Patent ID: 9385685
Filing Date: 2016-07-05
CPC Classification: H03H

Claim Text:
1. A micro-electrical-mechanical system (MEMS) vibrating structure adapted to predominantly vibrate in a longitudinal mode of vibration and comprising: a carrier substrate; a first anchor on a first surface of the carrier substrate; a second anchor on the first surface of the carrier substrate; a single-crystal piezoelectric body suspended between the first anchor and the second anchor and including a first surface parallel to and facing the carrier substrate and a second surface opposite the first surface, the single-crystal piezoelectric body including a uniform crystalline orientation defined by a first Euler angle (φ), a second Euler angle (θ), and a third Euler angle (ψ); and a first conductive layer on the first surface of the single-crystal piezoelectric body, the first conductive layer comprising a first conductive section over the first anchor and a portion of the single-crystal piezoelectric body and a second conductive section over the second anchor and a portion of the single-crystal piezoelectric body; and a second conductive layer on the second surface of the single-crystal piezoelectric body, the second conductive layer comprising a first conductive section approximately aligned with the first conductive section of the first conductive layer and a second conductive section approximately aligned with the second conductive section.