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Method for manufacturing a timepiece component and component produced by this method

A technology for clock components and components, which can be used in clocks, clocks, household components, etc., and can solve problems such as inability to manufacture

Pending Publication Date: 2021-06-18
NIVAROX FAR
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0018] These methods can only manufacture parts whose basic geometry is cylindrical and cannot manufacture parts containing complex geometries such as beveled edges or chamfers

Method used

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  • Method for manufacturing a timepiece component and component produced by this method
  • Method for manufacturing a timepiece component and component produced by this method
  • Method for manufacturing a timepiece component and component produced by this method

Examples

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Embodiment Construction

[0045] The invention relates to a method of manufacturing at least one timepiece component.

[0046] The first step a) comprises providing a substrate 1, and successively depositing a conductive layer 2 and a photosensitive resin layer 3 thereon.

[0047] The substrate 1 used in step a) of the method according to the invention is formed, for example, from a silicon substrate. During the first step a) of the method, an electrically conductive layer 2 , ie a layer capable of initiating galvanic deposition of metals, is deposited, for example by physical vapor deposition (PVD). Typically, the conductive layer 2 is of the Au, Ti, Pt, Ag, Cr or Pd type ( figure 1 ), or a stack of at least two of these materials, and have a thickness of 50 nm to 500 nm. For example, the conductive layer 2 may be formed from a sub-layer of chromium or titanium coated with a layer of gold or copper.

[0048] The photosensitive resin 3 used in this method is preferably an octafunctional epoxy-type ...

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Abstract

The invention relates to a method for manufacturing a metallic timepiece component, and the method is characterized by comprising the step of forming a multi-layered photosensitive resin mould by means of a LIGA-UV method and the step of electroplating deposition of a layer of at least one metal using at least two electrically conductive layers to form a block substantially reaching the top surface of the photosensitive resin.

Description

technical field [0001] The present invention relates to a method of manufacturing multi-level complex metal structures by means of LIGA technology. The invention also relates to such metal structures, in particular timepiece components, obtained in this way. Background technique [0002] Methods meeting the above definition are known. In particular, the article titled "Metallic Microstructures Fabricated Using Photosensitive Polyimide Electroplating molds" by A. B. Frazier et al. and published in the Journal of Microelectromechanical systems (Vol. 2, N deg. 2, June 1993) describes the A method of fabricating multi-level metal structures by galvanic growth in a polyimide mold made by photolithography of a photosensitive resin layer. This method includes the following steps: [0003] - Fabrication of sacrificial metal layers and priming layers on the substrate for subsequent electroplating growth steps, [0004] - Laying of the photosensitive polyimide layer, [0005] - i...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G03F7/00G03F7/40G04B15/14C25D5/10C25D5/02C25D1/00C23C2/26C23C2/02B81C99/00
CPCG03F7/0002G03F7/0035C25D5/10C23C2/02C25D5/022C25D1/003G03F7/405C23C2/26B81C99/0085G04B15/14G04B19/12C25D7/005G04B13/02G03F7/40G04D3/00B29C70/34B29L2031/739
Inventor P·库辛A·甘德尔曼M·慕西C·戈尔菲耶尔
Owner NIVAROX FAR