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Must
Read Papers:
1.51-GHz with Q
>10,000 Even in Air!
A result of
purposely impedance-mismatching a polydiamond disk with its polysilicon stem.
1.2-GHz with Q = 14,600!
Who says diamond is needed to get Q
>10,000 at GHz frequencies? With the right "hollow-disk" ring
design, polysilicon can do even better than diamond.
60-MHz Wine-Glass Disk Oscillator Makes
the GSM Reference Oscillator Spec!
Higher power
handling and a Q >50,000 crucial in making the spec.
Arraying for Impedance <480W at 72MHz!
Mechanically
coupled resonator arrays automatically align resonator frequencies to allow
output summation for low impedance and higher power handling.
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VHF
Free-Free Beam: First Resonator to
Reach
92-MHz With Q >7,000 (1999)
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The
Latest Award
Winning Papers:
Solid-Gap Vibrating
Micromechanical Resonator Wins
Best Paper Award at the 2005 IEEE Int. Frequency Control Symposium!
Congratulations
to Yu-Wei Lin for winning the Best Frequency Control Paper Award at the 2005
IEEE Int. Frequency Control Symposium.
Chip-Scale Atomic
Clock Overview Paper Wins the Jack Raper Award at the
2005 IEEE Int. Solid-State Circuits Conference!
Congratulations
to all those in the CSAC program (which Prof. Nguyen ran while at DARPA),
especially John Kitching from NIST, who co-authored this paper.
Vibrating RF MEMS Wins
Best Invited Paper Award at the 2004 IEEE Custom Integrated Circuits
Conference!
Read this for an
overview on vibrating RF MEMS.
Resonator Array
Oscillator Wins 2004 UFFC
Symposium Best Frequency Control Paper Award!
Congratulations
to Seungbae Lee for winning the Best Frequency Control Paper Award at the 2004
IEEE Ultrasonics, Ferroelectrics, and Frequency Control 50th Anniv. Joint
Conf.
Ext. Wine-Glass
Resonator Work Wins 2003 IEDM Best Paper Award!
Congratulations
to Yuan Xie for winning the 2003 Int. Electron Devices Meeting Roger A. Haken
Best Student Paper Award.
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First
Demonstration of Localized Annealing for Drift Reduction (1999)
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1999
Conference Publications: |
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C.
T.-C. Nguyen, “Micromechanical
components for miniaturized low-power communications (invited),” Proceedings, 1999 IEEE MTT-S International Microwave Symposium RF
MEMS Workshop (on
Microelectromechanical Devices for RF Systems: Their Construction,
Reliability, and Application), Anaheim,
California,
June 18, 1999, pp. 48-77.
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A.-C.
Wong, J. R. Clark, and C. T.-C. Nguyen, “Anneal-activated,
tunable, 65MHz
micromechanical filters,” Digest
of Technical Papers, 10th International Conference on
Solid-State Sensors and Actuators, Sendai, Japan, June 7-10, 1999,
pp. 1390-1393.
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W.-T.
Hsu, S. Lee, and C. T.-C. Nguyen, “In
situ localized annealing for contamination resistance and enhanced
stability in nickel micromechanical resonators,” Digest of Technical Papers,
10th International Conference on Solid-State Sensors and
Actuators, Sendai,
Japan, June
7-10, 1999, pp. 932-935.
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J.
Cao and C. T.-C. Nguyen, “Drive
amplitude dependence
of micromechanical resonator series motional resistance,”
Digest of Technical Papers, 10th
International Conference on Solid-State Sensors and Actuators, Sendai,
Japan,
June 7-10, 1999, pp. 1826-1829.
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V.
L. Rabinovich, M. Deshpande, J. R. Gilbert, M.-A. Getillat, N. de
Rooij, J. R. Clark, and C. T.-C. Nguyen, “Prediction of mode
frequency shifts due to electrostatic bias,” Digest
of Technical Papers, 10th International Conference on
Solid-State Sensors and Actuators, Sendai,
Japan,
June 7-10, 1999, pp. 442-445.
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T.
C. Nolan, C. T.-C. Nguyen, and W. E. Stark, “Direct
down-conversion of passband signals using MEMS filters and
sub-sampling,” to be published in the Proceedings
of the 1999 IEEE Vehicular Technology Conference, Amsterdam, The
Netherlands, Sept. 19-22, 1999.
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C.
T.-C. Nguyen, “Micromechanical
filters for miniaturized
low-power communications (invited),” Proceedings
of SPIE: Smart Structures and Materials (Smart Electronics and
MEMS), Newport Beach, California,
March 1-5, 1999, pp. 55-66.
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C.
T.-C. Nguyen, A.-C. Wong, and H. Ding, “Tunable,
switchable, high-Q
VHF microelectromechanical bandpass filters,”
Digest of Technical Papers, 1999
IEEE International Solid-State Circuits Conference, San Francisco,
California, Feb. 15-17, 1999, pp. 78-79, 448.
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K.
Wang, Y. Yu, A.-C. Wong, and C. T.-C. Nguyen, “VHF free-free beam high-Q micromechanical resonators,”
Technical Digest, 12th International IEEE Micro Electro Mechanical
Systems Conference, Orlando, Florida, Jan. 17-21, 1999, pp. 453-458.
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