Abstract:
The invention relates to a method (1) of manufacturing a silicon-metal composite micromechanical component (51) combining DRIE and LIGA processes.The invention also relates to a micromechanical component (51) including a layer wherein one part (53) is made of silicon and another part (41) of metal so as to form a composite micromechanical component (51).The invention concerns the field of timepiece movements.
Abstract:
Disclosed herein is a method of fabricating nano-components using nanoplates, including the steps of: printing a grid on a substrate using photolithography and Electron Beam Lithography; spraying an aqueous solution dispersed with nanoplates onto the grid portion to position the nanoplates on the substrate; depositing a protective film of a predetermined thickness on the substrate and the nanoplates positioned on the substrate; ion-etching the nanoplates deposited with the protective film by using a Focused Ion Beam (FIB) or Electron Beam Lithography; and eliminating the protective film remaining on the substrate using a protective film remover after the ion-etching of the nanoplates, and a method of manufacturing nanomachines or nanostructures by transporting such nano-components using a nano probe and assembling with other nano-components. The present invention makes it possible to fabricate the high-quality nano-components in a more simple and easier manner at a lower cost, as compared to other conventional methods. Further, the present invention provides a method of implementing nanomachines through combination of such nano-components and biomolecules, etc.
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:
A substrate on which a plurality of thin films having a plurality of cross-sections corresponding to the cross-section of a micro-structure are formed is placed on a substrate holder. The substrate holder is elevated to bond a thin film formed on the substrate to the surface of a stage, and by lowering the substrate holder, the thin film is separated from the substrate and transferred to the stage side. The transfer process is repeated to laminate a plurality of thin films on the stage and to form the micro-structure. Accordingly, there are provided a micro-structure having high dimensional precision, especially high resolution in the lamination direction, which can be manufactured from a metal or an insulator such as ceramics and can be manufactured in the combined form of structural elements together, and a manufacturing method and an apparatus thereof.
Abstract:
A process is disclosed whereby a 5-50-nanometer-thick conformal tungsten coating can be formed over exposed semiconductor surfaces (e.g. silicon, germanium or silicon carbide) within a microelectromechanical (MEM) device for improved wear resistance and reliability. The tungsten coating is formed after cleaning the semiconductor surfaces to remove any organic material and oxide film from the surface. A final in situ cleaning step is performed by heating a substrate containing the MEM device to a temperature in the range of 200-600 ° C. in the presence of gaseous nitrogen trifluoride (NF3). The tungsten coating can then be formed by a chemical reaction between the semiconductor surfaces and tungsten hexafluoride (WF6) at an elevated temperature, preferably about 450° C. The tungsten deposition process is self-limiting and covers all exposed semiconductor surfaces including surfaces in close contact. The present invention can be applied to many different types of MEM devices including microrelays, micromirrors and microengines. Additionally, the tungsten wear-resistant coating of the present invention can be used to enhance the hardness, wear resistance, electrical conductivity, optical reflectivity and chemical inertness of one or more semiconductor surfaces within a MEM device.
Abstract:
A process for manufacturing a micromachine comprising a machine element supported on a substrate, comprising the steps of successively depositing on the substrate machine part layers and removable sacrificial layers made of an oxide ceramic material containing a rare earth, Ba, and Cu, and selectively removing the machine parts layer and the sacrificial layers so as to leave the machine element.
Abstract:
A diamond surface is selectively etched by forming a mask on a surface of diamond, and etching the diamond surface with a mixture of oxygen-containing gas and an inert gas, in which a concentration of oxygen in terms of O.sub.2 is from 0.01 to 20% based on the whole volume of the mixture.
Abstract:
L'invention concerne un ensemble fonctionnel (100) de micromécanique comprenant au moins une première pièce (10), ayant une première couche définissant une première surface de contact destinée à venir en contact de frottement avec une deuxième surface de contact définie par une deuxième couche ladite deuxième couche appartenant, soit à ladite première pièce (10) soit à au moins une deuxième pièce de micromécanique (20) constituant avec ladite première pièce (10) ledit ensemble (100) caractérisé en ce que les première et deuxième couches comportent chacune du carbone à hauteur d'au moins 50% d'atomes de carbone et en ce qu'elles présentent au niveau des première et deuxième surfaces de contact des orientations de plans cristallins en surface différentes l'une de l'autre.
Abstract:
Method for coating micromechanical components of a micromechanical system, in particular a watch movement, comprising: - providing a substrate component to be coated; - providing said component with a diamond coating; wherein said diamond coating conductivity is increased in order to reduce dust attraction by the coated component when used in said micromechanical system. Corresponding microchemical components and systems are also provided.
Abstract:
Die Erfindung betrifft ein mikromechanisches Bauteil mit einer ersten Oberfläche und einer zweiten Oberfläche, die aufeinander im wesentlichen senkrecht stehen, wobei die erste und/oder die zweite Oberfläche zumindest bereichsweise aus Diamant (C i ), A1 X O y , Si X C y , Si X N y , Si X O y N y-1 , metallischen Karbiden der Gruppen 4,5 oder 6 des Periodensystems und/oder Zirkonverbindungen, insbesondere Zr X O y , bestehen, wobei x und y positive ganze Zahlen sind.