark Nguyen.

BSAC's Best: Spring 2023 Awards Announced

April 20, 2023

BSAC would like to thank all of the researchers who presented their research during BSAC's Spring 2023 Research Review on April 19th.

BSAC Industrial Members voted for the outstanding paper and presentations and the results are in. Please join BSAC in congratulating the recipients of the Spring 2023 Best of BSAC honors, Peisheng He, Daniel Klawson, and Kevin Zheng!

Peisheng He (Liwei Lin Group), Best of BSAC S2023 ...

BPN972: Temperature-Insensitive Resonant Strain Sensor

Xintian Liu
Kevin H. Zheng
2023

Explore the ultimate capability of a vibrating ring-based electrical stiffness-based resonant strain sensor, rigorously confirming a superior insensitivity to temperature that should permit it to operate under wide temperature excursions, such as experienced in harsh automotive environments.

Project currently funded by: Industry Sponsored

BPN859: High Frequency Oscillator Characterization

Qiutong Jin
Kevin H. Zheng
Xintian Liu
Kieran Peleaux
QianYi Xie
2023

This project aims to study and understand fundamental mechanisms that govern phase noise, aging, thermal stability, and acceleration stability in high frequency micromechanical resonator oscillators.

Project currently funded by: Member Fees

BPN953: Long-Term Drift of MEMS-Based Oscillators

Xintian Liu
Kevin H. Zheng
QianYi Xie
2023

This project seeks to characterize and de-mystify mechanisms behind long-term drift in MEMS-based oscillators, including ones employing various sustaining amplifiers and referenced to resonators constructed in a variety of materials, including silicon, polysilicon, AlN, diamond, and ruthenium. A measurement apparatus that suppresses unwanted sources of drift, e.g., temperature, to better focus on resonator and oscillator long-term drift will be instrumental to success and will likely entail the use of double or triple ovens, as well as environment resistant circuit design.

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BPN976: Fully-Integrated MEMS-Based Wireless Receiver

Kevin H. Zheng
2023

Recent MEMS process advancements from our group have enabled a class of low-temperature, thin-film ruthenium RF filters that can be processed directly on top of CMOS wafers. This work seeks to demonstrate the first low-IF receiver with fully-integrated MEMS-based RF channel-select filters, which permits low power applications in high-sensitivity, narrow-band software-defined communications and cognitive radio.

Project currently funded by: Member Fees

BPN867: Fully Integrated CMOS-Metal MEMS Systems

Kevin H. Zheng
Qiutong Jin
QianYi Xie
Kieran Peleaux
2022

As RF MEMS technology evolves to shift towards UHF frequencies, the parasitics inherent in hybrid fabrication approaches become the performance bottleneck. This project aims to integrate metal MEMS resonators directly over CMOS circuitry to achieve fully integrated MEMS systems. Pursuant to this goal, this project proposes several designs for UHF MEMS bandpass filters, exploring how different CMOS-compatible metals can yield performance metrics—such as quality-factor (Q), temperature stability and frequency drift—that are comparable to those of standard polysilicon MEMS resonators....

BPN828: Zero Quiescent Power Micromechanical Receiver

Qiutong Jin
Kevin H. Zheng
2023

This project aims to explore and demonstrate a mostly mechanical receiver capable of listening signals within low-frequency and very-low-frequency range. The receiver is designed to consume zero power at standby and consume very litter power (nW) only when receiving valid bits.

Project currently funded by: Membership Fees

Kevin H. Zheng

Graduate Student Researcher
Electrical Engineering and Computer Sciences
Professor Clark T.-C. Nguyen (Advisor)
Ph.D. 2025 (Anticipated)

Kevin received his B.S. in Electrical Engineering and Computer Sciences from the University of California, Berkeley in 2019.