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:
Jun. 18, 2013
Filed:
Dec. 09, 2011
Laurent-luc Chapelon, Domene, FR;
Julien Cuzzocrea, Grenoble, FR;
Laurent-Luc Chapelon, Domene, FR;
Julien Cuzzocrea, Grenoble, FR;
STMicroelectronics (Crolles 2) SAS, Crolles Cedex, FR;
Abstract
Front-side integrated parts of integrated-circuit chips are produced at locations on a substrate wafer. The front-side parts have a front side. A support wafer having a bearing side is mounted with the bearing side on top of said front-side parts. The support wafer includes at least one weak surface layer. This weak surface layer is attached to the substrate wafer using a retaining adhesive. In one implementation, the weak surface layer is attached to a front surface of the wafer. In another implementation, the weak surface layer is attached to a peripheral edge of the wafer. After attaching the support wafer, back-side integrated parts of the integrated-circuit chips are produced on the substrate wafer. The weak surface layer is then destroyed so as to demount the support wafer from the substrate wafer.