Track 2: Microelectronics:
Abstracts and Biographies
Track 2, Session 1: 8:30-9:30am
Noise in Semiconductor
Devices
by
Dr. Zeynep Celik-Butler,
SMU
Abstract: As the devices scale down, even though the
absolute noise magnitude gets smaller, since the voltages also scale down,
the signal-to-noise ratio decreases. Noise models developed for large area
devices based on the large-number-electron averaging theories break down.
In addition, in sub-micron devices, as the device dimensions approach electron
mean-free path, quantum effects start to play an important role. Since
noise has important implications on the reliability and performance of
the device, beyond a certain limit of scaling down, with existing models,
it becomes impossible to predict the noise performance of an individual
transistor, specifically a MOSFET. The lack of accurate models leads the
process and circuit designer either to adapt large area-transistor models
with high errors or to use a trial-and-error method leading to significant
waste of valuable time. As the Semiconductor Research Corporation has correctly
concluded last year, there is an urgent need to measure, analyze, and model
the noise characteristics of next generation sub-micron transistors. This
talk will focus on the research activities currently underway at SMU on
characterization and modeling of sub-micron MOSFET noise behavior.
Biography: Zeynep Çelik-Butler is the Assistant
Dean of Graduate Studies and Research at the School of Engineering and
Applied Science and an associate professor of electrical engineering at
Southern Methodist University. She received the B.S. degrees in electrical
engineering and physics from Bogaziçi University, Istanbul, Turkey,
in 1982. She received the M.S. and Ph.D. degrees in electrical engineering
in 1984 and 1987, respectively, from the University of Rochester. She was
an IBM Predoctoral Fellow from 1983 to 1984, and an Eastman Kodak Predoctoral
Fellow from 1985 to 1987. She joined the Department of Electrical Engineering
at the Southern Methodist University in 1987. Dr. Çelik-Butler was
the holder of J. Lindsay Embrey Trustee Assistant Professorship from 1990
to 1993. Her awards include the Outstanding Graduate EE Faculty Award (1996,
1997), the IEEE Dallas Section - Electron Devices Society Outstanding Service
Award (1995, 1997), the IEEE Electron Devices Service Recognition Award
for 1994-1996, and the Sigma Xi Research award for 1997. She served in
various technical committees including 1988, 1989 IEDM's and 1989 - 1992
Annual Symposia on Electronic Materials, Processing and Characterization.
Her research interests include infrared detectors, noise in semiconductor
and superconductor devices, and high Tc superconductivity.
Dr. Çelik -Butler's work on noise in solid-state devices in the
past 10 years has resulted in over 50 publications and $1.4M of grants
and contracts mostly from the National Science Foundation, Texas Higher
Education Coordinating Board, Texas Instruments, and the Army Research
Office. Dr. Çelik-Butler is a member of IEEE, Eta Kappa Nu, the
American Physical Society, and American Society for Engineering Education.
Probe of Nanoscale
Science and Technology Applications
by
Edward L. Safford III,
Lockheed Martin Tactical Aircraft Systems
Abstract: Science fact or science fiction, what is Nanotechnology?
What are its applications? Why is it different? Why should I care? These
and other questions are answered in this nanotechnology tutorial. Starting
with some key terms and fundamental concepts, a foundation for the subject
is developed. This is followed by an exposure to historical perspective,
current initiatives, and future challenges.
This tutorial can help those interested obtain a better understanding
of how this new technology can be expected to change their world as we
enter the 21st century. It comes complete with a great movie, and a web
tour of the more important nanotechnology sites.
Biography: Mr. Safford performs special assignments for
the engineering department of Lockheed Martin's Tactical Aircraft Systems
company (LMTAS). Recent activities include a technology probe, coordination
of LMTAS' interests in MicroElectroMechanical Systems (MEMS), and software
product development for U.S. and foreign military aircraft programs. Prior
to joining LMTAS, he led nineteen technology projects which varied from
development of a FORTRAN compiler to high- pressure- separator recovery
calculations for multiple-tower solid-adsorbent units.
Safford has a BS in Computer Science and an MS in Applied Science.
