[SI-LIST] : SSN and Power Plane Bounce, 8th February Presentation

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From: Hans Mellberg ([email protected])
Date: Wed Feb 02 2000 - 17:14:10 PST

The Santa Clara Valley Chapter of the EMC Society is
presenting on the 8th of February, 2000

Simultaneous Switch Noise and Power Plane Bounce, by
Larry Smith, Sun Microsystems.

Free admission, all welcome.

5:30-7:30 pm. social, food and refreshements (there is
a charge for food and refreshements)

7:30-8:30 pm. Presentation:
Simultaneous Switch Noise (SSN) has traditionally been
thought of as an inductance problem. Modern
electronic packages with solder bumps, solder balls
and power planes have very low inductance. The SSN
problem is shifting from an inductance problem to a
power plane bounce problem. Return current from
signal transmission lines can be used to explain and
account for power plane bounce. Noisy power planes
known to be the root cause of many SI and EMI
problems. The key to managing power plane bounce is
in managing return currents and power plane

Larry D Smith received the BSEE degree from Rose
Hulman Institute of Technology in 1975 and the MS
dregree in Material Science from the University of
Vermont in 1983. After joining IBM in 1978, he worked
in the areas of reliability, characterization, failure
analysis, power supply and analog curcuit design,
packaging and signal integrity at Sun Microsystems
since 1996. His current area of concentration is
design of power distribution systems and reduction of
simultaneous switch noise.

SCV IEEE EMC Society Dinner & Meeting Locations
The dinner and meeting will be held at the Silicon
Graphics’ Café Iris, Building 5, on 2025 Stierlin
Court in Mountain View, CA.

For additional information and directions visit our


Best Regards
Hans Mellberg
EMC Consultant
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