Synthesis of Multi-Phase Particles and Their Use as Functional Fillers, by Mark W. Ellsworth



Dinner Lecture

Tuesday July 22
Michael's Restaurant
Mountain View

"Synthesis of Multi-Phase Particles
and Their Use as Functional Fillers"

Mark W. Ellsworth
Director of Research
Tyco Electronics - Technology Group


Advances in techniques for preparing polymer, ceramic,
and metal powders have resulted in the availability of
a wide variety of materials for incorporation into polymer
matrices to produce hybrid composites utilizing conventional
processing techniques such as extrusion and injection molding.
Commercially available powders and colloidal solutions can
now be used to produce composites with unique physical,
mechanical, electrical, optical, and biological properties.
Our research has been focused on developing multi-phase
particles where the particle itself provides a unique
response to an external stimulus. A foamable composite
with high expansion ratio and good dimensional stability
has been prepared using expandable polymer microspheres.
We have also developed techniques for producing spherical,
free-flowing doped zinc oxide varistor powder for incorporation
into polymer matrices, resulting in hybrid composites which
display voltage non-linear properties similar to solid
ceramic varistors. In both of these cases, the functional
filler provides the advantage of being able to utilize many
different polymer matricies, processing conditions and form
factors to produce hybrid composites.

Mark W. Ellsworth is the Director of Research in the
Technology Group of Tyco Electronics located in Menlo Park.
He received his B.S. in Chemistry in 1989 from the
University of Illinois, Urbana and his Ph.D. in Chemistry
in 1993 from the University of California, Berkeley. He
joined Raychem Corporation in 1993 and became part of Tyco
Electronics in 1999 after the acquisition of Raychem by Tyco.
His general research interests are hybrid composites,
polymer synthesis, catalysis, and ceramics chemistry.



DATE: Tuesday July 22

Location: Michael's at Shoreline Park, Mountain View

Timing: 6 PM social hour
7 PM dinner
8 PM lecture

Cost: $30
half price students, retired, unemployed
free for just the lecture at 8PM
(but please let us know for headcount)

Deadline for registration:
5 PM Friday July 18

Please register on the web site

Or, contact
April Baugher

You should receive confirmation of your registration; if not,
please contact us again.


Dinner choices:
chicken sauteed with sun dried tomatoes
grilled vegetables with rice

Note that we must request that you be liable for your
registration fee if you register and do not attend;
cancellation is allowed up to the registration deadline.


Restaurant's web page directions

From 101 in Mountain View, take the Shoreline Boulevard
Exit, turning toward the bay. Drive past the Shoreline
Amphitheater and go straight ahead, entering into
Shoreline Park. After a mile or so inside the park,
a sign for Michael's will direct you to turn left into
the parking lot for Michael's.
Address: 2960 N Shoreline Blvd.
Restaurant phone: 650-962-1014
(do not call restaurant for reservations)


OTHER EVENTS of possible interest to the
GGPF audience:

JULY 2003

July 13-16, San Jose
SmallTalk 2003
"The Microfluidics, Microarrays and BioMEMS Conference"
Includes several short courses on microarrays, microfluidics,
microfabrication and simulations

July 14-16, San Francisco
July 16-18, San Jose
SEMICON West 2003
SF=wafer processing
SJ=final manufacturing
(note the "MEMS Pavillon" & conference)

July 15, Palo Alto
Free seminar on Drug Development, Sythesis, &
Delivery, sponsored by Accelrys, the software and
molecular modeling company.

July 15, Santa Clara
meeting of the NanoScience Exchange
"Sensors - Who's Getting Real?"
Presenters: Jonathan Epstein of Integrated
Nanosystems & Sia Ghazvini of Xagros

July 21, San Jose - note date change to new date.
"Flipchip for Optoelectronics and MEMS"
one-day Short Course at SJSU


Aug. 10-12, San Francisco
IEEE PhoPack(TM) 2003 -
Photonics Devices & Systems Packaging Symposium
& associated short course
Aug. 13-14, San Francisco
IEEE PhoMat 2003
Photonics Materials Reliability Symposium
Aug. 12-14, San Francisco
IEEE - Nano 2003 meeting

Aug. 23-25, San Francisco
California Separation Science Society (CaSSS) meeting
"CE in the Biotechnology and Pharmaceutical Industries
5th Symposium on the Practical Applications for the Analysis
of Proteins, Nucleotides and Small Molecules

Aug. 30 - Dec 20, SJSU campus
Saturday morning semester class on
"Thermal & Mechanical Requirements for
Microelectronics Packaging", Engr. 244
Instructor: Maurice Othieno, LSI Logic Corp.
For more information, contact Dr. Guna
Selvaduray of SJSU at


Sept. 16, Mountain View
one-day symposium by nanoSIG
NanoElectronics & Photonics Forum Conference
details to be announced

Sept. 17-19, Palo Alto
Integrated Nanosystems 2003: Design,
Synthesis, and Applications
Don't miss the tutorials listed for Sept. 17 at

Sept. 18, location tbd
ACS Santa Clara Valley Section dinner meeting
Dr. Ken Carter, IBM Almaden Research Center
speaks on a polymer material science topic.
Details to be announced; see

Sept. 20 & Sept. 27, San Mateo
Two-Day short course (sequential Saturdays)
"High Performance Separations of Biopolymers"
Sponsored by California Separations Science
Society, CaSSS (covers HPLC, SEC, etc.)

Sept. 23 - 25, San Jose
BIOPHEX, co-located with INTERPHEX
a bio/pharmaceutical meeting


Join the GGPF announcements list through the web page
or by replying to this announcement with your name and
preferred email address.

Send any suggestions for events that should be
mentioned in these announcements to

We are sorry but this event is not yet open for registration.

You will be able to register starting