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:
Dec. 02, 2025
Filed:
Jan. 03, 2024
Soitec, Bernin, FR;
Didier Landru, Le Champ-près-Froges, FR;
Soitec, Bernin, FR;
Abstract
A hybrid structure includes a support substrate having a first coefficient of thermal expansion and a support thickness, and an effective layer disposed on and molecularly bonded to the support substrate along a bonding interface having a bonding energy greater than or equal to 1000 mJ/m. The effective layer has an effective thickness and a second coefficient of thermal expansion greater than the first coefficient of thermal expansion of the support substrate. One or more non-bonded areas are present at the bonding interface between the effective layer and the support substrate. The effective thickness is less than a threshold thickness at which buckling of the effective layer occurs upon annealing of the hybrid structure at a temperature of 400° C.±200° C.