Everything you always wanted to know about worst-case (but were afraid to ask) …
Helmut Graeb,
Technische Universitaet Muenchen –
Abstract:
Process corners, corner cases, worst case parameter sets, …; there are a lot of myths about certain parameter sets that are supposed to capture some kind of measure for variability of a circuit manufactured in a semiconductor technology. But what are these corners really? How are they determined? How should the results of a worst-case simulation be interpreted? And how can I get an estimation of the yield, more specifically, the parametric yield? These are questions that every designer of analog and mixed-signal circuits is confronted with in his every-day life of designing complex circuits in ever-advancing technologies with ever-increasing transistor variability. The first part of the talk will give some answers.
Constraints are key elements of analog design automation: a mathematical optimization tool would not be applicable if it would not be provided with constraints to keep transistors in saturation, to take care of symmetrical sizing, for instance. Interestingly, the netlist of an analog circuit inherently can provide a lot of constraints. The second part of the talk presents a method to automatically extract constraints out of a given netlist. It consists of two parts. First, an analysis of the hierarchical structure of a circuit is described. Second, a signal path analysis is presented. The overall outcome are constraints for sizing and placement, as well as a construction plan for analog placement. It will be illustrated how to use this outcome in sizing and placement of analog circuits.
Bio: Helmut Graeb got his Dipl.-Ing., Dr.-Ing., and habilitation degrees from Technische Universitaet Muenchen in 1986, 1993 and 2008, respectively. He was with Siemens Corporation, Munich, from 1986 to 1987, where he was involved in the design of DRAMs. Since 1987, he has been with the Institute of Electronic Design Automation, TUM, where he has been the head of a research group since 1993. His research interests are in design automation for analog and mixed-signal circuits, with particular emphasis on Pareto optimization of analog circuits considering parameter tolerances, analog design for yield and reliability, hierarchical sizing of analog circuits, analog/mixed signal test design, discrete sizing of analog circuits, structural analysis of analog and digital circuits, and analog layout synthesis. Dr. Graeb has, for instance, served as a Member of the Executive Committee of the ICCAD conference, as a Member or Chair of the Analog Program Subcommittees of the ICCAD, DAC, and D.A.T.E conferences, as Associate Editor of the IEEE TRANSACTIONS ON CIRCUITS AND SYSTEMS PART II: ANALOG AND DIGITAL SIGNAL PROCESSING and IEEE TRANSACTIONS ON COMPUTER-AIDED DESIGN OF INTEGRATED CIRCUITS AND SYSTEMS, and as a Member of the Technical Advisory Board of MunEDA GmbH Munich, which he co-founded. He is a Senior Member of IEEE (CAS) and member of VDE (ITG). He was the recipient of the 2008 prize of the Information Technology Society (ITG) of the Association for Electrical, Electronic and Information Technologies (VDE), of the 2004 Best Teaching Award of the TUM EE Faculty Students Association, of the 3rd prize of the 1996 Munich Business Plan Contest.
Date: 2013-Dec-12 Time: 10:30:00 Room: room EA3, Torre Norte do IST
For more information:
Upcoming Events
OLISSIPO Summer School in Lisbon | Computational phylogenetics to analyse the evolution of cells and communities

We are happy to announce the OLISSIPO Summer School on Computational phylogenetics to analyse the evolution of cells and communities, which will be held in Lisbon, Portugal, at INESC-ID, between July 2-7, 2023.
Keynote speakers:
David Posada, University of Vigo (class)
João Alves, University of Vigo (hands-on)
Nadia El-Mabrouk, Université de Montréal (class)
Mattéo Delabre, Université de Montréal (hands-on)
Ran Libeskind-Hadas, Claremont McKenna College (class and hands-on)
Russell Schwartz, Carnegie Mellon University (class and hands-on)
See the preliminary agenda at: https://olissipo.inesc-id.pt/tree-tango-school
Registration is mandatory. You can register at: https://forms.gle/VsASFHW5E7MJvaCc9
The registration fee is 250€ for students and OLISSIPO members and 350€ for postdocs or other researchers (meals indicated at the schedule of the school are included, accommodation and flights are not). All details will be made available upon registration.
We will have slots for flash talks (3-10 min depending on the number of submissions) to present yourself and the work you have been developing in your research.
The 13th Lisbon Machine Learning School | LxMLS 2023

The Lisbon Machine Learning Summer School (LxMLS) takes place yearly at Instituto Superior Técnico (IST). LxMLS 2023 will be a 6-day event (14-20 July, 2023), scheduled to take place as an in-person event.
The school covers a range of machine learning topics, from theory to practice, that are important in solving natural language processing problems arising in different application areas. It is organized jointly by Instituto Superior Técnico (IST), a leading Engineering and Science school in Portugal, the Instituto de Telecomunicações, the Instituto de Engenharia de Sistemas e Computadores, Investigação e Desenvolvimento em Lisboa (INESC-ID), the Lisbon ELLIS Unit for Learning and Intelligent Systems (LUMLIS), Unbabel, Zendesk, and IBM Research.
Check online for information about past editions: LxMLS 2011, LxMLS 2012, LxMLS 2013, LxMLS 2014, LxMLS 2015, LxMLS 2016, LxMLS 2017, LxMLS 2018, LxMLS 2019, LxMLS 2020, LxMLS 2021, LxMLS 2022 (you can also watch the videos of the lectures for 2016, 2017, 2018, and 2020).
31st International Conference on Information Systems Development (ISD 2023)

The 31st International Conference on Information Systems Development (ISD 2023) conference provides a forum for research and developments in the field of information systems. The theme of ISD 2023 is “Information systems development, organizational aspects and societal trends”. New trends in developing information systems emphasize the continuous collaboration between developers and operators in order to optimize the software delivery time. The conference promotes research on methodological and technological issues and how IS developers and operators are transforming organizations and society through information systems.
The ISD 2023 conference held this year also provides an opportunity for researchers and practitioners to promote their research, practical experience, and to discuss issues related to Information Systems through papers, posters, and journal-first paper presentations.
ISD 2023 will be hosted by Instituto Superior Técnico, in Lisbon, Portugal, on August 30–September 1, 2023.