14 Exploring and Explaining Circuits by Yannis Tsividis Recollections from Yannis’ Graduate Student Years at Berkeley by Paul Gray
Total Page：16
File Type：pdf, Size：1020Kb
FALL 2014 VOL. 6 • NO. 4 www.ieee.org/sscs-news FEATURES 14 Exploring and Explaining Circuits By Yannis Tsividis Recollections from Yannis’ Graduate Student Years at Berkeley By Paul Gray 36 Yannis Tsividis’ Early Contributions to MOS Filters By John Khoury and Mihai Banu ABOUT THIS IMAGE: Columbia’s mixed-signal group in the late 1980s. Find out 41 A Mind for all Seasons who’s who in “Exploring and Explaining Circuits.” By Nagendra Krishnapura and Shanthi Pavan 44 How a Humble Circuit Designer Revolutionized MOS Transistor Modeling By Colin C. McAndrew COLUMNS/ DEPARTMENTS 48 Yannis Tsividis, Path-Breaking Researcher and Educator 3 CONTRIBUTORS By Gabor Temes 4 EDITOR’S NOTE 5 ASSOCIATE EDITOR’S VIEW 52 Yannis Tsividis, Educator 6 cONTRIBUTING EDITOR’s VIEW By David Vallancourt 7 cIRCUIT INTUITIONS Yannis Tsividis as a Role Model 9 A CIRCUIT FOR ALL SeASONS for Reversing the Negative Spiral 13 GUEST EDITORIAL of Basic Circuits and Systems Education 63 PEOPLE By Joos Vandewalle 66 CONFERENce REPORTS 68 CHAPTERS 76 IEEE NEWS 79 CONFERENce CALENDAR TUTORIAL 56 Telemetry for Implantable Medical Devices By Ulrich Bihr, Tianyi Liu, and Maurits Ortmanns Digital Object Identifier 10.1109/MSSC.2014.2347712 IEEE SOLID-STATE CIRCUITS MAGAZINE FALL 2014 1 Senior Administrator, Katherine Olstein Terms to 31 Dec. 2015 IEEE SSCS, 445 Hoes Lane Arya Behzad, Shekhar Borkar, Michael H. IEEE SOLID-STATE Piscataway, NJ 08854 USA Perrott, Trudy Stetzler, William Redman-White CIRCUITS MAGAZINE Tel: +1 732 981 3410 Fax: +1 732 981 3401 Terms to 31 Dec. 2016 EDITOR-IN-CHIEF Jake Baker, Franz Dielacher, Peter Kinget, Mary Y. Lanzerotti Administrator Lauren Caruso Bram Nauta, Stefan Rusu [email protected] , [email protected] IEEE SSCS, 445 Hoes Lane Piscataway, NJ 08854 USA Region 8 Representative Bram Nauta TECHNOLOGY EDITOR Tel: +1 732 562 3871 Jake Baker Fax: +1 732 981 3401 Region 10 Representative [email protected] Tadahiro Kuroda SSC ADMINISTRATIVE COMMITTEE TUTORIALS EDITOR President, Bill Bidermann Zeebo, Inc. Chairs of Standing Committees Willy Sansen Awards—John J. Corcoran [email protected] Vice-President, Jan Van der Spiegel Chapters—Jan Van der Spiegel University of Pennsylvania ASSOCIATE EDITOR FOR THE FAR EAST Education—Domine Leenaerts Patrick Yue Secretary, Mike Beunder Meetings—Ken O Membership—Tzi-Dar Chiueh [email protected] Treasurer, Shekhar Borkar Nominations—Rakesh Kumar ASSOCIATE EDITOR FOR Past President, Rakesh Kumar Publications—Glenn Gulak EUROPE AND AFRICA Technology Connexions, Inc. Marcel Pelgrom Poway, California, USA [email protected] Other Representatives ASSOCIATE EDITOR Representative to Sensors Council IEEE PERIODICALS/ Ali Sheikholeslami Darrin Young [email protected] MAGAZINES DEPARTMENT Representative to CAS from SSCS SENIOR MANAGING EDITOR CONTRIBUTING EDITOR Tony Chan Carusone Geraldine Krolin-Taylor Behzad Razavi Representative to SSCS from CAS [email protected] SENIOR ART DIRECTOR Open Tom Lee Janet Dudar [email protected] Representatives to EDA Council ASSISTANT ART DIRECTOR Bryan Ackland, Vivek Tawari NEWS EDITOR Gail A. Schnitzer Katherine Olstein Representatives to ISSCC PRODUCTION COORDINATOR [email protected] Bryan Ackland, Jan Van der Spiegel Theresa L. Smith Representative to CICC MAGAZINE ADVISORY COMMITTEE Tom Andre STAFF DIRECTOR, PUBLISHING OPERATIONS Chair: Rakesh Kumar. Jake Baker, Bill Bider- Fran Zappulla mann, Glenn Gulak, Erik Heijne, Hideto Hidaka, Representative to IEEE GOLD Program Richard Jaeger, Michael Kelly, Mary Lanzerotti, Emre Ayranci EDITORIAL DIRECTOR Dawn M. Melley Tom Lee, Katherine Olstein, Marcel Pelgrom, Representatives to Nanotechnology Council Willy Sansen, Ali Sheikholeslami, Lewis Terman, Elad Alon, Ian Young PRODUCTION DIRECTOR Alice Wang, Patrick Yue Representative to Technical Committee on RFID Peter M. Tuohy Shahriar Mirabbasi ADVERTISING PRODUCTION MANAGER Representative to Engineering Technology Felicia Spagnoli IEEE SOLID-STATE Management Council BUSINESS DEVELOpmeNT MANAGER Mike Beunder CIRCUITS SOCIETY Susan Schneiderman Representative to Biometrics Council +1 732 562 3946 Fax: +1 732 981 1855 Executive Director, Michael Kelly Bruce Hecht [email protected] IEEE SSCS, 445 Hoes Lane www.ieee.org/ieeemedia Piscataway, NJ 08854 USA Elected AdCom Members at Large Tel: +1 732 981 3400 Terms to 31 Dec. 2014 IEEE prohibits discrimination, harassment, and Fax: +1 732 981 3401 Christian Enz, Hideto Hidaka, Kofi Makinwa, bullying. For more information, visit http://www. [email protected] Boris Murmann, Roland Thewes ieee.org/web/aboutus/whatis/policies/p9-26.html. SCOPE: Each issue of IEEE Solid-State Circuits Magazine is envisioned as a self-contained resource for fundamental theories and practical advances within the field of integrated cir- cuits (ICs). Written at a tutorial level and in a narrative style, the magazine features articles by leaders from industry, academia and government explaining historical milestones, current trends and future developments. CONTACT