Abstract:
A microelectromechanical gyroscope structure for detecting angular motion about an axis of angular motion (Z). A drive element (102) is suspended for one-dimensional motion in a direction of a drive axis (X), and a sense body (100) carries one or more sense rotor electrodes (200) and is coupled to the drive element (102) with a first directional spring structure (104) that forces the sense body (100) to move with the drive element (102) and has a preferred direction of motion in a direction of a sense axis (Y). The drive element (102) includes an actuation body (114) and a drive frame (116) wherein the first spring structure (104) couples the sense body (100) directionally to the drive frame (116), and a second directional spring structure (118) that couples the drive frame (116) to the actuation body (114) and has a preferred direction of motion in the direction of the sense axis (Y).
Abstract:
An electrostatic comb drive actuator for a MEMS device includes a flexure spring assembly and first and second comb drive assemblies, each coupled to the flexure spring assembly on opposing sides thereof. Each of the first and second comb assemblies includes fixed comb drive fingers and moveable comb drive fingers coupled to the flexure spring assembly and extending towards the fixed comb drive fingers. The comb drive fingers are divided equally between the first and second comb drive assemblies and placed symmetrically about a symmetry axis of the flexure spring assembly. When electrically energized, the moveable comb drive fingers of both the first and second comb drive assemblies simultaneously move towards the fixed comb drive fingers of the first and second comb drive assemblies.
Abstract:
The invention relates to a method for producing a micromechanical component, comprising the following steps: arranging an electrode comb (50) in a mount (54, 56), wherein a first partial surface of the electrode comb (50) is arranged at a distance not equal to zero from a glass surface (58) of the mount (54, 56), and wherein the electrode comb (50) is connected to the mount (54, 56) via at least one connecting part arranged on a second partial surface of the electrode comb (50); applying a voltage between the first partial surface of the electrode comb (50) and the glass surface (58), with the result that the distance between the first partial surface of the electrode comb (50) and the glass surface (58) is reduced; and anodically fixedly bonding the first partial surface of the electrode comb (50) to the glass surface (58). The invention furthermore relates to a method for producing a micromechanical component, and to a micromechanical component.
Abstract:
The invention relates to an electrode comb (52, 54) for a micromechanical component. Said electrode comb (52, 54) is designed such that at least two electrode fingers (52a, 54a) are mounted on a first fastening part (52b, 54b) at a first end while being mounted on a second fastening part (52b, 54b) at a second end lying opposite the first end. The invention additionally relates to a micromechanical component comprising a stator electrode comb (54) and an actuator electrode comb (52) between which a voltage (U) can be applied such that the actuator electrode comb (54) can be rotated about an axis of rotation (56) of the actuator electrode comb (52). The axis of rotation (56) of the actuator electrode comb (52) vertically penetrates at least one surface of an electrode finger (54a) of the stator electrode comb (44, 54). The invention further relates to a method for producing an electrode comb (52, 54) and a method for producing a micromechanical component.
Abstract:
Actuator apparatus comprising at least one moving elements, each comprising comb drive apparatus including at least first and second comb elements at least one of which is free to be in motion in a medium, and a controller controlling the motion responsive to an input signal representing a desired sound.
Abstract:
Die Erfindung betrifft ein Herstellungsverfahren für ein mikromechanisches Bauteil mit den Schritten: Anordnen eines Elektrodenkamms (50) in einer Halterung (54, 56), wobei eine erste Teiloberfläche des Elektrodenkamms (50) in einem Abstand ungleich Null zu einer Glasoberfläche (58) der Halterung (54, 56) angeordnet wird, und wobei der Elektrodenkamm (50) über mindestens ein an einer zweiten Teiloberfläche des Elektrodenkamms (50) angeordnetes Verbindungsteil mit der Halterung (54, 56) verbunden wird; Anlegen einer Spannung zwischen der ersten Teiloberfläche des Elektrodenkamms (50) und der Glasoberfläche (58), so dass der Abstand zwischen der ersten Teiloberfläche des Elektrodenkamms (50) und der Glasoberfläche (58) reduziert wird; und Anodisches Festbonden der ersten Teiloberfläche des Elektrodenkamms (50) an der Glasoberfläche (58). Des Weiteren betrifft die Erfindung ein Herstellungsverfahren für ein mikromechanisches Bauteil und ein mikromechanisches Bauteil.
Abstract:
A method for manufacturing a microscanner having a micro mirror is disclosed. Initially, a two-axis self-aligned vertical comb-drive microscanner is fabricated from a bonded silicon-on-insulator-silicon (SOI) silicon wafer. By depositing a thin film of aluminum on the surface, a SOI silicon wafer can provide about 90% reflectivity at 633 nm. A 2.5 μm misalignment tolerance can be achieved for the critical backside alignment step. As a result, confocal images with 1 μm resolution can be acquired using a microscanner having SOI silicon wafer mirrors.
Abstract:
Die vorliegende Erfindung betrifft ein Verfahren zur Herstellung eines Mikrospiegel-Aktuators sowie einen entsprechenden Aktuator. Bei dem Verfahren wird der Aktuator aus einem Schichtaufbau aus zumindest drei Hauptschichten (101, 103, 107) erzeugt wird, die über Zwischenschichten (102, 104, 106) zumindest abschnittsweise elektrisch voneinander isoliert sind. Die Schichten werden zur Bildung des Mikrospiegelelementes und der Elektroden strukturiert, wobei die Strukturierung derart erfolgt, dass ein geschlossener Rahmen (310) aus zumindest der obersten Haupt Schicht (107) um den inneren Bereich des Aktuators gebildet wird, der eine hermetische Kapselung des inneren Bereichs durch Aufbringen einer Deckplatte auf den Rahmen ermöglicht. Weiterhin wird zwischen zumindest zwei der Schichten eine von diesen Schichten über die Zwischenschichten elektrisch isolierte Leiterbahnebene (105) erzeugt und zur Bildung von Leiterbahnen strukturiert, über die nach der Bildung von Kontaktöffnungen in ein oder mehreren der Zwischenschichten (102, 104, 106) ein oder mehrere der Elektroden von außerhalb des Rahmens (310) elektrisch kontaktierbar sind. Mit dem Verfahren lässt sich das eine hermetisch dichte Verkapselung des inneren Bereiches des Aktuators bereits auf Wafer-Ebene auf einfache Weise erreichen.
Abstract:
An optical scanning apparatus includes an in-plane vibratory mass platform (110) having at least one diffraction grating (100) formed thereon as the scanning element, at least one flexure structure (120) that connects the mass platform to at least one fixed support (130), and at least one driving actuator (150) that drives the mass platform (110) into an in-plane vibratory motion (190) which can be rotational and/or translational (190). The apparatus may also be formed by a mass platform (110) having at least one diffraction grating (100) formed thereon as the scanning element, at least one driving actuator (150) connected to the mass platform (110) through at least one flexure structure (120). The driving actuator (150) drives the mass platform (110) into an in-plane vibratory motion (190).