Patent classifications
B81B2201/0242
Systems, methods, 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.
INTER-POLY CONNECTION FOR PARASITIC CAPACITOR AND DIE SIZE IMPROVEMENT
The present disclosure relates to a micro-electromechanical system (MEMS) structure including one or more semiconductor devices arranged on or within a first substrate and a MEMS substrate having an ambulatory element. The MEMS substrate is connected to the first substrate by a conductive bonding structure. A capping substrate is arranged on the MEMs substrate. The capping substrate includes a semiconductor material that is separated from the first substrate by the MEMS substrate. One or more conductive polysilicon vias include a polysilicon material that continuously extends from the conductive bonding structure, completely through the MEMS substrate, and to within the capping substrate. The semiconductor material of the capping substrate covers opposing sidewalls of the polysilicon material and an upper surface of the polysilicon material that is between the opposing sidewalls.
SYSTEMS AND METHODS FOR PROVIDING GETTERS IN MICROELECTROMECHANICAL SYSTEMS
Systems and methods are provided that provide a getter in a micromechanical system. In some embodiments, a microelectromechanical system (MEMS) is bonded to a substrate. The MEMS and the substrate have a first cavity and a second cavity therebetween. A first getter is provided on the substrate in the first cavity and integrated with an electrode. A second getter is provided in the first cavity over a passivation layer on the substrate. In some embodiments, the first cavity is a gyroscope cavity, and the second cavity is an accelerometer cavity.
SENSOR SYSTEM WITH A MICROELECTROMECHANICAL SENSOR ELEMENT AND METHOD FOR PRODUCING A SENSOR SYSTEM
A sensor system with a first semiconductor die part and with a second semiconductor die part is proposed, wherein the first semiconductor die part has a microelectromechanical sensor element, wherein the second semiconductor die part covers the microelectromechanical sensor element, wherein the second semiconductor die part has a via for electrically contacting the microelectromechanical sensor element, in particular directly. A method for producing a sensor system is also proposed.
MEMS ROTOR WITH COATED BOTTOM SURFACE
This disclosure describes a comprising a handle wafer and a device wafer which is bonded to the handle wafer. The handle wafer comprises a cavity and the device wafer comprises a mobile rotor part above the cavity. A bottom coating layer covers at least a part of the bottom surface of the rotor.
METHOD FOR PRODUCING AN INTEGRATED CIRCUIT POINTED ELEMENT COMPRISING ETCHING FIRST AND SECOND ETCHABLE MATERIALS WITH A PARTICULAR ETCHANT TO FORM AN OPEN CRATER IN A PROJECT
A method for detecting orientation of an integrated circuit is disclosed. The method includes moving, in response to a gravitational force, a mobile metallic piece in an evolution zone of a housing. The housing is formed in an interconnect region of the integrated circuit. The housing includes walls defining the evolution zone. The walls are formed within multiple metallization levels of the interconnect region. The walls include a floor wall and a ceiling wall. At least one of the floor wall and ceiling wall incorporate a pointed element directing its pointed region towards the mobile metallic piece. The pointed element delimits an open crater in a concave part of a projection. The method further includes creating an electrical signal by movement of the mobile metallic piece at a plurality of electrically conducting elements positioned at boundary points of the evolution zone and detecting the electrical signal by a detector.
Method and system for sensor configuration
Described herein are methods and systems for controlling a sensor assembly with a plurality of same type sensors. Sensors are operated in active and inactive states and have a corresponding performance parameter and reliability parameter that may be determined. The activation state of at least one of the sensors is changed based on an operational parameter. The performance parameter and/or the reliability parameter can then be updated.
MEMS device with optimized geometry for reducing the offset due to the radiometric effect
A MEMS device with teeter-totter structure includes a mobile mass having an area in a plane and a thickness in a direction perpendicular to the plane. The mobile mass is tiltable about a rotation axis extending parallel to the plane and formed by a first and by a second half-masses arranged on opposite sides of the rotation axis. The first and the second masses have a first and a second centroid, respectively, arranged at a first and a second distance b1, b2, respectively, from the rotation axis. First through openings are formed in the first half-mass and, together with the first half-mass, have a first total perimeter p1 in the plane. Second through openings are formed in the second half-mass and, together with the second half-mass, have a second total perimeter p2 in the plane, where the first and the second perimeters p1, p2 satisfy the equation: p1×b1=p2×b2.
INERTIAL MEASUREMENT UNIT
An inertial measurement unit includes: an inertial sensor module having a first inertial sensor and having an outer shape molded with a first resin; a component part; a second resin molding the inertial sensor module and the component part; and a metal provided between the first resin of the inertial sensor module and the second resin.
Temperature dependent calibration of movement detection devices
An electronics system has a board with a thermal interface having an exposed surface. A thermoelectric device is placed against the thermal interface to heat the board. Heat transfers through the board from a first region where the thermal interface is located to a second region where an electronics device is mounted. The electronics device has a temperature sensor that detects the temperature of the electronics device. The temperature of the electronics device is used to calibrate an accelerometer and a gyroscope in the electronics device. Calibration data includes a temperature and a corresponding acceleration offset and a corresponding angle offset. A field computer simultaneously senses a temperature, an acceleration and an angle from the temperature sensor, accelerometer and gyroscope and adjusts the measured data with the offset data at the same temperature. The field computer provides corrected data to a controlled system.