Ernst Lüder

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Ernst Lüder (born February 20, 1932 in Schiltach , Black Forest ) is a German engineer and professor of network and systems theory . He is one of the pioneers who have helped shape the fields of flat screens , signal processing and system theory.

Life

Ernst Lüder studied electrical engineering at the TH Stuttgart and, after graduating as a graduate engineer, was a scientific assistant at the Institute for Theory of Electrical Engineering with Wilhelm Bader . After his doctorate in 1962 and after his habilitation (1967), Lüder initially taught as a private lecturer at the TH Stuttgart.

From 1968 to 1971 Lüder carried out research at Bell Telephone Laboratories in Holmdel (USA) in the field of the design and optimization of miniaturized filters for telephone applications. He was then appointed professor for network and systems theory and head of the institute of the same name at the University of Stuttgart.

Even after he retired in 1999, Lüder remains closely connected to science through research, advice and as a multiple journal and book author. He is married with two grown sons and has lived in Phoenix, Arizona , with his wife since he retired .

professorship

In the 1971 winter semester, Ernst Lüder was appointed professor at the University of Stuttgart . The fields of work of his predecessor Wilhelm Bader , who had held the chair since 1939 and was also his academic teacher, have been divided into two separate institutes. Günther Lehner took over the "Institute for Theory of Electrical Engineering" in 1972 and continued the focus on field theory . Ernst Lüder took over the field of network theory in the newly founded "Institute for Network and System Theory". As an additional area, Lüder has included systems theory in the institute's teaching and research activities, which uses mathematical methods to describe the temporal and frequency-dependent behavior of systems and was originally founded for communications technology by Karl Küpfmüller . Lüder built the institute and, as a continuation of his research work in the USA, further laboratories for the realization of hybrid microcircuits in thin and thick technology.

In 1988 Lüder founded the laboratory for screen technology with the support of the Federal Ministry of Research (BMBF) and the state of Baden-Württemberg and expanded it into an effective, research-intensive and practice-oriented facility. Numerous graduate and postgraduate students benefited from its activities. His main areas of work were the design of networks and systems for analog, digital and optical signal processing, flat screens and layer technology as well as sensors in layer technology and micromechanical systems.

Attempts by other research institutions to recruit him for a job there were therefore obvious. In 1982 he turned down a call to the University of Duisburg and a Fraunhofer Institute to be founded there, and for this he built the Institute for Microelectronics Stuttgart (IMS) in Stuttgart from 1982-85 , which was later headed by Bernd Hoeflinger and then by Joachim Burghartz was taken over.

Many years of experience in these areas with a special focus on circuit development and optimization with random processes and the production of components in thin-film technology formed the basis for his successful cooperation with industry and international scientific organizations.

The laboratory for screen technology, which is unique in Germany, with clean rooms almost on an industrial scale, researches and develops, among other things, flat liquid crystal screens with electronic control integrated in every pixel. The clients are the Federal Ministry of Research, the European Union and companies from Germany, France, England, the USA, Japan and South Korea. The almost 40 employees are financed from third-party funds. Because of this special laboratory, Lüder is often referred to as the "screen pope" in university jargon.

Lüder also makes his knowledge available to industry: with his start-up help, special thin-film laboratories were set up at the companies Endress and Hauser and Staiger . The procedures developed at his institute for low-cost digital signal processing were also successfully used in practice. As director of the Institute for Microelectronics, he contributed to providing medium-sized industry with easier access to integrated circuits. As head of the laboratory for screen technology of the German industry, he made the technology of flat liquid crystal screens available for entry into this technology, which is dominated by Asia in the manufacturing sector.

Numerous institutions fall back on Lüder's experience. Since 1972 he has been working as an expert for the BMBF in the fields of microelectronics, information technology, device technology and photonics and since 1972 for the German Research Foundation as an expert in the field of signal processing. Due to the broad field of work, which ranges from system theory and signal processing to layering technology and flat screen technology, the Faculty of Electrical Engineering and Information Technology (former Dean Joachim Speidel ) created two chairs for the period after Lüder's retirement, which later become Institutes have been expanded: Institute for Signal Processing and System Theory (Head Bin Yang ) and Institute for Large Area Microelectronics (Head Norbert Frühauf ).

