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.

Date of Patent:
Oct. 22, 2019

Filed:

Dec. 14, 2016
Applicant:

Stmicroelectronics (Crolles 2) Sas, Crolles, FR;

Inventor:

Sylvain Clerc, Grenoble, FR;

Assignee:
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G01R 31/28 (2006.01); G01R 31/30 (2006.01); G01R 31/317 (2006.01); H03K 5/133 (2014.01); H03K 19/003 (2006.01);
U.S. Cl.
CPC ...
G01R 31/2882 (2013.01); G01R 31/3016 (2013.01); G01R 31/31725 (2013.01); H03K 5/133 (2013.01); H03K 19/00369 (2013.01);
Abstract

A device for monitoring a critical path of an integrated circuit includes a replica of the critical path formed by sequential elements mutually separated by delay circuits that are programmable though a corresponding main multiplexer. A control circuit controls delay selections made by each main multiplexer. A sequencing module operates to sequence each sequential element using a main clock signal by delivering, in response to a main clock signal, respectively to the sequential elements, secondary clock signals that are mutually time shifted in such a manner as to take into account the propagation time inherent to the main multiplexer.


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