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Semiconductor Thermal Measurement, Modeling, and Management Symposium.
(Click to download a PDF version of this page)
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The Significant Contributor "THERMI" Award
Thursday, March 20 9:20 a.m.
"Thermomechanical Challenges in Electronic Packaging"
Dereje Agonafer
Dr. Martin Luther King, Jr. Visiting Professor, Massachusetts Institute of Technology
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As the Electronic Packaging industry develops technologies for fabrication of smaller, faster, economical and reliable
products; thermal management and design play an important role. Following MooreEs Law, the number of transistors on a
single on “high density interconnect” chip has exceeded a billion. The feature size of the die, however, is not changing much
leading to a significant increase in power density. Coupled with the increased dynamic power, is the fast increasing static
power caused by leakage current (the gate oxide thickness for 90nm nodes is only 1.2nm). The push for multi-core processors
and high k dielectric is partly attributed to this leakage current. In this paper, the author will discuss the studies that he
and his graduate students in cooperation with numerous industry colleagues have conducted in the last ten years in the
area of thermo/mechanical challenges in electronics cooling/packaging. The discussion will include stacked packaging and
the related thermo/mechanical challenges; efforts to reduce thermal resistance due to highly non-uniform chip power distribution,
development of a best known method (BKM) for design of microprocessors based on power and thermal-architectural
co-design, thermal challenge related to leakage current, effect of weight of heat sink assembly on mechanical reliability of a wire bonded plastic
ball grid array package, bump electromigration and back end design rules, development of constitutive equations for lead free solders and some discussion
on data centers and related energy management.
Professor Agonafer received his PhD from Howard University and joined IBM. After 15 years at IBM, in 1999, Dr. Dereje Agonafer joined the
University of Texas at Arlington as Professor and Director of Electronics, MEMS, and Nanoelectronics Systems Packaging Center). He currently
advises 16 graduate students including 6 PhDEs. Since joining UTA in 1999, he has graduated 53 graduate students. The research areas cover a
broad area in electronic packaging including stacked packaging and the related thermo/mechanical challenges; efforts to reduce thermal resistance
due to highly non-uniform chip power distribution, development of a best known method (BKM) for design of microprocessors based on power and
thermal-architectural co-design, thermal challenge related to leakage current, effect of weight of heat sink assembly on mechanical reliability of a wire
bonded plastic ball grid array package, bump electromigration and back end design rules, development of constitutive equations for lead free solders
and thermal management of data centers. Professor Agonafer has published over 100 conference and journal papers and eight issued patents. In
April 1998, Professor Agonafer was the recipient of the “The University of Colorado School of Engineering Distinguished Engineering Alumni Award
(DEAA) in the category of Research and Invention.” In November 1998, he received “The Howard University Distinguished PhD Alumni Award.” Also,
in November 1998, he received “ASME K-16/EEPD Clock Award for Outstanding Contribution in Computer Aided Thermal Management of Electronic
Packages.” In 2002, he received ASME International Electronic and Photonic Packaging Division Highest Division Award for “Outstanding
Contributions to the Area of the Application of the Science and Engineering of Heat Transfer to Electronic and Photonic Packaging.” He is currently
the Editor in Chief of ASME Press Book Series in Electronic Packaging and Associate Editor of the Journal of Electronic Packaging. From July 1997
- July 2000, he served as Chair of the ASME K-16 Committee in the Heat Transfer Division. Professor Agonafer is a Fellow of the American Society
of Mechanical Engineers International and a Fellow of American Association for the Advancement of Science. He is currently on a leave of absence
as a Dr. Martin Luther King Visiting Professor at MIT in the Mechanical Engineering Department. |
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HARVEY ROSTEN AWARDS
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Ari Glezer
Woodruff Thermal Systems Chair,
Georgia Institute of Technology
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| Ari Glezer is the Woodruff Thermal Systems Chair and Professor in the George W. Woodruff School of Mechanical Engineering at Georgia Institute
of Technology. Professor GlezerEs research interests are in the area of manipulation and control of shear flows with particular emphasis on aerodynamic
flow-control, heat transfer processes and novel thermal management techniques, small-scale mixing and heat transfer processes in non-reacting
and reacting flows, and diffusion-convection flows in biological applications,. An important aspect of this work has been the development of novel
actuation technologies that have included electromechanical (e.g., piezoelectric), fluidic (synthetic jets) and chemical actuators. Professor Glezer
moved to the Woodruff School at the Georgia Institute of Technology in 1992 from the Aerospace and Mechanical Engineering Department at the
University of Arizona. Before he became a member of the faculty at the University of Arizona in 1984, he worked as a senior research engineer at
the Aircraft Division of Northrop Corporation, and was a Research Fellow in the Faculty of Engineering at Tel Aviv University. Professor Glezer
received his B.S. in Mechanical Engineering from Tel Aviv University in 1974 and his M.S. and Ph.D. in Aeronautics from the California Institute of
Technology in 1975 and 1981, respectively. Professor Glezer is a Fellow of the American Physical Society and of the American Society of Mechanical
Engineers. |
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Raghav Mahalingam
Co-founder, Nuventix, Inc.
(On right, shown with Ari Glezer) |
Raghav Mahalingam is a co-founder of Nuventix, Inc., a thermal management startup, where he is primarily involved in the research and development
of Synjet systems for cooling electronics. Prior to this, he was a Research Engineer at Georgia Tech, working on developing synthetic jets
into a viable thermal management technology. His research interests include fluid mechanics, heat transfer, acoustics and thermal management in
microelectronics. Dr. Mahalingam received his Ph.D. in Aerospace Engineering from Georgia Tech in 1999 and B. Tech in Aerospace Engineering
from IIT-Madras, India in 1994. He is a member of the International Microelectronics and Packaging Society. |
This website and all of its contents are copyright (c) 2008 SEMI-THERM and C/S Communications Inc. Last Update : 2/12/2008
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