Philip Stephanou, Ph.D.
Co-Founder, Harmonic Devices, Inc.
Tuesday, Feb 9, 2010
Allen 101X 4:00–5:00pm
Abstract:
Electromechanical frequency control components such as quartz crystals
and surface or bulk acoustic wave (SAW or BAW) devices are ubiquitous as
signal processing elements in electronic communication, computing and
information technology systems. Billions of these components are
manufactured annually to sate the global needs of the commercial,
industrial, and defense sectors. Contemporary demands for low-cost,
highly-integrated portable wireless communication solutions provide the
greatest incentive in terms of potential technological, economic and
social impact to continue innovating passive electro-acoustic devices
such as oscillator crystals and bandpass filters. This talk will review
the evolution of and current state-of-the-art in MEMS resonators and
introduce Harmonic Devices Inc., a startup company founded to
commercialize thin-film piezoelectric RF MEMS technology.
Biography:
Dr. Philip Stephanou is an expert in the area of piezoelectric MEMS
design, fabrication and testing. Philip holds a Ph.D. in Mechanical
Engineering from the University of California at Berkeley where, as a
member of the Berkeley Sensor and Actuator Center (BSAC), he co-invented
a new class of thin-film aluminum nitride (AlN) based electromechanical
resonators and filters. He has developed a variety of AlN MEMS resonator
topologies and received a best paper award at the 2006 IEEE Ultrasonics
Symposium for developing the first thin-film, lithography-defined,
fundamental mode MEMS resonators to break the GHz barrier. In 2005,
Philip co-founded Harmonic Devices, Inc. (HDI) in order to commercialize
multi-frequency bandpass filter solutions based on the AlN contour mode
resonator technology. HDI has received funding from NASA, DARPA and NSF
as well as commercial entities. Philip co-founded Verreon, Inc. in 2009.
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