Kristofer S.J. Pister (Advisor)

Research Advised by Professor Kristofer S.J. Pister

Pister Group:  List of Projects | List of Researchers

BPN924: Multimodality Platform for Neurogenesis and Neural Signal Recording After Stroke

Wentian Mi
2024

Stroke is a leading cause of disability in the United States. Recovery from stroke is complex and ultimately limited by the brains limited ability to regenerate damaged tissue. Ideally, we would want to drive neurogenesis and angiogenesis in a stroke lesion to aid in recovery. We propose a multimodality platform for stimulating neurogenesis which simultaneously allows for electrophysiological recording of neurons in the lesion area after stroke. Our aim is to provide a paradigm for making complex substrates for nervous tissue. With various devices integrated, multiple functions can be...

BPN915: Control of Microrobots with Tiny Sequence Models

Yichen Liu
Kesava Viswanadha
Nelson Lojo
Derrick Han Sun
Aviral Mishra
Rushil Desai
Zhongyu Li
2024

Generating comprehensive task schedulers and specialized low-level controllers for robots in complex environments often requires system and environment knowledge, which can result in long design times. Real-life experiments for the development, tuning, and validation of such controllers can be costly for a microrobot. To address these issues, we propose the distillation of computation-intensive expert policies (that use Model-Based Reinforcement Learning) into small sequence models trained auto-regressively on model predictive control (MPC) trajectories. Previously, we modeled the long-...

BPN803: Single Chip Mote

Daniel Lovell
Titan Yuan
Yu-Chi Lin
2024

The Single-Chip Micro Mote (SCµM) is an integrated wireless sensor node that pushes the boundaries of system-on-chip integration. A single mote is intended to be fully self-contained and functional when supplied only with a power source, and the on-chip crystal-free radio is designed to comply with BLE and IEEE 802.15.4 wireless personal area network standards. In previous work, SCµM-3C was demonstrated to join an 802.15.4 mesh network running OpenWSN, transmit BLE beacon packets to a cell phone, and perform RF temperature compensation via both initial calibration and...

BPN735: Walking Silicon Microrobots

Yichen Liu
Alexander Alvara
Daniel Lovell
Dang Le
2024

Our goal is to build a family of autonomous silicon robotic insects with actuating, computing, and power capabilities integrated. A silicon-on-insulator (SOI) device is used to house all three components. These robots use electrostatic actuators driving silicon linkages, all fabricated in the device layer of the wafer. By using electrostatic actuation, these actuator linkage systems have the advantage of being low power compared to other methods of actuation on microscale granting robot autonomy through low-power energy harvesting. Computation and communication are carried out with Single...

Daniel Teal

Graduate Student Researcher
Electrical Engineering and Computer Sciences
Professor Kristofer S.J. Pister (Advisor)
Ph.D. 2024 (Anticipated)

EECS PhD student under Prof. Kristofer Pister; previously earned a BS mechanical engineering / math from the University of Texas at Austin. Studies MEMS and microfabrication. Interested in making microfabrication faster and easier.

Daniel Lovell

Graduate Student Researcher
Electrical Engineering and Computer Sciences
Professor Kristofer S.J. Pister (Advisor)
Ph.D. 2028 (Anticipated)

Daniel Lovell attended the University of North Georgia and the U.S. Naval Academy before a hiatus to pursue research in industry. During this time, he worked on software and systems for optoelectronics, and developed new applications for optical MEMS in programmable light systems, MEMS mirror-based lidar, robot vision, and human-robot-interaction.

Daniel received his B.A. in Computer Science from UC Berkeley in 2022. He is currently pursuing a Ph.D. in EECS there, with a focus on integrated circuit design.

...

Hydrogel Actuated Carbon Fiber Microelectrode Array

Oliver Chen
Michel M. Maharbiz
Kristofer S. J. Pister
2023

Glial passivation and subsequent electrical insulation of implantable microelectrodes is a major bottleneck for long-term viability of neural probes. Self-deploying microelectrodes have been developed to minimize glial scarring and adverse biological effects near neural recording sites, but typically suffer from low electrode densities and deployment distance.

In this dissertation, we propose and evaluate a large displacement, self-deploying architecture using a water absorbing hydrogel to extrude a high density carbon fiber array out of a microfabricated shuttle. To enable mm-scale...

Titan Yuan

Graduate Student Researcher
Electrical Engineering and Computer Sciences
Professor Kristofer S.J. Pister (Advisor)
Ph.D. 2027 (Anticipated)

Titan received his B.S. and M.S. in EECS from UC Berkeley in 2019 and 2020, respectively, advised by Prof. Kris Pister. After graduating, he spent two years in industry working on radar embedded software and signal processing for autonomous vehicles. He is currently pursuing a Ph.D. in EECS, also advised by Prof. Kris Pister, with an interest in wireless sensor networks, RFICs, and RF/wireless sensing.

Yu-Chi Lin

Graduate Student Researcher
Electrical Engineering and Computer Sciences
Professor Kristofer S.J. Pister (Advisor)
Ph.D. 2027 (Anticipated)

Yu-Chi Lin is a third-year Ph.D. student, working with Prof. Ali Niknejad and Prof. Kris Pister, at Berkeley Wireless Research Center (BWRC) and Berkeley Sensor & Actuator Center (...