B81B2203/0109

Silicon carbide structure, device, and method

A method of fabricating suspended beam silicon carbide microelectromechanical (MEMS) structure with low capacitance and good thermal expansion match. A suspended material structure is attached to an anchor material structure that is direct wafer bonded to a substrate. The anchor material structure and the suspended material structure are formed from either a hexagonal single-crystal SiC material, and the anchor material structure is bonded to the substrate while the suspended material structure does not have to be attached to the substrate. The substrate may be a semi-insulating or insulating SiC substrate. The substrate may have an etched recess region on the substrate first surface to facilitate the formation of the movable suspended material structures. The substrate may have patterned electrical electrodes on the substrate first surface, within recesses etched into the substrate.

Piezoelectric MEMS device with cantilever structures

A microelectromechanical systems (MEMS) device includes a MEMS device body connected to a first mooring portion and a second mooring portion. The MEMS device body further includes a first cantilever and a second cantilever and connected by a spring. The spring is in operable communication with the first cantilever and the second cantilever.

Micro-electromechanical system package having movable platform

A MEMS package including a fixed frame, a moveable platform and elastic restoring members is provided. The moveable platform is moved with respect to the fixed frame. The elastic restoring members are connected between the fixed frame and the moveable platform, and used to restore the moved moveable platform to an original position.

OPTICAL DEVICE PRODUCTION METHOD

An optical device includes a support portion a movable unit and a pair of torsion bars disposed on both sides of the movable unit on a first axis. The movable unit includes a main body portion, a ring-shaped portion surrounding the main body portion when viewed from a predetermined direction perpendicular to the first axis, two connection portions connecting the main body portion and the ring-shaped portion to each other, and a rib portion provided to the main body portion. Each of the two connection portions includes two connection regions that are separated from each other by a space and the each of the two connection region connects the main body portion and the ring-shaped portion to each other. The rib portion includes four extending portions radially extending between a center of the main body portion and the four connection regions respectively when viewed from the predetermined direction.

ELECTRIC CONNECTION FLEXURES

Electric connection flexures for moving stages of microelectromechanical systems (MEMS) devices are disclosed. The disclosed flexures may provide an electrical and mechanical connection between a fixed frame and a moving frame, and are flexible in the moving frame's plane of motion. In implementations, the flexures are formed using a process that embeds the two ends of each flexure in the fixed frame and moving frame, respectively.

Translating Z axis accelerometer

A system and method for providing a MEMS sensor are disclosed. In a first aspect, the system is a MEMS sensor that comprises a substrate, an anchor region coupled to the substrate, at least one support arm coupled to the anchor region, at least two guiding arms coupled to and moving relative to the at least one support arm, a plurality of sensing elements disposed on the at least two guiding arms to measure motion of the at least two guiding arms relative to the substrate, and a proof mass system comprising at least one mass coupled to each of the at least two guiding arms by a set of springs. The proof mass system is disposed outside the anchor region, the at least one support arm, the at least two guiding arms, the set of springs, and the plurality of sensing elements.

Out-of-plane hinge for micro and nanoelectromechanical systems with reduced non-linearity

A hinge for a microelectromechanical system includes a fixed part and a part movable relative to the fixed part along at least an out-of-plane direction, the hinge being intended to suspend the moving part from the fixed part. The hinge includes a first rigid part, a second part fixed to the first part at one end and intended to be anchored to the fixed part or the moving part. The second part deforms in bending in a first direction, two third parts are fixed to the first part and are anchored to the moving part or the fixed part, and the third parts deform in bending along a second direction orthogonal to the first direction.

Method of processing a wafer for manufacturing an oscillating structure such as a micro-mirror

To manufacture an oscillating structure, a wafer is processed by: forming torsional elastic elements; forming a mobile element connected to the torsional elastic elements; processing the first side of the wafer to form a mechanical reinforcement structure; and processing the second side of said wafer by steps of chemical etching, deposition of metal material, and/or deposition of piezoelectric material. Processing of the first side of the wafer is carried out prior to processing of the second side of the wafer so as not to damage possible sensitive structures formed on the first side of the wafer.

Fence structure to prevent stiction in a MEMS motion sensor

The present disclosure relates to a microelectromechanical systems (MEMS) package featuring a flat plate having a raised edge around its perimeter serving as an anti-stiction device, and an associated method of formation. A CMOS IC is provided having a dielectric structure surrounding a plurality of conductive interconnect layers disposed over a CMOS substrate. A MEMS IC is bonded to the dielectric structure such that it forms a cavity with a lowered central portion the dielectric structure, and the MEMS IC includes a movable mass that is arranged within the cavity. The CMOS IC includes an anti-stiction plate disposed under the movable mass. The anti-stiction plate is made of a conductive material and has a raised edge surrounding at least a part of a perimeter of a substantially planar upper surface.

Micro-sensor body and method for manufacturing the same, as well as micro-sensor
09796577 · 2017-10-24 · ·

The present disclosure relates to the field of sensor manufacturing technology, particularly discloses a method for manufacturing a micro-sensor body, comprising the steps of S1: applying a wet colloidal material on a substrate to form a colloidal layer, and covering a layer of one-dimensional nanowire film on the surface of the colloidal layer to form a sensor embryo; S2: drying the colloidal layer of the sensor embryo to an extent that the colloidal layer cracks into a plurality of colloidal islands, a portion of the one-dimensional nanowire film contracting into a contraction diaphragm adhered to the surface of the colloidal islands while the other portion of the one-dimensional nanowire film being stretched into a connection structure connected between the adjacent contraction diaphragms. By the method for manufacturing a micro-sensor body of the present disclosure, the contraction diaphragms and connection structures formed by stretching the one-dimensional nanowire film are connected stably, which enhances the stability of the sensor devices; and the cracking manner renders it easy to obtain a large-scale of sensor bodies with connection structure arrays in stable suspension.