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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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Introduction
of Localized Annealing (1997)
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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
3-Resonator Micromechanical Filter (1997)
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1997
Conference Publications: |
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K.
Wang, F. D. Bannon III, J. R. Clark, and C. T.-C. Nguyen, “Q-enhancement
of micromechanical
filters via low-velocity spring coupling”
Proceedings, 1997 IEEE International
Ultrasonics Symposium, Toronto, Ontario, Canada, Oct. 5-8, 1997, pp.
323-327.
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K.
Wang, A.-C. Wong, W.-T. Hsu, and C. T.-C. Nguyen, “Frequency-trimming
and Q-factor enhancement of micromechanical resonators via localized
filament annealing,” Digest
of Technical Papers, 1997 International Conference on Solid-State Sensors
and Actuators,
Chicago, Illinois, June 16-19, 1997, pp. 109-112.
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J.
R. Clark, A.-C. Wong, and C. T.-C. Nguyen, “Parallel-resonator
HF Micromechanical Bandpass Filters,”
Digest of Technical Papers, 1997
International Conference on Solid-State Sensors and Actuators,
Chicago, Illinois, June 16-19, 1997, pp. 1161-1164.
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C.
T.-C. Nguyen, “High-Q
micromechanical oscillators
and filters for communications (invited),”
Proceedings, 1997 IEEE International
Symposium on Circuits and Systems, Hong Kong, June
9-12, 1997, pp. 2825-2828.
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K.
Wang and C. T.-C. Nguyen, “High-order
micromechanical
electronic filters,” Proceedings,
1997 IEEE International Micro Electro Mechanical Systems Workshop,
Nagoya, Japan, Jan. 26-30, 1997, pp. 25-30.
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