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:
Sep. 14, 2021

Filed:

Jun. 19, 2019
Applicant:

Safran Electronics & Defense, Paris, FR;

Inventors:

Cédric Autie, Paris, FR;

Thibault Porteboeuf, Paris, FR;

Assignee:
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G06F 21/76 (2013.01); G06F 1/10 (2006.01); G06F 30/398 (2020.01); G06F 30/394 (2020.01);
U.S. Cl.
CPC ...
G06F 21/76 (2013.01); G06F 1/10 (2013.01); G06F 30/394 (2020.01); G06F 30/398 (2020.01);
Abstract

A protection method for protecting an FPGA against natural radiation, the method comprising the steps of: defining at least one category of constraining signals defined so that a predetermined placement and routing tool cannot route more than a determined maximum number of different constraining signals to any one zone of the surface of the FPGA; replicating an initial logic module in order to obtain a plurality of replicated logic modules forming a replicated logic cell; and associating constraining signals with the replicated logic modules in such a manner that the number of constraining signals associated with the replicated logic cell is greater than a determined maximum number in order to force the placement and routing tool to place the replicated logic modules of the replicated logic cell in distinct zones of the surface of the FPGA.


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