The Swatch Group Research and Development Ltd

Nivarox-Far S.a.

Eta Sa Manufacture Horlogere Suisse

David Richard

Pierre Cusin

Philippe Dubois

Jean-Luc Helfer

Thierry Hessler

Stewes Bourban

Andrés Cabezas Jurin

Christophe Letondor

Nicolas Rebeaud

Sebastien Graf

Detlef Steinmuller

Sébastien Graf

Doris Steinmuller

Herwig Drexel

Slimane Ghodbane

Detlef Steinmüller

Doris Steinmüller

Piotr Mazanowski

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.

Functional micromechanical assembly

A method for manufacturing a component in a substrate including: a) modifying a structure of at least one region of the substrate to make the at least one region more selective; and b) chemically etching the at least one region to selectively manufacture the component.

Method for creating a component

The present invention relates to an agent in particular for the surface epilamization of an article comprising one or more molecules having the general formula (1)A-F&#x2003;&#x2003;(1)wherein: The invention pertains to the technical field of epilame for timepiece mechanical parts.

Agent for the surface epilamization of an article

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 &#x3bc;m and 20 &#x3bc;m, 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.

Complex micromechanical part

Method for coating micromechanical components of a micromechanical system, in particular a watch movement, comprising: wherein diamond coating is provide by CVD in a reaction chamber and during CVD deposition, during the last portion of the growth process, a controlled change of the carbon content within the reaction chamber is provided, thereby providing a change of the sp2/sp3 carbon bonds in the vicinity of the surface. Corresponding micromechanical components are also provided.

Method for coating micromechanical parts with high tribological performances for application in mechanical systems

The invention relates to a method of fabricating a micromechanical part made of a single piece material. According to the invention, the method includes the following steps: a) forming a substrate which includes the negative cavity for said micromechanical part to be fabricated; b) forming a sacrificial layer on one portion of the substrate; c) depositing particles on the substrate intended to form a germ ination layer; d) removing the sacrificial layer so as to selectively leave one portion of the substrate free of any particles; e) depositing a layer of material by chemical vapour phase deposition so that the material is exclusively deposited where the particles remain; f) removing the substrate to release the micromechanical part formed in said negative cavity.

Complex pierced micromechanical part

The invention concerns a escapement lever () for the escapement mechanism of a timepiece movement, including at least one fork delimiting a notch () which includes horns () arranged for cooperating with a balance. Said fork notch () includes, in at least one said horn (), a slot () and/or a chamber (), wherein said slot () and/or chamber () is arranged to confer elasticity on the corresponding horn, which softens the shock at each impulse, by absorbing part of the impact energy, and then returning it subsequent to said impact.

Wear and shock resistant escapement lever for a timepiece movement

Growing community of inventors

Yverdon-les-Bains, Switzerland

David Richard