He has presented technical papers at two Digital Avionic Systems Conferences
and a General Dynamics Software Technology Conference, and been the invited
speaker at several IEEE and Texas Engineering Society functions. He is
a Senior Member of the IEEE and a Senior Associate of the Foresight Institute.
He is also a member of the Institute of Certified Professional Managers
and is PMP certified by the Project Management Institute. Some of his projects
have been written up in the Consulting Engineer and in Architectural and
Engineering News.
Abstract: In the present and future engineering environments,
we are, and will continue to encounter the challenge to address growing
technological complexity while reducing costs. Re-sponses to this situation
include shrinking design cycles to achieve shorter time-to-market with
design goals for smaller, less massive and more reliable products. Innovative
efforts in micro- and nano-scale technologies are on the leading edge of
this progress. Dr. Kolesar will introduce the foundations of MEMS technology,
including fundamental fabrication principles, materials, and design tools,
leading to a discussion of the principal market areas for inserting MEMS
technology and several recent commercial successes. Additionally, the significant
results achieved with the TCU MEMS devices will be ad-dressed. The forward-thinking
engineer will catch insights for his own possibilities and grasp what is
required to become an active participant with this new technology.
Biography: Edward S. Kolesar, Jr. graduated magna cum
laude with the Bachelor of Science degree in Electrical Engineering from
The University of Akron, Akron, Ohio in June 1973. A commission as a second
lieutenant in The United States Air Force was received in July 1973. During
the next four years he was a technical intelligence analyst with the Electronic
Systems Division, Hanscom Air Force Base, Boston, Massachusetts. In June
1977 he entered the Graduate School of the Air Force Institute of Technology,
Wright-Patterson Air Force Base, Dayton, Ohio, and was awarded the degree
of Master of Science in Electrical Engineering in December 1978. In January
1979, he joined the staff of the USAF School of Aerospace Medicine, Crew
Technology Division, Brooks Air Force Base, San Antonio, Texas, as a senior
electrical engineer. In this role he assumed the responsibility for initiating
an in-house and external research and development program concerned with
applying solid-state technology to detect environmen- tally sensitive organophosphorus
compounds. In June 1982, he entered the Graduate School of The University
of Texas at Austin and com-pleted the Ph.D. require-ments in May 1985.
Upon completion of the Ph.D. program, he joined the faculty in the Department
of Electrical and Computer Engineering at the Air Force Institute of Technology,
Wright-Patterson Air Force Base, Dayton, Ohio, and he was awarded the rank
of full professor in 1991. Upon retirement from the USAF in 1993, he joined
the faculty in the Department of Engineering at Texas Christian University,
Fort Worth, TX, where he is the W. A. Moncrief Professor of Engineering.
He has served as a technical consultant with The Johns Hopkins University,
School of Hygiene and Public Health, Division of Environmental Health Engineering,
Baltimore, Maryland; the USAF Scientific Advisory Board, Washington, D.C.;
the ARDEX Corporation, Austin, Texas; the EG&G Mound Applied Technologies
Laboratory, Miamisburg, Ohio, Technispan Llc, Lutherville, MD, and the
Lockheed Martin Corporation, Fort Worth, TX. He holds ten U.S. Patents,
and is the author of over 100 refereed journal articles and technical reports.
He is a registered professional engineer; a member of Tau Beta Pi, Eta
Kappa Nu, Omicron Delta Kappa, and Sigma Xi; and a senior member of the
Institute of Electrical and Electronics Engineers. His current research
interests include organic semiconductors, the development of integrated
circuit microsensors, silicon micromachining techniques applied to laser
absorbers, advanced multi-chip module packaging technologies, and solid-state
gas chromatography systems.
Dr. Lakshman S. Tamil,
Broadband Communications Laboratory, UTD
Abstract: Photonic components and systems find applications
in generation, transmission and processing of microwave signals. This talk
will review the applications of photonics to microwaves in the area of
antenna remoting, smart antennas and CATV.
Biography: Dr. Lakshman S. Tamil is an Associate Professor
in electrical engineering at the University of Texas at Dallas. He is currently
a senior scientist at the Alcatel Corporate Research Center in Richardson
in the area of all-optical networks.
