Wave transmission lines and networks – Coupling networks – Electromechanical filter
Reexamination Certificate
2008-04-22
2008-04-22
Summons, Barbara (Department: 2817)
Wave transmission lines and networks
Coupling networks
Electromechanical filter
C333S197000, C333S200000
Reexamination Certificate
active
11725878
ABSTRACT:
Thermally induced frequency variations in a micromechanical resonator are actively or passively mitigated by application of a compensating stiffness, or a compressive/tensile strain. Various composition materials may be selected according to their thermal expansion coefficient and used to form resonator components on a substrate. When exposed to temperature variations, the relative expansion of these composition materials creates a compensating stiffness, or a compressive/tensile strain.
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Lutz Markus
Partridge Aaron
Kenyon & Kenyon LLP
Robert & Bosch GmbH
Summons Barbara
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