News

New "spin-orbit torque" switching technique breaks magnetic memory speed record

EECS Chair Jeffrey Bokor is among an international team of researchers who have published a paper in the journal Nature Electronics that describes a new technique for magnetization switching — the process used to “write” information into magnetic memory — that is nearly 100 times faster than state-of-the-art spintronic devices. The advance could lead to the development of ultrafast magnetic memory for computer chips that would retain data even when there is no power.  In "Spin–orbit torque switching of a ferromagnet with picosecond electrical pulses," researchers report using extremely short, 6-picosecond electrical pulses to switch the magnetization of a thin film in a magnetic device with great energy efficiency. A picosecond is one-trillionth of a second.  The project began at UC Berkeley when Jon Gorchon, now a researcher at the French National Centre for Scientific Research (CNRS) working at the University of Lorraine L’Institut Jean Lamour in France, and Richard Wilson, now assistant professor of both mechanical engineering and materials science & engineering at UC Riverside, were postdoctoral researchers in Bokor’s lab.

Gabe Fierro wins inaugural Google - CMD-IT FLIP Dissertation Fellowship

EECS graduate student Gabriel Fierro (B.S. c. 2014, Ph.D. advisor: David Culler) has won an inaugural Google - CMD-IT FLIP Dissertation Fellowship.   He is one of 11 computer science scholars from underrepresented groups who were recognized this year for "positively influencing the direction and perspective of technology."   The award is part of a joint effort by Google Research, the Computing Alliance of Hispanic-Serving Institutions (CAHSI), and the Center for Minorities and People with Disabilities in Information Technology (CMD-IT) Diversifying Future Leadership in the Professoriate (FLIP) Alliance to increase the diversity of doctoral graduates in computing.  After completing his Ph.D., Fierro aspires to "a faculty position in a computer science department where I am able to pursue non-traditional and cross-disciplinary approaches to long-standing problems of sustainability and the built environment."  Fierro is currently working on the Buildings, Energy and Transportation Systems project in conjunction with the RISE Lab.

"Extreme MRI" chosen as ISMRM Reproducible Research pick

"Extreme MRI: Large‐scale volumetric dynamic imaging from continuous non‐gated acquisitions,” a paper by EECS alumnus Frank Ong (B.S. '13, Ph.D. '18) and his advisor, Prof. Miki Lustig, has been chosen as October's Reproducible Research pick by the International Society for Magnetic Resonance in Medicine (ISMRM).  The paper, in which the researchers attempt to reconstruct a large-scale dynamic image dataset while pushing reconstruction resolution to the limit, was chosen "because, in addition to sharing their code, the authors also shared a demo of their work in a Google Colab notebook."  Lustig and Ong, now a research engineer at Stanford, participated in a Q&A in which they discussed how they became interested in MRI, what makes Extreme MRI "extreme," the culture and value of open science, and why Lustig's grad school paper on compressed sensing became the most cited paper in MRM.  ISMRM is an international nonprofit association that promotes research development in the field of magnetic resonance in medicine to help facilitate continuing education in the field.

Mike Stonebraker wins 2020 C&C Prize

EECS Prof. Emeritus Michael Stonebraker has won the prestigious NEC Computers and Communications (C&C) Prize "For Pioneering Contributions to Relational Database Systems." The prize is awarded "to distinguished persons in recognition of outstanding contributions to research and development and/or pioneering work in the fields of semiconductors, computers, and/or telecommunications and in their integrated technologies."  In the early 1970's, Stonebraker and Prof. Eugene Wong began researching Relational Database Management Systems (RDBMS), which culminated in the creation of the Interactive Graphics and Retrieval System (INGRES), a practical and efficient implementation of the relational model running on Unix-based DEC machines.  It included a number of key ideas still widely used today, including B-trees, primary-copy replication, the query rewrite approach to views and integrity constraints, and the idea of rules/triggers for integrity checking in an RDBMS.  Stonebraker, Wong, and Prof. Larry Rowe, founded a startup called Relational Technology, Inc. (renamed Ingres Corporation), which they sold to Computer Associates in the early 1990's for $311M.  Stonebraker's student, Robert Epstein (Ph.D. '80), founded the startup Sybase, which created the code used as a basis for the Microsoft SQL Server.  Stonebraker also created Postgres in the late 1980's, which made it easier for programmers to modify or add to the optimizer, query language, runtime, and indexing frameworks.  It broadened the commercial database market by improving both database programmability and performance, making it possible to push large portions of a number of applications inside the database, including geographic information systems and time series processing.  Stonebraker retired from Berkeley in 2000 to found more companies and become an adjunct professor at MIT.  His achievements have been recognized with an IEEE John von Neumann Medal in 2005, ACM A.M. Turing Award in 2014, and ACM SIGMOD Systems Award in 2015.