Dr. Tamil received his Ph.D. in electrical in 1988 from the University
of Rhode Island, Kingston, RI. He has authored/co-authored more than seventy
articles in scholarly journals and conferences. He is a member of IEEE
and OSA and an elected member of the Electromagnetics Academy and URSI
Commission B and D. He is also an associate editor for Radio Science (a
joint publication of Geophysical Union of America and International Radio
Science Union).
Nonlinear Optical
Devices for Frequency Conversion and All-Optical Switching
by
Dr. Theresa A. Maldonado,
UTA
Abstract: The role of nonlinear optics in enhancing optical
technologies continues to expand. In particular, second order processes
have been developed for frequency conversion, optical switching, parametric
oscillation and amplification, and other applications. This presentation
will focus on second harmonic generation (SHG) and all-optical switching.
For SHG, the interest is on the amount of fundamental power that is converted
to the second harmonic frequency, a process which requires phase-matching
between these two waves. All-optical switching requires a nonlinear phase
shift of the fundamental wave. Cascading is one process by which to produce
the required nonlinear phase shift. Energy is converted back-and-forth
between the fundamental and second harmonic waves, typically away from
the phase-match condition.
First, a basic overview of second order nonlinear optical processes
will be given, followed by current research at UT Arlington. Nonlinear
waveguides for frequency conversion are under development based on an anomalous
dispersion phase-matching technique in organic polymers. The idea of cascading
is being implemented in a new counterpropagating quasi-phase-matching configuration.
This structure can be used for efficient frequency conversion or for producing
nonlinear phase shifts by adjusting the physical design parameters.
Biography: Theresa A. Maldonado (S'80-M'82) received
the B.E.E. (with highest honors), M.S.E.E., and Ph.D. degrees in 1981,
1982, and 1990, respectively, all from the Georgia Institute of Technology.
From 1981 to 1986, she was a Member of Technical Staff at AT&T Bell
Laboratories. She is currently an Associate Professor at The University
of Texas at Arlington. Dr. Maldonado is a 1991-96 National Science Foundation
Presidential Young Investigator. In 1992 she received the UT Arlington
College of Engineering Halliburton Award for Teaching Excellence, and in
1993 she received the UT Arlington College of Engineering Award for Outstanding
Young Faculty. She is a member of the Optical Society of America, SPIE,
Eta Kappa Nu, Tau Beta Pi, Sigma Xi, and the Society of Hispanic Professional
Engineers. She is a registered Professional Engineer in Texas.
Fiber Optic and Integrated
Optic Device Research at Texas A&M
by
Dr. Henry F. Taylor,
Texas A&M
Abstract: A technique for making internal mirrors in
optical fibers forms the basis for a new class of sensors with the fiber
Fabry Perot interferometer (FFPI) as the active element. In extensive field
tests, these sensors have been used to measure gas pressure in internal
combustion engines, liquid pressure in pumps, and strain in civil structures.
The fiber optic sensors have shown an unprecedented combination of high
sensitivity, ability to endure extreme temperatures, and immunity from
electromagnetic interference.
Integrated optics is concerned with the development of thin-film components
for performing functions such as modulation, switching, and multiplexing
of guided light beams. Much of the research is oriented towards applications
in optical fiber communications, a field in which technology is evolving
rapidly to keep pace with seemingly insatiable demands for bandwidth. We
are exploring new materials and fabrication techniques for integrated optical
waveguides as well as the demonstration of new device concepts; e. g.,
tunable add-drop filters for swavelength division multiplexing.
Biography: Henry F. Taylor was born in Ft. Worth, Texas,
on Sept. 27, 1940. He received the B.A., M.A., and Ph.D. degrees in Physics
from Rice University in 1962, 1965, and 1967, respectively. Prior to joining
the Electrical Engineering faculty at Texas A&M University in 1985,
he was employed at the Naval Ocean Systems Center in San Diego, CA, by
Rockwell International in Thousand Oaks, CA, and by the Naval Research
Laboratory in Washington, DC. Since 1988 he has held the Irma Runyon Chair
in Electrical Engineering. Since 1970 his principal research interests
have been in the fields of fiber optics, integrated optics, and diode laser
applications. He has authored more than 250 journal articles and conference
presentations and holds 33 U.S. patents. He is a Fellow of the IEEE and
of OSA, a Life Member of the American Society of Naval Engineers, and a
Member of the American Physical Society.