Abstract:
A micro-electromechanical apparatus having a signal attenuation-proof function, and a manufacturing method and a signal attenuation-proof method thereof are disclosed. The micro-electromechanical apparatus includes a substrate, an insulation layer, and a sensing unit. The substrate has a doped region in which a majority of conductive carriers have the same polarity as an electronic signal. The insulation layer is located on the substrate, and the sensing unit is located above the insulation layer and forms the electronic signal when sensing a force.
Abstract:
Provided is an actuator having a structure with which stress concentration on an elastic member of the actuator can be reduced in a manufacturing process thereof and breakage of the elastic member can be inhibited. The actuator includes a movable member, an elastic member configured to connect the movable member and a supporting member to each other, and an electrode pair having a comb electrode structure for displacing the movable member in a direction perpendicular to a reflective surface in which all movable comb electrodes extending from the movable member are substantially in parallel with one another, and a portion of the elastic member, which is located at a beginning of extension from the movable member, is substantially in parallel with the movable comb electrodes.
Abstract:
A physical quantity sensor includes: a base substrate; a movable portion; a plurality of movable electrode fingers which are provided in the movable portion; a fixed electrode finger which is provided on the base substrate; and a fixing portion which fixes the movable portion to the base substrate. In the movable electrode fingers, a movable electrode finger which opposes the fixing portion in the first direction is included. A clearance between the movable electrode finger and the fixing portion is smaller than a clearance between the movable electrode finger and the fixed electrode finger. The width of the movable electrode finger is greater than the width of other movable electrode finger.
Abstract:
A micro-electromechanical apparatus having a signal attenuation-proof function, and a manufacturing method and a signal attenuation-proof method thereof are disclosed. The micro-electromechanical apparatus includes a substrate, an insulation layer, and a sensing unit. The substrate has a doped region in which a majority of conductive carriers have the same polarity as an electronic signal. The insulation layer is located on the substrate, and the sensing unit is located above the insulation layer and forms the electronic signal when sensing a force.
Abstract:
The displacement amount monitoring electrode structure includes a fixed electrode and a movable electrode each having a comb-teeth shape including a base part and electrode fingers extending from the base part in a direction parallel to a substrate. The fixed electrode and the movable electrode face each other such that the electrode fingers are meshed together. The fixed electrode is fixed to the substrate and the movable electrode can be displaced in the direction. The displacement amount monitoring electrode structure monitors a displacement amount of a detection mass to be driven at a target amplitude based on a change amount of a capacitance between the fixed electrode and the movable electrode. A change sensitivity of the change amount of the capacitance with respect to a displacement amount of the movable electrode, becomes larger after the displacement of the movable electrode reaches a target amount corresponding to the target amplitude.
Abstract:
A Micro Electro Mechanical Systems (MEMS) device includes a rotor having first rotor teeth and second rotor teeth formed in at least two layers of silicon-on-insulator (SOI) substrate. Each rotor tooth belonging to the first rotor teeth is formed in a first layer and each rotor tooth belonging of the second rotor teeth is formed in a second layer. A stator includes first stator teeth and second stator teeth formed in at least two layers of SOI substrate. Each stator tooth belonging to the first stator teeth is formed in a first layer and each stator tooth belonging to the second stator teeth is formed in a second layer.
Abstract:
This invention is a novel methodology for precision metrology, sensing, and actuation at the micro- and nano-scale. It is well-suited for micro- and nano-scale because it leverages off the electromechanical benefits of the scale. The invention makes use of electrical measurands of micro- or nano-scale devices to measure and characterize themselves, other devices, and whatever the devices subsequently interact with. By electronically measuring the change in capacitance, change in voltage, and/or resonance frequency of one or more test structures, a multitude of geometric, dynamic, and material properties may be extracted with a much higher accuracy and precision than conventional methods.
Abstract:
A Micro Electro Mechanical Systems (MEMS) device includes a rotor having first rotor teeth and second rotor teeth formed in at least two layers of silicon-on-insulator (SOI) substrate. Each rotor tooth belonging to the first rotor teeth is formed in a first layer and each rotor tooth belonging of the second rotor teeth is formed in a second layer. A stator includes first stator teeth and second stator teeth formed in at least two layers of SOI substrate. Each stator tooth belonging to the first stator teeth is formed in a first layer and each stator tooth belonging to the second stator teeth is formed in a second layer.
Abstract:
A micro-electro-mechanical system (MEMS) actuator assembly includes a mirror and four actuators. Each actuator includes a lever pivotable about a fulcrum axis. The inner end of each lever is coupled to one side of the mirror. Force is applied to one outer end of the levers to move one side of the mirror, which positions the mirror in one of four positions. Force is applied to two outer ends of the levers to move two sides of the mirror, which positions the mirror in one of four additional positions.
Abstract:
A micromechanical component has an outer stator electrode component and an outer actuator electrode component which is connected to a holder via at least one outer spring, an adjustable element being adjustable about a first rotation axis by application of a first voltage between the outer actuator electrode component and the outer stator electrode component, and having an inner stator electrode component and an inner actuator electrode component having a first web with at least one electrode finger disposed thereon, the adjustable element being adjustable about a second rotation axis by application of a second voltage between the at least one electrode finger of the inner actuator electrode component and the inner stator electrode component, and the inner actuator electrode component being connected to the outer actuator electrode component via an intermediate spring which is oriented along the second rotation axis. Also described is a production method for a micromechanical component.