Liwei Lin (Advisor)

Research Advised by Professor Liwei Lin

Lin Group:  List of Projects | List of Researchers

BPN993: Safe and Deformable Soft Batteries

Jong Ha Park
Peisheng He
2025

Safe and deformable soft batteries are desirable for modern products that call for good safety features such as cell phones and good conformability to be embedded onto irregular surfaces in electronics systems. Current Li-ion batteries on the commercial market are rigidly packaged and hermetically sealed to prevent: 1) the intrusion of moistures which degrade performances; and 2) the leakage of toxic and flammable electrolytes due to mechanical damages. On the other hand, various deformable/stretchable batteries have been reported in research articles and they have shown good...

Wei Yue

Graduate Student Researcher
Mechanical Engineering
Professor Liwei Lin (Advisor)
Ph.D. 2026 (Anticipated)

Wei Yue received his B.S. in Theoretical and Applied Mechanics from Peking University in 2021. He is currently pursuing Ph.D. in MEMS/Nano in Mechanical Engineering at UC Berkeley under the supervision of Professor Liwei Lin.

BSAC Fall 2024 Research Review Presenter

BPN955: AI-Powered Life-Science Monitoring Platforms

Declan M. Fitzgerald
Nikita Lukhanin
Keming Bai
Kamyar Behrouzi
2025

Access to affordable and user-friendly health-science monitoring platforms are crucial for advancing global healthcare. While lateral flow immunoassays have been the primary solution for decades, their limited sensitivity and suboptimal sample utilization present challenges. This project represents a systematic progression towards developing economically viable sensors with heightened sensitivity, applicable to both disease diagnostics and the detection of environmental contaminants. By integrating nanoplasmonics to induce visually perceptible signals and harnessing the coffee ring effect...

BPN992: Sensing and Actuation Applications Using Lithium Niobate PMUTs

Wei Yue
Megan Teng
Hanxiao Liu
Yande Peng
2025

Sensing, actuation and imaging applications based on ultrasounds could expand to many applications by means of miniaturization and low power consumption via MEMS fabrication technologies. Piezoelectric micromachined ultrasound transducers (PMUTs) with thin film designs have emerged as key commercial products but current state-of-art PMUTs are limited by the acoustic power/pressure for applications within a limited range by using AlN as the piezoelectrical material due to its process compatibility with microelectronics. One BSAC industrial member has developed a process to make PMUT devices...

Declan M. Fitzgerald

Graduate Student Researcher
Mechanical Engineering
Professor Liwei Lin (Advisor)
Ph.D. 2029 (Anticipated)

Declan is a PhD student studying mechanical engineering in Professor Liwei Lin's research group. Prior to joining BSAC and the Berkeley community, he earned his BS/MS in mechanical engineering and his BS in psychology at the University of Maryland, College Park (UMD). He performed research in UMD's Bioinspired Advanced Manufacturing laboratory, as well as in the Division of Biomedical Physics at the Food and Drug Administration. His ongoing interests involve the use of advanced micro/nanofabrication techniques for the development of medical devices.

Alexander Alvara

Graduate Student Researcher
Mechanical Engineering
Electrical Engineering and Computer Sciences
Professor Liwei Lin (Advisor)
Professor Kristofer S.J. Pister (Advisor)
Ph.D. 2025 (Anticipated)

Alexander Alvara is a final year Ph.D. Candidate in mechanical engineering who earned his 3 BS degrees from UC Irvine '17 concurrently in mechanical engineering, aerospace engineering, and materials science and engineering. Alexander is interested in extreme conditions applications and performance of MEMS devices as well as nanoscale materials engineering that investigates the interplay of materials with electromagnetism and light.

BPN941: Ultrasound-Induced Haptic Interface

Fan Xia
Huicong Deng
Umut Can Yener
Wei Yue
2025

The next big thing, AR/VR, requires an immersive Human Machine Interface (HMI) in addition to visual and sound stimuli. Although skin is the biggest organ in the human body, very few efforts compared to visual and auditory senses have been done to develop a “sense of touch”. The mechanical stimulus to generate the touch sense by the embedded mechanoreceptors in the skin at different depths has been created in many ways as vibratory actuators, microneedles, etc. In this project, we are investigating to create haptic interface via radiation force generated by piezoelectric...

Fan Xia

Graduate Student Researcher
Mechanical Engineering
Professor Liwei Lin (Advisor)
Ph.D. 2025 (Anticipated)

BSAC Spring 2024 Research Review Presenter

Likun Zhang

Former Researcher
Mechanical Engineering
Professor Liwei Lin (Advisor)
Visiting Scholar 2024

Anticipated Ph.D 2025 (Tsinghua Berkeley Shenzhen Institute)

Wei Xu

Former Researcher
Mechanical Engineering
Professor Liwei Lin (Advisor)
Visiting Scholar 2024

Dr. Wei Xu is a distinguished overseas talent under the Shenzhen Peacock Program and a senior member of IEEE. He earned his bachelor's and master's degrees in engineering from Huazhong University of Science and Technology in 2010 and 2013, respectively, and completed his PhD at the Hong Kong University of Science and Technology in 2017. Since joining the School of Electronic and Information Engineering at Shenzhen University in 2018 (Associate Prof.), he has also become a visiting scholar at UC Berkeley since 2024. His research primarily focuses on CMOS-MEMS/MEMS integrated sensor...