Passive temperature compensation of silicon MEMS devices

Wave transmission lines and networks – Resonators – Temperature compensated

Reexamination Certificate

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Details

C333S186000, C257S415000, C438S050000, C438S053000

Reexamination Certificate

active

07889030

ABSTRACT:
The invention relates to MEMS devices. In one embodiment, a micro-electromechanical system (MEMS) device comprises a resonator element comprising a semiconducting material, and at least one trench formed in the resonator element and filled with a material comprising oxide. Further embodiments comprise additional devices, systems and methods.

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patent: 2007/0188269 (2007-08-01), Lutz et al.
patent: 2007072409 (2007-06-01), None
Hopcroft et al., A High-Stability MEMS Frequency Reference, Transducers & Eurosensors 2007, 14th International Conference on Solid-State Sensors, Actuators and Microsystems, Lyon, France, Jun. 10-14, 2007, pp. 1307-1309, IEEE (3 pages).
Hsu et al., Frequency Trimming for MEMS Resonator Oscillators, Ann Arbor, Michigan, USA, 2007, pp. 1088-1091, IEEE (4 pages).
Kim et al., Si-SiO2 Composite MEMS Resonators in CMOS Compatible Wafer-scale Thin-Film Encapsulation; IEEE-FCS '07 Conference at Geneva, Switzerland, 2007, pp. 1214-1219, IEEE (6 pages).
Hopcroft et al., Temperature Compensation of a MEMS Resonator using Quality Factors as a Thermometer, MEMS 06, 2006, pp. 222-225, IEEE (4 pages).
De et al., Theory of Thermoelastic Damping in Electrostatically Actuated Microstructures, Physical Review, Oct. 17, 2006, American Physical Society, pp. 144305-1-144305-13 (13 pages).

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