On the occasion of his retirement , his employees invited to a celebratory colloquium in April 1999. After greetings from Vice Rector Erich Zahn and Peter Göhner , the Dean of the Faculty of Electrical Engineering and Information Technology and Klaus Rupf from the Federal Ministry of Research , three lectures gave a review of Lüder's areas of work: “Physical aspects of the theory of electrical networks” ( Wolfgang Mathis , University of Magdeburg ), “The Present State of Technology and Business of Flat Panel Displays ”( Malcolm Thompson , Palo Alto / USA), and Ernst Lüder himself reported on“ Optical signal processing with components from display technology ”. As a research pioneer, he by no means sees this subject as closed, and therefore continues to be involved in the scientific preparation for future solutions in contact with industrial and research partners and writes corresponding journals and books.

Ernst Lüder's theoretical and application-related research is documented in numerous scientific publications and patents. Industrial experts, scientists and several professors also emerged from the academic environment of Lüder. Among other things, his former scientific assistants and doctoral students Norbert Frühauf were appointed professor and head of the Institute for Large Area Microelectronics at the University of Stuttgart (Rector Wolfram Ressel ) and Joachim Speidel was appointed professor for communications and head of the institute of the same name in 1992 as successor to Wolfgang Kaiser .

Memberships and honors (selection)

  • Chairman and Advisory Board member of the Heinrich Hertz Institute ,
  • Participation in several committees of the Information Technology Society (ITG) and board member,
  • Participation on behalf of the BMBF in 1985 on a report on the future of information technology,
  • Participation in the American Association of Electrical Engineers IEEE , which in 1990 appointed him to a committee that compiled the most important areas of work in the field of "Circuits and Systems" for the US government,
  • Fellow of the IEEE and the Society of Information Displays,
  • Expert in the Esprit program of the European Union for the development of flat screens,
  • Member of the New York Academy of Sciences,
  • Member of other national and international specialist societies,
  • Carrier of the Federal Cross of Merit 1st class.
  • 2016: VDE honor ring

Publications (selection)

  • Equivalent circuits and topology of the circuits with the least effort. Dissertation, TH Stuttgart, Faculty of Mechanical Engineering 1962.
  • The realization of the chain matrix of the general passive quadrupole by a circuit with the fewest number of parts. Habilitation thesis, TH Stuttgart, Faculty of Mechanical Engineering 1967.
  • Building hybrid microcircuits. Introduction to thin and thick film technology. Springer: Berlin, Heidelberg, New York 1977, ISBN 3-540-08289-1 .
  • with co-authors: Miniaturized clock circuit using tantalum thin-film technology. (BMFT project). Eggenstein-Leopoldshafen: Specialized Information Center for Energy, Physics, Mathematics; Karlsruhe 1984.
  • with co-authors: Thin-film circuits for controlling flat screens. (BMFT project). Eggenstein-Leopoldshafen: Specialized Information Center for Energy, Physics, Mathematics; Karlsruhe 1984.
  • with Christian Borgwardt and Traugott Kallfass: Development of new thin and thick film layers for moisture measurement. (BMFT project). Eggenstein-Leopoldshafen: Specialized Information Center for Energy, Physics, Mathematics; Karlsruhe 1985.
  • Ernst Lüder (general chair): EuroDisplay '99. Proceedings, ISBN 3-8007-2478-2 .
  • Ernst Lueder: Liquid Crystal Displays. Addressing Schemes and Electro-Optical Effects. John Wiley & Sons, New York 2010, 2nd edition, ISBN 978-0-470-74519-9 .
  • Ernst Lueder: 3D displays. John Wiley & Sons, New York 2011, ISBN 978-1-11-999151-9 .

Individual evidence

  1. Ernst Lüder. In: Kürschner's German Scholars Calendar Online. De Gruyter. Retrieved April 23, 2016.
  2. ^ Description of the Institute for Signal Processing and Systems Theory at the University of Stuttgart. http://www.iss.uni-stuttgart.de/institut/geschichte/
  3. ^ Description of the Institute for Large Area Microelectronics at the University of Stuttgart. http://www.igm.uni-stuttgart.de/institut/geschichte.html
  4. Ursula Zitzler: "Screen Pope" Ernst Lüder - Festive Colloquium for Retirement. Press release from the Department of Communication at the University of Stuttgart on April 15, 1999.
  5. ^ Ceremonial colloquium for the 75th birthday of Prof. Ernst Lüder: scientist, educator, entrepreneur Stuttgarter Uni-Kurier No. 100, 2.2007, press office of the University of Stuttgart. http://www.uni-stuttgart.de/hkom/publikationen/uni-kurier/uk100/index.html
  6. VDE ring of honor . Retrieved October 20, 2017.