News

2-D semiconductor contact resistances approach the quantum limit

A paper co-authored by Berkeley EECS Prof. Jeffrey Bokor, his postdoc Yuxuan Lin, Berkeley Physics Prof. Alex Zettl, his postdoc Cong Su, and researchers at MIT, among others, describes a more efficient method of connecting atomically thin 2-D materials to other chip elements, making them a more promising alternative to 3-D silicon-based transistors.  The paper, which was published in Nature, is titled "Ultralow contact resistance between semimetal and monolayer semiconductors." It describes how using the element bismuth (in the place of ordinary metals) for connections in monolayer materials can create contact resistances that approach the quantum limit and make it possible to develop smaller devices.  “We resolved one of the biggest problems in miniaturizing semiconductor devices, the contact resistance between a metal electrode and a monolayer semiconductor material,” says Su. "Through this approach," the paper states, "we achieve zero Schottky barrier height, a contact resistance of 123 ohm micrometres and an on-state current density of 1,135 microamps per micrometre on monolayer MoS2; these two values are, to the best of our knowledge, the lowest and highest yet recorded, respectively."

Gloria Tumushabe cultivates women coders in Africa

EECS alumna and current Master's student Gloria Tumushabe (B.S. ’20) is the subject of an article in the Spring 2021 Berkeley Engineer titled "Cultivating female coders in Africa."  During the COVID pandemic shutdown, Tumushabe developed a program called Afro Fem Coders to allow her to remotely teach computer programming to girls in Uganda from her home in Walnut Creek.  Two weeks after reaching out by word-of-mouth and social media, she had heard back from more than 40 girls who were eager to participate.  She sent them money to pay for laptops and internet service, and formed an international network of women professionals to provide one-on-one mentoring.  In the year since the program began, it has grown to 120 girls from Uganda, Kenya, Tanzania, Namibia, Botswana and Ethiopia. “The more of us women in this space, the better,” she said.  Tumushabe is leading the EECS Anti-Racism Committee meetings this semester, and was awarded the 2021 EECS Eugene L. Lawler Prize for her "amazing work and dedication to diversity, equity and inclusion, and improving the EECS Department for students who come after her."

John DeNero named CDSS Associate Dean for Undergraduate Studies

EECS alumnus and Associate Teaching Prof. John DeNero (CS Ph.D. '10, advisor: Dan Klein) has been named the new Associate Dean for Undergraduate Studies in the Division of Computing, Data Science, and Society (CDSS).   DeNero earned a B.S. in Mathematical & Computational Science and Symbolic Systems, and an M.A. in Philosophy, from Stanford before coming to Berkeley.  After receiving his doctorate, he took a job as a Senior Research Scientist at Google where he worked on Google Translate and natural language processing. He came back to campus in 2014 to focus on teaching and education.  His work at Berkeley has centered on facilitating large-scale delivery of computing content, and he co-developed and teaches two of the largest courses on campus: CS 61A and Data 8. He has been honored with the UC Berkeley Distinguished Teaching Award (2018), the Jim and Donna Gray Award for Excellence in Undergraduate Teaching of Computer Science (2017), the Diane S. McEntyre Award for Excellence in Teaching Computer Science (2016), and the Tau Beta Pi Outstanding Faculty of the Year Award (2015).  He has served as the EECS vice chair for undergraduate matters, the chair of the EECS Data Science Degree Committee, and a member of the Data Science Governance Committee.

The Harvard Data Science Review spotlights Berkeley CDSS

The Harvard Data Science Review (HDSR) has thrown a spotlight on UC Berkeley's Division of Computing, Data Science, and Society (CDSS) and its leadership. In "A Conversation with Michael V. Drake and Jennifer Chayes" HDSR takes a comprehensive look at data science at Berkeley from a variety of perspectives.  UC President Drake discusses the role of data in society, and the importance of values and equity as a key part of UC's mission as California's premier public higher educational institution. Chayes, who is the Associate Provost of CDSS and Dean of the School of Information, explores CDSS’s pioneering vision, and the progress being made to build a university-wide entity to help address the opportunities and challenges created by the recent seismic advances in data science and computing.

