Shell type actuator

Electrical generator or motor structure – Non-dynamoelectric – Thermal or pyromagnetic

Reexamination Certificate

Rate now

  [ 0.00 ] – not rated yet Voters 0   Comments 0

Details

C310S324000

Reexamination Certificate

active

07812502

ABSTRACT:
A micromechanical resonator is formed on a substrate. The resonator has a partial spherical shell clamped on an outside portion of the shell to the substrate. In other embodiments, a flat disc or other shape may be used. Movement is induced in a selected portion of the disc, inducing easily detectible out-of-plane motion. A laser is used in one embodiment to heat the selected portion of the disc and induce the motion. The motion may be detected by capacitive or interferometric techniques.

REFERENCES:
patent: 4276491 (1981-06-01), Daniel
patent: 5188983 (1993-02-01), Guckel et al.
patent: 6222304 (2001-04-01), Bernstein
patent: 6271052 (2001-08-01), Miller et al.
patent: 6698201 (2004-03-01), Sarkar et al.
patent: 2002/0086455 (2002-07-01), Franosch et al.
patent: 2002/0126387 (2002-09-01), Ishikawa et al.
patent: 2004/0004532 (2004-01-01), Davis et al.
patent: 0451992 (1991-10-01), None
patent: WO-2005020434 (2005-03-01), None
patent: WO-2005020434 (2005-03-01), None
Adams, S. G., et al., “Capacitance Based Tunable Resonators”,Journal of Micromechanics and Microengineering, 8, (1998), 15-23.
Aubin, K. L., “Laser Annealing for High-Q MEMS Resonators”,Proceedings of SPIE, 5116, (Apr. 30, 2003),531-535.
Carr, S. M., et al., “Elastic Instability of Nanomechanical Beams”,Applied Physics Letters, 82(5), (Feb. 3, 2003), 709-711.
Carr, D., “Fabrication of Nanoelectromechanical Systems in Single Crystal Silicon Using Silicon on Insulator Substrates and Electron Beam Lithography”,Journal of Vacuum Science&Technology B., 15(6), (1997), 2760-2763.
Chaudhry, Z., et al., “Modeling of Induced Strain Actuation of Shell Structures”,The Journal of the Accoustical Society of America, 97(5), (May 1995), 2872-2877.
Cleland, A. N., et al., “A Nanometre-Scale Mechanical Electrometer”,Nature, 392, (Mar. 12, 1998), 160-162.
Golio, M.,The RF and Microwave Handbook, 'CRC Press,(2001), 2-6-2-10.
Houston, B. H., et al., “Thermoelastic Loss in Microscale Oscillators”,Applied Physics Letters, 80(7), (Feb. 18, 2002), 1300-1302.
Hsu, W.-T., et al., “Mechanically Temperature-Compensated Flexural-Mode Micromechanical Resonators”,IEDM Technical Digest, International Electron Devices Meeting, (2000), 399-402.
Huang, X. M., “Nanodevice Motion at Microwave Frequencies”,Nature, 421(6922), (Jan. 30, 2003), p. 496.
Jeffrey, A.,Advanced Engineering Mathematics, Harcourt/Academic Press, Burlington, MA, (2002), 1004-1006.
Jenkins, D. F., et al., “The Use of Sputtered ZnO Piezoelectric Thin Films as Broad-Band Microactuators”,Sensors and Actuators A, 63, (1997),135-139.
Lalande, F., et al., “Modeling Considerations for In-Phase Actuation of Actuators Bonded to Shell Structures”,AIAA Journal, 33(7), (Jul. 1995),1300-1304.
Lee, S., et al., “A 10-MHz Micromechanical Resonator Pierce Reference Oscillator for Communications”,Digest of Technical Papers, 11th International Conference on Solid-State Sensors&Actuators(TRANSDUCERS '01) (2001), 1094-1097.
Lifshitz, R. , et al., “Thermoelastic Damping in Micro- and Nanomechanical Systems”,Physics Review B, 61(8), (Feb. 15, 2000), 5600-5609.
Liu, X. , et al., “Low-Temperature Internal Friction in Metal Films and in Plastically Deformed Bulk Aluminum”,Physical Review B, 59(18), (May 1999), 11767-11776.
Llic, B., et al., “Single Cell Detection With Micromechanical Oscillators”,J. Vac. Sci. Technol. B, 19(6), (Nov./Dec. 2001), 2825-2828.
Maier-Schneider, D., et al., “Elastic Properties and Microstructure of LPCVD Polysilicon Films”,Journal of Micromechanics and Microengineering, 6, (1996), 436-446.
Mattila, T., et al., “14 MHz Micromechanical Oscillator”,Sensors and Actuators A—Physical, 97-98, (2002), 497-502.
Mattila, T., et al., “A 12 MHz Micromechanical Bulk Acoustic Mode Oscillator”,Sensors and Actuators A, 101, (2002) , 1-9.
Morse, P. M., et al.,Theoretical Acoustics, Princeton University Press, Princeton, N.J.,(1968), p. 214.
