B81B2201/025

WIRE-BOND DAMPER FOR SHOCK ABSORPTION

Various embodiments of the present disclosure are directed towards a microelectromechanical systems (MEMS) package comprising a wire-bond damper. A housing structure overlies a support substrate, and a MEMS structure is between the support substrate and the housing structure. The MEMS structure comprises an anchor, a spring, and a movable mass. The spring extends from the anchor to the movable mass to suspend and allow movement of the movable mass in a cavity between the support substrate and the housing structure. The wire-bond damper is on the movable mass or structure surrounding the movable mass. For example, the wire-bond damper may be on a top surface of the movable mass. As another example, the wire-bond damper may be on the support substrate, laterally between the anchor and the movable mass. Further, the wire-bond damper comprises a wire formed by wire bonding and configured to dampen shock to the movable mass.

PHYSICAL QUANTITY SENSOR, PHYSICAL QUANTITY SENSOR DEVICE, AND INERTIAL MEASUREMENT UNIT
20220163558 · 2022-05-26 ·

A physical quantity sensor includes a substrate provided with a first fixed electrode, a movable body provided to be swingable with respect to the substrate about a rotation axis along a Y axis, and a stopper restricting rotation of the movable body. The movable body is provided with an elastic portion at a position overlapping the stopper in a plan view viewed from the Z axis direction. The first mass portion includes a first region, and a second region far from the rotation axis. A first gap distance of a first gap between the first mass portion and the first fixed electrode in the first region is smaller than a second gap distance of a second gap between the first mass portion and the first fixed electrode in the second region.

PACKAGE STRUCTURE AND METHOD FOR MANUFACTURING THE SAME
20220153573 · 2022-05-19 ·

A package structure that includes a pair of substrates arranged to oppose each other so as to form an internal space; a bonding portion sealing the pair of substrates; an element is sealed in the internal space and surrounded by the pair of substrates; an adsorption layer within the internal space and opposing at least one substrate of the pair of substrates, the adsorption layer constructed to adsorbs at least hydrogen; and a diffusion-inhibiting layer between the at least one substrate and the adsorption layer, and in which hydrogen is more difficult to diffuse compared with in the at least one substrate.

MICROMECHANICAL SENSOR ELEMENT
20220144623 · 2022-05-12 ·

A micromechanical sensor element includes a substrate, a first structure movably arranged on the substrate, a second structure movably arranged on the substrate and an electrode arrangement, situated on the substrate in a fixed manner, which includes at least one first electrode. The movably arranged structures are coupled with each other by at least one coupling element in such a way that, upon a deflection of the first movably arranged structure along a first direction, the second movably arranged structure undergoes a deflection along an opposite direction. The first electrode includes a plurality of electrode surfaces. The movably arranged structures each include a plurality of movable electrode surfaces. The substrate-fixed electrode surfaces and the movable electrode surfaces engage with each other. The movable electrode surfaces are each situated on sides of the electrode surfaces of the substrate-fixed electrode arrangement facing away from the movably arranged structures.

MICRO-ELECTROMECHANICAL TRANSDUCER WITH SUSPENDED MASS

The present invention relates to a micro-electromechanical transducer comprising a pressure detection arrangement and a sub-assembly adapted to cooperate with the pressure detection arrangement via a coupling volume, said sub-assembly comprising one or more moveable masses, a suspension member suspending a number of moveable masses, wherein the coupling volume is at least partly defined by the suspension member, and wherein the coupling volume is acoustically connected to an interior volume of the pressure detection arrangement, and wherein the suspension member comprises a viscoelastic material with a predetermined viscous and sealant behaviour in order to dampen one or more resonance peaks of the micro-electromechanical transducer and acoustically seal the coupling volume. The present invention further relates to a hearing device comprising such a micro-electromechanical transducer.

Microdevice comprising at least two movable elements

A microdevice (100) comprising a movable element (111) capable of moving relative to a fixed part (115), produced in first and second layers of material (104, 106) arranged one above the other such that the movable element comprises a portion (112) of the first layer and a portion (118) of the second layer secured to each other, and wherein the movable element is suspended from the fixed part by a suspension structure (121) formed in the first and/or second layer of material.

Methods of manufacture of microisolators and devices for mechanical isolation or mechanical damping of microfabricated inertial sensors

MEMS-based sensors can experience undesirable signal frequencies caused by vibrations, shocks, and accelerations, among other phenomena. A microisolation system can isolate individual MEMS-based sensors from undesirable signal frequencies and shocks. An embodiment of a system for microisolation of a MEMS-based sensor can include an isolation platform connected to one or more folded springs. Another embodiment of a system for microisolation can include an isolation platform and/or a frame connected to a mesh damping mechanism. In at least one embodiment, a mesh damping mechanism can be a microfibrous metal mesh damper. In one or more embodiments, a system for microisolation can include an isolation platform connected to one or more L-shaped springs, and a thickness of the one or more L-shaped springs can be less than a thickness of the isolation platform.

MEMS structure for offset minimization of out-of-plane sensing accelerometers

Exemplary embodiment of a tilting z-axis, out-of-plane sensing MEMS accelerometers and associated structures and configurations are described. Disclosed embodiments facilitate improved offset stabilization. Non-limiting embodiments provide exemplary MEMS structures and apparatuses characterized by one or more of having a sensing MEMS structure that is symmetric about the axis orthogonal to the springs or flexible coupling axis, a spring or flexible coupling axis that is aligned to one of the symmetry axes of the electrodes pattern, a different number of reference electrodes and sense electrodes, a reference MEMS structure having at least two symmetry axes, one which is along the axis of the springs or flexible coupling, and/or a reference structure below the spring or flexible coupling axis.

MEMS DEVICES WITH SUPPORT STRUCTURES AND ASSOCIATED PRODUCTION METHODS
20210363001 · 2021-11-25 · ·

A microelectromechanical system (MEMS) device contains a movable MEMS structure, a first support structure in which an edge of the MEMS structure is attached, a cavity which is bounded by the MEMS structure and the first support structure, and a second support structure which is attached in the cavity and at the edge of the MEMS structure and is configured so as to support the edge of the MEMS structure mechanically.

Inertial Sensor And Inertial Measurement Unit

In an inertial sensor, a first movable body configured to swing around a first rotation axisrotation axis along a first direction has an opening; the opening includes a second movable body configured to swing around a second rotation axisrotation axis along a second direction, a second support beam supporting the second movable body as the second rotation axisrotation axis, a third movable body configured to swing around a third rotation axisrotation axis along the second direction, and a third support beam supporting the third movable body as the third rotation axisrotation axis; and a protrusion is provided at a surface facing the second movable body and the third movable body, or at the second movable body and the third movable body, the protrusion protruding toward the second movable body and the third movable body or the surface.