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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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1.156-GHz
Self-Aligned Vibrating Micromechanical Disk Resonator (TUFFC, Dec. 2004)
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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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60-MHz
Wine-Glass Disk Oscillator Nearly Makes
the
GSM Reference Oscillator Phase Noise Spec
(JSSC,
Dec. 2004)
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Micromechanical
Mixer-Filters (Mixlers)
(JMEMS,
Feb. 2004)
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IEEE Journal Publications: |
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C.
T.-C. Nguyen, MEMS
technology for timing and frequency control, IEEE
Trans. Ultrason., Ferroelect., Freq. Contr.,
vol. 54, no. 2, pp. 251-270, Feb. 2007. |
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M.
Demirci and C. T.-C. Nguyen, Mechanically corner-coupled square
microresonator array for reduced series motional resistance, IEEE/ASME
J. Microelectromech. Syst., vol. 15, no. 6, pp. 1419-1436, Dec.
2006. |
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J.
R. Clark, W.-T.
Hsu, M. A.
Abdelmoneum, and C. T.-C. Nguyen, High-Q
UHF micromechanical radial-contour mode disk resonators, IEEE/ASME
J. Microelectromech. Syst., vol. 14, no. 6, pp. 1298-1310, Dec.
2005. |
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Y.-W.
Lin, S. Lee,
S.-S. Li, Y.
Xie, Z. Ren, C. T.-C. Nguyen, Series-resonant
VHF micromechanical resonator reference oscillators, IEEE
J. Solid-State Circuits, vol. 39, no. 12, pp. 2477-2491, Dec.
2004. |
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J.
Wang, Z. Ren, and C. T.-C. Nguyen, 1.156-GHz self-aligned
vibrating micromechanical disk resonator, IEEE Trans.
Ultrason., Ferroelect., Freq. Contr., vol. 51, no. 12, pp.
1607-1628, Dec. 2004. |
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A.-C.
Wong and C. T.-C. Nguyen, Micromechanical
mixer-filters (mixlers), IEEE/ASME J.
Microelectromech. Syst., vol. 13, no. 1, pp. 100-112, Feb. 2004. |
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Y.-T.
Cheng, W.-T. Hsu, K. Najafi, C. T.-C. Nguyen, and L. Lin, Vacuum
packaging technology using localized aluminum/silicon-to-glass
bonding, IEEE/ASME J. Microelectromech. Syst.,
vol. 11, no. 5, pp. 556-565, Oct. 2002. |
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K.
Wang, A.-C.
Wong, and C. T.-C. Nguyen, VHF
free-free beam high-Q micromechanical resonators, IEEE/ASME
J. Microelectromech. Syst., vol. 9, no. 3, pp. 347-360,
Sept. 2000. |
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F.
D. Bannon III, J.
R. Clark, and C. T.-C. Nguyen, High frequency
micromechanical filters, IEEE J. Solid-State Circuits,
vol. 35, no. 4, pp. 512-526, April 2000. |
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K.
Wang and C. T.-C. Nguyen, High-order medium frequency
micromechanical electronic filters, IEEE/ASME J.
Microelectromech. Syst., vol. 8, no. 4, pp. 534-557, Dec. 1999. |
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J.
W. Weigold, A.-C.
Wong, C. T.-C. Nguyen, and S. W. Pang, A
merged process for thick single crystal Si resonators and
conventional BiCMOS Circuitry, IEEE/ASME J.
Microelectromech. Syst., vol. 8, no. 3, pp. 221-228,
Sept. 1999. |
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C.
T.-C. Nguyen, Frequency-selective MEMS for miniaturized low-power
communication devices (invited), IEEE Trans. Microwave
Theory Tech., vol. 47, no. 8, pp. 1486-1503, Aug. 1999. |
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C.
T.-C. Nguyen and R. T. Howe, An integrated CMOS micromechanical
resonator high-Q oscillator, IEEE J. Solid-State
Circuits, vol. 34, no. 4, pp. 440-455, April 1999. (16 pages) |
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C.
T.-C. Nguyen, L. P.B. Katehi, and G. M. Rebeiz, Micromachined
devices for wireless communications (invited), Proc. IEEE,
vol. 86, no. 8, pp. 1756-1768, Aug. 1998. |
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