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US 11,796,966 B2Granted
Method for producing a silicon-based timepiece spring
AssigneePatek Philippe SA Geneve
InventorsSylvain Jeanneret, Frédéric Maier, Jean-Luc Bucaille
Life of this patent
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Abstract
A method for producing a timepiece spring includes the following steps: producing a piece based on silicon, having the desired shape of the timepiece spring; thermally oxidising the piece; deoxidising the piece; annealing the piece in a reducing atmosphere; forming a silicon oxide layer on the piece.
Claims20
Method for producing a timepiece spring, comprising the following steps:
- a) producing a piece based on silicon, having the desired shape of the timepiece spring or comprising a part having the desired shape of the timepiece spring,
- b) thermally oxidising the piece,
- c) deoxidising the piece,
- d) annealing the piece in a reducing atmosphere,
- e) forming a silicon oxide layer on the piece.
2 more elements
Method for producing a timepiece spring, comprising the following steps:
- a) producing a piece based on silicon, having the desired shape of the timepiece spring or comprising a part having the desired shape of the timepiece spring,
- b) annealing the piece in a reducing atmosphere,
- c) thermally oxidising the piece,
- d) deoxidising the piece,
- e) forming a silicon oxide layer on the piece.
2 more elements
Dependencies are inferred from the claim text.