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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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First
Micromechanical Resonator Reference Oscillator to Meet GSM Phase Noise Specs
-- uses a Wine-Glass Disk Array (2005)
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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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Solid-Gap
Micromechanical Resonator Wins Best Paper Award at the 2005 IEEE International
Frequency Control Symposium (2005)
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Good
Linearity Measured for 160-MHz Wine-Glass
Disk
Resonators (2005)
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2005
Conference Publications: |
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J.
Wang, Y. Xie, and C. T.-C. Nguyen, Frequency
tolerance of RF micromechanical disk resonators in nanocrystalline diamond and
polysilicon structural materials, Technical Digest, IEEE Int.
Electron Devices Mtg., Washington, DC, Dec. 5-7, 2005,
pp. 291-294.
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Y.-W.
Lin, S.-S. Li, Z. Ren, and C. T.-C. Nguyen, Low
phase noise array-composite micromechanical wine-glass disk
oscillator, Technical Digest, IEEE Int. Electron
Devices Mtg., Washington, DC, Dec. 5-7, 2005,
pp. 287-290.
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Y.-W.
Lin, S.-S. Li, Z. Ren, and C. T.-C. Nguyen, Third-order
intermodulation distortion in capacitively-driven VHF
micromechanical resonators, Proceedings,
IEEE Int. Ultrasonics Symposium, Sept. 18-21, 2005, pp. 1592-1595.
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S.-S.
Li, Y.-W. Lin, Y. Xie, Z. Ren, and C. T.-C. Nguyen, Small
percent bandwidth design of a 431-MHz notch-coupled micromechanical
hollow-disk ring mixer-filter, Proceedings,
IEEE Int. Ultrasonics Symposium, Sept. 18-21, 2005, 1295-1298.
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S.-S.
Li, Y.-W. Lin, Y. Xie, Z. Ren, and C. T.-C. Nguyen, Charge-biased
vibrating micromechanical resonators, Proceedings,
IEEE Int. Ultrasonics Symposium,
Rotterdam, The Netherlands, Sept. 18-21, 2005, pp. 1596-1599.
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C.
T.-C. Nguyen, MEMS
for frequency control and timing (invited), Proceedings,
Joint IEEE Int. Frequency Control/Precision Time & Time Interval
Symposium, Vancouver, Canada, Aug.
29-31, 2005, pp. 1-11.
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Y.-W.
Lin, S.-S. Li, Z. Ren, and C. T.-C. Nguyen, Vibrating
micromechanical resonators with solid dielectric capacitive-transducer gaps, Proceedings,
Joint IEEE Int. Frequency Control/Precision Time & Time Interval
Symposium, Vancouver, Canada,
Aug. 29-31, 2005, pp. 128-134. (best paper award winner)
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S.-S.
Li, Y.-W. Lin, Z. Ren, and C. T.-C. Nguyen, Self-switching
vibrating micromechanical filter bank, Proceedings,
Joint IEEE Int. Frequency Control/Precision Time & Time Interval
Symposium,
Vancouver,
Canada, Aug. 29-31, 2005, pp. 135-141.
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C.
T.-C. Nguyen, RF
MEMS in wireless architectures (invited), Proceedings,
the 42nd Design Automation Conference, Anaheim,
California, June 13-17, 2005, pp. 416-420.
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C.
T.-C. Nguyen, Vibrating
RF MEMS technology: fuel for an integrated micromechanical circuit
revolution? (invited), Dig. of Tech. Papers,
the 13th
Int. Conf. on Solid-State Sensors & Actuators (Transducers05),
Seoul, Korea, June 5-9, 2005, pp. 243-246.
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M.
U. Demirci and C. T.-C. Nguyen, A
low impedance VHF micromechanical filter using coupled-array composite
resonators, Dig.
of Tech. Papers,
the 13th Int. Conf. on Solid-State Sensors
& Actuators (Transducers05), Seoul, Korea, June 5-9, 2005, pp.
2131-2134.
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C.
T.-C. Nguyen and J. Kitching, Towards
chip-scale atomic clocks, Digest of Technical Papers,
2005 IEEE Int. Solid-State Circuits Conference, San Francisco, California,
Feb. 6-9, 2005, pp. 84-85. (best paper award winner)
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M.
U. Demirci and C. T.-C. Nguyen, Single-resonator
fourth-order micromechanical disk filters, Proceedings,
18th Int. IEEE Micro Electro Mechanical Systems Conf., Miami,
Florida, Jan. 30 - Feb. 3, 2005, pp. 207-210.
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Y.
Xie, S.-S. Li, Y.-W.
Lin, Z. Ren, and C. T.-C. Nguyen, Spurious
mode suppression in UHF micromechanical extensional wine-glass ring
resonators,
Proceedings, 18th Int. IEEE Micro Electro Mechanical Systems Conf.,
Miami, Florida, Jan. 30 - Feb. 3, 2005, pp. 219-222.
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C.
T.-C. Nguyen, Vibrating
RF MEMS overview: applications to wireless communications,"
Proceedings of SPIE: Micromachining and Microfabrication Process
Technology, vol. 5715, Photonics West: MOEMS-MEMS 2005, San
Jose, California, Jan. 22-27, 2005, pp. 11-25.
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