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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.

 

1.47-GHz Extensional Wine-Glass Ring Resonator -- 2003 IEEE IEDM Roger A. Haken Best Paper Award Winner (2003)

 

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.

 

First Micromechanical Resonator Operating >1 GHz -- Polysilicon Micromechanical Radial-contour Mode Disk Resonator (2003)

 

First Wine-Glass Disk Resonator (2003)

5 Resonator Mechanically Coupled Array (2003)

  2003 Conference Publications:

Y.-W. Lin, S. Lee, Z. Ren, and C. T.-C. Nguyen, “Series-resonant micromechanical resonator oscillator,” Technical Digest, 2003 IEEE International Electron Devices Meeting, Washington, DC, Dec. 8-10, 2003, pp. 961-964.

Y. Xie, S.-S. Li, Y.-W. Lin, Z. Ren, and C. T.-C. Nguyen, “UHF micromechanical extensional wine-glass mode ring resonatorsTechnical Digest, 2003 IEEE International Electron Devices Meeting, Washington, DC, Dec. 8-10, 2003, pp. 953-956. (best paper award winner)

J. Wang, Z. Ren, and C. T.-C. Nguyen, “Self-aligned 1.14-GHz vibrating radial-mode disk resonators,” Dig. of Tech. Papers, the 12th Int. Conf. on Solid-State Sensors & Actuators (Transducers’03), Boston, Massa­chusetts, June 8-12, 2003, pp. 947-950.

M. U. Demirci, M. A. Abdelmoneum, and C. T.-C. Nguyen, “Mechanically corner-coupled square microresonator array for reduced series motional resistance,” Dig. of Tech. Papers, the 12th Int. Conf. on Solid-State Sensors & Actuators (Transducers’03), Boston, Massachusetts, June 8-12, 2003, pp. 955-958.

J. Wang, Z. Ren, and C. T.-C. Nguyen, “1.14-GHz self-aligned vibrating micromechanical disk resonator,” Tech. Digest, 2003 Radio Frequency Integrated Circuits Symposium, Philadelphia, Pennsylvania, June 8-10, 2003, pp. 335-338.

M. U. Demirci and C. T.-C. Nguyen, “Higher-mode free-free beam micromechanical resonators,” Proceed­ings, 2003 IEEE Int. Frequency Control Symposium, Tampa, Florida, May 5-8, 2003, pp. 810-818.

J. R. Clark, M. A. Abdelmoneum, C. T.-C. Nguyen, “UHF high-order radial-contour mode disk resonators,” Proceedings, 2003 IEEE Int. Frequency Control Symposium, Tampa, Florida, May 5-8, 2003, pp. 802-809.

S. Lee and C. T.-C. Nguyen, “Influence of automatic level control on micromechanical resonator oscillator phase noise,” Proceedings, 2003 IEEE Int. Frequency Control Symposium, Tampa, Florida, May 5-8, 2003 , pp. 341-349.

 

J. E. Butler, T. Feygelson, L. Sekaric, H. Craighead, J. Wang, and C. T.-C. Nguyen, “Diamond materials for MEMS and NEMS structures and devices,” Tech. Proceedings, 2003 Nanotechnology Conference and Trade Show, San Francisco, California, February 23-27, 2003, pp. 474-477.

C. T.-C. Nguyen, “MEMS technologies for communications (invited keynote),” Tech. Proceedings, 2003 Nanotechnology Conference and Trade Show, San Francisco, California, February 23-27, 2003, pp. 452-455.

M. A. Abdelmoneum, M. U. Demirci, and C. T.-C. Nguyen, “Stemless wine-glass-mode disk micromechanical resonators,” Proceedings, 16th Int. IEEE Micro Electro Mechanical Systems Conf., Kyoto, Japan, Jan. 19.-23, 2003, pp. 698-701.

 

 

Last Updated Tuesday, Aug. 7, 2012.

Contents copyright @ 2012. All rights reserved.

To report errors, please email: ctnguyen@eecs.berkeley.edu