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:
May. 07, 2024

Filed:

Sep. 20, 2021
Applicant:

International Business Machines Corporation, Armonk, NY (US);

Inventors:

Carl Radens, LaGrangeville, NY (US);

Lawrence A. Clevenger, Saratoga Springs, NY (US);

Daniel James Dechene, Albany, NY (US);

Hsueh-Chung Chen, Cohoes, NY (US);

Attorneys:
Primary Examiner:
Int. Cl.
CPC ...
G06F 30/00 (2020.01); G06F 21/16 (2013.01); G06F 30/20 (2020.01); G06F 30/30 (2020.01); H05K 3/00 (2006.01);
U.S. Cl.
CPC ...
G06F 21/16 (2013.01); G06F 30/00 (2020.01); G06F 30/20 (2020.01); G06F 30/30 (2020.01); H05K 3/00 (2013.01);
Abstract

Methods and systems for watermarking a circuit design include defining a watermarked cell library that includes cells, each of which defines a design structure that corresponds to a manufacturable physical structure, at least one of which being a watermarked call that includes a watermark. The watermark is encoded using a design structure that extends beyond a respective cell boundary. A first circuit design file is generated for a device to be manufactured. The first circuit design file including at least one watermarked cell. The first circuit design file is sent to a manufacturer for fabrication of a corresponding device that includes a watermark structure that encodes an identifier.


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