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. 23, 2018
Filed:
Jun. 25, 2015
Applicant:
Stmicroelectronics S.r.l., Agrate Brianza, IT;
Inventors:
Alessandro Freguglia, Bollate (MI), IT;
Luca Pividori, Curno (BG), IT;
Assignee:
STMicroelectronics S.r.l., Agrate Brianza, IT;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H01L 23/544 (2006.01); H01L 21/02 (2006.01); H01L 21/78 (2006.01);
U.S. Cl.
CPC ...
H01L 23/544 (2013.01); H01L 21/02065 (2013.01); H01L 21/78 (2013.01); H01L 2924/0002 (2013.01);
Abstract
A method for indexing electronic devices includes: forming first chips in a first wafer, forming second chips in a second wafer, forming the electronic devices by coupling each first chip with a corresponding second chip, and forming an index on each electronic device. The index is indicative of a position of the corresponding first chip in the first wafer. The step of forming an index includes forming a first portion of the index on the first chip, and forming a second portion of the index on the second chip.