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:
Jul. 02, 2013
Filed:
Jun. 16, 2011
Michel Bruel, Veurey Voroize, FR;
Bernard Aspar, St. Ismier, FR;
Chrystelle Lagahe-blanchard, Crolles, FR;
Michel Bruel, Veurey Voroize, FR;
Bernard Aspar, St. Ismier, FR;
Chrystelle Lagahe-Blanchard, Crolles, FR;
Soitec, Bernin, FR;
Abstract
This invention provides composite semiconductor substrates and methods for fabricating such substrates. The composite structures include a semiconductor substrate, a semiconductor superstrate and an intermediate layer interposed between the substrate and the superstrate that comprises a material that undergoes a structural transformation when subject to a suitable heat treatment. The methods provide such a heat treatment so that the intermediate layer becomes spongy or porous, being filled with numerous micro-bubbles or micro-cavities containing a gaseous phase. The composite semiconductor substrates with structurally-transformed intermediate layers have numerous applications.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile