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. 20, 2026
Filed:
Oct. 20, 2022
Commissariat a L'energie Atomique ET Aux Energies Alternatives, Paris, FR;
Ludovic Dupre, Grenoble Cedex, FR;
Hélène Fournier, Grenoble Cedex, FR;
Abstract
A surface treatment method includes providing a substrate with a surface having areas of selective epitaxy of a first material and masses of matter of the first material; forming a protection layer, produced in a second material, on the surface of the substrate; and forming a flattening layer on the protection layer. Areas of the flattening layer facing the masses of matter and top areas of the protection layer are removed so as to expose the masses of matter. Lateral areas of the protection layer are etched by a selective wet chemical etching. The flattening layer is removed; the masses of matter are etched, the protection layer forming an etch mask; and protection layer is removed.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile