The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Oct. 03, 2023
Filed:
Jan. 14, 2021
Nivarox-far S.a., Le Locle, CH;
Pierre Cusin, Villars-Burquin, CH;
Alex Gandelhman, Colombier, CH;
Nivarox-FAR S.A., Le Locle, CH;
Abstract
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 ().