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:
Mar. 08, 2022
Filed:
Feb. 05, 2019
Applicant:
Stmicroelectronics (Rousset) Sas, Rousset, FR;
Inventors:
Assignee:
STMicroelectronics (Rousset) SAS, Rousset, FR;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H01L 23/00 (2006.01); G06F 21/77 (2013.01); G06F 21/75 (2013.01); G06K 19/073 (2006.01);
U.S. Cl.
CPC ...
H01L 23/57 (2013.01); G06F 21/75 (2013.01); G06F 21/77 (2013.01); G06K 19/07372 (2013.01); H01L 23/576 (2013.01);
Abstract
A semiconductor substrate of an integrated circuit is protected by a coating. The semiconductor includes a front face and a rear face. To detect a breach of the integrity of a semiconductor substrate of an integrated circuit from the rear face, an opening of the coating facing the rear face of the substrate is detected. In response thereto, an alarm is generated. The detection is performed by making resistance measurements with respect to the semiconductor substrate and comparing the measured resistance to a nominal resistive value of the semiconductor substrate.