Abstract:
L'invention se rapporte à un procédé de fabrication (1) d'une pièce de micromécanique (51) composite silicium - métal combinant des processus du type DRIE et LIGA. L'invention se rapporte également à une pièce de micromécanique (51) comprenant une couche dans laquelle une partie (53) est en silicium et une autre (41) en métal afin de former une pièce de micromécanique (51) du type composite. L'invention concerne le domaine des mouvements horlogers.
Abstract:
Un composant horloger, par exemple un balancier (1), une masse oscillante (12) ou une roue (20), comprend une structure (2) réalisée par une technique de micro-fabrication, par exemple Ia technique DRIE. Le composant est caractérisé en ce qu'il comprend en outre au moins un élément (3) formé dans ou à Ia périphérie de Ia structure (2) et dans un matériau différent de celui de Ia structure (2). Cet élément (3) est typiquement métallique et formé par un électro-formage utilisant une cavite (7) de Ia structure (2) comme moule.
Abstract:
A micro machine may be in or less than the micrometer domain. The micro machine may include a micro actuator and a micro shaft coupled to the micro actuator. The micro shaft is operable to be driven by the micro actuator. A tool is coupled to the micro shaft and is operable to perform work in response to at least motion of the micro shaft. In accordance with other aspects of the disclosure methods and systems for micro transmissions for micro machines may be provided. Micro machines may include micro structures configured to move into engagement with other micro structures. A micro drive assembly may comprise a substrate, a micro shaft oriented in-plane with the substrate and at least one micro bearing to support rotation of the shaft. For example micro machines may include micro rotary machines and micro transport machines.
Abstract:
The present invention is focused on a revolutionary, low-cost (highly-scaleable) approach for the mass production of three-dimensional microcomponents: the biological reproduction of naturally-derived, biocatalytically-derived, and/or genetically-tailored three-dimensional microtemplates (e.g., frustules of diatoms, microskeletons of radiolarians, shells of mollusks) with desired dimensional features, followed by reactive conversion of such microtemplates into microcomponents with desired compositions that differ from the starting microtemplate and with dimensional features that are similar to those of the starting microtemplate. Because the shapes of such microcomponents may be tailored through genetic engineering of the shapes of the microtemplates, such microcomposites are considered to be Genetically-Engineered Materials (GEMs).
Abstract:
The present invention relates to a method for producing a timepiece comprising at least one first part produced by a microfabrication or microforming method in at least one first material, said method comprising at least: a step of depositing, on said first part, without moulding, at least one second part of said timepiece in at least one second material, and a step of treating the second material in order to connect together the components on the first part.
Abstract:
A method for fabrication of a micromechanical part made of a one-piece synthetic carbon allotrope based material, the method including: forming a substrate with a negative cavity of the micromechanical part to be fabricated; coating the negative cavity of the substrate with a layer of the synthetic carbon allotrope based material in a smaller thickness than the depth of the negative cavity; and removing the substrate to release the one-piece micromechanical part formed in the negative cavity.
Abstract:
A functional micromechanical timepiece assembly including at least a first component, including a first layer defining a first contact surface configured to come into friction contact with a second contact surface defined by a second layer, the second layer belonging, either to the first component, or to at least a second micromechanical component forming the assembly with the first component. The first and second layers each include carbon with at least 50% carbon atoms and, on the first and second contact surfaces, the layers have different surface crystalline plane orientations from each other.
Abstract:
The invention relates to a silicon-based component with at least one reduced contact surface which, formed from a method combining at least one oblique side wall etching step with a “Bosch” etch of vertical side walls, improves, in particular, the tribology of components formed by micromachining a silicon-based wafer.
Abstract:
A method of fabricating a micromechanical part in a single-piece made of a synthetic carbon-allotrope includes forming a substrate which includes the negative cavity for the micromechanical part to be fabricated, coating the negative cavity of the substrate with a layer of the synthetic carbon allotrope in a thickness of between 0.2 μm and 20 μm, the thickness being less than the depth of the negative cavity, removing from the substrate a larger thickness than the thickness of the deposited layer, so as to leave a limited thickness of the layer of material in the negative cavity, and removing the substrate so as to release the single-piece micromechanical part formed in the negative cavity comprising an external surface of comparable roughness to that of the substrate.
Abstract:
A method for fabrication of a micromechanical part made of a one-piece synthetic carbon allotrope based material, the method including: forming a substrate with a negative cavity of the micromechanical part to be fabricated; coating the negative cavity of the substrate with a layer of the synthetic carbon allotrope based material in a smaller thickness than the depth of the negative cavity; and removing the substrate to release the one-piece micromechanical part formed in the negative cavity.