Alvin Cheung and Somayeh Sojoudi named ONR 2021 Young Investigators

EECS Assistant Profs. Somayeh Sojoudi and Alvin Cheung have received Office of Naval Research (ONR) 2021 Young Investigator Program Awards (YIP). The ONR YIP is one of the nation’s oldest and most selective basic-research, early-career awards in science and technology. It recognizes new-career faculty—who obtained their Ph.D. on or after 2013—for prior academic achievement and their potential to make significant scientific contributions in the future. Sojoudi's award is for "High-performance Computational Methods for Nonlinear Machine Learning Problems" in the area of Machine Learning, Reasoning and Intelligence; Cheung's award is for "A Framework for Automatic Leveraging of Trusted Execution Environments" in the area of Cyber Security and Complex Software Systems. They are among 38 recipients who will share $20M in funding to provide laboratory equipment, postdocs, graduate student stipends/scholarships, and other expenses critical to conducting innovative scientific research that will benefit the U.S. Navy and Marine Corps.

Leyla Kabuli wins 2021 University Medal

Senior undergraduate and future graduate EECS student Leyla Kabuli has won the University Medal, UC Berkeley's highest honor.  She is the daughter of EECS alumna A. Nazli Gündes (Ph.D. ’88, advisor: Charles Desoer), now an ECE professor at UC Davis.  Kabuli, who will graduate with a 4.0 GPA, attended Berkeley on a prestigious Regents' and Chancellor's scholarship, and earned simultaneous degrees in EECS and Music.  Her research interests lie in diagnostic imaging, vision and perception, and are focused on super-resolution microscopy and magnetic particle imaging.  Her other honors include a Jacobs Institute Innovation Catalysts Ignite Grant, an Outstanding Graduate Student Instructor Award, a Samuel Silver Memorial Scholarship Award, an Edward Frank Kraft Award for Freshmen, and a California Seal of Biliteracy in French and Turkish. The University Medal recognizes a graduating student’s outstanding research, public service and strength of character.  She will be funding her graduate education with a Berkeley Fellowship for Graduate Study, as well as a National Science Foundation fellowship for outstanding graduate students in STEM fields.  Kabuli was offered full graduate fellowships to attend Stanford and MIT but chose Berkeley because “I might be biased, but Berkeley has the best electrical engineering program in the country,” she said.

Jiaheng Zhang wins 2021 Facebook Fellowship for Security & Privacy

Third-year EECS graduate student Jiaheng Zhang (advisor: Dawn Song) has won a 2021 Facebook Fellowship for Security & Privacy.   He is the only student from Berkeley this year to win one of these coveted fellowships, which are designed to support emerging scholars who are engaged in innovative research.  Zhang's focus is on computer security and cryptography, especially zero-knowledge proofs and their applications on blockchain and machine learning models.  He is a member of the RISE Lab, the Initiative for Cryptocurrencies & Contracts Lab (IC3), and the Berkeley AI Research (BAIR). 

Rising Stars 2021 Accepting Applications

Rising Stars 2021, an academic career workshop for women in EECS, will be hosted by MIT on October 14-15, 2021.  The virtual event, which was hosted by Berkeley last year, is an intensive workshop for women graduate students and postdocs who are interested in pursuing academic careers in electrical engineering and computer science.   Application deadline: June 16, 2021.

Charles Dalziel's Ground-Fault Circuit Interrupters still make plugging in safer

EE alumnus and Prof. Charles Dalziel (1904-1986, B.S./M.S./E.E. 1935 ), the inventor of the Ground-fault circuit interrupter (GFCI),  is the subject of an article in the California Department of Consumer Affairs (DCA) Spring 2021 Consumer Connection.  Patented in 1965 by Dalziel, a professor in the department for 35 years (1932-1967), GFCIs are built into electrical systems and power cords to monitor the current flowing through them.  If the incoming current differs from the returning current, the GFCI interrupts the power "to prevent a lethal dose of electricity, specifically before the electricity can affect your heartbeat."  Besides protecting users against severe electrical shock, a particular hazard in wet environments, GFCIs prevent surges that can cause electrical fires.  The U.S. National Economic Council (NEC) now mandates GFCI protection in many areas of the home as part of their standards for modern building construction.  The article explores GFCI's importance, their California connection, and how to ensure one's home is up to current safety standards.

Jelani Nelson to participate in event celebrating statistician David Blackwell

EECS Prof. Jelani Nelson will participate on a panel discussing Berkeley's first Black full professor, statistician David Blackwell, on Thursday, April 29, 2021.  Blackwell made seminal contributions to game theory, probability theory, information theory, and Bayesian statistics. He was the first African American inducted into the National Academy of Sciences, and the seventh African American to receive a PhD in Mathematics.  The panel discussion brings together colleagues, students, and friends of Professor Blackwell, who will discuss his invaluable and lasting contributions to the field of Statistics, as well as the role he played in their careers and lives.  They will also explore life in the early days of the Berkeley Department of Statistics.