Ali Niknejad wins SIA 2020 University Research Award

EE alumnus and Prof.  Ali Niknejad (M.S. '97 / Ph.D. '00, advisor:  Robert G. Meyer ) has been selected to receive a Semiconductor Industry Association (SIA) 2020 University Research Award.  This award recognizes lifetime research contributions to the U.S. semiconductor industry by university faculty.  Niknejad is faculty director of the Berkeley Wireless Research Center (BWRC), co-founder of HMicro, chief technologist at LifeSignals, and the inventor of the REACH™ technology, which has the potential to deliver robust wireless solutions to the healthcare industry. His general research interests lie within the area of wireless communications and biomedical sensors and imaging. His focus areas of his research include analog, RF, mixed-signal, mm-wave circuits, device physics and compact modeling, and numerical techniques in electromagnetics.

Dorsa Sadigh wins 2020 IEEE TCCPS Early Career Award

EECS alumna Dorsa Sadigh (BS '12 / PhD '17, advisors: Shankar Sastry and Sanjit Seshia) has been recognized with the IEEE Technical Committee on Cyber-Physical Systems (TCCPS) Early Career Award ‘‘for contributions to the theory, design, and implementation of human cyber-physical systems.’’ She is currently an Assistant Professor in the Departments of both Computer Science and Electrical Engineering at Stanford University.  Her research interests lie at the intersection of robotics, machine learning, and control theory, and she is currently working on developing efficient algorithms for safe, reliable, and adaptive human-robot and generally multi-agent interactions.

Kathy Yelick wins 2020 Berkeley Lab Citation for Exceptional Achievement

EECS Prof. Katherine Yelick has won The Berkeley Lab Citation, the Lawrence Berkeley National Laboratory (LBNL) Director's Award for Exceptional Achievement which "honors extraordinary achievement(s) in broad categories of science and operations, with special focus on service to the Lab and/or the DOE National Lab Complex."  Yelick was cited for "extraordinary leadership both within the Lab and at the national level, including her significant role in developing DOE strategy in Exascale and Quantum Computing, Big Data, and Artificial Intelligence."  Yelick is the Senior Advisor on Computing at LBNL and the Associate Dean for Research in UC Berkeley's new Division of Computing, Data Science and Society (CDSS).  She was the Associate Laboratory Director for Computing Sciences at LBNL from 2010 through 2019, and led the National Energy Research Scientific Computing Center (NERSC) prior to that.  Her research focuses on high performance computing, programming languages, compilers, parallel algorithms, and automatic performance tuning. She currently leads the ExaBiome project on scalable tools for analyzing microbial data and co-leads the Berkeley Benchmarking and Optimization (Bebop) group.

An interview with Tapia 2020 keynote speaker Colin Parris

EE alumnus Colin Parris (M.S. '87, Ph.D. '94, advisor: Domenico Ferrari), the Ken Kennedy keynote speaker at the 2020 ACM Richard Tapia Celebration of Diversity in Computing Conference, is the subject of a CMDIT interview.  He talks about his childhood, the value of diversity in technological fields, and what young people interested in tech careers should know.  His keynote lecture, titled "How Digital Technology Will Shape the Future of Business," discussed how AI's physical/digital marriage can accelerate business growth and create new opportunities for people who want to find solutions to some of the world's biggest problems.  Parris is currently the Senior Vice President and Chief Technology Officer at GE Digital.

Sophia Shao and Alp Sipahigil win Berkeley Engineering faculty fellowships

New EECS Assistant Profs. Sophia Shao and Alp Sipahigil have received Engineering faculty fellowships, which will help fund the first five years of their projects and labs at Berkeley.   The fellowships are sponsored by Berkeley Engineering alumni and friends as part of a $1.25M program that will be shared among five new faculty.  Shao, who began teaching at Berkeley in 2019, studies computer architecture with a special focus on specialized accelerator, heterogeneous architecture and agile VLSI design methodology.  Sipahigil, who will arrive in spring 2021 from Caltech, has been focused on using nanoscale phononic and photonic structures to bring new functionalities to superconducting quantum circuits.

Alessandro Chiesa receives 2020 Okawa Research Grant

CS Assistant Prof. Alessandro Chiesa has been selected as a 2020 Okawa Foundation Research Grant recipient for his work on the "Foundations of Quantum and Non-Signaling Proofs (Post-Quantum Zero-Knowledge Proofs for Secure Distributed Systems)."  Okawa Research Grants are awarded to Asian and American scholars for studies and analyses in the fields of information and telecommunications.  Winners receive a $10K prize which is usually awarded in an autumn ceremony in San Francisco, but the event has been cancelled this year because of COVID-19.