The Chemistry and Physics of Curing Polymers with Microwaves, Bob Hubbard


The Golden Gate Polymer Forum dinner lecture this month will be on an interesting new technology, Variable Frequency Microwave processing, which opens up new options for heating or curing polymeric systems (including metal-containing objects such as wafers, circuit boards, etc.).

This month's talk is a joint meeting with the Golden Gate Section of the SPE (Society of Plastics Engineers).

Monday, March 21 - GGPF Monthly Dinner Lecture

"The Chemistry and Physics of Curing Polymers with Microwaves"

Bob Hubbard
Director of Technology Development
Lambda Technologies


The thermal cure of polyimides in excess of 350°C for redistribution circuitry is a common process for wafer level packaging. Variable frequency microwave (VFM) curing at less than 200°C has been shown to provide an equivalent cure method for some polyimides. The mechanism of microwave cure is discussed and compared with data taken from polyimides having varying backbone rigidity and dipole strengths.
Thermodynamics and the dielectric loss mechanism of microwave excitation will be discussed with respect to specific structural features of polyimides, polybenzoxazoles and bicyclobutene films. Use of these comparisons in designing more microwave-efficient polymers might provide even lower curing temperatures for the packaging of sensitive devices or other applications.

Speaker Background:

Bob Hubbard received his Ph.D. in Organic Chemistry and has been applying chemical leverage to the research and development of display devices, conducting polymers and electronic packaging for the last two dozen years. Bob has five patents, and publications in the fields of aerospace electronics, display devices, medical devices and test equipment. He is currently Director of Technology Development for Lambda Technologies and plays golf in Mesa, Arizona.



DATE: Monday, March 21

Location: Michael's at Shoreline
(see directions below)

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

Cost: $30 with advance registration
half price students, retired, unemployed
free for just the lecture at 8PM
(but please let us know for headcount)
$35 after registration deadline

PLEASE NOTE: we accept cash or checks, but are unable to
accept payment by credit card at this time.

Deadline for registration: 5 PM Friday March 18

Please register on the web site

Or, contact:
Clayton Henderson

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


Dinner choices (pick one when registering):
Broiled Salmon
Chicken Florentine
Grilled Vegetable Brochette with Wild 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 on the left hand side 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 Restaurant.
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:

FEB. 2005

Feb. 27-March 4, San Jose
SPIE International Symposium
Microlithography 2005

MARCH 2005

March 15-17, San Francisco
SEMITHERM - Semiconductor Thermal Measurement,
Modeling, and Management Symposium.

March 19, Santa Clara
ASME-sponsored one-day class
"Non-linear Finite Element Analysis"

March 21-23, Santa Clara
AVS Sixth International Conference on Microelectronics and Interfaces
March 21-25, Santa Clara
AVS has scheduled 18 short courses in conjuction with the meeting; see

March 24, Palo Alto
ACS dinner lecture
"Electroreception in Elasmobranches"
Prof. Brandon Brown, USF

March 28-April 1, San Francisco
Materials Research Society meeting
Many sessions of interest; see especially
organic thin film electronics
micro- and nanosystems / materials and devices
polymer gels for emerging technologies
plus a workshop after on the physics of switching in
in solids

APRIL 2005

April 5 - 6, San Francisco
EmTech - Emerging Technologies for Drug Dscovery Conference & Exhibition

Monterey, April 5-7
Scanning 2005
(Scanning microscopy conference)

April 6, Sunnyvale
AVS CMP Users Group afternoon meeting
"Emerging Planarization Technologies ..."

April 12, Berkeley
NorCal AIChE Annual one-day Symposium
"Manufacturing 2010: Process Trends and Tools"

April 21, Sunnyvale
Silicon Valley ESD Society's annual ESDiscovery event
(classes, tutorials, etc.)

April 22, San Jose
SPE Golden Gate Section 25th Annual Tech Fair


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