Tutorial: EMC & Signal Integrity using SPICE, page 44 - IEEE EMC ...

papers and presentations on EMC and signal
integrity related subjects in the US, in
Europe and in Asia. He was a co-recipient
of the best paper award at the 1996 IEEE
EMC Symposium. He is a past IEEE EMC
Society Distinguished Lecturer and currently
serves on the IEEE EMC Society
Respected Speakers Bureau. He has also
served on the IEEE EMC Society TC-9
Computational Electromagnetics committee,
the IEEE EMC Society TC-10 Signal
Integrity committee, and the SAE EMC
Modeling Task Force committee. On March
9, Dr. Sergiu Radu of Sun Microsystems, a
2009-2010 IEEE EMC Society Distinguished
Lecturer, was the guest speaker for
the Santa Clara Valley Chapter. After networking
time and a light dinner, Dr. Radu
gave a very informative lecture entitled,
“An Overview of Chip Level EMC Problems.”
The CPUs and the VLSI chips are
the primary sources of electromagnetic
noise in all electronic equipment. Reducing
electro magnetic noise at the source
level is usually the best and the most economical
solution. The presentation discussed
typical interference mechanisms
associated with CPU/VLSI, as well as miti-
gation methods at the die-level and package
level. Among the aspects discussed
were some power distribution issues, ondie
decoupling, package capacitors, routing
aspects, the impact of back-bias and forward-bias,
and the impact of die-shrinks on
the EMI performance of the VLSI chips.
Dr. Sergiu Radu is currently Principal
Engineer at Sun Microsystems, leading the
EMC design group in Menlo Park, Califor-
nia. His role at Sun includes the development
and implementation of architectural
frameworks for EMC design through
design guidelines and best practices, and to
provide forward looking solutions, root
cause analysis of significant EMC problems,
design methodologies involving software
simulations and better prediction
techniques. Sergiu Radu received a M.S.
and a Ph.D. in Electrical Engineering
(Electronics) from the Technical University
of Iasi, Romania, and until 1996 he was an
Associate Professor at the same university,
involved in electromagnetic compatibility
teaching and research. From 1996 until
1998 he was a Visiting Scholar, as part of
the Electromagnetic Compatibility Laboratory,
at the University of Missouri-Rolla,
currently Missouri University of Science
and Technology. In 1998 he joined the
EMC engineering group at Sun Microsystems.
Sergiu holds seven US patents for
EMI reduction techniques in electronic
systems and has many papers published in
research journals, symposia, and magazines.
He is a reviewer for IEEE Transactions on
EMC. He is also a Distinguished Lecturer
for the IEEE EMC Society.
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Photo by Jerry ramie
Dr. Sergiu Radu of Sun Microsystems
shed light on the topic on Chip Level
EMC for the Santa Clara Valley Chapter.
13