Nguyen, C. T., et al., “Transceiver Front-End Architectures Using Vibrating Micromechanical Signal Processors”,Digest of Papers. 2001 Topical Meeting on Silicon Monolithic Integrated Circuits in RF Systems, (2001), 23-32.
Nguyen, C. T., “Vibrating RF MEMS for Low Power Wireless Communications (Invited)”,Proceedings, 2000 International Workshop(iMEMS '01), (2001), 21-34.
Que, L., et al., “Bent-Beam Electrothermal Actuators—Part I: Single Beam and Cascaded Devices”,Journal of Microelectromechanical Systems, 10(2), (Jun. 2001), 247-254.
Rugar, D., et al., “Mechanical Parametric Amplification and Thermomechanical Noise Squeezing”,Physics Review Letters, 67(6), (1991), 699-702.
Sodel, W., “A Natural Frequency Analogy Between Spherically Curved Panels and Flat Plates”,Journal of Sound and Vibration, 29(4), (1973) ,457-461.
Sodel, W., “Shell Vibrations Without Mathematics”,Sound and Vibration, 10(4), (Apr. 1976),12-15.
Timoshenko, S. P., et al.,Theory of Elastic Stability, 2nd Edition, McGraw-Hill Book Company, Inc., New York, N.Y.,(1961), 389-392.
Tylikowski, A., “Stability and Stabilization of Thermally Induced Vibrations of Cylindrical Shells”,Journal of Thermal Stresses, 24(6), (2001),605-628.
Warneke, B. A., et al., “49.4: An Autonomous 16 mm3Solar-Powered Node for Distributed Wireless Sensors Networks”,Proceedings of IEEE Conference on Sensors, vol. 2, (2002), 1510-1515.
Yang, J. , et al., “Surface Effects and High Quality Factors in Ultrathin Single-Crystal Silicon Cantilevers”,Applied Physics Letters, 77(23), (Dec. 4, 2000), 3860-3862.
Yasumura, K. Y., et al., “Quality Factors in Micron- and Submicron- Thick Cantilevers”,Journal of Microelectromechnical Systems, 9(1), (Mar. 2000), 117-125.
Zalalutdinov, M., “Autoparametric Optical Drive for Micromechanical Oscillators”,Applied Physics Letters, 79(5), (Jul. 30, 2001),695-697.
Zalalutdinov, M. , “Frequency Entrainment for Micromechanical Oscillator”,Applied Physics Letters, 83(16), (Oct. 20, 2003),3281-3283.
Zalalutdinov, M., et al., “Optically Pumped Parametric Amplification for Micromechanical Oscillators”,Applied Physics Letters, 78(20), (May 14, 2001), 3142-3144.
Zhang, Z., et al., “Magnetic Resonance Force Microscopy With a Ferromagnetic Tip Mounted on the Force Detector”,Solid State Nuclear Magnetic Resonance, 11, (1998), 65-72.
Ziger, D. H., et al., “Process Factors in Ammonia Catalyzed Image Reversal”,Semiconductor International, 11(6), (May 1988), 200-204.
Abdelmoneum, M. A., et al., “Stemless Wine-Glass-Mode, Disk Micromechanical Resonators”,Proceedings of the IEEE 16th Annual International Conference on Microelectromechanical Systems, 16, (Jan. 19, 2003),698-701.
Bircumshaw, B. , et al., “The Radial Bulk Annular Resonator: towards a 50' Omega! RF MEMS Filter”,Transducers '03 12th International Conference on Solid-State Sensors, Actuators and Microsystems. Digest of Technical Papers(CAT. No. 03TH8664)IEEE, 1, (Jun. 2003),875-878.
Clark, J. R., “High-Q VHF Micromechanical Contour-Mode Disk Resonators”,IEDM, IEDM Technical Digest., (Dec. 10, 2000),493-496.
Kazinczi, R. , “3-D Resonator Bridges as Sensing Elements”,Sesens Workshop on Semiconductor Sensors, (Dec. 1, 2000),804-805.
Reichenbach, R. B., “Resistively Actuated Micromechanical Dome Resonators”,Proceedings of the SPIE-The International Society for Optical Engineering SPIE-INT, 5344 (1), (Jan. 27, 2004),51-58.
Zalalutdinov, M. , et al., “Shell-Type Micromechanical Actuator and Resonator”,Applied Physics Letters, 83 (18), (Nov. 3, 2003),3815-3817.
Zalalutdinov, M. , “Shell-type Micromechanical Oscillator”,Proceedings of the SPIE, vol. 5116, (May 19, 2003),229-236.

LandOfFree

Say what you really think

Search LandOfFree.com for the USA inventors and patents. Rate them and share your experience with other people.

Rating

Shell type actuator does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Shell type actuator, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Shell type actuator will most certainly appreciate the feedback.

Rate now

     

Profile ID: LFUS-PAI-O-4173984

  Search
All data on this website is collected from public sources. Our data reflects the most accurate information available at the time of publication.