Abstract:
Embodiments of a structure and embodiments of methods for fabricating structures provide three dimensional features defined by exposure to multiple wavelengths of light. In an embodiment, material is exposed to two different wavelengths of light. Embodiments of three dimensional structures may provide a variety of three-dimensional structural features and characteristics.
Abstract:
In order that a worm 1 is rotated, a clearance (a region constituting a clearance portion between bearings and a worm gear) is formed (FIGS. 4(1) to (3)) in an upper surface of a base plate 3. A mold 12 for forming a lower half region of the worm therein is formed (FIG. 4(8)). A material 5 for the worm is deposited (FIG. 4(9)) to a height equal to that of a lower half region plus that of an upper half of the worm. An upper half of the worm is formed (FIGS. 4(10) to (12). Finally, the material 13 in the clearance between the base plate 3 and gear 1 is removed (FIG. 4(13)).
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:
A process in which micromechanical bushings can be made and the application of such process to making micromechanical devices. Bushings are made on a surface of a stationary structure extending from a planar surface. The bushings are separated from the stationary structure by a sacrificial layer. The stationary structure, the bushing and the planar surface are then further processed by coating with a second sacrificial layer, and a structural layer. The structural layer is patterned into a movable structure that is held onto the stationary structure by a curved, undercut edge such as gear on stool. Final processing includes removing both sacrificial layers to free the movable structure, the bushing, and the stationary structure from each other. The bushing is trapped between the movable structure and the stationary structure but able to move freely.
Abstract:
The present invention relates to a free-standing single crystalline diamond part and a single crystalline diamond part production method. The method includes the steps of: - providing a single crystalline diamond substrate or layer; - providing a first adhesion layer on the substrate or layer; - providing a second adhesion layer on the first adhesion layer: - providing a mask layer on the second adhesion layer; - forming at least one indentation or a plurality of indentations through the mask layer and the first and second adhesion layers to expose a portion or portions of the single crystalline diamond substrate or layer; and - etching the exposed portion or portions of the single crystalline diamond substrate or layer and etching entirely through the single crystalline diamond substrate or layer.
Abstract:
The invention relates to a method for producing bodies having surface structures in the micrometer or nanometer range, wherein the stamping section of a stamping tool is pressed several times against various locations of the surface of a body by means of a hardness testing device, whereby recesses are stamped at the pressing locations, and wherein a stamping tool having an elongated stamping section is used and corresponding channels or line-like structure are produced in the body.
Abstract:
Method for coating micromechanical components of a micromechanical system, in particular a watch movement, comprising: providing a substrate (4) component to be coated; providing said component with a first diamond coating (2) doped with boron; providing said component with a second diamond coating (3); wherein :said second diamond coating (3) is provided by CVD in a reaction chamber; during CVD deposition, during the last portion of the growth process, a controlled increase of the carbon content within the reaction chamber is provided, thereby providing an increase of the sp2/sp3 carbon (6) bonds up to an sp2 content substantially between 1% and 45%. Corresponding micromechanical components are also provided.
Abstract:
Le procédé de fabrication d'une pièce micromécanique en silicium renforcé comporte les étapes de : - micro-usiner la pièce, ou un lot de pièces dans une plaquette de silicium; - former, sur toute la surface de la pièce, en une ou plusieurs étapes, une couche de dioxyde de silicium, de manière à obtenir une épaisseur de dioxyde de silicium au moins cinq fois supérieure à l'épaisseur d'un dioxyde de silicium natif; - retirer la couche de dioxyde de silicium par attaque chimique.
Abstract:
Le procédé comporte les étapes suivantes : a) usiner dans une première plaquette de silicium (1) un premier élément (3) ou une pluralité desdits premiers éléments (3) en maintenant lesdits éléments (3) liés par des ponts de matière (5); b) répéter l'étape a) avec une deuxième plaquette de silicium (2) pour usiner un deuxième élément (4), de forme différente de celle du premier élément (3), ou une pluralité desdits deuxièmes éléments (4); c) à l'aide de moyens de positionnement (6, 7), appliquer face contre face les premiers et deuxièmes éléments (3, 4) ou les premières et deuxièmes plaquettes (1, 2); d) effectuer une oxydation de l'ensemble formé à l'étape c) et e) séparer les pièces (10) des plaquettes (1, 2). Pièces de micromécanique horlogère obtenue selon le procédé.
Abstract:
The present invention discloses a device (CD) for converting a first motion (x s ) into a second motion (Δy) responsive to said first movement (x s ) under a demagnif ication scale (i), comprising: a) an input portion (IP) being drivable in a rectilinear translation in a first direction (x) by an actuator (AC) causing said first motion (x s ); b) an output portion (OP) being movable by a converting blade (CB) causing said second motion (Δy) responsive to said first motion (x s ) in a second direction (y) substantially perpendicular to said first direction (x); and c) a converting section (CS) connecting said input portion (IP) to said output portion (OP); said converting section (CS) comprising an intermediate spring portion (ITP) and the converting blade (CB), cl) wherein said intermediate spring portion (ITP) comprises at least two parallel flexure blades (FBI, FB2); and c2) wherein said converting blade (CB) being substantially- identical in shape to the a least two parallel flexure blades (FBI, FB2) and being offset from its neutral position by a predetermined amount (x 0 ) in the first direction (x) as compared to the neutral position of the at least two parallel flexure blades (FBI, FB2). This device has a flexure-based structure that allows combining the advantages of classical actuators with accuracies in the micrometer range and the advantages of flexures to achieve nanometer accuracy.