Eta Sa Manufacture Horlogere Suisse

Eta Sa Fabriques D'ebauches

Festo Ag & Co

Heinz K&uuml;ck

Metin Giousouf

Rainer Platz

Martin Maichl

Michael Weinmann

Michael Riedel

Gebhard Munz

Andreas Joseph Schmid

Stefan Klump

Frank P&ouml;hlau

Carsten Pein

Wolfgang Eberhardt

J&uuml;rgen Sestak

Hubert Kr&auml;mer

Udo T&ouml;pfer

Markus Hoffman

There is described a time base comprising a resonator ( ) and an integrated electronic circuit ( ) for driving the resonator into oscillation and for producing, in response to this oscillation, a signal having a determined frequency. The resonator is an integrated micromechanical tuning fork resonator ( ) supported above a substrate ( ) and adapted to oscillate in a plane substantially parallel to the substrate. The tuning fork resonator comprises a base member ( ) extending substantially perpendicularly from the substrate, a free-standing oscillating structure ( ) connected to the base member and including at least a first pair of substantially parallel fork tines ( ) and an electrode structure ( ) disposed adjacent to the fork tines and connected to the integrated electronic circuit.

Time base comprising an integrated micromechanical tuning fork resonator

A piezoelectric valve whose housing defines a valve chamber wherein at least one piezoelectric flexural transducer is located. The piezoelectric flexural transducer possesses a contact face, which faces a first outer wall of the valve housing. This first outer wall is in the form of a wiring support which possesses a support body consisting of plastic material, which at the outer side opposite to the valve chamber bears a wiring arrangement. The wiring arrangement is in electrical contact by way of a via extending through a cutout in the support body with the piezoelectric flexural transducer, since the via consists of an electrically conductive elastic plug, against which the at least one contact face is thrust at the inner face of the support body.

Piezoelectric valve

A time base having a resonator ( ) and an integrated electronic circuit ( ) for driving the resonator into oscillation and for producing, in response to this oscillation, a signal having a determined frequency. The resonator is an integrated micromechanical ring resonator ( ) supported above a substrate ( ) and adapted to oscillate around an axis of rotation (O) substantially perpendicular to the substrate. The ring resonator has a central post ( ) extending from the substrate along the axis of rotation, and a free-standing oscillating structure ( ) including an outer ring ( ) coaxial with the axis of rotation, and a plurality of spring elements ( ) disposed symmetrically around the central post and connecting the outer ring to the central post.

Time base comprising an integrated micromechanical ring resonator

Growing community of inventors

Stuttgart, Germany

Heinz Kück

Growing community of inventors

Stuttgart, Germany

Heinz K&uuml;ck

Heinz Kück