Nivarox-far S.a.

The Swatch Group Research and Development Ltd

Alex Gandelhman

Pierre Cusin

Michel Musy

Gianni Di Domenico

Dominique Lechot

Jerome Favre

Baptiste Hinaux

Olivier Matthey

Jean-Luc Helfer

Pascal Winkler

Clare Golfier

Marco Verardo

Jérôme Favre

Laurent Klinger

Anguel Kostadinov

Andre Pin

Dominique Léchot

André Pin

Martial Chabloz

A method for fabricating a metallic timepiece component, wherein the method includes the steps of forming, via a UV-LIGA type process combined with hot stamping, a multi-level photosensitive resin mould and electroplating a layer of at least one metal from at least two conductive layers to form a block that substantially reaches the upper surface of the photosensitive resin.

Method of fabricating a timepiece component and component obtained from this method

A method for manufacturing metal horological components, includes the steps of forming a multilevel mould made of a photosensitive resin, with a UV-LIGA method, and galvanically depositing a layer of at least one metal starting from a conductive layer in order to form a block that substantially reaches the upper surface of the photosensitive resin.

Method for manufacturing a horological component and component produced according to said method

The invention relates to a method for fabrication of a one-piece, metal-based component of simple shape offering the illusion of faceting and/or chamfering for forming all or part of the exterior part of a timepiece.

Method for fabrication of a metal component with at least one optical illusion design

A one-piece silicon device with flexible blades (), in particular for timepieces, for example a pivot with crossed blades, and to a method for manufacturing the device (). The method includes: forming () a one-piece silicon device () blank from a wafer of the SOI type, the device () including two flexible blades (), each formed in a different layer of the SOI wafer, the blades () being arranged in two different substantially parallel planes, the blades () being separated by a clearance (); growing a first silicon oxide layer on the surface of at least one of the blades () bordering the clearance, the first silicon oxide layer being formed from a first sub-layer of silicon of the one or more blades (); and removing the first silicon oxide layer to increase the clearance () between the two blades ().

Method for manufacturing a one-piece silicon device with flexible blades, in particular for timepieces

A method for making a flexure bearing for an oscillator with an inertial element oscillating in a plane supported by flexible strips fixed to a stationary support returning it to a rest position includes: forming the bearing with basic strips in superposed levels, each having an aspect ratio of less than 10; breaking down the number of basic levels into a plurality of sub-units, each including one or two strips joining a basic support and a basic inertial element, which are made by etching substrates; assembling the sub-units by joining their basic inertial elements; and fixing the basic supports to the support, directly or via translational tables along one or two in-plane translational degrees of freedom, of lower translational stiffness than that of the sub-unit.

Method for making a flexure bearing mechanism for a mechanical timepiece oscillator

A method for manufacturing metallic horological components includes the steps of forming a LIGA-UV type method a multi-level photosensitive resin mould and of galvanically depositing a layer of at least one metal using at least two conductive layers to form a block substantially reaching the top surface of the photosensitive resin.

Method for manufacturing a horological component and component obtained according to this method

A method for producing a thermocompensated and coloured coil spring including the steps of forming a first layer of silicon oxide on at least one face of the core and on at least one other face of the core, the first layer having a thickness equal to a fraction of the thickness required for achieving thermal compensation, removing the first layer from at least one face of the core, forming a second layer of silicon oxide on at least one face of the core and on at least one other face of the core, the second layer having a thickness equal to the remaining fraction of the thickness required for achieving thermal compensation which is lower than or equal to 1 &#x3bc;m for giving at least one face of the core a colour as a result of the interference effect.

Coloured thermocompensated spiral and a method for the production thereof

A system including two components intended to be in friction contact with each other in a given direction, wherein the friction occurs in a functional area, wherein the system is at least one of the two components including, on a surface in the functional area, a texture formed of a series of troughs of rounded shape separated by peaks or a series of bumps of rounded shape separated by troughs, the troughs extending parallel in the given direction and allowing for the evacuation of debris produced by friction and serving as a reservoir for a lubricant. A method for manufacturing at least one component or a mold by the DRIE (deep reactive ion etching) process, wherein surface defects on the sidewalls machined by the DRIE process are used to form the troughs.

Component especially for horology with surface topology and method for manufacturing the same

A mechanical timepiece oscillator includes, between a support and an inertial element, a flexure bearing with flexible strips crossed in projection, including, superposed, an upper level that includes, between an upper support and an upper inertial element, an upper primary strip in a first direction and an upper secondary strip in a second direction, and a lower level that includes, between a lower support and a lower inertial element, a lower primary strip in the first direction and a lower secondary strip in the second direction. The upper level and lower level include, between the support and the upper or respectively lower support, a translational table with an elastic connection along one or two axes of freedom in the oscillation plane, of lower stiffness than that of each flexible strip.

Timepiece oscillator with flexure bearings having a long angular stroke

A mechanical timepiece oscillator including, between a first element and a second inertial element, more than two distinct flexible strips returning the inertial element to a rest position in an oscillation plane, wherein the projections of these strips cross each other, at a point, through which passes the axis of pivoting of the second solid inertial element, and the height to thickness aspect ratio is less than 10 for each strip.

A method for manufacturing a flexible strip, including forming a plate of the required thickness with one or more micromachinable substrate wafers; affixing, on either side of the plate, an upper mask with an upper window and a lower mask with a lower window, of identical geometry; etching the plate, at least to mid-thickness, from the upper side of each upper etching window, and from the side of each lower etching window; removing the upper mask and the lower mask, to delimit a flexible strip having a height equal to the thickness of the plate, and whose edges are as-etched. A flexible strip made of micromachinable material, including, between two parallel upper and lower surfaces, two peripheral, tapered and reverse-tapered edge surfaces, for a flexible pivot, a resonator, a movement or a watch.

Flexible strip for horology and method for manufacturing the same

The invention relates to a silicon-based component with at least one chamfer formed from a method combining at least one oblique side wall etching step with a 'Bosch' etching of vertical side walls, thereby enabling aesthetic improvement and improvement in the mechanical strength of components formed by micromachining a silicon-based wafer.

Silicon-based component with at least one chamfer and its fabrication method

The invention relates to a method for fabrication of a one-piece, silicon-based component of simple shape offering the illusion of faceting and/or chamfering for forming all or part of the exterior part of a timepiece.

Method for fabrication of a silicon-based component with at least one optical illusion pattern

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.

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Neuchatel, Switzerland

Alex Gandelhman