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:
Jan. 25, 2011
Filed:
Apr. 18, 2007
Frédéric Dross, Schaarbeek, BE;
Emmanuel Van Kerschaver, Wezemaal, BE;
Guy Beaucarne, Oud-Heverlee, BE;
Frédéric Dross, Schaarbeek, BE;
Emmanuel Van Kerschaver, Wezemaal, BE;
Guy Beaucarne, Oud-Heverlee, BE;
IMEC, Leuven, BE;
Katholieke Universiteit Leuven, K.U. Leuven R&D, Leuven, BE;
Abstract
A method is provided for producing a thin substrate with a thickness below 750 microns, comprising providing a mother substrate, the mother substrate having a first main surface and a toughness; inducing a stress with predetermined stress profile in at least a portion of the mother substrate, said portion comprising the thin substrate, the induced stress being locally larger than the toughness of the mother substrate at a first depth under the main surface; such that the thin substrate is released from the mother substrate, wherein the toughness of the mother substrate at the first depth is not lowered prior to inducing the stress. The method can be used in the production of, for example, solar cells.