Kristofer S.J. Pister (Advisor)

Research Advised by Professor Kristofer S.J. Pister

Pister Group:  List of Projects | List of Researchers

BPN951: Berkeley Low-cost Interplanetary Solar Sail (BLISS)

Alexander Alvara
Bhuvan M. Belur
2024

Space exploration often costs multiple millions of dollars for each exploratory mission to get a single piece of equipment into orbit. These missions usually return information in the form of scans or images or samples in the form of extracted material. This work proposes the manufacture and deployment of thousands of imaging capable solar sails systems with 10 gram payloads. Power generation is enabled through solar panels and batteries. Navigation is enabled through one square meter solar sails maneuvered by inchworm motors. Communications are enabled by laser transmitters and SPAD...

Amanda Jung

Graduate Student Researcher
Electrical Engineering and Computer Sciences
Professor Kristofer S.J. Pister (Advisor)
Ph.D. 2029 (Anticipated)

Hani Gomez

Postdoctoral Researcher
Electrical Engineering and Computer Sciences
Professor Kristofer S.J. Pister (Advisor)
Ph.D. 2020, PostDoc 2024

Originally from Cochabamba, Bolivia, Hani obtained her BS in Electrical Engineering at the University of South Carolina, Columbia. In 2020, Hani graduated with a PhD from UC Berkeley, where she focused on the design, fabrication and assembly of walking silicon microrobots using MEMS technology. Now, she is once again working with Kristofer Pister, developing a six-axis controlled, electrostatically levitated 1g mass system.

BPNX1035: Six-Axis Control of Electrostatically Levitated 1g Mass (New Project)

Hani Gomez
Yichen Liu
Alexander Alvara
2024

The research focus of this project is to design, fabricate and develop a six-axis controlled electrostatically levitated mass system. While electrostatic levitation has been demonstrated before, this project focuses on developing a smaller form factor (10cmx10cm), low power (0.5W), and higher mass (1g) system. The proof mass will be levitated using actuation electrodes: four top electrodes for levitation and control of z-axis position as well as rotation about x- and y-axes, and six side electrodes for control of x- and y-axis position and z-axis rotation. To achieve stability...

Wentian Mi

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

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...

BPN987: Single-chip µV Precision ADC for SCµM-V

Yu-Chi Lin
Daniel Lovell
Ali M. Niknejad
Kristofer S.J. Pister
2024

We are developing a millimeter-square low-power wireless ADC capable of detecting and transmitting microvolt-level signals. This ADC offers potential for high-precision measurements in various domains, including biomedical, automotive, and IoT. The immediate objective of this project is to design a concurrent TMS-EEG-MRI system – a temporal and spatial imaging method that may unveil the intricacies of brain circuits. The high-precision ADC enables acquisition of EEG signals down to 10µV, while the wireless communication remains robust to heating and disturbance issues induced by MRI...

BPN990: Anti-Drone Radar-Guided Micromissiles

Titan Yuan
Carson Spoo
Cedric Murphy
Jenna Dickman
Asa Garner
Eric Yang
2024

Since drones can be flown remotely or autonomously and can navigate dangerous environments without any risk to human operators, they are attractive for military applications, including surveillance, reconnaissance, and combat missions. At the same time, enemy drones pose a growing serious threat to civilians and soldiers. Current anti-drone warfare is either inaccurate, expensive, or large in size, so this project aims to build a low-cost, crayon-sized radar-guided microrocket to target drones up to 100 m away.

Project currently funded by: Membership Fees

BPN985: Multimaterial Nanoscale 3D Printing

Daniel Teal
2024

We propose a new multimaterial direct-write printing technique with projected sub-micron resolution. Inorganic nanoparticles (≈1-10nm) of common microfabrication materials are electrically charged, manipulated electromagnetically in vacuum with an ion trap, and shot toward a substrate where they deposit onto a part under construction, similar to PVD methods. To date, we have successfully demonstrated basic multimaterial deposition. Eventually, this ion printing technology could allow rapid prototyping of integrated circuits and MEMS.

Project currently funded by: Member...

BPN915: Control of Microrobots with Reinforcement Learning

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

Developing task schedulers and low-level end-to-end controllers for microrobots operating in complex environments often demands extensive system and environment knowledge, leading to prolonged design cycles for specialized controllers. To expedite the generation of general controllers without requiring domain-specific expertise, we propose utilizing model-based reinforcement learning (MBRL) trained within simulated environments. Our research advances microrobot control through two key approaches: modeling the long-term dynamics of robots and distilling computationally intensive model...