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. 22, 2013
Filed:
Aug. 25, 2011
Applicant:
Michel Bruel, Veurey Voroize, FR;
Inventor:
Michel Bruel, Veurey Voroize, FR;
Assignee:
Soitec, Bernin, FR;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H01L 29/66 (2006.01); H01L 29/76 (2006.01); H01L 21/76 (2006.01); H01L 21/26 (2006.01);
U.S. Cl.
CPC ...
Abstract
The invention relates to a detachable substrate for the electronics, optics or optoelectronics industry, that includes a detachable layer resting on a buried weakened region. This substrate is remarkable in that this buried weakened region consists of a semiconductor material that is denser in the liquid state than in the solid state and that contains in places precipitates of naturally volatile impurities. The invention also relates to a process for fabricating and detaching a detachable substrate.