INFORMATION: See the “Contact Us” page on SSCS Web site: http://ewh.ieee. org/soc/sscs/index.php?option=com_content&task=view&id= 10&Itemid=3. IEEE Solid-State Circuits Magazine (ISSN 1943-0582) ( SCMOCC) is published quarterly by The Institute of Electrical and Electronics Engineers, Inc. Headquarters: 3 Park Avenue, 17th Floor, New York, NY 10016-5997, USA +1 212 419 7900. Responsibility for the contents rests upon the authors and not upon the IEEE, the Society, or its members. The magazine is a member- ship benefit of the IEEE Solid-State Circuits Society, and subscriptions are included in Society fee. Replacement copies for members are available for US$20 (one copy only). Nonmembers can purchase individual copies for US$172.00. Nonmember subscription prices are available on request. Copyright and Reprint Permissions: Abstracting is permitted with credit to the source. Libraries are permitted to photocopy beyond the limits of the U.S. Copyright law for private use of patrons: 1) those post-1977 articles that carry a code at the bottom of the first page, provided the per-copy fee indicated in the code is paid through the Copyright Clearance Center, 222 Rosewood Drive, Danvers, MA 01970, USA; and 2) pre-1978 articles without fee. For other copying, reprint, or republication permission, write to: Copyrights and Permissions Department, IEEE Service Center, 445 Hoes Lane, Piscataway NJ 08854 USA Copyright © 2014 by The Institute of Electrical and Electronics Engineers, Inc. All rights reserved. Periodicals postage paid at New York, NY, and at additional mailing offices. Postmaster: Send address changes to IEEE Solid-State Circuits Magazine, IEEE, 445 Hoes Lane, Piscataway, NJ 08854 USA. ABOUT THE COVER: Canadian GST #125634188 PRINTED IN USA Yannis Tsividis, who is with Columbia University, is a born researcher and Digital Object Identifier 10.1109/MSSC.2014.2347713 educator. He is always interested in ideas, and his career has been an inspiration to many, including the guest editor of this issue, Peter Kinget. (Photo by Barbara Alper.) 2 FALL 2014 IEEE SOLID-STATE CIRCUITS MAGAZINE GUEST EDITORIAL Peter Kinget A Born Educator and Researcher It has been a distinct pleasure to and academic, to have these types of Dr. Khoury and Dr. Banu, former Ph.D. coordinate the special section fea- interactions and encouragements. Of students with a distinguished career in turing the contributions of Yannis course, by now I have learned that this the IC industry, discuss the early devel- ITsividis to (solid-state) circuits and is really the hallmark of Yannis, and the opment of integrated continuous-time systems education, MOS modeling, articles in this issue illustrate this am- filters. Prof. Krishnapura and Prof. and analog and RF IC design. ply. He is a born educator and research- Pavan, former Ph.D. students who I came to know of Prof. Tsividis er. He is genuinely interested followed in Yannis’s through his papers and books while in the research of others, footsteps by choosing [Yannis] is genuinely starting out as a graduate student in stimulates the development an academic career, interested in Leuven. One summer we were fortunate of new ideas, and always recall their experiences the research of to have a summer course on analog IC strives to find the original as graduate students. others, stimulates design on campus, and he was one of source of ideas. But, like Prof. Gabor Temes re- the development the instructors. I distinctly remember no other, he is able to counts the impact of Yan- of new ideas, and his crystal-clear lectures on continu- identify new directions, nis’s work in switched always strives to ous-time filters (with hands-on simula- even if it means going capacitor filters and other find the original tion exercises in the afternoon!). Most against what is consid- areas. Prof. Vallancourt source of ideas. memorable was our discussion about ered common sense. has followed in his advi- my Ph.D. research topic, where, in a His career sets an ex- sor’s educational footsteps matter of minutes, he zoomed in on the ample for all of us in academia. It has and highlights Yannis’s unique contri- key challenges and opportunities. been a distinct pleasure to have him as butions to circuits and systems edu- A few years later after presenting a colleague and mentor at Columbia. cation. Prof. Gray and Prof. Vandewal- some of my Ph.D. results at the CICC, Being a guest editor is often con- le provide sidebars recounting their I received a letter in the mail from sidered a “hard” or even “thankless” interactions with Yannis. Thanks also Columbia University. It was a hand- job. Not this time! All contributors to the editorial board for approving written note from Yannis saying that were thrilled to write an article for the proposal to feature Yannis in this he liked my paper! this issue and were very punctual issue. Last but not least, I would like It was really thrilling and stimulating in delivering all materials in a short to thank Editor-in-Chief Mary Lanze- as a student, and later as a researcher time frame, for which I would like to rotti for her skill and efforts putting thank them.