High cycle MEMS device

Electricity: magnetically operated switches – magnets – and electr – Electromagnetically actuated switches – Polarity-responsive

Reexamination Certificate

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C200S181000

Reexamination Certificate

active

07142076

ABSTRACT:
A high life cycle and low voltage MEMS device. In an aspect of the invention, separate support posts are disposed to prevent a suspended switch pad from touching the actuation pad while permitting the switch pad to ground a signal line. In another aspect of the invention, cantilevered support beams are made from a thicker material than the switching pad. Increased thickness material in the cantilever tends to keep the switch flat in its resting position. Features of preferred embodiments include dimples in the switch pad to facilitate contact with a signal line and serpentine cantilevers arranged symmetrically to support the switch pad.

REFERENCES:
patent: 4959515 (1990-09-01), Zavracky et al.
patent: 5168249 (1992-12-01), Larson
patent: 5258591 (1993-11-01), Buck
patent: 5677823 (1997-10-01), Smith
patent: 5929497 (1999-07-01), Chavan et al.
patent: 6046659 (2000-04-01), Loo et al.
patent: 6091050 (2000-07-01), Carr
patent: 6100477 (2000-08-01), Randall et al.
patent: 6124650 (2000-09-01), Bishop et al.
patent: 6143997 (2000-11-01), Feng et al.
patent: 6307452 (2001-10-01), Sun
patent: 6483395 (2002-11-01), Kasai et al.
patent: 6529093 (2003-03-01), Ma
patent: 6657525 (2003-12-01), Dickens et al.
patent: 6700172 (2004-03-01), Ehmke et al.
patent: 6713695 (2004-03-01), Kawai et al.
patent: 6812814 (2004-11-01), Ma et al.
patent: 2002/0171517 (2002-11-01), Guo et al.
patent: 2004/0050675 (2004-03-01), Feng
C.L. Goldsmith, Zhimin Yao, Susan Eshelman, and David Denniston, “Performance of Low-Loss RF MEMS Capacitive Switches”IEEE Microwave and Guides Wave Letters, vol. 8, No. 8, Aug. 1988, pp. 269-271.
N. Scott Barker, Gabriel M. Rebeiz, “Distributed MEMS True-Time Delay Phase Shifters and Wide-Bank Switches”,IEEE Transactions on Microwave Theory and Techniques, vol. 46, No. 11, Nov. 1988, pp. 1881-1890.
Elliot R. Brown, “RF-MEMS Switches for Reconfigurable Integrated Circuits”,IEEE Transactions on Microwave Theory and Techniques, vol. 46, No. 11, Nov. 1998, pp. 1868-1880.
J. Jason Yao, M. Frank Chang, “A Surface Micromachined Miniature Switch for Telecommunications Applications with Signal Frequencies from DC up to 4 GHZ”, IEEE conference paper, 1995.
Chuck Goldsmith, Tsen-Hwang Lin, Bill Powers, Wen-Rong Wu, Bill Norvell, “Micromechanical Membrane Switches for Microwave Applications”,IEEE MTT-S Digest, 1995, pp. 91-94.
C. Goldsmith Z. Yao, S. Eshelman, D. Denniston, S. Chen, J. Ehmke, A. Malczewski, R. Richards, “Micromachining of RF Devices for Microwave Applications”, Raytheon TI Systems Materials.
J. Jason Yao, Sang Tae Park, and Jeffrey DeNatale, “High Tuning-Ratio MEMS-Based Tunable Capacitors for RF Communications Applications”, Solid State Sensor and Actuator Workshop, Hilton Head Island, South Carolina, Jun. 8, 1998.
J.L. Ebel, A.P. Walker, R.E. Strawser, R. Cortez, K.D. Leedy, G.C. DeSalvo, “Investigation of MEMS RF switches for low loss phase shifters”, GOMAC 2001 Digest of Papers, pp. 87-89, Mar. 2001.
C. Goldsmith, J. Ehmke, A. Malczewski, B. Pillans, S. Eshelman, Z. Yao, J. Brank, and M. Eberly, “Lifetime Characterization of Capacitive RF Mems Switches”, IEEE MTT-S 2001 International Microwave Symposium Digest, pp. 227-230, May 2001.

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